Propagule size and parental care: the "safe harbor" hypothesis

Richard Shine

doi:10.1016/0022-5193(78)90353-3

Propagule size and parental care: the "safe harbor" hypothesis

Richard Shine^*

^*Corresponding author for this work

Research output: Contribution to journal › Article › peer-review

139 Citations (Scopus)

Abstract

Species that protect their offspring (by egg-brooding or live-bearing) produce larger (and hence fewer) propagules than do related species that do not protect their offspring. This result holds true in most animal groups showing parental care. Analysis of these data supports the hypothesis that propagule size evolves in response to relative survivorship rates during and after the propagule stage: natural selection is most likely to favor large egg size when the egg is a safe harbor.

Original language	English
Pages (from-to)	417-424
Number of pages	8
Journal	Journal of Theoretical Biology
Volume	75
Issue number	4
DOIs	https://doi.org/10.1016/0022-5193(78)90353-3
Publication status	Published - 21 Dec 1978
Externally published	Yes

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10.1016/0022-5193(78)90353-3

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AB - Species that protect their offspring (by egg-brooding or live-bearing) produce larger (and hence fewer) propagules than do related species that do not protect their offspring. This result holds true in most animal groups showing parental care. Analysis of these data supports the hypothesis that propagule size evolves in response to relative survivorship rates during and after the propagule stage: natural selection is most likely to favor large egg size when the egg is a safe harbor.

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Propagule size and parental care: the "safe harbor" hypothesis

Abstract

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