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Predator-Prey - GaryTurnerScience
Predator-Prey - GaryTurnerScience

... niche, in the same place, at the same time • If there are 2 species with very similar requirements there are 2 outcomes: 1. One species out competes the other 2. Species undergo evolution and therefore occupy different niches. ...
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... Deer and other game never disperse themselves evenly. ...
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... that distinguishes it from all the other members of the species. Some of these characteristics make some individuals better able to survive than other members of their species. They are said to be better adapted to their environment. Thus, if conditions become harsh, those members of the species who ...
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... traffic mortality and increased predation are also important threats. A significant knowledge gap is that the complete distribution of the Common Five-lined Skink is not fully known. Other knowledge gaps include a lack of information on movements (habitat use, home range and dispersal), accurate pop ...
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... L < L∗ = π D/γ and no globally stable and attracting solutions otherwise (see Skellam [11]). However, the corresponding reaction dNdt(t) = γN (t) never has any globally stable and attracting solutions. In terms of population dynamics, this question can be framed in the context of questions of extinc ...
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Source–sink dynamics

Source–sink dynamics is a theoretical model used by ecologists to describe how variation in habitat quality may affect the population growth or decline of organisms.Since quality is likely to vary among patches of habitat, it is important to consider how a low quality patch might affect a population. In this model, organisms occupy two patches of habitat. One patch, the source, is a high quality habitat that on average allows the population to increase. The second patch, the sink, is very low quality habitat that, on its own, would not be able to support a population. However, if the excess of individuals produced in the source frequently moves to the sink, the sink population can persist indefinitely. Organisms are generally assumed to be able to distinguish between high and low quality habitat, and to prefer high quality habitat. However, ecological trap theory describes the reasons why organisms may actually prefer sink patches over source patches. Finally, the source-sink model implies that some habitat patches may be more important to the long-term survival of the population, and considering the presence of source-sink dynamics will help inform conservation decisions.
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