Rapid growth and large body size in annual fish populations are compromised by density-dependent regulation
Language English Country Great Britain, England Media print-electronic
Document type Journal Article
Grant support
19-01781S
Czech Science Foundation
PubMed
31102276
DOI
10.1111/jfb.14052
Knihovny.cz E-resources
- Keywords
- Nothobranchius, plasticity, population regulation, somatic growth, sympatry, temporary habitat,
- MeSH
- Cyprinodontiformes growth & development MeSH
- Ecosystem MeSH
- Fundulidae growth & development physiology MeSH
- Population Density MeSH
- Seasons MeSH
- Sex Factors MeSH
- Age Distribution MeSH
- Body Size * physiology MeSH
- Animals MeSH
- Check Tag
- Male MeSH
- Female MeSH
- Animals MeSH
- Publication type
- Journal Article MeSH
- Geographicals
- Africa MeSH
- Mozambique MeSH
We tested the effect of population density on maximum body size in three sympatric species of annual killifishes Nothobranchius spp. from African ephemeral pools. We found a clear negative effect of population density on body size, limiting their capacity for extremely fast development and rapid growth. This suggests that density-dependent population regulation and the ephemeral character of their habitat impose contrasting selective pressures on the life history of annual killifishes.
Department of Zoology Faculty of Sciences Charles University Praha Czech Republic
The Czech Academy of Sciences Institute of Vertebrate Biology Brno Czech Republic
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