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.
Results
Showing 1 to 13 of 13 for “"sensory ecology"”.
-
Sensory Ecology of Foraging in Bumblebees
… mechanisms of this behavior, however, the sensory-perceptual processes that constrain such behavior have rarely been considered. In the present study I used bumblebees (Bombus terrestris), an important pollinating insect, to investigate possible sensory constraints on foraging behavior. …
-
The sensory ecology of yellow warbler referential alarm calls
Submission original under an indefinite embargo labeled 'Open Access'. The submission was exported from vireo on 2022-11-15 without embargo terms
-
Sensory Ecology of Carbon Dioxide Perception in Leaf-cutting Ants
The study examines the sensory ecology of CO2 perception in leaf-cutting ants. It begins with the ecological role of CO2 for leaf-cutting ants. Inside the subterranean nests of Atta vollenweideri large amounts of CO2 are produced by the ants and their symbiotic fungus. Measurements in field nest at …
-
The natural history, sensory ecology and biogeography of the seed dispersal of large fruits in Fynbos
… of herbivore dung and exploits the olfactory sensory perception of dung beetles, which rolled and buried the seeds. The semi-fleshy fruits of the rock-restricted Heeria argentea were dispersed by the mutualistic M. namaquensis, which consumed only the pericarp, allowing for germination, as …
-
Primate-Plant Interactions in the Tropical Dry Forests of Northwestern Madagascar: Seed Dispersal and Sensory Ecology of Eulemur fulvus.
Fruiting plants and frugivores are involved in a complex set of interactions. Frugivores rely on fruiting plants as critical food resources, while fruiting plants rely on frugivores for seed dispersal services. Here, I measure the interrelatedness of brown lemurs (Eulemur fulvus) and the endemic …
-
Sensory divergence among populations of a southern African endemic horseshoe bat (Chiroptera: Rhinolophidae ): a multidisciplinary approach
… approach combining the methods of sensory ecology, functional morphology, population genetics and functional genetics was used to explore the relative roles of neutral and adaptive processes in the evolution of sensory divergence in Cape horseshoe bats, Rhinolophus capensis. …
-
Behavioural and ecological interactions between Heliconius butterflies, their predators and host plants
… adapted for different receivers. Here, I combine sensory ecology with behavioural ecology to explain Heliconius colours signals of different co-mimic pairs. I explore how mimicry in Heliconius is perceived both from the perspective of predators and conspecifics, using visual abilities of both …
-
The role of sound and sociability in the success of invasive lionfish (Pterois spp.)
Animals use sensory information to guide a range of behaviours such as foraging, navigating, avoiding predators, and interacting with conspecifics. When invasive species are introduced into novel environments, however, they may face “information landscapes” different to those experienced in their …
-
The role of individual variation in auditory and visual processing: implications for mate choice
… exchange of courtship signals in different sensory modalities. My work focuses on understanding the factors that contribute to variation in male sexual signals and variation in female sensory perception and behavioral responses to these signals. I addressed several specific research …
-
Artificial Night Lighting and Anthropogenic Noise Alter Animal Activity, Body Condition, Species Richness, and Community Structure
<p>Sensory pollution from artificial night-lighting and anthropogenic noise have increased at a dramatic rate over the last several decades. Alterations to the sensory environment have been found to affect wildlife in a wide variety of ways including behavioral changes, physiological responses, …
-
Characterizing the Role of Magnetic Cues Underlying Spatial Behavior
In the 50+ years since the discovery of magnetic compass orientation by migratory songbirds, evidence for the use of magnetic cues has been obtained for a range of taxonomic groups, including several classes of vertebrate and invertebrate taxa. Surprisingly, however, the biophysical mechanisms and …
-
Flexibility in extended phenotype sexual signals in great bowerbirds, Chlamydera nuchalis
Males employ a range of traits to signal their quality to attract mates, some of which can be very elaborate. Some individuals signal their quality via an extended phenotype display (an expression of their quality separate from their body). Signallers must adapt their sexual signals following …
-
Intrasexual selection and warning color evolution in an aposematic poison dart frog
Flamboyant colors are widespread throughout the animal kingdom. While many of these traits arise through sexual selection, bright coloration can also evolve through natural selection. Many aposematic species, for example, use conspicuous warning coloration to communicate their noxiousness to …