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 7 of 7 for “"hermit crab"”.
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Behavioral Evidence for "Contextual Decision Hierarchies" In the Hermit Crab, Pagurus samuelis
… perception influence the behavioral choices of hermit crabs. I began by reviewing behavioral experiments that have demonstrated the underlying sensory processing of visual, chemical, and tactile information in crustaceans and propose a novel behavior model entitled "Contextual Decision …
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Contributions to the taxonomy of South African hermit crabs (Crustacea: Decapoda: Paguroidea) – integrating microCT scanning and barcoding
Hermit crabs form an important component of the marine benthos and globally more than 1,200 species have been described. In the unique bioregion of South Africa, hermit crabs are poorly known, and the last taxonomic revision of the group was that of K. H. Barnard in 1950, who recorded only 32 …
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Baseline surveys and metal binding proteins as metal pollution indicators
… different organisms (crayfish, Jasus lalandii; hermit crab, Diogenes brevirostris; shrimp, Palaemon pacificus; black mussel, Choromytilus meridionalis and limpet, Patella granularis) kept under identical conditions and it was shown that a much more meaningful interpretation of the results could …
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Influence of reef-associated predators on adjacent soft-sediment communities
… were found in a few large-bodied fauna. The hermit crab Pagurus novizelandiae occurred more frequently near the reef edge, whilst the heart urchin Echinocardium cordatum and bivalve Dosinia subrosea were more abundant further away from the reef. Dosinia subrosea and another bivalve, Myadora …
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Investigating trade-offs in Strength, Skill and Vigour in Pagurus Bernhardus
… or other RHP traits. Using the European hermit crab Pagurus <br/>bernhardus, we investigated the relationship between three RHP traits: <br/>strength, vigour and skill. We identified a potential trade-off between strength <br/>and skill, indicating that individuals might have to choose …
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Towards informing a data-driven approach to marine bioregionalization in South Africa: a case study using benthic epifaunal datasets from the southern Benguela shelf
… of larger, highly motile Decapoda (e.g. the hermit crab Sympagurus dimorphous) and burrowing Asteroidea better than the towed camera. Though broad similarities in assemblage structure were evident between sampling methods, with high correlations found between important Co-CA axes (r = 0.93, …
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Effects of anthropogenic change on animal cognition and emotion
… pollution. Microplastic exposure prevented hermit crabs from approaching and entering a new shell, which was better than their current shell. These results suggest that microplastics disrupt animal cognition (resource assessment and evaluation). Finally, I apply emotion theory to animal …