Journal articles on the topic 'European jays feeding habits'

Many European smelt, Osmerus eperlanus, in tributary rivers to the North Sea are affected by granulomatosis in the buccal cavity. The granulomas are caused by spines and leg fragments of amphipods, an important food item of smelt. Granuloma prevalence increases with increasing fish size. The rate of increase slows down in very large fish, probably as an effect of changed feeding habits. Fungi and virus-like particles in the granulomas are assumed to be secondary invaders. Granulomas are occasionally found in Atlantic cod, Gadus morhua, and flounder, Platichthys flesus, also.

Background. Pollution of the aquatic ecosystem by heavy metals is increasing due to anthropogenic activities. Cadmium (Cd) can accumulate in soil, be taken up by plants, and passed on in the food chain to animals and humans. Objectives. The present study was conducted to analyze the uptake of Cd in muscles of sampled fish with different feeding habits and to compare levels of Cd in fish from the Ayeyarwady River, Myanmar with international standards. Methods. The acid digestion procedure was used for sample preparation. Cadmium concentrations in fish samples were determined by flame atomic absorption spectrophotometry (Perkin Elmer AAanalyst 800 and Winlab-32 software). Results. In herbivorous fish species, Cd content ranged from 0.07 ( Catla catla ) to 0.086 mg/kg ( Osteobrama belangeri ). In carnivorous fish species, Cd ranged from 0.060 ( Mystus leucophasis ) to 0.083 mg/kg ( Wallago attu ). In omnivorous fish species, Cd ranged from 0.07 ( Botia histrionica ) to 0.084 mg/kg ( Gudusia variegata ). Cadmium content did not differ significantly across the three types of feeding habits (p>0.05). Discussion. The accumulation of Cd in the muscle of studied fish was lower than the permissible limit set down by the European Union in 2001 (0.1 ppm), but above the limits set down by the Food and Agriculture Organization/World Health Organization, European Commission (0.05 ppm) and within the limit of United States Food and Drug Administration (0.01–0.21 ppm). The data obtained in the present study indicate that levels of Cd were not significantly different across fish species with different feeding habits. Conclusions. The examined fish samples were not fully safe for human consumption due to high levels of Cd. Competing Interests. The authors declare no competing financial interests.

European cave salamanders of the genus Hydromantes are a group of eight species endemic to Italy and south-eastern France. Knowledge on the trophic niche of European Hydromantes is poor, and the few available studies only partially investigate their feeding habits. We performed an in-depth study on the trophic niche of the Ambrosi’s cave salamander (H. ambrosii), assessing the potential divergences among three different populations. All the populations had a similar diet composition, showing a wider trophic niche in fall compared to spring. In only one population, “true specialists” were present; however, in all three populations, generalist individuals always represented the larger proportion. Interspecific and intraspecific competition did not play an important role in determining individual dietary specialisation in H. ambrosii; contrarily, the characteristics of the surrounding environment seemed to be an important factor. The best body conditions were observed in the population located in the site where the non-arboreal vegetation cover was the highest. Besides providing new information on the trophic niche of H. ambrosii, we here showed that studies encompassing both intrinsic and extrinsic factors at the population level are needed to fully understand the trophic dynamics occurring among European cave salamanders.

Background: Eating habits form early during childhood and are likely to track until the beginning of adulthood. Thus, understanding the formation of eating habits is important. Consequently, the population targeted in the European project Habeat comprised infants and young children up to 6 years of age. Summary: Habeat mainly focused on the qualitative dimension of eating habits with a particular attention on vegetables and to a lesser extent on fruit. Food intake of young children was also studied in 2 challenging situations where overeating may occur and the relation between children's behaviour and feeding parental practices was examined. Key Messages: Habeat found evidence that breastfeeding may facilitate the consumption of vegetables and fruit and a greater variety of healthy foods in later childhood. Introduction of a variety of vegetables at the beginning of the complementary feeding period increases later acceptance of novel foods. Repeated exposure is a powerful mechanism to increase children's intake of a novel vegetable in infants and young children. Offering energy-dense snacks before or after meals should be avoided. Moreover, food should be offered to children in response to their feelings of hunger, and not used as reward for a good behaviour or for any other reason.

Abstract Behavioural dominance and aggressiveness may be crucial traits facilitating the establishment of invasive species. Few studies considered agonistic interactions between exotic and native bird species in feeding contexts, particularly when the exotic has social habits. We aimed to know if individuals of a social invasive species, the red-billed leiothrix Leiothrix lutea, are: more aggressive; the initiators of the first interaction; and dominant (i.e., won most interactions) over native opponents in a feeding context. We performed an experiment in a closed environment forcing dyadic interactions between an individual of a native species facing a leiothrix individual. We found that the leiothrix was the initiator in most experiments, being apparently dominant over natives. However, the invader was not more aggressive than natives. This can increase the risk of injury for natives because the leiothrix has a relatively larger body size. We discuss possible negative impacts of the leiothrix on native species.

AbstractThe feeding habits of nymphs of Perla marginata (Panzer) and Dinocras cephalotes (Curtis) were investigated in the Rio Orbarina (northwestern Italy). These species are among the largest European carnivorous freshwater invertebrates and they play an important role in the trophic structure of small, fishless Apennine streams. We examined the gut contents of 60 P. marginata and 60 D. cephalotes nymphs to characterize the diets and evaluate possible feeding differences between the species. In both of these predaceous stoneflies, the diet included vegetable detritus, mainly in the smaller instars. Both species showed trophic preferences, since only a few taxa constituted most of the ingested prey items, independently of their availability in the substratum. Interestingly, there were no clear differences in prey selection between nymphs of the two species.

Recent studies suggest that stable hydrogen isotope ratios (δD) of fish can be used to track their watershed origin and the relative contributions of source material. Both applications assume that there is no metabolic or trophic effect on tissue δD. We studied the local variation of δD values in four fish species of contrasting size and feeding habits in an isotopically homogenous reservoir (Flix, Spain). Other isotopic values (δ15N, δ13C) and trace metal content were measured as indicators of trophic and bioaccumulation patterns. In addition, isotopic values (δD, δ15N, δ13C) of other food web components were measured for comparison. Muscle δD values differed greatly among fish species: European catfish, Silurus glanis (–131‰); common carp, Cyprinus carpio (–141‰); rudd, Scardinius erythrophthalmus (–158‰); and roach, Rutilus rutilus (–163‰). The influence of fish size and trophic position affected the fish δD values. Possible mechanisms that drive δD variation among fish might be a metabolic effect and (or) the compounding effect of ambient water δD on exchangeable H at each trophic stage. Our findings showed that size and feeding habits are factors that should be controlled when tracing origins of fish or their dependence on nutrient inputs using δD measurements.

The stomach contents of 1096 specimens of Chelidonichthys lucerna were examined in order to analyse their diet composition according to fish size, sex, depth and season. Sampling was carried out from May 2005 to March 2007 during several bottom trawl surveys in the Adriatic Sea (north-east Mediterranean). Feeding activity was more intense in juveniles than in adults. The most important prey was Crustacea (mainly Decapoda: Brachyura, such as Goneplax rhomboides, Liocarcinus spp., Philocheras spp.) and Teleostei (mainly European anchovy Engraulis encrasicolus and black goby Gobius niger). There was no difference between male and female diet. Feeding habits varied with size, with fish dominating the stomach contents of larger specimens. Finally, fish increased in winter and crustaceans in summer. Chelidonichthys lucerna shows a generalist and opportunistic foraging behaviour, preying mainly epibenthic and nectobenthic organisms.

The introduction of allochthonous species often represents a serious problem for ecosystems and native species. Usually, these cases involve common widespread species that show high adaptability and strong competitiveness against local species. Within amphibians, the introduction of allochthonous species mainly deals with anurans, while cases involving caudata are few and poorly studied. We report the first assessment of an introduced population of European plethodontid salamanders. This population is located in the French Pyrenees and represents the oldest allochthonous Hydromantes population. We reconstructed the history of its introduction and collected data on the ecology and feeding habits of this population. Our results show that this population is stable and reproductive, showing strong similarities to Italian mainland species of Hydromantes. This study provided the base for further studies focused on this allochthonous population of European cave salamanders.

Problematic eating behaviours during early childhood could be mediators of poor dietary habits. This study aims to prospectively relate early eating behaviours with fruit and vegetable (F&V) intake and a healthy diet variety score of children aged between 4 and 5 years. Eating behaviours were assessed in three European birth cohorts (Generation XXI from Portugal, ALSPAC from the UK and EDEN from France) at 4–6, 12–15, 24 and 48–54 months of age, based on the child’s feeding difficulties, mother’s perception of child’s poor eating (eating small quantities at each meal, not eating enough or needing to be stimulated to eat), food refusal and difficulties in the establishment of daily food routines. Daily servings of F&V (>1 v. ≤1 serving/d, except in Generation XXI: >3 v. ≤3) and the Healthy Plate Variety Score (categorised by the median score of each sample) were calculated using FFQ. Associations were tested by logistic regressions adjusted for maternal age, education, smoking during pregnancy, any breast-feeding and the child’s z-score BMI at 4–5 years of age. Children with more feeding difficulties, poor eating, food refusal/neophobia and difficulties in establishing a daily routine at 12–15, 24 and 48–54 months of age had in general lower F&V intake at 4–5 years of age. The association with vegetables was slightly stronger than with fruits. These early feeding problems were also inversely associated with the variety score at 4–5 years of age, particularly when eating behaviours were reported after 12–15 months of age. A better understanding of these early feeding difficulties may help define strategies to increase the dietary quality in children.

Overwinter survival of hibernators is directly influenced by the fat reserves accumulated during the active season. The European ground squirrel, Spermophilus citellus, an endangered flagship species of the open grasslands of central and southeastern Europe, is no exception. Considering anthropogenic changes affecting its habitats in northern Serbia, we studied the species? feeding habits by subjecting its feces to microhistological examination. In addition to identifying plant remains in the feces, we examined the vegetation of the four study sites located inside a local mosaic of steppe and saline pastures. Our findings indicate that these remaining European ground-squirrel sites are diverse and stable grasslands covered by native flora that represents a complete dietary base for the species. The diet is dominated by a small number of plant species, specifically Achillea millefolium, legumes and grasses, with sporadic contributions from a number of other species. The diet of S. citellus also differs by location and season in that grasses dominate during the early season, while A. millefolium takes precedence later in the year. This dietary information is essential for the development of future species and habitat management strategies. In light of the predicted impact of climate change on grasslands in northern Serbia, our findings will be instrumental for translocations and conservation actions in the future.

West European hedgehogs (Erinaceus europaeus) are likely to encounter unusual ecological features in urban habitats, such as anthropogenic food sources and artificial refugia. Quantifying how these affect hedgehog behaviour is vital for informing conservation guidelines for householders. We monitored hedgehog presence/absence in gardens in the town of Reading, UK, over the winter of 2017–2018 using a volunteer-based footprint tunnel survey, and collected data on garden characteristics, supplementary feeding (SF) habits, and local environmental conditions. Over a 20-week survey period, hedgehog presence was lowest between January and March. Occupancy analysis indicated that SF significantly affected hedgehog presence/absence before, during, and after hibernation. The number of nesting opportunities available in gardens, average temperatures, and daylength were also supported as important factors at different stages. In particular, our results suggest that SF could act to increase levels of activity during the winter when hedgehogs should be hibernating. Stimulating increased activity at this sensitive time could push hedgehogs into a net energy deficit or, conversely, help some individuals survive which might not otherwise do so. Therefore, further research is necessary to determine whether patterns of feeding by householders have a positive or negative effect on hedgehog populations during the hibernation period.

The aim of our research was the examination of breast-milk composition from mothers living in the Csík region and to follow their milk composition variations during lactation. In this article we present the results obtained from three mothers, paying particular attention to essential components. The breast milk samples were collected from healthy mothers with similar habits and age. The milk samples were collected with a hand pump at thesame time after the feeding. The sampling period was from day 5 to the 14th weeks of lactation. The nutrition of mothers was recorded on a questionnaire, completed by the mothers themselves. Comparing our experimental results with data in the literature it was concluded that the milk protein content was very similar to the milk of mothers from other European countries, and is decreased during lactation.The total saturated fatty acid content was lower, but the palmitic acid content was slightly higher. Regarding the essential fatty acid composition the linoleic- and the arachidonic acid contents were appropriate from a nutritional point of view. The linolenic acid was present in lower amounts, but the docosahexanoic acid was almost undetectable.The iron and manganese contents were in good agreemen with published results, but the zinc content of the breast milk was lower and its copper content was higher. These differences in milk composition can be explained by the different nutritional habits of our subjects.

The Western European Hedgehog (Erinaceus europaeus) is one of the four hedgehog species belonging to the genus Erinaceus. Among them, E. amurensis is extant in East Asia’s areas only, whereas E. europaeus, E. roumanicus and E. concolor are mainly found in Europe. E. europaeus is endemically distributed from western to central and southern Europe, including Italy. Western European hedgehogs’ ecological and feeding habits, along with their high population densities, notable synanthropic attitudes, frequent contacts with sympatric wild and domestic species, including humans, implicate the possible involvement of E. europaeus in the ecology of potentially emerging viruses, such as coronaviruses, influenza A and influenza D viruses, canine distemper virus, pestiviruses and Aujeszky’s disease virus. We examined 24 E. europaeus individuals found injured in urban and rural areas of Northern Italy. Of the 24 fecal samples collected and tested for the above-mentioned pathogens by both PCR-based and virus isolation methods, 14 were found PCR-positive for betacoronaviruses belonging to lineage C and related to the known Erinaceus coronaviruses (EriCoVs), as determined by partial sequencing of the virus genome. Our findings suggest that hedgehogs could be considered natural reservoirs of CoVs, and also act as chronic shedding carriers of these potentially emerging RNA viruses.

Tetrodotoxin (TTX) is a potent alkaloid typically from tropical ecosystems, but in the last decade its presence has been more pronounced in the temperate waters of the Atlantic. In its last scientific opinion, the European Food Safety Authority (EFSA) stressed the need for data regarding TTX prevalence in European waters. To address EFSA’s concerns, benthic organisms such as mollusks, crustaceans, echinoderms and fish with different feeding habits were collected along the Portuguese continental coast, islands (São Miguel, Azores, and Madeira) and the northwestern Moroccan coast. A total of 165 samples were analyzed by ultra high performance liquid chromatography high resolution mass spectrometry (UHPLC-HRMS) and ultra high performance chromatography mass spectrometry (UHPLC-MS/MS). Geographical tendencies were detected as follows, by descending order: S. Miguel Island (Azores), Moroccan coast, Madeira Island and Portuguese continental coast. The toxin amounts detected were significant, above the Dutch limit value established in 2017, showing the importance and the need for continuity of these studies to gain more knowledge about the prevalence of these toxins, unraveling new vectors, in order to better assess human health risk. This work represents a general overview of new TTX bearers (7) most of them in gastropods (Patella depressa, Nucella lapillus, Onchidella celtica and Aplysia depilans), followed by echinoderms (Echinus esculentus and Ophidiaster ophidianus) and puffer fish Sphoeroides marmoratus.

The north-east Atlantic grey seal, Halichoerus grypus, is widely distributed along the European coastline from northern Russia to France, with the core population centred around Scotland. To date, very little is known of the diet of the species at the southern margin of the species range. However, because grey seal numbers have been increasing over the last few decades in France, the issue of their potential interactions with coastal fisheries is frequently raised. The diet of grey seal in the Molène Archipelago was investigated by combining scat, stomach content and fatty acid analyses, since all three approaches have complementary potentials to reveal feeding habits of a predator. A total of 145 scats mostly of moulting adult males, 14 stomach contents of yearlings and 14 blubber samples from animals of all ages were analysed following standard methodologies. Scats revealed a diet mainly constituted of 50.6% by mass (M) of wrasse, Labridae (mostly Labrus bergylta), 20.7%M conger eel, Conger conger, and 11.9%M sea bass, Dicentrarchus labrax. Stomach contents were made up of 52.3%M cuttlefish, Sepia officinalis, 9.5%M sole, Solea solea, and 9.4 %M conger eel. All these prey are different from the diet observed in core areas. Fatty acid analysis from the blubber confirmed that the diet differed between the Molène Archipelago and one of the Scottish breeding sites. It also showed that most of the inter-individual variability was explained by variation in seal body masses, which could be linked to behavioural ontogeny of foraging strategies. Most of the prey species identified in the food of the grey seal in Brittany are also targeted by professional and/or recreational fisheries in the area; additionally, several prey size-ranges also partly overlap with marketed size-ranges for several species.

The smaller European elm bark beetle, Scolytus multistriatus, has been the primary vector of the Dutch elm disease fungus, Ophiostoma novo-ulmi, in elm trees in Colorado since 1948. An exotic from Asia, the banded elm bark beetle, Scolytus schevyrewi, was found in Siberian elm, Ulmus pumila, in Colorado in April of 2003; this was the first report of S. schevyrewi in North America. S. schevyrewi is now found throughout much of Colorado and in at least 21 other states. The similarities in breeding and feeding habits between S. schevyrewi and S. multistriatus have raised concerns about the ability of S. schevyrewi to serve as a vector for O. novo-ulmi. The objective of this preliminary study was to determine if O. novo-ulmi could be isolated from adult S. schevyrewi emerging from diseased elm trees. S. schevyrewi and S. multistriatus were allowed to infest diseased stem segments of American elm, Ulmus americana. The infested stem segments were caged and isolations were made from the adult brood that emerged. O. novo-ulmi was isolated from most of the adults of both beetle species, showing that S. schevyrewi could acquire the pathogen as effectively as S. multistriatus. Future studies are needed to determine if S. schevyrewi can effectively transmit the pathogen to healthy trees.

Abstract Recent European environmental policies argue for the development of indicators of the ecological status of ecosystems that are easy to implement and powerful enough to detect changes quickly. For instance, some indicators that are currently proposed for monitoring foodweb structure and functioning are based on the size of organisms, using size as a proxy for trophic level. However, these indicators do not necessarily accurately reflect the underlying trophic structure and dynamics to follow. Ecological tracers (i.e. chemical parameters measured in consumer tissues to infer the trophic ecology of organisms) may serve as complementary indicators of trophic level, and may also help distinguish different populations of a species when more commonly used methods (e.g. genetic, age determination) present their own limitations. Here, we analysed the potential of muscle δ13C and δ15N values and of muscle mercury (Hg) concentrations to depict size-related trophic habits of different fish species. We expected that intra- and interspecific variation in these ecological tracers could be helpful in refining currently proposed indicators of marine ecosystems, and also help in discriminating management unitsfor some species. Four fish species were selected for their economical and/or ecological importance in the Bay of Biscay (Northeast Atlantic): whiting Merlangius merlangus, European hake Merluccius merluccius, Atlantic horse mackerel Trachurus trachurus and anglerfish Lophius piscatorius. Muscle δ13C and δ15N values segregated the species and enabled us to discriminate species-specific feeding strategies with increasing size of individuals. Fish body size was not always linearly correlated with δ15N or trophic level. In contrast, Hg concentrations and size-related Hg patterns were more similar from species to species. Interestingly, muscle δ15N values together with Hg concentrations segregated the two putative stocks of European hake within the Bay of Biscay. Hence, we propose the combined use of ecological tracers as a promising method for accurately assigning a consumer to a trophic guild, investigating Hg trophodynamics in foodwebs, and helping discriminate distinct ecological populations within a species when defining management units.

IntroductionPolybrominated Diphenyl Ethers (PBDEs) are non-biodegradable flame retardants, accumulated in biological systems and acting as endocrine disruptors. Breast feeding is a major route of exposure in infancy. Taken together with the critical development of this age and the potential adverse effects of PBDEs, it is important to monitor these contaminants in breastmilk.ObjectiveTo evaluate the exposure of infants to PBDEsMethods343 families were recruited during 2013–2016 in Assaf Harofeh and Ichilov to create the AHI-EHF cohort. Maternal blood and urine, cord blood, breast milk and meconium were collected. Participants filled out questionnaires about socio-demographic status, medical history, exposures and life habits. Colostrum samples were collected from women at the maternity department. PBDEs in colostrum and Infant formulas levels were analyzed using GC-MSResults and discussionOut of 183 serum samples, only 11(6%) detectable levels of PBDEs. PBDEs were found in all colostrum samples. The average concentration of total PBDEs in breastmilk was 714ng/L. PBDEs levels were also measured in three infant formulas. Unlike breastmilk, infant formulas had of only 3 congeners and levels were relatively low. The average concentration of total PBDEs in infant formulas was 153ng/L. PBDEs, were found to be negatively correlated to anno-penile index (API) which serve as a marker for endocrine disruption.ConclusionsPBDEs levels in breast milk are higher than levels in some European countries, but lower than in North America. PBDEs might have negative influence on AGD in boys. Maternal exposure to PBDEs and the significance of it should be further investigated.Disclosure(s)Nothing to disclose

Hungarian dairy sector went through significant changes in past two decades. The most significant changes were caused by our accession to the European Union. In Hungary milk production remarkably declined after EU accession. The size of our dairy herd has been practically reducing since the political transformation, but increasing yields per cow could compensate it in some way and for some time. However, in recent years, increasing yield per cow came to a stop and in parallel, the number of cows declined further and faster. Low prices, high production costs and tightening quality requirements ousted several producers from the market in past years. Feeding cost represents the highest rate in cost structure of production, but animal health expenditures and various losses are also significant. There are undeniably competitive disadvantages in the level of organisation and labour productivity; however competitiveness already depends on cost effectiveness in the medium run. In Hungary concentration of the dairies is relatively strong in spite of the relative high number of corporations. The dairies compete with each other and with the export market for the raw material and the better exploitation of their capacities. Applied technology of the Hungarian dairies lags behind the Western-European competitors’; in addition they have handicaps in efficiency and product innovation. Presence of chain of stores being dominant in sale of milk products does also not favour in all respects to the position of the dairies. The aforementioned retail chains are namely consumer-centric, engage in price follower conduct and weaken the position of the dairies with their private label products. As a result of increasing import of milk and milk products Hungary became a net importer in recent years. Today, disposable income still essentially determines the consumption habits of price-sensitive consumers. Loyalty for Hungarian products is not typical, consumers are open for import products being preferred by retail chains. In addition Hungarian milk and milk product consumption is about half of the Union average and it is far behind the level being necessary for healthy eating. In Hungary lack of competitiveness and vertical integration relationships and backwardness are revealing among the dairy farmers and the dairies, while chain of stores are in unprecedented “monopolistic situation”; the whole sector can be characterised by defencelessness.

AimTo eliminate the prescribing of codeine and codeine combination products postpartum to improve safety in breast fed infants.Concerns have been raised over the use of codeine and codeine combination products during breast feeding after the death of a neonate whose mother had been prescribed codeine postpartum. High concentrations of morphine were found in the infant's blood and this was attributed to the mother being a CYP2D6 ultrafast metaboliser.1 MethodsThe evidence surrounding the safety of codeine and codeine combination products in children, during the postpartum period and specifically for breast fed infants was collated. The evidence was presented to key stakeholders including obstetricians, midwives, safety and quality representatives, nurse unit managers and acute pain team representatives. Postpartum analgesia was discussed and an agreed protocol developed. Training and education sessions were undertaken to obstetric medical and nursing staff.ResultsThe evidence that was presented to key stakeholders included:▸ Reports over the safety concerns surrounding the use of codeine and codeine combination products during breast feeding▸ Guidelines and contraindications about the use of codeine in children that had been issued by international regulatory bodies (US Food and Drug Administration and European Medicines Agency).▸ Recommendations from the Australian Medicines Handbook to avoid in breast feeding2 ▸ Recommendations from Hale's Medications and Mothers Milk that reported limited data and had made a recent re-classification from L3 (limited data–probably compatible) to L4 (limited data–possibly hazardous).3 Before presenting the evidence to key stakeholders and undertaking training to nursing and medical staff, more than 90% of postpartum women were prescribed a codeine containing product as part of their ‘as required’ analgesic regimen.Since the intervention, codeine combination products have now been almost completely eliminated on medication charts for postpartum women (less than 5%). Those that are prescribed are ceased once highlighted to medical staff. The obstetric pharmacist now presents a session on postpartum analgesia at every new resident medical officer orientation outlining suitable medications to prescribe. In addition all new pharmacists to the women's and new born's team receive training about postpartum analgesia.ConclusionThis study highlights the impact that can be achieved when health care professionals work together to change the culture and prescribing habits in a hospital setting, to enhance patient safety. Evaluating the evidence and presenting to stakeholders as well as providing ongoing training and education to medical, nursing and pharmacy staff are all essential to a successful outcome.

Abstract: Introduction: Recent research findings support the assumption that the development of chronic diseases in adults is greatly influenced by the supply of nutrients in the uterus and the nutrition, nourishment of the early, toddler ages. Aim: The aim of the present study was to evaluate the nutritional habits of infants and toddlers aged 0–3 in Hungary, and to identify the most typical problems of their nutrition, to get to know and provide the necessary data for the modification and modernization of feeding/nutrition recommendations for infants and young children in Hungary. Method: The study was carried out with the professional coordination of the Hungarian Dietetic Association (MDOSZ) in the framework of industry research between June and August 2015, in the 0–3-year-old population, in the cities Budapest, Debrecen, Győr, Szeged and Pécs. The survey was conducted with anthropometric measurements and validated by three-day dietary log templates. Results: 18.6% of infants aged 4 to 12 months (n = 220) had values below 10th percentile, 10% were between 85–97th percentiles and 3% were above 97th percentile. 15% of children aged 12–24 months (n = 227) had a body mass index (BMI) below 10th percentile (underweight), 14% were between 85–97th percentile (overweight) and 2.6% had BMI over the 97th percentile (obese). 70% of 25–36-month-old children (n = 184) had normal BMI, 4% were overweight, 2% obese, 24% underweight. Based on the Hungarian reference value, 10.9% of the 4–12-month-old children, 20% of the 1–2-year-olds, 47% of the 2–3-year-olds were in high protein intake group. However, compared to the 2013’s reference values of the EFSA (European Food Safety Authority) recommendation, 100% of the children belong to the high protein intake group in all age groups. Conclusion: Although the EFSA recommendation – based on the WHO/FAO/UNU macro- and micronutrient intake values in 2007 – defines the recommended intake quantities, the results in the sample did not support its overall reliability. Orv Hetil. 2019; 160(50): 1990–1998.

Abstract In the period between the years 1976 to 2016 we monitored the nesting site distribution of two populations of saker falcon (Falco cherrug) concentrated in the highlands and adjacent lowlands of western and eastern Slovakia. In western Slovakia we recorded nesting by 56 pairs and 514 nestings, and in eastern Slovakia we observed nesting by 32 pairs and 245 nestings. There were similar nesting success rates in both regions, with pairs producing on average 3.2 young in every successful nest. During the monitored period as a whole a total of 1,788 young saker falcons were raised. At the same time all the pairs gradually resettled in the lowlands, and in the new environment the nesting success rate significantly improved (81.1% compared with 57.1 % in the highlands). This change of nesting biotopes was caused by the impacts of intensive exploitation and environmentally inappropriate forest management, with the accompanying excessive disturbance of nesting birds, but at the same time the disappearance of ground squirrel (Spermophilus citellus) colonies led to a change in the food spectrum for the observed saker falcon pairs. We evaluated the falcons’ feeding habits in western Slovakia between the years 1977 and 2016 (49 pairs; 1–17 pairs/year) and in eastern Slovakia between 2009 and 2016 (12 pairs; 1–3 pairs/year). Altogether 17,669 prey items were identified. From 1976 onwards mammals (Mammalia, 19.8%, 24 species) became gradually less represented as a component in the falcons’ diet compared with birds (Aves, 79.9%, 58 species). In areas of western Slovakia we found stable and predominant proportions of domestic pigeons (Columba livia f. domestica) ranging from 52% to 62%. The proportion of pigeons was distinctly lower in eastern Slovakia (31.5%), compensated for by larger shares of common vole (Microtus arvalis), common starling (Sturnus vulgaris), Eurasian magpie (Pica pica) and hooded crow (Corvus cornix). The common starling (9.5%) was a significant prey species in the lowlands of western and eastern Slovakia alike. Mammals were mostly represented by common voles (9.8%), European hamsters (Cricetus cricetus, 5.3%), ground squirrels (2.1%) and hares (Lepus europaeus, 1.6%). Changes over time in the composition of falcons’ prey were also evaluated over five periods in western Slovakia.

Corvids in Zhytomyr city reach maximum density in the winter period. Rooks and Eurasian Jackdaws were the most abundant species in winter, usually feeding in multispecies flocks and forming collective roosts.Suburban green areas (buffer zones) were characterized by a considerably high diversity of Corvidae species: this habitat was occupied by all six species. We also registered the highest density of Eurasian Jays and Hooded Crows in this habitat. The green areas in the city center were also characterized by significant corvid density, especially during the breeding season. The maximum breeding density of Rooks was in these habitats, which held 6 of 12 identified urban colonies in Zhytomyr. We found that the European Magpies, Eurasian Jays, and Hooded Crows also had high breeding success here. Eurasian Jackdaws occurred here only in autumn and winter, when they fed together with Rooks on lawns, gardens, and parks. With stable snow cover the Rook density in habitats of the green areas decreased due to the depletion of food resources.The individual buildings zone of the city were characterized by the lowest density of all corvid species, except for European Magpies and Eurasian Jays. The number of common species (Rooks, Eurasian Jackdaws, and Hooded Crows) was low because of shortage of food resources, lack of sites for large roosting flocks and shortage of suitable nesting sites. However, Eurasian Magpies reached one of their highest densities in this habitat (12.8 birds/km2). This species was registered in habitats around private buildings all the year round, successfully nesting in the yards of private houses and on trees in the streets. Its breeding density was 11.2 birds/km2.During three years of research (2009–2012) the density of all corvids except for European Magpie, practically did not change, although we determined a slight positive trend for all the species. The strong increase in the number of Eurasian Jackdaws could be explained by the increasing density of wintering populations or due to the increasing number of migrants from more northern regions.

Improving the knowledge on the biology, ecology and distribution of marine resources exploited by fisheries is necessary to achieve population recovery and sustainable fisheries management. European hake (Merluccius merluccius) is one of the most important target species in the Mediterranean Sea and is largely overexploited by industrial fisheries. Here, we used two methodological approaches to further investigate the seasonal variation in the spatial distribution of European hake considering ontogenetic changes and trophic ecology in the western Mediterranean Sea. Our main aim was to explore if spatial changes in hake distribution were related to trophic behavior, in addition to key environmental factors. We employed a hierarchical Bayesian species distribution modeling approach (B-SDM), using spatial data from two oceanographic surveys conducted during winter and summer. We analyzed how the environmental variables, together with abundance and mean weight distribution of the main preys identified for European hake, affected the seasonal distribution of the species. Results revealed clear differences in the distribution of the European hake between seasons, which were indeed partially correlated to the distribution of their main preys, in addition to the environment. Stable isotope values and Bayesian isotopic mixing models (MixSIAR) revealed substantial seasonal and ontogenetic differences in trophic habits of European hake, partly matching the spatial distribution results. These findings could have implications for a future seasonal-based adaptive fisheries management, as local depletion of prey, or variation in size and condition may affect European hake presence in this area. Moreover, this study illustrates how the sequential application of methodologies provides a more holistic understanding of species seasonality, which is essential to understand the phenological processes of exploited species and their potential shifts due to environmental changes.

Abstract Comparisons of mammalian gut microbiota across different environmental conditions shed light on the diversity and composition of gut bacteriome and suggest consequences for human and animal health. Gut bacteriome comparisons across different environments diverge in their results, showing no generalizable patterns linking habitat and dietary degradation with bacterial diversity. The challenge in drawing general conclusions from such studies lies in the broad terms describing diverse habitats (“wild”, “captive”, “pristine”). We conducted 16S ribosomal RNA gene sequencing to characterize intestinal microbiota of free-ranging sympatric chimpanzees and gorillas in southeastern Cameroon and sympatric chimpanzees and gorillas in a European zoo. We conducted participant-observation and semi-structured interviews among people living near these great apes to understand better their feeding habits and habitats. Unexpectedly, bacterial diversity (ASV, Faith PD and Shannon) was higher among zoo gorillas than among those in the Cameroonian forest, but zoo and Cameroonian chimpanzees showed no difference. Phylogeny was a strong driver of species-specific microbial composition. Surprisingly, zoo gorilla microbiota more closely resembled that of zoo chimpanzees than of Cameroonian gorillas. Zoo living conditions and dietary similarities may explain these results. We encourage multidisciplinary approach integrating environmental sampling and anthropological evaluation to characterize better diverse environmental conditions of such investigations.

AbstractThe aim of this review is to summarize the literature knowledge about how abiotic environmental factors and biotic interactions affect the sequentially overlapping longitudinal distribution of Central European species of the net-spinning freshwater caddisfly larvae of the genus Hydropsyche (Trichoptera: Hydropsychidae). In this relation, several physical and chemical parameters of water are discussed, as well as different species-specific traits, behavioural aspects and the interaction of coexisting species. Longitudinal gradients of river networks, especially annual temperature range, flow velocity and the particle size of suspended food material play a crucial role in forming the downstream succession of characteristic species, while increased levels of organic pollution, nutrients, salinity and heavy metals facilitates the presence of more tolerant ones. Several species-specific traits, such as respiration range, net-building frequency, head capsule size or optimal net-building velocity correlate with the position of a given species in the sequence. Coexistence of species with similar ecological demands in the overlapping zones of distribution is facilitated by differences in feeding and net-building habits, microhabitat preferences and staggering life cycles, but complicated at the same time by means of inter- and intraspecific territorial behaviour, such as fighting for the ownership of larval retreats or the practice of stridulation.

Abstract Background Salmonella enterica subsp. enterica is a public health issue related to food safety, and its adaptation to animal sources remains poorly described at the pangenome scale. Firstly, serovars presenting potential mono- and multi-animal sources were selected from a curated and synthetized subset of Enterobase. The corresponding sequencing reads were downloaded from the European Nucleotide Archive (ENA) providing a balanced dataset of 440 Salmonella genomes in terms of serovars and sources (i). Secondly, the coregenome variants and accessory genes were detected (ii). Thirdly, single nucleotide polymorphisms and small insertions/deletions from the coregenome, as well as the accessory genes were associated to animal sources based on a microbial Genome Wide Association Study (GWAS) integrating an advanced correction of the population structure (iii). Lastly, a Gene Ontology Enrichment Analysis (GOEA) was applied to emphasize metabolic pathways mainly impacted by the pangenomic mutations associated to animal sources (iv). Results Based on a genome dataset including Salmonella serovars from mono- and multi-animal sources (i), 19,130 accessory genes and 178,351 coregenome variants were identified (ii). Among these pangenomic mutations, 52 genomic signatures (iii) and 9 over-enriched metabolic signatures (iv) were associated to avian, bovine, swine and fish sources by GWAS and GOEA, respectively. Conclusions Our results suggest that the genetic and metabolic determinants of Salmonella adaptation to animal sources may have been driven by the natural feeding environment of the animal, distinct livestock diets modified by human, environmental stimuli, physiological properties of the animal itself, and work habits for health protection of livestock.

I have only ever owned one pig. It didn’t have a name, due as it was for the table. Just pu‘aka. But I liked feeding it; nothing from the household was wasted. I planned not to become attached. We were having a feast and a pig was the one essential requirement. The piglet came to us as a small creature with a curly tail. It would not even live an adult life, as the fully-grown local pig is a fatty beast with little meat. Pigs are mostly killed when partly grown, when the meat/fat ratio is at its optimum. The pig was one of the few animals to accompany Polynesians as they made the slow journey across the islands and oceans from Asia: pigs and chickens and dogs. The DNA of island pigs reveals details about the route taken that were previously hidden (Larsen et al.). Of these three animals, pigs assumed the most ceremonial importance. In Tonga, pigs often live an exalted life. They roam freely, finding food where they can. They wallow. Wherever there is a pool of mud, often alongside a road, there is a pig wallowing. Huge beasts emerge from their pools with dark mud lining their bellies as they waddle off, teats swinging, to another pleasure. Pig snouts are extraordinarily strong; with the strength of a pig behind them, they can dig holes, uproot crops, and generally wreak havoc. How many times have I chased them from my garden, despairing at the loss of precious vegetables I could get no other way? But they must forage. They are fed scraps, and coconut for protein, but often must fend for themselves. Despite the fact that many meet an early death, their lives seem so much more interesting than those lived by the anonymous residents of intensive piggeries in Australia, my homeland. When the time came for the pig to be sacrificed to the demands of the feast, two young Tongan men did the honours. They also cooked the pig on an open fire after skewering it on a pole. Their reward was the roasted sweetmeats. The ‘umu was filled with taro and cassava, yam and sweet potato, along with lū pulu and lū ika: tinned beef and fish cooked in taro leaves and coconut cream. In the first sitting, all those of high status—church ministers, college teachers, important villagers and pālangi like me—had the first pick of the food. Students from the college and lowly locals had the second. The few young men who remained knew it was their task to finish off all of the food. They set about this activity with intense dedication, paying particular attention to the carcass of the pig. By the end of the night, what was left of our little pig was a pile of bones, the skeleton taken apart at every joint. Not a scrap of anything edible remained. In the early 1980s, I went to live on a small island in the Kingdom of Tonga, where my partner was the Principal of an agricultural college, in the main training young men for working small hereditary mixed farms. Memories of that time and a recent visit inform this reflection on the contemporary Tongan diet and problems associated with it. The role of food in a culture is never a neutral issue. Neither is body size, and Tongans have traditionally favoured the large body as an indication of status (Pollock 58). Similarly the capacity to eat has been seen as positive. Many Tongans are larger than is healthy, with 84% of men and 93% of women “considered overweight or obese” (Kirk et al. 36). The rate of diabetes, 80% of it undiagnosed, has doubled since the 1970s to 15% of the adult population (Colagiuri et al. 1378). In the Tongan diaspora there are also high rates of so-called “metabolic syndrome,” leading to this tendency to diabetes and cardiovascular disease. In Auckland, for instance, Pacific Islanders are 2.5 times more likely to suffer from this condition (Gentles et al.). Its chief cause is not, however, genetic, but comes from “differences in obesity,” leading to a much higher incidence of cardiovascular disease and diabetes (Gentles et al.). Deaths from diabetes in Tonga are common. When a minister’s wife in the neighbouring village to mine died, everyone of status on the island attended the putu. Though her gangrenous foot could have been amputated, the family decided against this, and she soon died from the complications of her diabetes. On arrival at the putu, as well as offering gifts such as mats and tapa, participants lined up to pay very personal respects to the dead woman. This took the form of a kiss on her face. I had never touched a dead person before, let alone someone who had died of gangrene, but life in another culture requires many firsts. I bent down and kissed the dry, cold face of a woman who had suffered much before dying. Young men of the family pushed sand over the grave with their own hands as the rest of us stood around, waiting for the funeral food: pigs, yes, but also sweets made from flour and refined sugar. Diet and eating practices are informed by culture, but so are understandings of illness and its management. In a study conducted in New Zealand, sharp differences were seen between the Tongan diaspora and European patients with diabetes. Tongans were more likely “to perceive their diabetes as acute and cyclical in nature, uncontrollable, and caused by factors such as God’s will, pollution in the environment, and poor medical care in the past”, and this was associated “with poorer adherence to diet and medication taking” (Barnes et al. 1). This suggests that as well as being more likely to suffer from illnesses associated with diet and body size, Tongans may also be less likely to manage them, causing these diseases to be even more debilitating. When James Cook visited the Tongan group and naively named them the Friendly Islands, he was given the customary hospitality shown to one of obviously high status. He and his officers were fed regularly by their hosts, even though this must have put enormous pressure on the local food systems, in which later supply was often guaranteed by the imposition of tapu in order to preserve crops and animals. Further pressure was added by exchanges of hogs for nails (Beaglehole). Of course, while they were feeding him royally and entertaining his crew with wrestling matches and dances, the local chiefs of Ha‘apai were arguing about exactly when they were going to kill him. If it were by night, it would be hard to take the two ships. By day, it might be too obvious. They never could agree, and so he sailed off to meet his fate elsewhere (Martin 279-80). As a visitor of status, he was regularly fed pork, unlike most of the locals. Even now, in contemporary Tonga, pigs are killed to mark a special event, and are not eaten as everyday food by most people. That is one of the few things about the Tongan diet that has not changed since the Cook visits. Pigs are usually eaten on formal feasting occasions, such as after church on the Sabbath (which is rigorously kept by law), at weddings, funerals, state occasions or church conferences. During such conferences, village congregations compete with each other to provide the most lavish spreads, with feasting occurring three times a day for a week or more. Though each pola is spread with a range of local root crops, fish and seafood, and possibly beef or even horse, the pola is not complete unless there is at least one pig on it. Pigs are not commercially farmed in Tonga, so these pigs have been hand- and self-raised in and around villages, and are in short supply after these events. And, although feasts are a visible sign of tradition, they are the exception. Tongans are not suffering from metabolic syndrome because they consume too much pork; they are suffering because in everyday life traditional foods have been supplanted by imports. While a range of traditional foods is still eaten, they are not always the first choice. Some imported foods have become delicacies. Mutton flap is a case in point. Known as sipi (sheep), it is mostly fat and bone, and even when barbequed it retains most of its fat. It is even found on outer islands without refrigeration, because it can be transported frozen and eaten when it arrives, thawed. I remember once the local shopkeeper said she had something I might like. A leg of lamb was produced from under the counter, mistakenly packed in the flap box. The cut was so unfamiliar that nobody else had much use for it. The question of why it is possible to get sipi in Tonga and very difficult to get any other kind of fresh meat other than one’s own pigs or chickens raises the question of how Tonga’s big neighbours think of Pacific islands. Such islands are the recipients of Australian and New Zealand aid; they are also the recipients of their waste. It’s not uncommon to find out of date medications, banned agricultural chemicals, and food that is really unsuitable for human consumption. Often the only fresh and affordable meat is turkey tails, chicken backs, and mutton flap. From July 2006 to July 2007, New Zealand exported $73 million worth of sheep off-cuts to the Pacific (Edwardes & Frizelle). Australia and the US account for the supply of turkey tails. Not only are these products some of the few fresh meat sources available, they are also relatively inexpensive (Rosen et al.). These foods are so detrimental to the health of locals that importing them has been banned in Fiji and independent Samoa (Edwardes & Frizelle). The big nations around the Pacific have found a market for the meat by-products their own citizens will not eat. Local food sources have also been supplanted as a result of the high value placed on other foods, like rice, flour and sugar, which from the nineteenth century became associated with “civilisation and progress” (Pollock 233). To counter this, education programs have been undertaken in Tonga and elsewhere in the Pacific in order to promote traditional local foods. These have also sought to address the impact of high food imports on the trade balance (Pollock 232). Food choices are not just determined by preference, but also by cost and availability. Similarly, the Tonga Healthy Weight Loss Program ran during the late 1990s, but it was found that a lack of “availability of healthy low-cost food was a problem” to its success (Englberger et al. 147). In a recent study of Tongan food preferences, it was found that “in general, Tongans prefer healthier traditional, indigenously produced, foods”, but that they are not always available (Evans et al. 170). In the absence of a consistent supply of local protein sources, the often inferior but available imported sources become the default ingredient. Fish in particular are in short supply. Though many Tongans can still be seen harvesting the reef for seafood at low tide, there is no extensive fishing industry capable of providing for the population at large. Intensive farming of pigs has been considered—there was a model piggery on the college where I lived, complete with facilities for methane collection—but it has not been undertaken. Given the strongly ceremonial function of the pig, it would take a large shift in thinking for it to be considered an everyday food. The first cooked pig I encountered arrived at my house in a woven coconut leaf basket, surrounded by baked taro and yam. It was a small pig, given by a family too poor to hold the feast usually provided after church when it was their turn. Instead, they gave the food portion owed directly to the preacher. There’s a faded photo of me squatting on a cracked linoleum floor, examining the contents of the basket, and wondering what on earth I’m going to do with them. I soon learnt the first lesson of island life: food must be shared. With no refrigeration, no family of strapping youths, and no plans to eat the pig myself, it had to be given away to neighbours. It was that simple. Even watermelon went off within the day. In terms of eating, that small pig would have been better kept until a later day, when it reached optimum size, but each family’s obligation came around regularly, and had to be fulfilled. Feasting, and providing for feasting, was a duty, even a fatongia mamafa: a “heavy duty” among many duties, in which the pig was an object deeply “entangled” in all social relations (Thomas). A small pig was big enough to carry the weight of such obligations, even if it could not feed a crowd. Growing numbers of tourists to Tonga, often ignored benignly by their hosts, are keen to snap photos of grazing pigs. It is unusual enough for westerners to see pigs freely wandering, but what is more striking about some pigs on Tongatapu and ‘Eua is that they venture onto the reefs and mudflats at low tide, going after the rich marine pickings, just as their human counterparts do. The silhouette of a pig in the water as the tropical sun sinks behind, caught in a digital frame, it is a striking memory of a holiday in a place that remains largely uninterested in its tourist potential. While an influx of guests is seen by development consultants as the path to the nation’s economic future, Tongans bemusedly refuse to take this possibility seriously (Menzies). Despite a negative trade balance, partly caused by the importation of foreign food, Tonga survives on a combination of subsistence farming and remittances from Tongans living overseas; the tourist potential is largely unrealised. Dirk Spennemann’s work took a strange turn when, as an archaeologist working in Tonga, it became necessary for him to investigate whether these reef-grazing pigs were disturbing midden contents on Tongatapu. In order to establish this, he collected bags of both wet and dry “pig excreta” (107). Spenemann’s methodology involved soaking the contents of these bags for 48 hours, stirring them frequently; “they dissolved, producing considerable smell” (107). Spennemann concluded that pigs do appear to have been eating fish and shellfish, along with grass and “the occasional bit of paper” (107). They also feed on “seaweed and seagrass” (108). I wonder if these food groups have any noticeable impact on the taste of their flesh? Creatures fed particular diets in order to create a certain distinct taste are part of the culinary traditions of the world. The deli around the corner from where I live sells such gourmet items as part of its lunch fare: Saltbush lamb baguettes are one of their favourites. In the Orkneys, the rare and ancient North Ronaldsay Sheep are kept from inland foraging for most of the year by a high stone fence in order to conserve the grass for lambing time. This forces them to eat seaweed on the beach, producing a distinct marine taste, one that is highly valued in certain Parisian restaurants. As an economy largely cut out of the world economic loop, Tonga is unlikely to find select menus on which its reef pigs might appear. While living on ‘Eua, I regularly took a three hour ferry trip to Tongatapu in order to buy food I could not get on my home island. One of these items was wholemeal flour, from which I baked bread in a mud oven we had built outside. Bread was available on ‘Eua, but it was white, light and transported loose in the back of truck. I chose to make my own. The ferry trip usually involved a very rough crossing, though on calmer days, roof passengers would cook sipi on the diesel chimney, added flavour guaranteed. It usually only took about thirty minutes on the way out from Nafanua Harbour before the big waves struck. I could endure them for a while, but soon the waves, combined with a heavy smell of diesel, would have me heading for the rail. On one journey, I tried to hold off seasickness by focussing on an island off shore from Tongatapu. I went onto the front deck of the ferry and faced the full blast of the wind. With waves and wind, it was difficult to stand. I diligently stared at the island, which only occasionally disappeared beneath the swell, but I soon knew that this trip would be like the others; I’d be leaning over the rail as the ocean came up to meet me, not really caring if I went over. I could not bear to share the experience, so in many ways being alone on the foredeck was ideal for me, if I had to be on the boat at all. At least I thought I was alone, but I soon heard a grunt, and looked across to see an enormous sow, trotters tied front and back, lying across the opposite side of the boat. And like me, she too was succumbing to her nausea. Despite the almost complete self-absorption seasickness brings, we looked at each other. I may have imagined an acknowledgement, but I think not. While the status of pigs in Tongan life remains important, in many respects the imposition of European institutions and the availability of imported foods have had an enormous impact on the rest of the Tongan diet, with devastating effects on the health of Tongans. Instead of the customary two slow-cooked meals, one before noon and one in the evening (Pollock 56), consisting mostly of roots crops, plantains and breadfruit, with a relish of meat or fish, most Tongans eat three meals a day in order to fit in with school and work schedules. In current Tongan life, there is no time for an ‘umu every day; instead, quick and often cheaper imported foods are consumed, though local foods can also be cooked relatively quickly. While some still start the day by grabbing a piece of left over cassava, many more would sit down to the ubiquitous Pacific breakfast food: crackers, topped with a slab of butter. Food is a neo-colonial issue. If larger nations stopped dumping unwanted and nutritionally poor food products, health outcomes might improve. Similarly, the Tongan government could tip the food choice balance by actively supporting a local and traditional food supply in order to make it as cheap and accessible as the imported foods that are doing such harm to the health of Tongans References Barnes, Lucy, Rona Moss-Morris, and Mele Kaufusi. “Illness Beliefs and Adherence in Diabetes Mellitus: A Comparison between Tongan and European Patients.” The New Zealand Medical Journal 117.1188 (2004): 1-9. Beaglehole, J.C. Ed. The Journals of Captain James Cook on his Voyages of Discovery: The Voyage of the Resolution and Discovery 1776-1780. Parts I & II. Cambridge: Hakluyt Society, 1967. ­­­____. Ed. The Journals of Captain James Cook on his Voyages of Discovery: The Voyage of the Resolution and Adventure 1772-1775. Cambridge: Hakluyt Society, 1969. Colagiuri, Stephen, Ruth Colgaiuri, Siva Na‘ati, Soana Muimuiheata, Zafirul Hussein, and Taniela Palu. “The Prevalence of Diabetes in the Kingdom of Tonga.” Diabetes Care 28.2 (2002): 1378-83. Edwardes, Brennan, and Frank Frizelle. “Globalisation and its Impact on the South Pacific.” The New Zealand Medical Journal 122.1291 (2009). 4 Aug. 2010 Englberger, L., V. Halavatau, Y. Yasuda, & R, Yamazaki. “The Tonga Healthy Weight Loss Program.” Asia Pacific Journal of Clinical Nutrition 8.2 (1999): 142-48. Gentles, Dudley, et al. “Metabolic Syndrome Prevalence in a Multicultural Population in Auckland, New Zealand.” Journal of the New Zealand Medical Association 120.1248 (2007). 4 Aug. 2010 Kirk, Sara F.L., Andrew J. Cockbain, and James Beasley. “Obesity in Tonga: A cross-sectional comparative study of perceptions of body size and beliefs about obesity in lay people and nurses.” Obesity Research & Clinical Practice 2.1 (2008): 35-41. Larsen, Gregor, et al. “Phylogeny and Ancient DNA of Sus Provides New Insights into Neolithic Expansion in Island Southeast Asia and Oceania.” Proceedings of the National Academy of Sciences of the United States of America 104.12 (2007): 4834-39. Martin, John. Tonga Islands: William Mariner’s Account, 1817. Neiafu, Tonga: Vava‘u, 1981. Menzies, Isa. “Cultural Tourism and International Development in Tonga: Notes from the Field”. Unpublished paper. Oceanic Passages Conference. Hobart, June 2010. Pollock, Nancy J. These Roots Remain: Food Habits in Islands of the Central and Eastern Pacific since Western Contact. Honolulu: Institute for Polynesian Studies, 1992. Rosen, Rochelle K., Judith DePue, and Stephen T. McGarvey. “Overweight and Diabetes in American Samoa: The Cultural Translation of Research into Health Care Practice.” Medicine and Health/ Rhode Island 91.12 (2008): 372-78. Spennemann, Dirk H.R. “On the Diet of Pigs Foraging on the Mud Flats of Tongatapu: An Investigation in Taphonomy.” Archaeology in New Zealand 37.2 (1994): 104-10. Thomas, Nicholas. Entangled Objects: Exchange, Material Objects and Colonialism in the Pacific. Cambridge, Massachusetts: Harvard UP, 1991.