Article

Dynamics of Age- and Stage-Structured Populations and Communities

Lennart Persson

in Ecology

ISBN: 9780199830060
Published online May 2012 | | DOI: http://dx.doi.org/10.1093/obo/9780199830060-0036
Dynamics of Age- and Stage-Structured Populations and Communities

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  • Applied Ecology (Environmental Science)
  • Ecology and Conservation
  • Plant Ecology
  • Zoology and Animal Sciences

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Most ecological models in contemporary ecological theory ignore the implications of age and particularly size variation in populations. This fact is also largely true for most empirical—experimental and nonexperimental—studies. This situation is in contrast to the fact that most organisms on earth undergo major changes in size and resource use over their life period. In fact, more than 80 percent of organisms of all taxa undergo major qualitative changes in their body morphology in the form of metamorphosis. Changes in size over ontogeny will generally mean that an individual will use different resource types and be exposed to changes in predator mortality over its life period. Although even early ecology books mentioned the presence of individual variation due to age or size, it is during the last thirty years that the implications of age and size variation have started to be systematically investigated. To some degree this belated interest can be attributed to the lack of appropriate modeling approaches. The different readings in this bibliography include general overviews, differences between age- and size-based formulations, maturation versus reproduction regulation, effects of age/stage variation on population dynamics and communities, and applications. The focus is on systems in which stage duration is flexible and dependent on food conditions.

Article.  10195 words. 

Subjects: Applied Ecology (Environmental Science) ; Ecology and Conservation ; Plant Ecology ; Zoology and Animal Sciences

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