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 10 of 10 for “"Wing Morphology"”.
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The behaviour and wing morphology of the meadow brown butterfly (Maniola jurtina L.) in Britain : the influence of weather and location
… Scotland, and to determine whether variation in wing morphology is adaptive in terms of thermoregulatory efficiency. Temperature, solar radiation and wind speed were recorded simultaneously with timed behavioural observations, which were made on transect walks and whilst following individual …
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Structure of an Ensemble of Insectivorous Bats
… behavioural and dietary partitioning including wing morphology, echolocation characteristics, flight behaviour, habitat use, and diet. Using acoustic arrays I compared activity patterns at different sites to determine temporal and spatial partitioning and generated flight paths to determine …
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Ecomorphological differences between sister species, Rhinolophus capensis and Rhinolophus swinnyi
… these species, I examine differences in the ecomorphology of these bats in their current distributions. R. capensis is bigger than R. swinnyi, with corresponding differences in echolocation call signatures and wing morphology.
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Spatial structuring in trait variation in Polyommatus icarus in a functional context
… within 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 …
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The Intricate Molecular Landscape of Insect Chemosensation: The Sensory Neuron Membrane Protein Gene Family
… severe behavioral deficits and an atypical wing morphology. Taken together, these results suggest SNMPs individually modulate the transmission of a range of socially relevant cues via smell and taste modalities in insects. In combination, SNMP-1 and SNMP-2 may contribute more broadly to …
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Adaptation to altitude in Heliconius butterflies
… genus. Firstly, using a collection of over 3500 wings I discovered that wing morphology varies predictably across elevations, with species and populations in the highlands having rounder wings than those in the lowlands. This study also highlighted that life-history, whether larvae are gregarious …
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Ecophysiology, Morphology and Phylogeography of Insects in the Scotia Arc
… to struggle much more to deal with saline water. Morphology: We hypothesised that the South Georgian isolate of the diving beetle Lancetes angusticollis, could have changes to its hind wing morphology, potentially causing a loss of the ability to fly. However, the wings bear only minute changes …
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Evolution of the ZRS and the Regulation of SHH Expression in the Forelimbs of Bats.
… and Rhinolophus clivosus (which have different wing shapes) was linked to a β-globin-LacZ reporter construct and used in transgenic mice experiments. A mouse ZRS with bat mutations as well as a wild type mouse ZRS (the control) were also tested. Transgenic results suggest that the bat ZRS has …
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Geographic variation in the echolocation calls of the endemic Cape horseshoe bat, Rhinolophus capensis (Chiroptera: Rhinolophidae)
… in echolocation calls of R. capensis. Body size, wing morphology and skull parameters associated with diet and echolocation call production and reception, were compared between populations. Adult R. capensis were sampled at three sites: De Hoop situated in the centre of the species distribution in …
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Discovering the Complex Aerodynamics of Flapping Flight with Bio-kinematics Using Boltzmann and Eulerian Methods
The cross-sectional geometry of an insect wing has historically been simplified to a rectangular, elliptic, or having a streamlined airfoil shape. Up until this point, no analysis has utilized a morphologically accurate insect wing. As such, there remains significant questions as to whether or not …