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- Publisher Website: 10.1111/j.1558-5646.2009.00781.x
- Scopus: eid_2-s2.0-70450213134
- PMID: 19624722
- WOS: WOS:000271973600014
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Article: Evolution of gigantism in nine-spined sticklebacks
Title | Evolution of gigantism in nine-spined sticklebacks |
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Authors | |
Keywords | Pungitius Predation Island rule Natural selection Body size Competition |
Issue Date | 2009 |
Citation | Evolution, 2009, v. 63, n. 12, p. 3190-3200 How to Cite? |
Abstract | The relaxation of predation and interspecific competition are hypothesized to allow evolution toward "optimal" body size in island environments, resulting in the gigantism of small organisms. We tested this hypothesis by studying a small teleost (nine-spined stickleback, Pungitius pungitius) from four marine and five lake (diverse fish community) and nine pond (impoverished fish community) populations. In line with theory, pond fish tended to be larger than their marine or lake conspecifics, sometimes reaching giant sizes. In two geographically independent cases when predatory fish had been introduced into ponds, fish were smaller than those in nearby ponds lacking predators. Pond fish were also smaller when found in sympatry with three-spined stickleback (Gasterosteus aculeatus) than those in ponds lacking competitors. Size-at-age analyses demonstrated that larger size in ponds was achieved by both increased growth rates and extended longevity of pond fish. Results from a common garden experiment indicate that the growth differences had a genetic basis: pond fish developed two to three times higher body mass than marine fish during 36 weeks of growth under similar conditions. Hence, reduced risk of predation and interspecific competition appear to be chief forces driving insular body size evolution toward gigantism. |
Persistent Identifier | http://hdl.handle.net/10722/291925 |
ISSN | 2023 Impact Factor: 3.1 2023 SCImago Journal Rankings: 1.235 |
ISI Accession Number ID |
DC Field | Value | Language |
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dc.contributor.author | Herczeg, Gábor | - |
dc.contributor.author | Gonda, Abigél | - |
dc.contributor.author | Merilä, Juha | - |
dc.date.accessioned | 2020-11-17T14:55:24Z | - |
dc.date.available | 2020-11-17T14:55:24Z | - |
dc.date.issued | 2009 | - |
dc.identifier.citation | Evolution, 2009, v. 63, n. 12, p. 3190-3200 | - |
dc.identifier.issn | 0014-3820 | - |
dc.identifier.uri | http://hdl.handle.net/10722/291925 | - |
dc.description.abstract | The relaxation of predation and interspecific competition are hypothesized to allow evolution toward "optimal" body size in island environments, resulting in the gigantism of small organisms. We tested this hypothesis by studying a small teleost (nine-spined stickleback, Pungitius pungitius) from four marine and five lake (diverse fish community) and nine pond (impoverished fish community) populations. In line with theory, pond fish tended to be larger than their marine or lake conspecifics, sometimes reaching giant sizes. In two geographically independent cases when predatory fish had been introduced into ponds, fish were smaller than those in nearby ponds lacking predators. Pond fish were also smaller when found in sympatry with three-spined stickleback (Gasterosteus aculeatus) than those in ponds lacking competitors. Size-at-age analyses demonstrated that larger size in ponds was achieved by both increased growth rates and extended longevity of pond fish. Results from a common garden experiment indicate that the growth differences had a genetic basis: pond fish developed two to three times higher body mass than marine fish during 36 weeks of growth under similar conditions. Hence, reduced risk of predation and interspecific competition appear to be chief forces driving insular body size evolution toward gigantism. | - |
dc.language | eng | - |
dc.relation.ispartof | Evolution | - |
dc.subject | Pungitius | - |
dc.subject | Predation | - |
dc.subject | Island rule | - |
dc.subject | Natural selection | - |
dc.subject | Body size | - |
dc.subject | Competition | - |
dc.title | Evolution of gigantism in nine-spined sticklebacks | - |
dc.type | Article | - |
dc.description.nature | link_to_OA_fulltext | - |
dc.identifier.doi | 10.1111/j.1558-5646.2009.00781.x | - |
dc.identifier.pmid | 19624722 | - |
dc.identifier.scopus | eid_2-s2.0-70450213134 | - |
dc.identifier.volume | 63 | - |
dc.identifier.issue | 12 | - |
dc.identifier.spage | 3190 | - |
dc.identifier.epage | 3200 | - |
dc.identifier.eissn | 1558-5646 | - |
dc.identifier.isi | WOS:000271973600014 | - |
dc.identifier.issnl | 0014-3820 | - |