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#r-selection

2 public questions tagged with this topic.

CSIR-NET: Compared to K-selection, r-selection favors:

Selection in frequently disturbed or short-lived habitats favors rapid maturation and high early reproductive output because delaying reproduction risks dying before breeding. Semelparity can fit this strategy when one large reproductive effort maximizes offspring production under low adult survival. Rapid development is therefore consistent with the classical r-selected end of the continuum, while large body size and repeated, carefully supported breeding are more often linked with K selection. Survivorship and reproductive schedules are connected through allocation. An organism has finite en

Ref: Ecology: Concepts and Applications, Molles, 9th Ed., Ch. 12

The r in r-selection stands for:

“Growth rate” for the r in r-selection stands for. This relationship follows from the ecological mechanism represented by the terms in the item, not merely from an association between their names. Selection favors the schedule that increases lifetime reproductive success under local mortality and resource conditions. Body size, development time, fecundity, parental investment, and generation length consequently tend to covary. The remaining alternatives—“Reproductive energy”, “Resource richness”, “Resistance”—refer to different states, processes, or scales and therefore do not express the same

Ref: Ecology: Concepts and Applications, Molles, 9th Ed., Ch. 12