Global ETD Search
Search theses and dissertations gathered from participating repositories worldwide. Every result links back to the library that holds it. No account is needed.
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Showing 1 to 20 of 1098 for “"Insects"”.
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Insects as Bio-Indicators
… (Cal Academy) that highlights the use of insects as bioindicators and bio-monitors for environmental and climate change. This project includes the creation of a road map for the development of a docent facilitated Multi-User Simulation with Handheld Integration (MUSHI) interactive for the …
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FUTURE FEED: FEEDING BY-PRODUCTS TO INSECTS AND INSECTS DERIVED PRODUCTS TO ANIMALS
… understand the nutritional requirements of insects and the implications of rearing conditions on their composition and subsequent use in animal diets. The present study was conducted with the objective of evaluating the influence of modifications of insect substrates on growth performance, …
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The sea of wise insects
Includes abstract.
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Small RNA-based antiviral defense in insects
Contains fulltext : 131645.pdf (Publisher’s version ) (Open Access)
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Taphonomy of pigmentary colours in fossil insects
Extant insects are renowned for the striking colouration displayed in their cuticles. Although fossil insects are abundant and the patternings in their cuticles highly resemble those found in extant insects, these are commonly monotonal, especially in those insects preserved across deep geological …
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The evolution of parental care in insects
… history. Consistent with theory, early insects had no care, and their descendants evolved either male care, or female care followed sometimes by biparental care. Secondly, I investigate parental care trade-offs. I find that in insects, care is associated positively with offspring …
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Insects and other major arthropods of tallgrass prairie
Digitized by Kansas Correctional Industries
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Insects and other major arthropods of tallgrass prairie
Digitized by Kansas Correctional Industries
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Aquatic insects versus fish: adaptations to fish predation
v češtině Tato bakalářská práce je rešerší dostupných zdrojů o adaptacích vodního hmyzu vůči rybí predaci během všech fází jejich vývoje. Vzhledem k tomu, že je vodní hmyz velká skupina často si nepodobných druhů, je vodní hmyz jako takový na úvod této práce představen, včetně prostředí, ve kterém …
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Organophosphorous insecticide contamination in streams: Insects as bioindicators
1 PDF file (xii, 171 pages)
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Evolution of caudal translational repression in higher insects
Der anterior lokalisierte Entwicklungsfaktor bicoid (bcd) steuert the translationale Repression von caudal (cad) in Drosophila Embryos. Das bcd Gen kommt im Gegensatz zu cad nur in einer abgeleiteten Gruppe von Diptera vor. Die Expression von cad in anderen Insektenarten muss daher auf andere Weise …
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Adhesive and frictional tarsal pads in stick insects
Insects rely on specialized attachment systems to adhere to and move across substrates. For this purpose, stick insects (Phasmatodea) employ two types of smooth attachment pads on their tarsi: the pretarsal arolium, responsible for adhesion, and the tarsal euplantulae, generating friction. These …
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Enzymatic defenses against plant phototoxins in phytophagous insects
Enzymatic defenses of phytophagous insects against two biosynthetically distinct types of plant phototoxins, furanocoumarins and $\beta$-carboline alkaloid, which are known to produce toxic oxygen species, were studied. Questions raised for the study were (1) Are antioxidant enzyme activity levels …
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Descending premotor target tracking systems in flying insects
… innate and highly stereotyped. Predatory flying insects present an extreme example, performing complex visually-guided pursuits of small, often fast flying prey over extremely small timescales. Furthermore, this behaviour is controlled by a tiny nervous system, leading to pressure on neuronal …
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Biomechanics of the fibrillar adhesive system in insects
… Gastrophysa viridula and smooth pads of stick insects (Carausius morosus) was compared. Adhesive and frictional stresses were found to be similar in smooth and hairy pads, inconsistent with contact splitting theory, which predicts higher adhesive stresses for fibrillar adhesives. Hairy pads …
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The hydrodynamics of water-walking insects and spiders
… mechanisms employed by water-walking arthropods (insects and spiders). In our experimental study, high speed cinematography and flow visualization techniques are used to determine the form of the flows generated by water-walkers. In our supporting theoretical study we provide a formal fluid …
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