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 “"Competition (Biology)"”.
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A quantitative model of density-dependent habitat selection: integrating isodar and isoleg theories
… calculated according to the Lotka-Volterra competition equations. Because fitness is assessed via growth rates, this model provides a more accurate representation of distribution patterns than do current models. The development of this model serves two purposes: (1) to permit the …
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Waterhole Dynamics and Chemical Signals of African Elephants (<i> Loxodonta Africana </i>)
… rare, suggesting the workings of interference competition by elephants. Intraspecific aggregation at waterholes can facilitate reproductive communication in elephants, often via chemical signals. This study also determined behaviorally via biological assays (June 2006-June 2007) whether four …
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Response of the Ozark Zigzag Salamander (Plethodon Angusticlavius) to High and Low Level Threats
Under most natural conditions, there is a trade-off between foraging efficiency and anitpredatory vigilance. This study examined the foraging tactics of the Ozark zigzag salamander (Plethodon angusticlavius) under low and high levels of threat. I predicted that the salamander would specialize on …
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Negative Effects Of ComMycorrhizal Networks And Roots On Upland Oak Seedlings In Open-Canopy Woodlands And Closed-Canopy Forests
… networks but isolated them from direct root competition. A subset of seedlings was trenched to disconnect them from the network. Response variables were relative growth rate of height and diameter, above and belowground biomass, root:shoot ratio, lateral root length, total number mycorrhizal …