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 13 of 13 for “"Thermal biology"”.
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Evolutionary physiology of New Zealand stick insects: A thermal biology approach
Temperature affects biology at all levels of organization, dictating what organisms can and cannot do. Ectotherms, especially those with limited dispersal capacity, are obligated to modify their physiology to cope with short- or long-term temperature changes through phenotypic plasticity or …
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Exploring Mosquito Thermal Biology and Chemical Ecology in the Context of Host-Seeking and Climate Change
… and techniques to bring novel insight into the biology and ecology of these mosquitoes. The first project focuses on the thermal preference and response to thermal cues of three Culex species which vary in host preference and climate of origin. The second project explores the effects of …
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Insights into the seasonal ecology and thermal biology of the lesser grain borer, Rhyzopertha dominica (Coleoptera: Bostrichidae)
… highlighting the need for continued research on thermal biology to guide postharvest pest management. In line with understanding how cold treatments can be used to manage R. dominica, the first objective examined R. dominica habitats beyond stored grain, to see whether this species uses specific …
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Thermal biology and behaviour of two predatory Phytoseiid mites: Amblyseius swirskii (Athias-Henriot) (Acari:Phytoseiidae) and Phytoseiulus longipes (Evans) (Acari:Phytoseiidae)
Amblyseius swirskii and Phytoseiulus longipes are targeted as biological control agents for the horticultural pest Tetranychus urticae. This study applies a standardised protocol to evaluate the risk of establishment of introduced species and investigates temperature related behavioural thresholds …
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The thermal biology of the growing broiler having access to a means of conductive heat transfer in a hot environment
Four studies were conducted to investigate the productive, behavioral and physiological performance of growing broilers provided water cooled perches as a means of conductive heat transfer in a hot ambient environment. All perches were constructed from steel pipe and cooling was achieved by …
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Understanding the thermal biology of macadamia nut borer, Thaumato(bia batrachopa (Meyrick) (Lepidoptera: Tortricidae): a pest of macadamia in South Africa
… the outcomes regarding developmental rates and thermal responses. Understanding the mechanisms through which the temperature affects T. batrachopa’s life stages should contribute to developing a model of the potenSal responses of this pest to climate change. Thermal biology studies should reveal …
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Thermal biology and establishment potential of two non-native candidate biological control agents, Nesidiocoris tenuis Reuter (Hemiptera: Miridae) and Lysiphlebus testaceipes (Cresson) (Hymenoptera: Braconidae, Aphidiinae), in the U.K.
… would be able to establish in northern Europe. Thermal activity threshold investigations also indicated that \(L.\) \(testaceipes\) would constitute an effective control agent for pest species with similar activity profiles to \(Aphis\) \(fabae\) Scop. (Hemiptera: Aphididae) under a range of …
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The Thermal Performance and Tolerance of Tropical cleaner shrimp (Lysmata amboinensis)
… traded organisms. Chapter two investigates the thermal performance and tolerance of the tropical cleaner shrimp (Lysmata amboinensis) under thermal warming and cooling scenarios, providing insight into how a tropical species of shrimp responds to thermal change. Overall, this species showed a …
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Spatial structuring in trait variation in Polyommatus icarus in a functional context
… and between population variation in morphology, thermal biology, and voltinism. These traits together with allozymes and a neutral DNA marker (AFLP) variation are studied here to understand how geographic trait variation is related to environmental variation. The approach adopted here is to study …
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Physiological and behavioral consequences of reptilian life in the slow lane: Ecology of beaded lizards and rattlesnakes.
… and energy they invest in activity, home ranges, thermal biology, habitat and other resource use, and behavior. I measured metabolic rates in the laboratory to determine rates of energy use. Beaded lizards had a mean home range of 21.6 ha, an activity peak at 1800 hrs and traveled, on average, …
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Ecological niche partitioning and resource utilization in two sympatric lacertid lizard species (Meroles anchietae and M. cuneirostris) from the Namib Desert
… Seasonal influence of fog on the morphology and thermal biology of populations of the two species was also examined. Sampling in winter was not considered because of low lizard activity, while sampling in summer was not possible due to logistical constraints. Mitochondrial cytochrome b gene …
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The thermal implications and ecological consequences of coloration in selected species : tenebrionid beetles (Onymacris bicolor and Onymacris ungui cularis), Cape gannets (Morus capensis) and Cape cormorants (Phalacrocorax capensis)
The thermal significance of coloration was investigated in two species of Namib Desert tenebrionid beetles and two species of marine birds. Body temperatures and heat fluxes of a black beetle (Onymacris unguicularis) and a beetle with white elytra (Onymacris bicolor) were compared in a wind tunnel …
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Thermal and Behavioral Ecology of the Mexican Beaded Lizard (Heloderma horridum)
… Small organisms have little or no appreciable thermal inertia, and thus, reach thermal equilibrium with their immediate surroundings relatively rapidly. In this investigation, we describe the behavioral and thermal ecology of the Mexican beaded lizard (<em>Heloderma horridum</em>), which …