The role of mammals as ecosystem landscapers.

Alces | January 1, 2003| | Copyright

ABSTRACT: The role of mammals in ecosystems is to modify vegetation structure, alter pathways of nutrients, and thereby change species composition. Their large-scale structuring effects make large mammals 'ecological landscapers'. Through this they influence ecosystem function and biodiversity. Landscaping effects occur when mammals are regulated by food, rather than by predators. This condition is constrained by four factors: when (1) body size is large enough to avoid predators; (2) populations adopt large scale migration behaviour because predators are unable to follow ...

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