Relevant bibliographies by topics / Insect; Insects

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Academic literature on the topic 'Insect; Insects'

Author: Grafiati
Published: 4 June 2021
Last updated: 15 February 2022

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Journal articles on the topic "Insect; Insects"

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Patouma, Lewa, Elias Nchiwan Nukenine, Ibrahima Adamou, and Champlain Djieto-Lordon. "Caractérisation de l’entomofaune de la tomate (Lycopersicon esculentum Mill) en champ dans la localité de Meskine, région de l’Extrême-nord, Cameroun." International Journal of Biological and Chemical Sciences 14, no. 6 (October 6, 2020): 2069–76. http://dx.doi.org/10.4314/ijbcs.v14i6.11.

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La localité de Meskine à Maroua, longtemps considérée comme une zone céréalière de l’Extrême-nord du Cameroun, est devenue, de nos jours, une région de production de tomate par excellence. Les producteurs de cette culture font face à plusieurs contraintes parmi lesquelles les activités des insectes ravageurs. Dans le but de contribuer à l’amélioration de la production de cette culture, la présente étude a permis d’établir une liste des insectes ravageurs et utiles pullulant dans les champs de tomate. Les insectes, collectés par aspiration et par fauchage, ont été identifiés dans les laboratoires de Zoologie appliquée des universités de Ngaoundéré et Yaoundé I au Cameroun. L’inventaire a montré que les insectes inféodés à la culture de la tomate dans la localité de Meskine à Maroua sont représentés par huit (8) ordres, vingt-une (21) familles et vingt-deux (22) genres. Ces insectes. Bien que la majorité de ces insectes soit des ravageurs, on note la présence de quelques prédateurs et pollinisateurs. La détermination de l’entomofaune de la culture de tomate dans cette localité est un outil qui peut ainsi servir à la conception de stratégies de lutte contre les ravageurs. Mots clés: Lycopersicon esculentum, insectes ravageurs, insectes prédateurs, Maroua. English Title: Entomofauna associated to the tomato crops (Lycopersicon esculentum Mill) in the locality of Meskine, Far North region, Cameroon Meskine in the Far North region, Cameroon has long been considered as cereal zone production. This locality has become today a region of tomato production per excellence. Farmers in this locality are faced to many constrains among which activities of insect pests. In order to improve the production of this crop, the present study allows us to establish a list of potential insect pests and benefit insects of tomato crops. Insects collected using aspirator and sweep net were identified in the laboratories of applied Zoology at the Universities of Ngaoundéré and Yaoundé I, Cameroon. The results of our study showed that, insects associated to tomatoes in the locality of Meskine were from eight (8) orders, twenty-one (21) families and twenty-two (22) genera. Although the majority of these insects were represented by potential insect pests, some predators and pollinators were recorded. The establishment of the lists of harmful and benefits insects associated to the tomato crop in this locality can therefore be used to design strategies for the management of insect pests.Keywords: Lycopersicon esculentum, insect pests, predator insects, Maroua
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Raloff, Janet. "Insects: Audubon's insect cafeteria." Science News 173, no. 18 (September 30, 2009): 21. http://dx.doi.org/10.1002/scin.2008.5591731817.

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Feyereisen, R. "Evolution of insect P450." Biochemical Society Transactions 34, no. 6 (October 25, 2006): 1252–55. http://dx.doi.org/10.1042/bst0341252.

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The first fully sequenced insect genomes were those of the fruitfly and the mosquito, both from the order Diptera. Now, with an increasing number and diversity of insect genomes becoming available, the diversity of insect P450 genes can be better appreciated and tentative ideas about the evolution of the CYP (cytochrome P450) superfamily in insects can be proposed. There are four large clades of insect P450 genes that existed before the divergence of the class Insecta and that are also represented by CYP families in vertebrates: the CYP2 clade, the CYP3 clade, the CYP4 clade and the mitochondrial P450 clade. P450s with known or suspected physiological functions are present in each of these clades and only a dozen genes appear to have orthologues or very close paralogues in each insect genome. P450 enzymes from each of these clades have been linked to insecticide resistance or to the metabolism of natural products and xenobiotics. In particular, insects appear to maintain a repertoire of mitochondrial P450 paralogues devoted to the response to environmental challenges.
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Ain, Nurul. "THEOREMS IN QURAN ABOUT THE CREATION OF INSECTS AND ITS DIVERSITY IN TAMAN UNDAAN SURABAYA." Journal Intellectual Sufism Research (JISR) 1, no. 2 (June 1, 2019): 5–10. http://dx.doi.org/10.52032/jisr.v1i2.27.

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In the Al-quran there are many verses that explain the animals that exist in this universe, one of which is about Insect. The research on Insect diversity around the Surabaya Undaan Park aims to describe the diversity of Insects and compare the number of members of each order in the Insect class around the Surabaya Undaan Park and look for their relevance to the Qur'anic proposition about the creation of Insects. The method used in this research assignment was observation, which was to go directly to the field to catch Insects in 5 plots in the vicinity of Surabaya Undakan Park with 4 repetitions in each plot, then collect data to be identified. Based on the results of observations, collection and identification, it can be found that there are various Insects in the area. This was evidenced by the discovery of various orders from Insectas, among others: Order Lepidoptera, Order Odonata, Order Hymenoptera, Order Diptera, and Order Orthoptera. Comparison of the number of species from each order is different. The most dominant number of species is in the order of Lepidoptera which was then followed by the order Hymenoptera.
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Andreas, Peter, Anna Kisiala, R. J. Neil Emery, Rosemarie De Clerck-Floate, John F. Tooker, Peter W. Price, Donald G. Miller III, Ming-Shun Chen, and Edward F. Connor. "Cytokinins Are Abundant and Widespread among Insect Species." Plants 9, no. 2 (February 6, 2020): 208. http://dx.doi.org/10.3390/plants9020208.

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Cytokinins (CKs) are a class of compounds that have long been thought to be exclusively plant growth regulators. Interestingly, some species of phytopathogenic bacteria and fungi have been shown to, and gall-inducing insects have been hypothesized to, produce CKs and use them to manipulate their host plants. We used high performance liquid chromatography-electrospray ionization tandem mass spectrometry (HPLC-MS/MS) to examine concentrations of a wide range of CKs in 17 species of phytophagous insects, including gall- and non-gall-inducing species from all six orders of Insecta that contain species known to induce galls: Thysanoptera, Hemiptera, Lepidoptera, Coleoptera, Diptera, and Hymenoptera. We found CKs in all six orders of insects, and they were not associated exclusively with gall-inducing species. We detected 24 different CK analytes, varying in their chemical structure and biological activity. Isoprenoid precursor nucleotide and riboside forms of trans-zeatin (tZ) and isopentenyladenine (iP) were most abundant and widespread across the surveyed insect species. Notably, the observed concentrations of CKs often markedly exceeded those reported in plants suggesting that insects are synthesizing CKs rather than obtaining them from the host plant via tissue consumption, compound sequestration, and bioaccumulation. These findings support insect-derived CKs as means for gall-inducing insects to manipulate their host plant to facilitate cell proliferation, and for both gall- and non-gall-inducing insects to modify nutrient flux and plant defenses during herbivory. Furthermore, wide distribution of CKs across phytophagous insects, including non-gall-inducing species, suggests that insect-borne CKs could be involved in manipulation of source-sink mechanisms of nutrient allocation to sustain the feeding site and altering plant defensive responses, rather than solely gall induction. Given the absence of any evidence for genes in the de novo CK biosynthesis pathway in insects, we postulate that the tRNA-ipt pathway is responsible for CK production. However, the unusually high concentrations of CKs in insects, and the tendency toward dominance of their CK profiles by tZ and iP suggest that the tRNA-ipt pathway functions differently and substantially more efficiently in insects than in plants.
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O'Malley, Robert C., and William C. McGrew. "Primates, insects and insect resources." Journal of Human Evolution 71 (June 2014): 1–3. http://dx.doi.org/10.1016/j.jhevol.2014.02.010.

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Adamo, Shelley A. "Is it pain if it does not hurt? On the unlikelihood of insect pain." Canadian Entomologist 151, no. 6 (August 20, 2019): 685–95. http://dx.doi.org/10.4039/tce.2019.49.

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AbstractWhether insects (Insecta) have the subjective experience of pain is difficult to answer. Recent work in humans demonstrated that the experience of pain occurs due to the activation of a “pain network” that integrates nociceptive sensory information, memory, emotion, cognition, and self-awareness. In humans, the processing of nociceptive sensory information alone does not produce the subjective experience of pain. Insect nociception is processed largely in parallel in two higher-order areas in the brain: the mushroom bodies and the central complex. There is little evidence of a coordinated pain network that would integrate these two areas with each other along with other traits thought to be important for a pain experience in humans. However, it is difficult to exclude the possibility that insects could have a modest pain experience using a less integrated neural circuit. This possibility seems unlikely, however, because even a modest experience would require some neuronal investment. It is unclear whether insects would benefit from such an investment. Recent work in artificial intelligence suggests that relatively simple, cost-efficient circuits can produce adaptive behaviours without subjective experience. Given our current understanding of insect behaviour, neurobiology, and evolution, the likelihood that insects experience pain is low.
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Lokeshwari, R. K., and T. Shantibala. "A Review on the Fascinating World of Insect Resources: Reason for Thoughts." Psyche: A Journal of Entomology 2010 (2010): 1–11. http://dx.doi.org/10.1155/2010/207570.

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Insect resources are vast and diverse due to their enormous diversity. The exploitation and utilization of insect resources is broadly classified into four different categories. The first category is the insects of industrial resources. This level includes the utilization of silk worm, honeybee, lac insect, dye insect, and aesthetic insect. The second category is the utilization of insects for edible and therapeutic purposes. Insects are high in protein and many are rich sources of vitamins and minerals. The third category is the use of insects in forensic investigation. By analyzing the stages of succession of insects at first, rough estimation of the postmortem intervals can be done. The fourth category is the insects of ecological importance. Many insect species act as potential predators and parasites of destructive pests of insect order Lepidoptera, Diptera, and Orthoptera. Insects are also used as bioindicator to assess the cumulative effects of environmental stressors such as pollutants. Despites these fascinating benefits, insect resources are often neglected in India due to lack of proper documentation, less expertise, and advance enterprises in these fields. Hence, the paper reviews the different fascinating facets of insect resources in order to explore and utilize it in a sustainable way with reference to Indian region.
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Bear, Christopher. "Approaching Insect Death: Understandings and Practices of the UK’s Edible Insect Farmers." Society & Animals 27, no. 7 (December 11, 2019): 751–68. http://dx.doi.org/10.1163/15685306-00001871.

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AbstractWhile insects are eaten by around two billion people globally, they are a relatively new addition to the UK’s culinary landscape. A domestic production sector has begun to emerge to supply this new appetite for insects. Social scientists have been quick to explore consumer attitudes to “edible insects” but insect farmers have thus far been largely ignored. This paper addresses this gap by drawing on interviews with the UK’s current and recent edible insect farmers to explore their understandings of, and approaches to, insect death, something about which all participants expressed concern. The paper examines: 1) reasons for farmers’ concerns around how they kill their insects, ranging from anxieties around insect pain to perceived consumer attitudes; and 2) farmers’ ideas about what constitutes a “good” death for insects, and how they incorporate this in their practices.
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Styer, E. L., and J. J. Hamm. "Detection and Identification of Viruses in Economically Important Insects." Microscopy and Microanalysis 6, S2 (August 2000): 666–67. http://dx.doi.org/10.1017/s1431927600035820.

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Economically important insects include pests of plants, animals and stored products as well as insects produced commercially (honey bees, silkworms, insects for fish bait and food for birds and zoo animals). Other insects are produced in large numbers for experimental purposes, biological control of insect pests and weeds and the production of sterile insects for population suppression. Insect viruses may affect morphology, physiology and behavior, often reducing longevity and reproductive potential. Thus insect viruses can be used as biological control agents of pest insects. Insect viruses may also interfere with the production or function of biological control agents (e.g., parasitoids and predators) and insects used for research purposes. Therefore, it is advantageous to screen commercial and research colonies and imported insects for viruses.Electron microscopy of negatively stained specimens (NS EM) offers a relatively rapid and inexpensive means of screening populations of insects for the presence of viruses or viruslike particles and to monitor the progress of virus control programs.
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Dissertations / Theses on the topic "Insect; Insects"

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Gryj-Rubenstein, Ellen Orli. "Conflicting forces shaping reproductive strategies of plants : florivory and pollination /." Thesis, Connect to this title online; UW restricted, 1999. http://hdl.handle.net/1773/5126.

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Warwick, Stuart. "Nutritional regulation and spermatophylax donation in the mating system of Gryllodes sigillatus (Orthoptera: Gryllidae)." Thesis, University of Oxford, 1999. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.325532.

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Demary, Kristian C. "Connecting pre- and post-mating episodes of sexual selection in Photinus greeni fireflies /." Thesis, Connect to Dissertations & Theses @ Tufts University, 2005.

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Thesis (Ph.D.)--Tufts University, 2005.
Adviser: Sara M. Lewis. Submitted to the Dept. of Biology. Includes bibliographical references. Access restricted to members of the Tufts University community. Also available via the World Wide Web;
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Jonsson, Mattias. "Dispersal ecology of insects inhabiting wood-decaying fungi /." Uppsala : Swedish University of Agricultural Sciences, 2002. http://diss-epsilon.slu.se/archive/00000064/.

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Thesis (doctoral)--Swedish University of Agricultural Sciences, 2002.
Thesis documentation sheet inserted. Appendix reprints three manuscripts and one published paper, three of which are co-authored with others. Includes bibliographical references. Also issued electronically via World Wide Web in PDF format; PDF version lacks abstract, ack., and appendix. One ill. in PDF version is in col.
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Shadung, Kagiso Given. "Improving attractiveness of an insect pest through value-addition : A possible insect management strategy." Thesis, University of Limpopo ( Turfloop campus), 2012. http://hdl.handle.net/10386/756.

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Thesis (M.Sc. (Plant Protection)) --University of Limpopo, 2012
Attractiveness of insect pest for use as sources of food may be improved by providing information on preservation and relevant nutritional value. Nutritional composition in edible insects may depend on drying method and/or vegetation (location). Influence of drying method and location on nutritional composition of the African metallic wood boring beetle (Sternocera orissa), widely consumed in certain rural communities of Limpopo Province, South Africa, was investigated. Randomised complete block design in a 3 x 3 factorial arrangement was used with three drying methods (oven-drying, freeze drying, cooking method) and three locations (Khureng, Magatle, Ga-Masemola), with three replicates. Nutritional composition data were subjected to a two-way analysis of variance (ANOVA) and means were separated using Turkey Honestly Significant Differences (HSD) at 5 % level of significance. Relative to freeze-drying, oven-drying and cooking methods increased protein, carbohydrates, fat, energy, ash and dry matter content with the exception of cooking method, which decreased the moisture content. Compared to other locations, Ga-Masemola significantly increased fat and energy of the test beetle. Relative to the freeze-drying method, oven-drying and cooking increased (P ≤ 0.05) essential and non-essential amino acids. Location did not have significant effect on the essential and non-essential amino acids of S. orissa across all the villages. Similarly, oven-drying and cooking increased K, P, Fe, Zn and Mg. Compared to locations, Ga-Masemola increased (P ≤ 0.05) Fe of the test beetle. Results of the study suggested that oven-drying and cooking methods improved the nutritional composition of S. orissa, which has the potential of enhancing nutrition in marginal rural communities of Limpopo Province. Providing results of this study to rural communities through extension services has the potential of improving the attractiveness of this beetle to marginal communities, and thus, increasing harvesting and therefore, reduce insects population densities.
the Technology Innovation Agency (TIA) and the National Research Foundation
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Ross, Sally Jane. "The phytophagous insect community on the Veld Fig, Ficus Burtt-Davyi Hutch." Thesis, Rhodes University, 1994. http://hdl.handle.net/10962/d1005425.

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The quest for patterns in community organisation is a daunting task which may be made easier by concentrating on communities associated with a restricted range of resources and therefore of relative simplicity. Here, the phytophagous insect community on the African fig tree Ficus burtt-davyi Hutch. was studied in an attempt to gain some insight into the factors which influence the composition of insect herbivore communities at a very local level, on individual plants of one host species at a single location. The tree's phenological patterns were detennined, due to their relevance to herbivores, particularly those which are host-specific feeders. The trees exhibited inter-tree asynchrony and intra-tree synchrony in fruit crop initiation, whereas leaf production was synchronous both within and between trees. Sixteen frequently occurring phytophagous insect species fed on the 123 F. burtt-davyi trees in the study area over a period of one year. Factors with the potential to influence the composition of this community were investigated at levels of the whole community (species richness), the guild, and the individual species. At each 'level' the effects of the measured factors on fluctuations in community composition were investigated, both over time (i.e. temporally) and spatially from tree to tree. During the year the phytophage community was influenced largely by temperature, although rainfall and tree phenological changes did exert varying influences on the abundances of guilds and individual species. Tree to tree variation in species richness (and thus commensurately, in the frequencies of occurrence of guilds and individual species) was influenced primarily by tree architectural complexity. Architecturally more complex trees hosted a greater number of species, a relationship largely attributable to effects of passive sampling and within-tree microhabitat heterogeneity and/or the availability of living space. The distributions of the leaf and stem piercing species were strongly associated with the presence of ants and this relationship manifested itself within the community as a whole. The degree of isolation of trees had consequences for individual species and for overall species richness, with the numbers of species present decreasing as trees became more isolated. A detailed analysis of guild distributional patterns revealed that the most important influential factors were those also evident at the level of the whole community and that species within guilds were, on the whole, no more similar to one another with respect to their habitat preferences than species from different guilds. The grouping of species into functional units therefore threw no additional light on the way in which this community is organised. An analysis of possible interspecific interactions between all of the phytophagous species in the community revealed only positive associations, both between species within guilds and between those in different guilds. These were doubtless attributable to autocorrelation as a result of similar habitat preferences. Competition was therefore rejected as an organising force within the community.
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Minakawa, Noburu. "The dynamics of aquatic insect communities associated with salmon spawning /." Thesis, Connect to this title online; UW restricted, 1997. http://hdl.handle.net/1773/5496.

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Maia, Patricia Surama Parise. "Resistência de genótipos de palma de óleo (Elaeis guineensis Jacq.) ao ataque de Opsiphanes invirae Hübner, 1808 (lepidoptera : nymphalidae) no Estado do Pará /." Jaboticabal, 2016. http://hdl.handle.net/11449/139437.

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Orientador: Arlindo Leal Boiça Junior
Coorientador: Ivan Carlos Fernandes Martins
Banca: Antonio Carlos Busoli
Banca: José Carlos Barbosa
Banca: Valter Arthur
Banca: José Roberto Scarpellini
Resumo: A presente pesquisa teve por objetivos estabelecer uma metodologia para criação de O. invirae e identificar genótipos de palma de óleo que apresentem fontes de resistência a esse inseto, nas categorias por não preferência para alimentação, antibiose e tolerância, sendo esta última baseada na produtividade após simulação de desfolha nas plantas. Os experimentos foram conduzidos em laboratório, exceto o teste de tolerância, o qual foi em condições de campo. Para a metodologia de criação, as lagartas foram criadas individualmente em placas de Petri até o quarto ínstar e posteriormente transferidas para recipientes maiores onde permaneceram até a emergência dos adultos. Foram utilizados 5 genótipos de palma de óleo para os testes de não preferência para alimentação, antibiose e tolerância, quais sejam: Deli x LaMe tratamento testemunha, Compacta x Ekona; Deli x Ekona; Compacta x Nigéria e Compacta x Ghana. Os testes com e sem chance de escolha, foram realizados com lagartas de O. invirae recém-eclodidas e com 12 dias de idade. Foram avaliados o consumo e a atratividade a 1, 3, 5, 10, 15 e 30 minutos e 1, 2, 6, 12, 24, 48 e 72 horas, após a liberação dos insetos. No teste de antibiose, as lagartas de O. invirae foram alimentadas com folíolos dos cinco genótipos até o final da fase larval. No teste de tolerância, os genótipos foram submetidos a desfolha simulada, ou seja, 0%, 25%, 50%, 75% e 100%. Avaliando a produção por 14 meses após a desfolha. O ciclo de vida desde o ovo até a ... (Resumo completo, clicar acesso eletrônico abaixo)
Abstract: This research aimed to establish a methodology for creating O. invirae and identify genotypes palm oil presenting this insect resistance sources in the categories by not feeding preference, antibiosis and tolerance, the latter being based on productivity simulation after defoliation in plants. The experiments were conducted in the laboratory, but the tolerance test, which was under field conditions. For the creation of methodology, the caterpillars were reared individually in Petri dishes until the fourth instar and then transferred to larger containers where they remained until the emergence of adults. 5 oil palm genotypes were used for the test no preference for food, antibiosis and tolerance, which are: Deli x Lame control treatment, Compact x Ekona; Deli x Ekona; Compact x Nigeria and Compact x Ghana. The tests with and without choice, were carried out with crawler O. invirae newly hatched and 12 days old. They were evaluated consumption and attractiveness to 1, 3, 5, 10, 15 and 30 minutes and 1, 2, 6, 12, 24, 48 and 72 hours after the release of the insects. In antibiosis test, Crawler O. invirae were fed leaflets of the five genotypes by the end of the larval stage. In the tolerance test, the genotypes were simulated peeling, is, 0%, 25%, 50%, 75% and 100%. Evaluating production for 14 months after defoliation. The life cycle from egg to the emergence of O. invirae adult was completed in 64.59 days. In the test free choice, the most attractive genotypes were Compacta x ... (Complete abstract click electronic access below)
Doutor
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Burkett, Nathan Daniel Mullen Gary R. "Comparative study of gravid-trap infusions for capturing blood-fed mosquitoes (diptera : culicidae) of the genera Aedes, Ochlerotatus, and Culex." Auburn, Ala., 2005. http://repo.lib.auburn.edu/2005%20Summer/master's/BURKETT_NATHAN_18.pdf.

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Higgins, Charlene J. "Spatial distribution and reproductive biology of western flower thrips, Frankliniella occidentalis (Pergande) (Thysanoptera : Thripidae)." Thesis, University of British Columbia, 1991. http://hdl.handle.net/2429/29873.

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Western flower thrips (WFT), Frankliniella occidentalis (Pergande), are haplodiploids. Virgin females produce sons parthenogenetically but must be mated to produce daughters. As a result, primary and secondary (adult) sex ratios can diverge from the 1:1 ratio commonly observed in diploid systems. Field studies were conducted to examine the spatial distribution of WFT on two greenhouse crops, Bell peppers, Capsicum annuum (Linn.) and Long English cucumbers, Cucumis sativus (Linn.) to determine if there was a correlation between sex ratio and density. Leaf and flower samples were taken weekly. All adult and immature WFT were counted and sex of adults determined. Yellow sticky traps were used to monitor density and sex ratio of the dispersing adult population. Lab studies were also done to investigate if male availability affected the sex ratio and number of offspring produced by individual females. Laboratory experiments were done to assess the effects of sperm availability and maternal age on sex ratio of progeny produced. On both crops, 84 to 95 % of adult WFT in flowers were females and most larvae (> 85 %) were found on leaves. Male WFT were rare on all plant parts even when caught in high numbers on traps. Approximately 75 % of females found on plants in the greenhouse were mated. Most (70 - 90 %) WFT on traps at low densities (< 200 individuals/trap) were males. This suggests that WFT populations are initiated by virgin females that likely overwintered as pseudopupae in the greenhouse. These females initially produce only sons, and may have to wait for these to emerge before they mate and produce daughters. As WFT density within a greenhouse increases, females are probably mated soon after emergence. Sex ratio of adults on traps becomes more female biased as density increases within a greenhouse. Heavily female biased (> 65 %) sex ratios were found on traps at high population densities (> 200 individuals/trap). Sex ratio of adults on traps remained male biased in the pepper greenhouse (WL) where the population density of WFT remained low. Information regarding within-plant distribution of thrips is essential for population monitoring and control. Used together, regular examination of flowers and counts of adults on sticky traps allow quick detection of potential "hot spots" of WFT density. Sex ratio and density are highly correlated. Sex ratio of the dispersing adult population is a good predictor of outbreak potential of the extant WFT population. Two WFT predators found in greenhouses were also monitored to document their effects on WFT population density and sex ratio. Mass introductions of the predatory mite, Amblysieus cucumeris, did not successfully control WFT in most greenhouses monitored. A natural infestation of pirate bugs, Orius tristicolor occurred in the only pepper house monitored. WFT density remained low throughout the growing season. O. tristicolor shows promise for future use in integrated pest management programs designed to control F. occidentalis in commercial greenhouses. Lab studies showed that sex ratio of offspring produced by mated females was influenced by sperm supply and maternal age. Mated females produced sons and daughters which suggests that females control sex of offspring produced through selective fertilization. Once mated, two-thirds of offspring produced are females. Older females produced fewer daughters than younger females. A principle conclusion from this study is that sex ratio of the WFT population within a greenhouse can be used to predict future population dynamics. Male availability may be the most important factor affecting the number of daughters produced by individual females which in turn may determine the potential of WFT populations to increase.
Science, Faculty of
Zoology, Department of
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Books on the topic "Insect; Insects"

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Nijhout, H. Frederik. Insect hormones. Princeton, N.J: Princeton University Press, 1994.

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Paige, Joy. The stick insect: World's longest insect = El insecto palo : el insecto más largo del mundo. New York: PowerKids Press & Buenas Letras, 2003.

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Colloque international sur les perspectives de recherche biologique et chimique dans le cadre de la lutte anti-acridienne (1989 Rabat, Maroc). La Lutte anti-acridienne. Paris: John Libbey Eurotext, 1991.

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Kaspar, Anna. What's an insect? =: Qué es un insecto? New York: PowerKids Press, 2012.

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Fichter, George S. Insect pests. New York: Golden Press, 1987.

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Canizares, Susan. What is an insect? =: Qué es un insecto? New York: Scholastic, 2003.

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Jobin, L. J. The Luminoc insect trap. Sainte-Foy, Quebec: Forestry Canada, Quebec Region, 1992.

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Insect virology. Norfolk, UK: Caister Academic, 2010.

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Price, Peter W. Insect ecology. 3rd ed. New York: Wiley, 1997.

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Insect outbreaks revisited. Chichester, West Sussex, UK: John Wiley & Sons, 2012.

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Book chapters on the topic "Insect; Insects"

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Oonincx, Dennis G. A. B. "Environmental impact of insect rearing." In Insects as animal feed: novel ingredients for use in pet, aquaculture and livestock diets, 53–59. Wallingford: CABI, 2021. http://dx.doi.org/10.1079/9781789245929.0007.

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Abstract This chapter discusses the environmental impact of insect rearing. Direct greenhouse gas (GHG) emissions from insects used as feed or food are discussed and data from life cycle assessments (LCAs) on commercially farmed insects are discussed per species. The relevance of the utilized feed on the environmental impact of insects and their derived products, including suggestions to lower this impact are also discussed. It is concluded that land use associated with insect production generally seems low, compared to conventional feed and food products. The EU (expressed as fossil fuel depletion) of insect production is often high compared to conventional products. To a large extent this is because several LCAs have been conducted for systems in temperate climates, which require extensive climate control.
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Bjone, Hanna, and Elaine C. Fitches. "Which insect species and why?" In Insects as animal feed: novel ingredients for use in pet, aquaculture and livestock diets, 8–16. Wallingford: CABI, 2021. http://dx.doi.org/10.1079/9781789245929.0002.

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Abstract This chapter describes the common features determining the suitability of insects for small- and industrial-scale farming, the main insect species currently being produced on a large scale for feed production and other potential candidate species. Natural consumption of insects by animals and which insects are suitable for which animal feed is also briefly discussed.
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New, Tim R. "Alien Insects and Insect Conservation." In Alien Species and Insect Conservation, 129–74. Cham: Springer International Publishing, 2016. http://dx.doi.org/10.1007/978-3-319-38774-1_6.

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Rumpold, Birgit A. "Global consumer perception of insects as feed." In Insects as animal feed: novel ingredients for use in pet, aquaculture and livestock diets, 116–25. Wallingford: CABI, 2021. http://dx.doi.org/10.1079/9781789245929.0015.

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Abstract This chapter provides a global overview of farmers' and stakeholders' as well as consumers' perception of insect-based feeds from the literature and discusses gaps, lessons learnt and future needs in order to improve the acceptance of insects as feed, as well as the acceptance of meat and fish fed with insect containing feed.
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Heckmann, Lars-Henrik Lau. "Closing the loop with industrial insect farming." In Insects as animal feed: novel ingredients for use in pet, aquaculture and livestock diets, 39–44. Wallingford: CABI, 2021. http://dx.doi.org/10.1079/9781789245929.0005.

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Abstract This chapter describes the circular economy and industrial insect farming, opportunities and challenges of utilizing organic wastes in an industrial setting and insects as valorizers of organic wastes.
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Govorushko, Sergey. "Use of Insects in Technology (Insect Bionics)." In Human–Insect Interactions, 47–62. Boca Raton, FL : CRC Press, 2017. | “A science publishers book.”: CRC Press, 2018. http://dx.doi.org/10.1201/9781315119915-5.

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Gorb, Stanislav N. "Insect-Inspired Technologies: Insects as a Source for Biomimetics." In Insect Biotechnology, 241–64. Dordrecht: Springer Netherlands, 2010. http://dx.doi.org/10.1007/978-90-481-9641-8_13.

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Berryman, Alan A. "Forest Insect Pests." In Forest Insects, 17–30. Boston, MA: Springer US, 1986. http://dx.doi.org/10.1007/978-1-4684-5080-4_2.

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Culver, David C., and Tanja Pipan. "Insects in Caves." In Insect Biodiversity, 123–52. Chichester, UK: John Wiley & Sons, Ltd, 2018. http://dx.doi.org/10.1002/9781118945582.ch6.

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Shea, Patrick J. "Use of Insect Pheromones To Manage Forest Insects." In Biorational Pest Control Agents, 272–83. Washington, DC: American Chemical Society, 1995. http://dx.doi.org/10.1021/bk-1995-0595.ch020.

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Conference papers on the topic "Insect; Insects"

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Han, Jong-seob, Jae-Hung Han, and Jo Won Chang. "Experimental Study on the Forward Flight of the Hawkmoth Using the Dynamically Scaled-Up Robotic Model." In ASME/JSME/KSME 2015 Joint Fluids Engineering Conference. American Society of Mechanical Engineers, 2015. http://dx.doi.org/10.1115/ajkfluids2015-04425.

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DARPA’s MAV project has accelerated a lot of studies on insect flights to gain insights for flapping MAV development [1]. In particular, the insects adept at hovering have become major subjects of these investigations [2–3]. Due to the great contributions by pioneers, we are now able to well explain how the insects produce the enhanced aerodynamic forces in the hovering flight at intricate flow regime [4].
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Badamdorj, B. "DIVERSITY OF INSECTS AND OTHER ARTHROPODS IN MONGOLIA." In V International Scientific Conference CONCEPTUAL AND APPLIED ASPECTS OF INVERTEBRATE SCIENTIFIC RESEARCH AND BIOLOGICAL EDUCATION. Tomsk State University Press, 2020. http://dx.doi.org/10.17223/978-5-94621-931-0-2020-5.

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The insect fauna of Mongolia includes about 12,000 species belonging to 24 orders. The only order, Orthoptera, is richer in species in Mongolia than in the Far East of Russia. All other units show greater diversity in the Russian Far East than in Mongolia. There are a significant number of very interesting endemics. Tizanuras of the family Machilidae are relic insects, represented by five species in Mongolia. As examples of widespread Central Asian insects, a number of species of darkling beetles and weevils can be indicated, most of which are endemic to Mongolia or Central Asia.
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Bedoya, Julian, and Diana M. Rincon. "Wing Geometry and Dynamic Similarity in Insect Flight." In ASME 2002 International Mechanical Engineering Congress and Exposition. ASMEDC, 2002. http://dx.doi.org/10.1115/imece2002-32283.

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The study of insect and bird flight has always been a curiosity, but it is yet to be described as plentifully as fixed wing aerodynamics. The United States military has expressed an interest in this topic, providing some institutions with funding. The main intention for this type of research is to develop small robots resembling insects or birds for use in exploration, surveillance and intelligence. While conceptually these applications could be accomplished with fixed-wing aircraft, there is a tremendous lack of stealth in these vehicles. The velocities associated with the required lift forces for small flapping-wing insect flights are significantly smaller than for insect-size fixed-wing aircraft. Therefore, it is more feasible and practical to aim for flapping wing flight.
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Gaylord, Monica L. "Emerging forest insect management issues in the Southwestern US: Insects, droughts, and megafires." In 2016 International Congress of Entomology. Entomological Society of America, 2016. http://dx.doi.org/10.1603/ice.2016.93527.

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Pachkin, A. A., O. Y. Kremneva, and M. V. Ivanisova. "TESTING A LIGHT TRAP WITH A SEPARATING INSECT RECEIVER ON A SUNFLOWER." In STATE AND DEVELOPMENT PROSPECTS OF AGRIBUSINESS. DSTU-PRINT, 2020. http://dx.doi.org/10.23947/interagro.2020.1.215-218.

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The results of using an aspiration light trap for the mass capture of insects in the sunflower agrocenosis are presented. Its high efficiency in capturing phytophages (Lepidoptera; Noctuidae) has been shown.In the period of 3-5 days, the trap was caught up to 600-800 individuals. The effectiveness of using a separating insect receiver is revealed. The use of separation has reduced the capture of useful and indifferent entomofauna by 52 times. During the experiment, massive oviposition of various species of scoops was noted in the cavity of the insect receiver
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Chung, Aram J., and David Erickson. "Microfluidic Control of Insect Locomotor Activity." In ASME 2008 International Mechanical Engineering Congress and Exposition. ASMEDC, 2008. http://dx.doi.org/10.1115/imece2008-67772.

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This work describes the intimate fusion of microsystems and physiology though the partial implantation of a microfluidic device into living insects, Manduca Sexta moth. This effort is a critical component in our development of “Insect-Micro Air Vehicles (I-MAVs)” which aim to fuse nanodevice technology with living organism. The specific goal of this system is to provide “on-command” chemically induced immobilization and subsequent reanimation of the otherwise autonomous insect by implanting a low power electrokinetic drug delivery device. In this paper, we demonstrate the locomotor activity control by releasing neurotransmitters into wing muscles. We also provide results of our fully functioning adult survivability data for pupal stage implanted microdevices along with results from a comprehensive study of a low power electroactive drug delivery system.
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Gevorkyan, I. S. "APPLICATION OF THE IONIZING RADIATION IN THE PEST CONTROL." In V International Scientific Conference CONCEPTUAL AND APPLIED ASPECTS OF INVERTEBRATE SCIENTIFIC RESEARCH AND BIOLOGICAL EDUCATION. Tomsk State University Press, 2020. http://dx.doi.org/10.17223/978-5-94621-931-0-2020-67.

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The article briefly discusses the available and existing methods of control of insects-pests of grain reserves and food products. The author concludes about the preferences of the grain reserves irradiation by ionizing radiation. The author points out that to actual date, have been experimentally determined such doses of ionizing radiation, which sterilize or kill the most common insect pests. However, the data obtained are still not enough to organize a wide and comprehensive application of ionizing radiation in pest control. Therefore, it is necessary to conduct further in-depth and comprehensive experimental studies of the sensitivity of all types of insect pests to ionizing radiation in order to justify the optimal conditions and modes of irradiation of agricultural and food products. Accumulation of experimental material will allow to study more deeply the reasons and mechanisms of infringement of vital functions of an organism of insects-wreckers under the influence of ionizing radiation, and, thereby, to provide successful fight against these wreckers of stocks.
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Gorb, E., N. Hosoda, and S. Gorb. "Nano-Porous Substrates Reduce Beetle Attachment Force." In ASME 2008 9th Biennial Conference on Engineering Systems Design and Analysis. ASMEDC, 2008. http://dx.doi.org/10.1115/esda2008-59173.

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Traction experiments with the seven-spotted ladybird beetles Coccinella septempunctata (L.) (Coleoptera, Coccinellidae) were carried out to study the influence of surface structure on insect attachment. Force measurements were performed with tethered walking insects using a load cell force transducer. For each beetle, forces were measured on five different substrates: (1) smooth glass plate; (2) smooth solid Al2O3 (sapphire) disc; (3 – 5) porous Al2O3 discs (anodiscs, back side) with the same pore diameter (220 – 235 nm), but different porosity (28, 42 and 51%). Males (N = 10) and females (N = 10) were used in experiments (10 single runs on each surface). Additionally, inversion tests were performed after each traction force measurement. The force ranged from 0.368 to 10.370 mN in males and from 0.514 to 6.262 mN in females. In both sexes, the highest force values were obtained on the smooth glass and sapphire surfaces, where males generated considerably higher forces compared to females. On all three porous substrates, forces were significantly reduced in both males and females, and the only difference for surfaces was obtained between two extremes: anodiscs with the highest (51%) and lowest (28%) porosity. Males produced essentially lower forces than females on anodiscs samples. Experimental insects performed well and showed normal locomotion on both smooth surfaces. On all anodiscs samples, beetles usually were not able to get a grip and slid over the surface, refused to walk and came to a standstill or even turned over on their backs. When substrates were inverted to 90° and 180°, insects were still able to remain attached to both the glass and sapphire samples, but failed on anodiscs. The reduction of insect attachment on anodiscs surfaces is explained by (1) possible absorption of the secretory fluid from insect pads by porous media and (2) effect of surface roughness.
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Becker, Winston R., Matthew R. Webster, and Raffaella De Vita. "Variability in Mechanical Properties of Insect Tracheal Tubes." In ASME 2013 Summer Bioengineering Conference. American Society of Mechanical Engineers, 2013. http://dx.doi.org/10.1115/sbc2013-14803.

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Insects employ a network of tracheal tubes to transport oxygen directly to every cell of the body. During respiration, these tubes undergo localized and rhythmic deformations due to local variation in their structural and mechanical properties. In order to elucidate the mechanisms of insect respiration, mechanical tests on ring sections of tracheal tubes extracted from American Cockroaches were conducted. A total of 33 specimens collected from 14 tracheal tubes located in the upper thorax of the insects were successfully tested. The ultimate tensile strength (22.6 ± 13.3 MPa), ultimate strain (1.57 ± 0.68 %), elastic modulus (1740 ± 840 MPa), and toughness (0.175 ± 0.156 MJm −3) were measured in the radial direction. The mechanical properties of ring sections excised from the same tracheal tube were shown to exhibit less variability than those of ring sections excised from different tracheal tubes. The results of this study will help in determining the relationship between the mechanics and structure of tracheal tube thus ultimately leading to the creation of novel bio-inspired micro-systems.
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Hsu, Shih-Jung, Yagız Efe Bayiz, Pan Liu, and Bo Cheng. "An Insect Tether System Using Magnetic Levitation: Development, Analysis and Feedback Control." In ASME 2016 Dynamic Systems and Control Conference. American Society of Mechanical Engineers, 2016. http://dx.doi.org/10.1115/dscc2016-9767.

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Insect flight has gained wide interests in both biology and engineering communities in the past decades regarding its aerodynamics, sensing and flight control. However, studying insect flight experimentally remains a challenge in both free-flight and tethered-flight settings. In free flight experiments, due to highly unpredictable and fast flight behavior of flying insects, it is difficult to apply controlled sensory inputs to their flight system for system identification and modeling analyses. In tethered flight experiments, constrained whole body movement results in silenced proprioceptive feedback therefore breaks the flight control loop and does not reveal any flight dynamics. Therefore, this work aims to develop a novel insect tether system using magnetic levitation. Such a system magnetically fixes an insect in space but allows it to rotate freely about yaw axis with minimal interference from mechanical constraints. This paper presents the development, analysis and feedback control of this system and finally test its performance using a hawkmoth (Manduca Sexta). In addition, a system identification of the magnetic levitation system and detailed analysis in closed-loop stability and performance are provided. In the future, the insect tether system will be applied to study the insect flight aerodynamics, sensing and control.
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Reports on the topic "Insect; Insects"

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Gilmartin, Andrew. Insect Outlaws. CrossRef, October 2013. http://dx.doi.org/10.5555/ios.

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van Niekerk, T. G. C. M., and T. Veldkamp. Insects for turkeys. Wageningen: Wageningen Livestock Research, 2017. http://dx.doi.org/10.18174/424505.

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Licht, Mark A., and Wayne B. Roush. Insects and Disease Update. Ames: Iowa State University, Digital Repository, 2010. http://dx.doi.org/10.31274/farmprogressreports-180814-112.

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Licht, Mark A., Joel L. DeJong, and Wayne B. Roush. Insects and Disease Update. Ames: Iowa State University, Digital Repository, 2011. http://dx.doi.org/10.31274/farmprogressreports-180814-1248.

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Torres, Juan A. Insects of the Luquillo Mountains. New Orleans, LA: U.S. Department of Agriculture, Forest Service, Southern Forest Experiment Station, 1994. http://dx.doi.org/10.2737/so-gtr-105.

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Sane, Sanjay. Sensory Coordination of Insect Flight. Fort Belvoir, VA: Defense Technical Information Center, October 2010. http://dx.doi.org/10.21236/ada531998.

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Sane, Sanjay P. Sensory Coordination of Insect Flight. Fort Belvoir, VA: Defense Technical Information Center, December 2009. http://dx.doi.org/10.21236/ada512814.

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Licht, Mark A. Insects and Disease in 2007. Ames: Iowa State University, Digital Repository, 2008. http://dx.doi.org/10.31274/farmprogressreports-180814-1078.

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Vernooij, A. G., T. Veldkamp, and Asaah Ndambi. Insects for Africa : developing business opportunities for insects in animal feed in Eastern Africa. Wageningen: Wageningen Livestock Research, 2019. http://dx.doi.org/10.18174/470617.

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Force, Don C. Ecology of insects in California chaparral. Berkeley, CA: U.S. Department of Agriculture, Forest Service, Pacific Southwest Research Station, 1990. http://dx.doi.org/10.2737/psw-rp-201.

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