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- Publisher Website: 10.1046/j.1461-0248.2000.00112.x
- Scopus: eid_2-s2.0-0033983349
- WOS: WOS:000085367700007
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Article: Spatial dynamics of adaptive sex ratios
Title | Spatial dynamics of adaptive sex ratios |
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Authors | |
Keywords | Operational sex ratio Sex allocation Spatial Human Adaptive Cellular automaton |
Issue Date | 2000 |
Citation | Ecology Letters, 2000, v. 3, n. 1, p. 30-34 How to Cite? |
Abstract | According to Fisherian sex allocation theory, parents that can adjust their offspring sex ratio in response to skews in population sex ratio will maximize their fitness over parents lacking this ability. There is good evidence that adaptive sex ratio adjustment occurs in many natural populations, but deviations from theoretical predictions have also been observed. These anomalies may be more apparent than real. When the spatial dimension of sex ratio variation is ignored, then a mismatch between empirical data and theoretical predictions based on panmictic mating is to be expected. We illustrate this with data on human sex ratio variation in 21 preindustrial populations, and with a cellular automaton model built to obey Fisherian sex allocation rules. The results from the model generally match with the data. When information about the ambient sex ratio is limited, then the sex allocation decisions may appear locally maladaptive. In general, the results indicate that Fisher's sex-ratio theory may have greater explanatory power than previously thought. |
Persistent Identifier | http://hdl.handle.net/10722/291523 |
ISSN | 2023 Impact Factor: 7.6 2023 SCImago Journal Rankings: 4.497 |
ISI Accession Number ID |
DC Field | Value | Language |
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dc.contributor.author | Ranta, Esa | - |
dc.contributor.author | Lummaa, Virpi | - |
dc.contributor.author | Kaitala, Veijo | - |
dc.contributor.author | Merilä, Juha | - |
dc.date.accessioned | 2020-11-17T14:54:33Z | - |
dc.date.available | 2020-11-17T14:54:33Z | - |
dc.date.issued | 2000 | - |
dc.identifier.citation | Ecology Letters, 2000, v. 3, n. 1, p. 30-34 | - |
dc.identifier.issn | 1461-023X | - |
dc.identifier.uri | http://hdl.handle.net/10722/291523 | - |
dc.description.abstract | According to Fisherian sex allocation theory, parents that can adjust their offspring sex ratio in response to skews in population sex ratio will maximize their fitness over parents lacking this ability. There is good evidence that adaptive sex ratio adjustment occurs in many natural populations, but deviations from theoretical predictions have also been observed. These anomalies may be more apparent than real. When the spatial dimension of sex ratio variation is ignored, then a mismatch between empirical data and theoretical predictions based on panmictic mating is to be expected. We illustrate this with data on human sex ratio variation in 21 preindustrial populations, and with a cellular automaton model built to obey Fisherian sex allocation rules. The results from the model generally match with the data. When information about the ambient sex ratio is limited, then the sex allocation decisions may appear locally maladaptive. In general, the results indicate that Fisher's sex-ratio theory may have greater explanatory power than previously thought. | - |
dc.language | eng | - |
dc.relation.ispartof | Ecology Letters | - |
dc.subject | Operational sex ratio | - |
dc.subject | Sex allocation | - |
dc.subject | Spatial | - |
dc.subject | Human | - |
dc.subject | Adaptive | - |
dc.subject | Cellular automaton | - |
dc.title | Spatial dynamics of adaptive sex ratios | - |
dc.type | Article | - |
dc.description.nature | link_to_subscribed_fulltext | - |
dc.identifier.doi | 10.1046/j.1461-0248.2000.00112.x | - |
dc.identifier.scopus | eid_2-s2.0-0033983349 | - |
dc.identifier.volume | 3 | - |
dc.identifier.issue | 1 | - |
dc.identifier.spage | 30 | - |
dc.identifier.epage | 34 | - |
dc.identifier.isi | WOS:000085367700007 | - |
dc.identifier.issnl | 1461-023X | - |