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Full-Text Articles in Ecology and Evolutionary Biology
Genetic And Morphological Variation Of Butterflies In Relict Habitats, Lindsay A. Crawford
Genetic And Morphological Variation Of Butterflies In Relict Habitats, Lindsay A. Crawford
Electronic Thesis and Dissertation Repository
Habitat fragmentation and loss are leading threats to global biodiversity and can alter patterns of dispersal, population dynamics, and genetics with implications for long-term species persistence. Most habitat fragmentation research has focused on recently fragmented species that historically occupied interconnected habitat patches. We know comparatively little about how naturally fragmented species may respond to habitat loss. For these species, local habitat patch quality may influence the dynamics and genetics of populations more than the structure of the surrounding landscape (e.g., degree of isolation of suitable habitat). I examined aspects of the ecology and evolution of populations inhabiting fragmented landscapes, using …
The Plastic And Evolutionary Responses Of Fish To Anthropogenic Stressors, Ross D. Breckels
The Plastic And Evolutionary Responses Of Fish To Anthropogenic Stressors, Ross D. Breckels
Electronic Thesis and Dissertation Repository
Ecosystems are being altered at unprecedented rates with little knowledge of the potential impacts on biodiversity. Two of the most pressing contemporary anthropogenic stressors are pollution and global warming. Species can respond to these stressors via dispersal, phenotypic plasticity, or evolutionary adaptation. Many species, especially aquatic organisms, experience ecological or physical barriers to dispersal and will therefore have to respond via phenotypic plasticity or evolutionary responses. I examined the responses of multiple traits associated with fitness in fish to pollution and increased temperature using a 2 × 2 common garden experimental design. I examined the effects of pollution on behaviour …