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 8 of 8 for “"habitat filtering"”.
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Phylogenetic and Morphological Community Structure of North American Desert Bats
… made up of similar species may be structured by habitat filtering, wherein only species with traits necessary to survive in a particular location are found there. Communities made up of dissimilar species may have been structured by competition, which reduces overlap in resource use. I examined …
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Diversity and biogeography of Madagascan bryophytes with an analysis of taxic and functional diversity along an elevational gradient in Marojejy National Park
… their abiotic and biotic environments and how habitat filtering and niche differentiation influence bryophyte assemblages along an elevational gradient. The bryoflora of Madagascar, with its 1188 species and infraspecific taxa is relatively rich and highly diversified. Along the Marojejy …
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Seasonal dynamics of edaphic bacterial communities in the hyper-arid Namib desert
… communities were found to be more similar within habitats than between habitats, with the differences likely shaped by soil pH. These findings are consistent with the concept of habitat filtering. Investigation of edaphic bacterial communities over 1 year in an 8100 m2 sampling site revealed …
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Spatial models of plant diversity and plant functional traits : towards a better understanding of plant community dynamics in fragmented landscapes
The fragmentation of natural habitat caused by anthropogenic land use changes is one of the main drivers of the current rapid loss of biodiversity. In face of this threat, ecological research needs to provide predictions of communities' responses to fragmentation as a prerequisite for the effective …
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Phylogenetic Analyses of Andean and Amazonian Tree Communities in Ecuador
… affecting the tree community structure in these habitats. The goal of this research was to evaluate the magnitude ofDNA barcode diversity among Amazonian and Andean tree species. Specifically, the objectives were to (1) evaluate community phylogenetic structure and correlate phylogenetic analyses …
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Patterns of temporal changes in species composition and diversity in island ecosystems
… comprised of 26 functional traits (vegetative, habitat-related and reproductive) for each recorded taxon, collected from databases and bibliography. More specifically, this thesis examines the distribution of both plant communities and habitat types as well as temporal changes in vegetation …
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Spatial variation in small mammal communities across the Karoo Shale Gas Development Area of South Africa
… This suggests that environmental and niche filtering are significant proximate factors shaping small mammal assemblages. No significant effects of biotic interactions (particularly competition following Diamond's (1975) first two rules) or resource-mediated niche limitations were evident for …
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The population and community ecology of small freshwater ponds: Assigning process to pattern
… and community structures can arise in similar habitats when colonization history differs. For example, early colonists may hinder, inhibit, or in some cases facilitate colonization by later arriving taxa by altering the suitability of a habitat, especially in actively dispersing organisms. The …