Climax species

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An image of ecological succession, starting with pioneer species and ending with an old-growth forest that is dominated by climax species, which is denoted by VIII.

Climax species, also called late

species composition for as long as a site remains undisturbed.[2]

The

R-selected species, in the sense that climax species are good competitors but poor colonizers, whereas pioneer species are good colonizers but poor competitors.[5]

Given the prevailing ecological conditions, climax species dominate the

ecological homeostasis, the maximum permitted biodiversity is reached.[6] Their reproductive strategies and other adaptive characteristics can be considered more sophisticated than those of opportunistic species.[7]

Through

Disputed term

The idea of a climax species has been criticized in recent ecological literature.[9] Any assessment of successional states depends on assumptions about the natural fire regime. But the idea of a dominant species is still widely used in silvicultural programs and California Department of Forestry literature.[citation needed]

Examples

White spruce (Picea glauca) is an example of a climax species in the northern forests of North America due to its ability to adapt to resource scarce, stable conditions, it dominates Northern forest ecosystem in the absence of a disturbance.[10]

Other examples of climax species in old-growth forests:

See also

  • Climax vegetation

References

Further reading