Plant Specialization to Environments of Different Resource Availability

  • E.-D. Schulze
  • F. S. ChapinIII
Part of the Ecological Studies book series (ECOLSTUD, volume 61)


Plants exert a major control over ecosystem processes, because they are the organisms through which carbon and nutrients enter the biota, and because plant parameters strongly influence the fluxes through ecosystems. Plants operate under certain rules of cost and benefit under which they adjust their rates of resource acquisition and patterns of resource partitioning (Orians and Solbrig 1977; Schulze 1982; Bloom et al. 1985). Both acquisition and partitioning determine plant growth and biomass losses, which in turn influence the transfer of resources to other trophic levels of the ecosystem. Plants are specialized to the large variety of terrestrial habitat conditions by different plant life forms (Schulze 1982) or by variations in life histories, physiological specializations, and morphological or cytological modifications which determine the actual competition within the community (Grime 1977). Plants of a given species are capable only to a certain degree of using available resources, and, if resources are available beyond this range, the community shifts toward a different group of dominant species which in turn also alter the habitat by changing the availability of light, carbohydrates, and nutrients, and the fluxes of resources through the ecosystem.


Woody Species Herbaceous Species Resource Supply Specific Leaf Weight Plant Life Form 
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  • E.-D. Schulze
  • F. S. ChapinIII

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