The Theory of Ecological Communities.pdf

The Theory of Ecological Communities PDF

Mark Vellend

A plethora of different theories, models, and concepts make up the field of community ecology. Amid this vast body of work, is it possible to build one general theory of ecological communities ? What other scientific areas might serve as a guiding framework ? As it turns out, the core focus of community ecology - understanding patterns of diversity and composition of biological variants across space and time - is shared by evolutionary biology and its very coherent conceptual framework, population genetics theory. The Theory of Ecological Communities takes this as a starting point to pull together community ecologys various perspectives into a more unified whole. Mark Vellend builds a theory of ecological communities based on four overarching processes : selection among species, drift, dispersal, and speciation. These are analogues of the four central processes in population genetics theory - selection within species, drift, gene flow, and mutation - and together they subsume almost all of the many dozens of more specific models built to describe the dynamics of communities of interacting species. The result is a theory that allows the effects of many low-level processes, such as competition, facilitation, predation, disturbance, stress, succession, colonization, and local extinction to be understood as the underpinnings of high-level processes with widely applicable consequences for ecological communities. Reframing the numerous existing ideas in community ecology, The Theory of Ecological Communities provides a new way for thinking about biological composition and diversity.

The Theory of Ecological Communities (MPB-57) The Theory of Ecological Communities takes this as a starting point to pull together community ecology's various perspectives into a more unified whole. Mark Vellend builds a theory of ecological communities based on four overarching processes: selection among species, drift, dispersal, and speciation. These are analogues of the four central processes in population genetics theory—selection

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9780691164847 ISBN
The Theory of Ecological Communities.pdf

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Sofya Voigtuh

We develop a theory of competition based on two mechanisms that we call the cost of rarity (Mechanism R) and the cost of commonness (Mechanism C). These reduce the rate of population increase only at high densities (asexual organisms) or both at high and low densities (sexual species). The theory predicts that, in certain circumstances, the number of coexisting species in any assemblage will Community ecology theory as a biological invasions

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Mattio Müllers

06/09/2016 · The Theory of Ecological Communities takes this as a starting point to pull together community ecology's various perspectives into a more unified whole. Mark Vellend builds a theory of ecological communities based on four overarching processes: …

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Noels Schulzen

The Theory of Ecological Communities takes this as a starting point to pull together community ecology's various perspectives into a more unified whole. Mark Vellend builds a theory of ecological communities based on four overarching processes: selection among species, drift, dispersal, and speciation. These are analogues of the four central The theory of ecological communities (Book, 2016 ...

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Jason Leghmann

Apr 4, 2014 ... Perhaps the key question in ecology today is the degree to which the dynamics of ecological communities are comprehensible. All ecological ...

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Jessica Kolhmann

The Theory of Ecological Communities | NHBS … The Theory of Ecological Communities takes this as a starting point to pull together community ecology's various perspectives into a more unified whole. Mark Vellend builds a theory of ecological communities based on four overarching processes: selection among species, drift, dispersal, and speciation.