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 9 of 9 for “"niche differences"”.
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Interactions, Heterogeneity, and the Determinants of Multispecies Coexistence
… that coexistence is possible when stabilising niche differences, which occur when intraspecific competition exceeds interspecific competition, outweigh fitness differences that favour one competitor over others. However, species typically engage in interactions that go beyond species pairs, …
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Seed and seedling ecology of four Agulhas Proteaceae
… were used to test whether regeneration niche requirements were determinants of adult distributions. There were no germination niche differences, but limestone species showed greater seedling mortality on the transplanted colluvial sands than limestone. There were also greater relative …
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Hermit Thrush (<em>Catharus guttatus</em>) and Veery (<em>C. fuscescens</em>) Breeding Habitat Associations in Southern Appalachian High-Elevation Forests.
… these species should remain low, as their niche differences brought to light in this study should enable them to breed in close proximity to each other in these high-elevation mountains.</p>
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Genomics and ecology of rapid adaptation: the expansion and evolution of the invasive common myna (<i>Acridotheres tristis</i>) and common starling (<i>Sturnus vulgaris</i>) in New Zealand
… I utilised ecological data to characterise the niches of both the common myna and common starling. For both species, I found no evidence of niche divergence between the native range and New Zealand, but evidence of niche differences between the two species in New Zealand. Future suitable …
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Developing dynamic energy budget (DEB) models for small pelagic fishes in the Southern Benguela
… The key hypothesis was that there would be niche differences among bioenergetic factors for the three species that allow them to cooccur. Models were created and calibrated using published information and survey data (recruitment, biomass, weight-at-length) from 2012-2016. Best visual fit …
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Ecological Niches, Species Distributions, And Biogeographic Processes In Rodents On Neotropical Sky Islands
… improvement of correlative ecological niche models (ENMs) to better understand the processes governing species distributions and associated evolutionary divergence in rodents inhabiting mesic conditions in the Neotropics. Focusing on a widespread rodent from northern South America …
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Ecological niche partitioning and resource utilization in two sympatric lacertid lizard species (Meroles anchietae and M. cuneirostris) from the Namib Desert
… one habitat requires divergence into one or more niche dimensions (i.e., spatial, temporal and trophic) to reduce competition. Coupled with a scarcity of resources, the Namib Desert is an arid ecosystem with a high lizard diversity and presents an ideal ecosystem to investigate niche partitioning …
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Dietary Shifts, Niche Relationships and Interspecific Competition in Sympatric Grey Langur (Semnopithecus entellus) and Purple-faced Langur (Trachypithecus vetulus) in Sri Lanka
Understanding how niche differences evolve in ecologically similar species and how these differences are maintained ecologically is a fundamental question in ecology. Interspecific competition has been shown to influence the behavior and ecology of organisms in a wide range of ecological …