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Academic literature on the topic 'Egernia'

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Published: 4 June 2021
Last updated: 20 February 2023

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Journal articles on the topic "Egernia"

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While, Geoffrey M., David G. Chapple, Michael G. Gardner, Tobias Uller, and Martin J. Whiting. "Egernia lizards." Current Biology 25, no. 14 (July 2015): R593—R595. http://dx.doi.org/10.1016/j.cub.2015.02.070.

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Milton, DA. "Reproduction of 2 Closely Related Skinks, Egernia-Modesta and Egernia-Whitii (Lacertilia, Scincidae) in Southeast Queensland." Australian Journal of Zoology 35, no. 1 (1987): 35. http://dx.doi.org/10.1071/zo9870035.

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The reproductive cycles of two closely related skinks, Egernia modesta and E, whitii, in southern Queensland are described and compared in sympatric populations. They are very similar, both species produce 1-5 live young about 40 mm long in January-early February. Lizards mature at the end of their second year and litter size is positively related to female body length. Adults grow to 110 mm and appear to live at least 4 years. Two non-hybridising colour morphs of E. whitii were present in the study area and did not associate at random. Possible mechanisms explaining the evolution of these three closely related forms, which can coexist in similar habitats, are discussed.
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Milton, DA, and JM Hughes. "Habitat Selection by 2 Closely Related Skinks, Egernia-Modesta Storr and Egernia-Whitii Lacepede (Lacertilia, Scincidae)." Wildlife Research 13, no. 2 (1986): 295. http://dx.doi.org/10.1071/wr9860295.

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'The habitat and microhabitat preferences, and times of activity, of the skinks Egernia modesta and E. whitii were examined in southern Queensland where they coexist in a narrow zone. The above parameters were compared between locally sympatric and allopatric populations, in an attempt to determine whether there was evidence of niche separation in sympatry. E. modesta preferred open habitats with little canopy cover and high grass cover, adjacent to rocky retreats. E. whitii preferred rocky areas with well developed canopy and shrub layers. Both species were active throughout the day, although E. modesta was active later than E. whitii. No evidence was found of competition restricting habitat preferences where the two species coexisted. It is suggested that human disturbance has had some influence on current distributions of these species.
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Donnellan, Stephen C., Mark N. Hutchinson, Paula Dempsey, and William S. Osborne. "Systematics of the Egernia whitii species group (Lacertilia : Scincidae) in south-eastern Australia." Australian Journal of Zoology 50, no. 5 (2002): 439. http://dx.doi.org/10.1071/zo01065.

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Allozyme electrophoresis was used to assess the taxonomic significance of colour pattern variation within and between populations of the Egernia whitii species group from 41 locations in south-eastern Australia. Analysis of the products of 39 presumed loci revealed that a minimum of three species are present in southern New South Wales among populations previously referred to Egernia whitii. Fixed allelic differences were maintained where pairs of species were sympatric. One of these three species is wide-ranging and is the one to which the name E. whitii is properly applied. The other two are more restricted ecologically and geographically and are described here as new. The three species are genetically and morphologically distinct from the other three eastern Australian members of the species group, E.�margaretae, E. modesta, and E. multiscutata. Genetic data and a review of the morphological evidence provide no support for the recognition of subspecies within either E. whitii (sensu stricto) or E. multiscutata.
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Stow, A. J. "Microsatellite loci from the Cunningham's Skink (Egernia cunninghami)." Molecular Ecology Notes 2, no. 3 (September 2002): 256–57. http://dx.doi.org/10.1046/j.1471-8286.2002.00209.x.

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Baines, Holly. "Dominance and aggression in captive gidgee skinks (Egernia stokesii)." Herpetological Journal, Volume 30, Number 2 (April 1, 2019): 83–92. http://dx.doi.org/10.33256/hj30.2.8392.

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Dominance is a key component of behaviour in many animal species and is central to social system dynamics, resource acquisition, individual fitness and ultimately reproductive success. We investigated dominance interactions and social behaviours in a group of captive juvenile gidgee skinks (Egernia stokesii). We hypothesised that a dominance hierarchy existed within the group, and that aggressive behaviours would be used to secure limited resources, especially high-value resources. We also hypothesised that body weight would be positively correlated with dominance and aggressive behaviours. We filmed the lizards at 1200 hours for six days a week over the course of eight weeks. We exposed the lizards to three different diets, which consisted of an animal-based diet (crickets), plant-based diet (plants), and a non-feeding control (no food offered). The relative value of these resources to the skinks was established through preference tests. We identified a dominance hierarchy, with dominant individuals exhibiting more aggressive behaviours than subordinates. We found that the frequency of aggressive behaviours was significantly higher in trials where high-valued resources (crickets) were at stake. Furthermore, we found a significant positive correlation between body weight and dominance, bite and chase; larger individuals were ranked higher in the social hierarchy compared to smaller individuals. Our results demonstrate the importance of morphological and behavioural traits in determining a dominance hierarchy in E. stokesii and how dominance can have ecological advantages.
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O'Connor, David E., and Richard Shine. "Kin discrimination in the social lizard Egernia saxatilis (Scincidae)." Behavioral Ecology 17, no. 2 (December 22, 2005): 206–11. http://dx.doi.org/10.1093/beheco/arj019.

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Duffield, Glen, and Michael Bull. "Stable social aggregations in an Australian lizard, Egernia stokesii." Naturwissenschaften 89, no. 9 (September 1, 2002): 424–27. http://dx.doi.org/10.1007/s00114-002-0346-7.

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Bouffet-Halle, Alix, Weizhao Yang, Michael G. Gardner, Martin J. Whiting, Erik Wapstra, Tobias Uller, and Geoffrey M. While. "Characterisation and cross-amplification of sex-specific genetic markers in Australasian Egerniinae lizards and their implications for understanding the evolution of sex determination and social complexity." Australian Journal of Zoology 69, no. 2 (February 3, 2022): 33–40. http://dx.doi.org/10.1071/zo21023.

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Sex is a pervasive factor that underpins functional phenotypic variation across a range of traits. Although sex can usually be distinguished morphologically, in some species this is not possible. The development of genetic markers for sex identification is, thus, key if we are to incorporate sex into an understanding of ecological or evolutionary process. Here we develop genetic markers for the identification of sex within an iconic Australian lizard group, the Egernia group, which is notable for its complex social behaviour. We used restriction-site associated DNA sequencing to characterise sex-specific genetic sequences for a key member of the group, Liopholis whitii, and designed primers for four of these putative sex-specific sequences. These primers amplified across some, but not all, species of the group. Our results provided several important insights. They suggest conservatism of a XX/XY sex determination system within the group as well as sex-specific genomic regions that appear independent of the conserved genomic regions identified in other skink species. More broadly, the development of sex markers for the Egernia group opens up a range of potential research questions related to the role that sex plays in the mediation of social behaviour and, through this, the emergence and stability of social life.
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Peck, Stephen, Michael G. Gardner, Jennifer M. Seddon, and Greg Baxter. "Life-history characteristics of the yakka skink, Egernia rugosa, indicate long-term social structure." Australian Journal of Zoology 64, no. 5 (2016): 335. http://dx.doi.org/10.1071/zo16061.

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One lineage of squamates, the Egernia group, has received particular study due to stable aggregations identified in many of the species. Egernia rugosa is a large, terrestrial, viviparous skink and has been reported living communally. To investigate whether this species lives in social aggregations, we examined life-history characteristics in one population within the Mulga Lands bioregion of south-west Queensland. We found this skink used both active and inactive rabbit burrows. Parturition occurred in January/February and took several days to complete, with a mean litter size of 2.4 and a mean snout–vent length (SVL) of 84.5 mm. Six subadult age cohorts were identified. Juveniles took at least five years to reach sexual maturity and lizards had a life expectancy of >12 years. Lizards were found clustered in aggregations of up to 21 individuals (mean = 7.21) of multiple ages. An average of 50% (range = 31–67%) of all individuals within each of the age cohorts were located at their original location for two or more seasons. Dispersal was recorded for older subadult lizards. These characteristics support the hypothesis that E. rugosa aggregations comprise long-term family units; however, genetic analysis would be needed to confirm kin-based associations.
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Dissertations / Theses on the topic "Egernia"

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Bellamy, Stephen. "Resource partitioning between two sympatric Australian skinks, Egernia multiscutata and Egernia whitii." Connect to this title online, 2006. http://catalogue.flinders.edu.au/local/adt/public/adt-SFU20070124.145924/index.html.

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Arena, Phillip Charles. "Aspects of the biology of the King's skink Egernia Kingii (Gray)." Thesis, Arena, Phillip Charles (1986) Aspects of the biology of the King's skink Egernia Kingii (Gray). Honours thesis, Murdoch University, 1986. https://researchrepository.murdoch.edu.au/id/eprint/46320/.

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Selected aspects of the biology of a large scincid lizard, King's skink Egernia kingii, were studied on Penguin Island (32 18'S, 115 42'E) near Perth, Western Australia, from May 1985 to April 1986. The high density of this species (800ha in areas of preferred habitat) was attributed to abundant food and low adult predation rates on the island...
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Bellamy, Robyn Lyle, and robyn bellamy@flinders edu au. "LIFE HISTORY AND CHEMOSENSORY COMMUNICATION IN THE SOCIAL AUSTRALIAN LIZARD, EGERNIA WHITII." Flinders University. Biological Sciences, 2007. http://catalogue.flinders.edu.au./local/adt/public/adt-SFU20070514.163902.

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ABSTRACT Social relationships, habitat utilisation and life history characteristics provide a framework which enables the survival of populations in fluctuating ecological conditions. An understanding of behavioural ecology is critical to the implementation of Natural Resource Management strategies if they are to succeed in their conservation efforts during the emergence of climate change. Egernia whitii from Wedge Island in the Spencer Gulf of South Australia were used as a model system to investigate the interaction of life history traits, scat piling behaviour and chemosensory communication in social lizards. Juveniles typically took ¡Ý 3 years to reach sexual maturity and the results of skeletochronological studies suggested longevity of ¡Ý 13 years. Combined with a mean litter size of 2.2, a pregnancy rate estimated at 75% of eligible females during short-term studies, and highly stable groups, this information suggests several life history features. Prolonged juvenile development and adult longevity may be prerequisite to the development of parental care. Parental care may, in turn, be the determining factor that facilitates the formation of small family groups. In E. whitii parental care takes the form of foetal and neonatal provisioning and tolerance of juveniles by small family or social groups within established resource areas. Presumably, resident juveniles also benefit from adult territorialism. Research on birds suggests that low adult mortality predisposes cooperative breeding or social grouping in birds, and life history traits and ecological factors appear to act together to facilitate cooperative systems. E. whitii practice scat piling both individually and in small groups. Social benefits arising from signalling could confer both cooperative and competitive benefits. Permanent territorial markers have the potential to benefit conspecifics, congenerics and other species. The high incidence of a skink species (E. whitii) refuging with a gecko species (N. milii) on Wedge Island provides an example of interspecific cooperation. The diurnal refuge of the nocturnal gecko is a useful transient shelter for the diurnal skink. Scat piling may release a species ¡®signature¡¯ for each group that allows mutual recognition. Scat piling also facilitates intraspecific scent marking by individual members, which has the potential to indicate relatedness, or social or sexual status within the group. The discovery of cloacal scent marking activity is new to the Egernia genus. E. Whitii differentiate between their own scats, and conspecific and congeneric scats. They scent mark at the site of conspecific scats, and males and females differ in their response to scent cues over time. Scat piling has the potential to make information concerning the social environment available to dispersing transient and potential immigrant conspecifics, enabling settlement choices to be made. This thesis explores some of the behavioural strategies employed by E. whitii to reduce risks to individuals within groups and between groups. Scents eliciting a range of behavioural responses relevant to the formation of adaptive social groupings, reproductive activity, and juvenile protection until maturity and dispersal are likely to be present in this species. Tests confirming chemosensory cues that differentiate sex, kin and age would be an interesting addition to current knowledge. The interaction of delayed maturity, parental care, sociality, chemosensory communication and scat piling highlights the sophistication of this species¡¯ behaviour. An alternative method for permanently marking lizards was developed. Persistence, reliability and individual discrimination were demonstrated using photographic identification and the method was shown to be reliable for broad-scale application by researchers. Naturally occurring toe loss in the field provided a context against which to examine this alternative identification method and revealed the need to further investigate the consequences of routine toe clipping, as this practice appears to diminish survivorship.
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Bradley, Holly Sydelle. "Improving translocation management for restricted range reptiles Case Study: The Western Spiny-tailed Skink (Egernia stokesii badia)." Thesis, Curtin University, 2021. http://hdl.handle.net/20.500.11937/88813.

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This thesis presents the Western Spiny-tailed Skink (Egernia stokesii badia) as a case study of how identifying and addressing knowledge gaps on the ecological requirements of a threatened reptile in Australia is key to informed, effective management. Understanding the specific biotic and behavioural requirements of the skink is critical to design translocation projects in active mining areas in the future, to prevent further population declines of this culturally significant, endemic species.
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Bellamy, Stephen, and steve bellamy@flinders edu au. "RESOURCE PARTITIONING BETWEEN TWO SYMPATRIC AUSTRALIAN SKINKS, EGERNIA MULTISCUTATA AND EGERNIA WHITII STEPHEN BELLAMY Thesis submitted in total fulfilment of the requirements of the degree of Doctor of Philosophy AUGUST 2006 SCHOOL OF BIOLOGICAL SCIENCES FLINDERS UNIVERSITY, ADELAIDE, SOUTH AUSTRALIA ________________________________________." Flinders University. Biological Sciences, 2007. http://catalogue.flinders.edu.au./local/adt/public/adt-SFU20070124.145924.

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When species compete for resources, in a stable homogeneous environment, there are two possible outcomes. The first is that one species will out-compete the other and exclude it from the environment. This is known as the competitive exclusion principle. The second is that both species will manage to coexist. Coexistence can only occur if the species’ niches are differentiated such that interspecific competition is minimised, or eliminated. This outcome is known as resource partitioning. Two closely related Australian skink species of the Egernia genus, Egernia multiscutata and Egernia whitii, are abundant and sympatric on Wedge Island in South Australia’s Spencer Gulf. The species are morphologically very similar and appear to have very similar life histories and habitat requirements. Ostensibly, they would compete for limiting resources in this environment. This thesis is the first investigation into resource partitioning in this previously unstudied model organism. I report the results of multi-faceted investigations into the coexistence of the skinks, E. multiscutata and E. whitii on Wedge Island and the evidence for, and mechanisms of, any facultative resource partitioning between them. Study methods involved a transect survey of most of Wedge Island to determine the species’ distributions and any evidence for resource partitioning; a morphological comparison to investigate any potential competitive advantages of either species; a habitat choice experiment to establish retreat-site preferences in the absence of interspecific interference; and, a series of staged dyadic encounter experiments to investigate interspecific competitive interactions. Resource partitioning was evidenced by differential distributions of the species among substrates containing the elements required for permanent refuge shelters. This partitioning was not mediated by avoidance of particular substrates but by the presence of the opponent species, combined with attraction to suitable substrates. Asymmetries in some morphological characters were found to confer a potential competitive advantage to E. multiscutata in agonistic encounters with E. whitii. Both species were found to have the same refuge site preferences when interference competition was experimentally removed. This result was not concordant with observed resource partitioning in the field and suggests that the habitat choices of both species are modified by the presence of the opponent species. Analyses of staged dyadic encounter experiments showed that E. multiscutata was more likely to gain greater access to a contested habitat resource and more likely to exclude E. whitii from the resource than vice-versa. Nevertheless, the outcome of competitive interactions was not completely deterministic and there was some tolerance of co-habitation. E. multiscutata’s competitive advantage was attributable largely to its greater mass and head dimensions relative to snout to vent length. However, differential behavioural responses to the threat of larger opponent size also played an important part in resource partitioning between the species.
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Barr, James Ian. "Adaptive ecology of the King’s skink, Egernia kingii, in response to varying levels of predation risk, with a focus on caudal autotomy." Thesis, Curtin University, 2020. http://hdl.handle.net/20.500.11937/81909.

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Anti-predation strategies allow individuals to avoid death but can be costly to the individual. As predation pressure changes ontogenetically, temporally and evolutionarily, so do costly anti-predation strategies to minimise maximise survival but minimise associated costs. I investigate how caudal autotomy changes morphologically and behaviourally within a large scincid the King’s skink (Egernia kingii) both ontogenetically and across predation gradients.
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Mercier, Angela. "Home range and microhabitat selection by Tiliqua rugosa and Egernia napoleonis in the native jarrah forest and rehabilitated mined areas in jarrah forest of Western Australia." Thesis, Mercier, Angela (2006) Home range and microhabitat selection by Tiliqua rugosa and Egernia napoleonis in the native jarrah forest and rehabilitated mined areas in jarrah forest of Western Australia. Honours thesis, Murdoch University, 2006. https://researchrepository.murdoch.edu.au/id/eprint/32754/.

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The present study examined the home range and microhabitat selection by Tiliqua rugosa and Egernia napoleonis in the jarrah forest of southwest Western Australia. The aim of the study was to compare the microhabitats used by T. rugosa with the microhabitats used by E. napoleonis and discuss why T. rugosa was located in rehabilitated bauxite mined areas, whereas E. napoleonis was not. The overall objective of the present study was to identify methods which may be incorporated into the management of rehabilitated bauxite mined areas operated by Alcoa World Alumina Australia, to accelerate the return of T. rugosa and E. napoleonis. A total of five Tiliqua rugosa and eight Egernia napoleonis were radio tracked from October 2005 until January 2006. The 100% home range average of T. rugosa was significantly larger than that of E. napoleonis. There was no significant difference in 50% Core home range average between the two species. The home range of T. rugosa was made up of native jarrah forest and rehabilitated mined areas. E. napoleonis were only found in native jarrah forest. The microhabitats significantly selected by Tiliqua rugosa in the native jarrah forest and rehabilitated mined areas were shrubs and leaf litter. In the native jarrah forest spikey and dome-shaped shrubs were significantly selected, but when in the rehabilitated mined areas spikey shrubs were significantly selected, which was probably due to the scarcity of dome-shaped shrubs in the rehabilitated areas. The selected microhabitats of Egernia napoleonis were logs and trees. The Eucalyptus marginata logs selected by Egernia napoleonis had a mean diameter of 42 ± 2lcm, whilst the Corymbia calophylla logs had a mean diameter of 48 ± 6cm. E. napoleonis did not differentiate between tree species of log. Common characteristics of logs selected by E. napoleonis were the presence of cracks, hollows, and some degree of fire damage. In the present study no logs were located in rehabilitated mined areas. The trees selected by Egernia napoleonis were significantly larger than a random selection of those found in native jarrah forest or those found in rehabilitated mined areas. Eucalyptus marginata selected by E. napoleonis had an average diameter at breast height of 73 ± 16cm whilst Corymbia calophylla had an average diameter at breast height of 58± 15cm. Species of tree were not differentiated by E. napoleonis. Both microhabitat structures (logs and large trees) selected by Egernia napoleonis were unable to be located in rehabilitated mined areas. The spikey shrubs and leaf litter microhabitats selected by Tiliqua rugosa were present in native jarrah forest and rehabilitated mined areas. The present study has shown that a lack of suitable microhabitats was reducing the occurrence of E. napoleonis in rehabilitated mined areas. Methods to help rectify this problem are discussed.
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Smith, Rosali. "The potential of hydrellia egeriae rodrigues (diptera: ephydridae) as a biocontrol agent for egeria densa planch. (hydrocharitaceae) in South Africa." Thesis, Rhodes University, 2017. http://hdl.handle.net/10962/53733.

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The integrity of South Africa’s valuable freshwater ecosystems has been threatened by aquatic invasive plants since the 1900s. Floating aquatic weeds, such as Eichhornia crassipes (C. Mart) Solms (Pondederiaceae), Pistia stratiotes L. (Araceae), Salvinia molesta D.S. Mitchell (Salviniaceae), Azolla filiculoides Lam. (Azollaceae), and the emergent weed, Myriophyllum aquaticum Verdc. (Haloragaceae) benefited from open, nutrient-rich water bodies. Due to the limitations of mechanical and chemical control in aquatic environments, classical biological control has been a huge asset in managing these weeds; consequently bringing them under complete or substantial control. However, submerged aquatic weeds are widely distributed through the aquarium trade in South Africa; facilitating their invasion into new habitats. The removal of surface mats following the successful management of floating weeds has enhanced the growth and competitive ability of submerged aquatic weeds, such as Hydrilla verticillata (L.f.) Royle (Hydrocharitaceae), Myriophyllum spicatum L. (Haloragaceae) and Egeria densa Planch. (Hydrocharitaceae) in South Africa. Of these species, E. densa has become the most widely distributed, invading numerous systems across South Africa. Compared to other exotic submerged aquatic plants, E. densa is the only species capable of inhabiting freshwater systems in every province and therefore, it is vital to manage existing populations and prevent its further distribution and invasion. Hydrellia spp. (Diptera: Ephydridae) biological control agents have been used extensively in the management of submerged aquatic weeds elsewhere, particularly those in the Hydrocharitaceae (Balciunas and Burrows 1996; Wheeler and Center 2001. Hydrellia egeriae Rodrigues (Diptera: Ephydridae) has been identified as a promising candidate for E. densa and was imported into quarantine at Rhodes University, Grahamstown in 2014. The aims of this study were to conduct a pre-release assessment of the potential of H. egeriae as a biological control agent for E. densa in South Africa. The first objective of this study was to establish the life history of the agent under controlled conditions on E. densa found in South Africa, as well as its population growth parameters to predict its invasion success in the field. Secondly, laboratory host-specificity testing was conducted to validate the host range of the agent, in view of published native range host-specificity testing, and to establish potential risks to non-target species, should it be released. Finally, a biological control agent should also effectively reduce the fitness of its host plant, and therefore, impact studies were conducted. Laboratory impact studies have been limited in the past, in that they only investigate agent damage for short ecological periods, thus underestimating the damage capacity of the agent under investigation. Therefore, the damage capacity of H. egeriae was investigated over three consecutive generations in multi-generational impact trials. In a controlled environment of 22 ± 2°C, H. egeriae exhibited the ability to rapidly increase in population size within a short period of time, which will enhance agent establishment and build-up in the field. Host-specificity trials indicated that H. egeriae has a host range restricted to the Hydrocharitaceae, with exploratory feeding and development on Lagarosiphon major Ridley, L. muscoides Harvey and Vallisneria spiralis L. However, only L. major supported agent development during paired larval choice tests, and continuation trials showed that the test species was not physiologically capable of supporting viable agent populations. Risk analysis illustrated that the feeding and reproductive risks that H. egeriae pose to non-target species are very low and therefore, H. egeriae should be safe for release in South Africa. Additionally, significant damage to vital plant structures (shoot growth and side shoot length) was only recorded under high (five larvae) agent abundances. Encouragingly, the number of leaves mined at the end of the experiment was similar for both intermediate (three) and high (five) larval abundances, suggesting that cumulative leaf-mining under intermediate larval abundances has the potential to reduce the fitness of E. densa, given sufficient time. Results from pre-release assessments provide a robust understanding of the specialization of the potential biological control agent to its host plant. Nevertheless, the absolute success of a biological control programme depends on the many factors after prerelease assessments that determine agent establishment, persistence and target weed suppression, e.g. mass-rearing, release protocols and a/biotic factors within the recipient community. Considering these factors, the best mass-rearing and release protocols are proposed here and future research priorities are identified. Finally, the long term success for managing E. densa in South Africa will require a holistic approach to address the underlying factors, such as eutrophication and human-mediated distribution that drive submerged aquatic plant invasions.
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Corrêa, Marcelo Rocha [UNESP]. "Composição química, bromatológica e decomposição de plantas de Egeria densa, Egeria najas e Ceratophyllum demersum coletadas no reservatório de Jupiá." Universidade Estadual Paulista (UNESP), 2002. http://hdl.handle.net/11449/86465.

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Made available in DSpace on 2014-06-11T19:22:17Z (GMT). No. of bitstreams: 0 Previous issue date: 2002-02-15Bitstream added on 2014-06-13T20:09:17Z : No. of bitstreams: 1 correa_mr_me_botfca.pdf: 886137 bytes, checksum: 7cf20ed4a5044460c767ebdefdff18c1 (MD5)
O objetivo deste trabalho foi avaliar a composição química, bromatológica e a decomposição de Egeria densa, E. najas e Ceratophyllum demersum, três espécies de plantas aquáticas imersas provenientes do reservatório de Jupiá da Usina Hidrelétrica Souza Dias, para determinar a melhor estratégia para descarte e/ou aproveitamento da biomassa coletada em operações mecânicas de controle. O estudo foi realizado em duas épocas do ano, verão e inverno. Amostras de plantas foram coletadas em nove pontos do trecho Tietê do reservatório, envolvendo quatro lagoas marginais e o leito do rio em questão. Estas foram desidratadas, pesadas para determinação de matéria seca, moídas e encaminhadas aos respectivos laboratórios para análise. Os maiores teores de água encontrado nas plantas foi para a espécie C. demersum, a qual obteve também a menor relação C/N, em comparação às demais espécies estudadas. Para as três espécies, a maior concentração dos elementos analisados, foi encontrada durante o período de verão, apresentando decréscimo nas concentrações no inverno. As espécies amostradas apresentam boa opção para uso em dietas animal, porém deve-se levar em conta o alto teor de água, necessitando prévia secagem para que possa ser inserida na dieta alimentar de animais. Referente ao descarte da biomassa em solo, ficou claro a necessidade de se efetuar tal procedimento em época seca do ano, haja visto a grande dificuldade de secagem e incorporação do material em solo úmido....
The purpose of this work was to evaluate the chemical and bromatological compositions and the decomposition of Egeria densa, Egeria najas and Ceratophyllum demersum residues, three submerged aquatic plants, importants in Jupia reservoir. These data will be useful to determine a better strategy for discharge and/or utilization the plant biomass harvested by the mechanical control. The study was carried out in two seasons, summer and winter. Plants samples were collected in nine points in the Tiete river, including four marginal lakes and in the river body. Samples were dried, weighted, grounded and sent to laboratories for chemical analysis. Higher water level in plants were observed in the C. demersum species, in which were observed the smaller C/N relationship too, in comparison in the other species studied. For the three species, higher concentration of elements analyzed, was observed during the summer, decreasing in the winter. The species are good option to use in animal feeding, even it should be considered the high level of water, requiring a drying before to be inserted in feeding of animals. Considering to the discharge of the plant biomass in the soil, it was clear that need to make such procedure in dry season of the year, have seen that the great difficult in evaporate and incorporation of material in humid soil. However, the probable discard it should happen in the areas with irrigation systems, facilitating the degradation process of the incorporated material in the wet soil.
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Corrêa, Marcelo Rocha 1972. "Composição química, bromatológica e decomposição de plantas de Egeria densa, Egeria najas e Ceratophyllum demersum coletadas no reservatório de Jupiá /." Botucatu : [s.n.], 2002. http://hdl.handle.net/11449/86465.

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Orientador: Edivaldo Domingues Velini
Banca: Dagoberto Martins
Banca: Robinson Antonio Pitelli
Resumo: O objetivo deste trabalho foi avaliar a composição química, bromatológica e a decomposição de Egeria densa, E. najas e Ceratophyllum demersum, três espécies de plantas aquáticas imersas provenientes do reservatório de Jupiá da Usina Hidrelétrica Souza Dias, para determinar a melhor estratégia para descarte e/ou aproveitamento da biomassa coletada em operações mecânicas de controle. O estudo foi realizado em duas épocas do ano, verão e inverno. Amostras de plantas foram coletadas em nove pontos do trecho Tietê do reservatório, envolvendo quatro lagoas marginais e o leito do rio em questão. Estas foram desidratadas, pesadas para determinação de matéria seca, moídas e encaminhadas aos respectivos laboratórios para análise. Os maiores teores de água encontrado nas plantas foi para a espécie C. demersum, a qual obteve também a menor relação C/N, em comparação às demais espécies estudadas. Para as três espécies, a maior concentração dos elementos analisados, foi encontrada durante o período de verão, apresentando decréscimo nas concentrações no inverno. As espécies amostradas apresentam boa opção para uso em dietas animal, porém deve-se levar em conta o alto teor de água, necessitando prévia secagem para que possa ser inserida na dieta alimentar de animais. Referente ao descarte da biomassa em solo, ficou claro a necessidade de se efetuar tal procedimento em época seca do ano, haja visto a grande dificuldade de secagem e incorporação do material em solo úmido...(Resumo completo, clicar acesso eletrônico abaixo).
Abstract: The purpose of this work was to evaluate the chemical and bromatological compositions and the decomposition of Egeria densa, Egeria najas and Ceratophyllum demersum residues, three submerged aquatic plants, importants in Jupia reservoir. These data will be useful to determine a better strategy for discharge and/or utilization the plant biomass harvested by the mechanical control. The study was carried out in two seasons, summer and winter. Plants samples were collected in nine points in the Tiete river, including four marginal lakes and in the river body. Samples were dried, weighted, grounded and sent to laboratories for chemical analysis. Higher water level in plants were observed in the C. demersum species, in which were observed the smaller C/N relationship too, in comparison in the other species studied. For the three species, higher concentration of elements analyzed, was observed during the summer, decreasing in the winter. The species are good option to use in animal feeding, even it should be considered the high level of water, requiring a drying before to be inserted in feeding of animals. Considering to the discharge of the plant biomass in the soil, it was clear that need to make such procedure in dry season of the year, have seen that the great difficult in evaporate and incorporation of material in humid soil. However, the probable discard it should happen in the areas with irrigation systems, facilitating the degradation process of the incorporated material in the wet soil.
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Books on the topic "Egernia"

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Braniște, Marin M. *. Însemnările de călătorie ale peregrinei egeria. Craiova: Mitropoliei Olteniei, 1987.

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Gavin, Betts, ed. Concordantia in Itinerarium Egeriae =: A concordance to the Itinerarium Egeriae. Hildesheim: Olms-Weidmann, 1989.

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Echegoyen, José Javier Iso. La Peregrinatio Egeriae: Una concordancia. [Zaragoza]: Departamento de Ciencias de la Antiguedad, Universidad de Zaragoza, 1987.

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Sadovskiĭ, M. Dvenadt︠s︡atʹ egereĭ: [vesëlye stikhi-poteshki]. Moskva: Malysh, 1990.

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Concordancia lematizada de los itinerarios de Egeria y Antonino. [Zaragoza]: Departamento de Ciencias de la Antigüedad, Universidad de Zaragoza, 1993.

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Rossi, Ana Muncharaz. El viaje de Egeria: La peregrina hispana del siglo IV. Madrid: Palabra, 2012.

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When they sailed the world: Egeria and the Millidge family ships. Bowen Island, B.C: E. Lawson, 2010.

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Mallamas, Gloria Mills. Keaton Mills family cemetery, Egeria: An era : family stories and cookbook. Parsons, W.Va: McClain Printing Co., 1998.

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Väänänen, Veikko. Le journal-épître d'Egérie (Itinerarium Egeriae): Étude linguistique. Helsinki: Suomalainen Tiedeakatemia, 1987.

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1948-, McKay John, and Ship Research Services, eds. The Egeria: An example of mid-nineteenth century New Brunswick ship construction. Vancouver: Ship Research Services, 2007.

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Book chapters on the topic "Egernia"

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Polhill, R. M., and David Simpson. "Egeria." In Flora of Tropical East Africa, 7–8. London: CRC Press, 2021. http://dx.doi.org/10.1201/9781003071945-4.

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Menconero, Sofia. "Piranesi at the Nymphaeum of Egeria: Perspective Expedients." In Graphical Heritage, 343–56. Cham: Springer International Publishing, 2020. http://dx.doi.org/10.1007/978-3-030-47983-1_31.

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Limor, Ora. "Reading Sacred Space: Egeria, Paula, and the Christian Holy Land." In Cultural Encounters in Late Antiquity and the Middle Ages, 1–15. Turnhout: Brepols Publishers, 2001. http://dx.doi.org/10.1484/m.celama-eb.3.1473.

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Dutartre, A., J. Haury, and A. Jigorel. "Succession of Egeria densa in a drinking water reservoir in Morbihan (France)." In Biology, Ecology and Management of Aquatic Plants, 243–47. Dordrecht: Springer Netherlands, 1999. http://dx.doi.org/10.1007/978-94-017-0922-4_34.

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Johnson, Maxwell E. "2. Reconciling Cyril and Egeria on the Catechetical Process in Fourth-Century Jerusalem." In Essays in Early Eastern Initiation, edited by Paul Bradshaw, 18–30. Piscataway, NJ, USA: Gorgias Press, 2010. http://dx.doi.org/10.31826/9781463219413-003.

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Frazer, James George. "Chapter 8 the kings of rome." In The Golden Bough. Oxford University Press, 2009. http://dx.doi.org/10.1093/owc/9780199538829.003.0010.

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i Egeria at Nemi a nymph of water and of the oak, perhaps a form of Diana. The legend of nuptials of Numa and Egeria may be a reminiscence of a sacred marriage which the kings of Rome contracted with the goddess of water and...
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"2. Pilgrimage: Egeria." In Women of Byzantium. Yale University Press, 2004. http://dx.doi.org/10.37862/aaeportal.00178.006.

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"Egeria in Gallecia Mon." In The Visigoths in Gaul and Iberia (Update), 81–82. BRILL, 2017. http://dx.doi.org/10.1163/9789004341142_026.

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"Egeria on Mount Sinai:." In The Folds of Olympus, 69–92. Princeton University Press, 2022. http://dx.doi.org/10.2307/j.ctv287skf3.10.

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DE VALENCIENNES, PIERRE-HENRI. "Grotto of the Nymph Egeria." In City of the Soul, 164–65. University Press of New England, 2016. http://dx.doi.org/10.2307/j.ctv1xx9k9w.64.

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Conference papers on the topic "Egernia"

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Guan, Hui, Xipeng Shen, and Hamid Krim. "Egeria." In SC '17: The International Conference for High Performance Computing, Networking, Storage and Analysis. New York, NY, USA: ACM, 2017. http://dx.doi.org/10.1145/3126908.3126961.

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SANTOS, G. H. F., A. N. MÓDENES, F. R. ESPINOZA-QUIÑONES, A. R. TASCHIN, and M. A. S. S. RAVAGNANI. "APLICAÇÃO DA TÉCNICA SR-TXRF PARA AVALIAÇÃO DO MECANISMO DE SORÇÃO DO METAL PESADO CD(II) PELA BIOMASSA EGERIA DENSA INATIVA." In XX Congresso Brasileiro de Engenharia Química. São Paulo: Editora Edgard Blücher, 2015. http://dx.doi.org/10.5151/chemeng-cobeq2014-0500-25211-155900.

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