| Fitness costs of reproduction depend on life speed: empirical evidence from mammalian populations. | |
| | |
MedLine Citation:
|
PMID: 20482573 Owner: NLM Status: MEDLINE |
Abstract/OtherAbstract:
|
Fitness costs of reproduction play a key role in understanding the evolution of reproductive tactics. Nevertheless, the detection and the intensity of costs of reproduction vary according to which life-history traits and species are studied. We propose an evolutionary model demonstrating that the chance of detecting a cost of reproduction should be lower when the fitness component studied has a low rather than high variance. Consequently, the fitness component that is affected the most by costs of reproduction should vary with life speed. Since long-lived species have developed a strategy that avoids jeopardizing their survival and short-lived species favour current reproduction, variance in survival is smaller and variance in reproduction higher in long-lived vs. short-lived species. We review empirical studies of costs of reproduction in free-ranging mammals, comparing evidence of costs reported among species and focal traits. In support of our model, more studies reported evidence of reproductive costs of reproduction in ungulates than in rodents, whereas survival costs of reproduction were more frequent in rodents than in ungulates. The life-history model we propose is expected to apply to any species, and hence provides a better understanding of life-history variation, which should be relevant to all evolutionary ecologists. |
| | |
Authors:
|
Sandra Hamel; Jean-Michel Gaillard; Nigel Gilles Yoccoz; Anne Loison; Christophe Bonenfant; Sébastien Descamps |
Related Documents
:
|
8851813 - Uniform standards for substance user treatment research: an example from germany for th... 10975583 - Effects of azimilide, acidemia, and the combination on defibrillation energy requirements. 10457463 - Critical comparison of retention models for the optimisation of the separation of anion... |
Publication Detail:
|
Type: Journal Article; Research Support, Non-U.S. Gov't; Review Date: 2010-05-05 |
Journal Detail:
|
Title: Ecology letters Volume: 13 ISSN: 1461-0248 ISO Abbreviation: Ecol. Lett. Publication Date: 2010 Jul |
Date Detail:
|
Created Date: 2010-07-19 Completed Date: 2010-10-21 Revised Date: - |
Medline Journal Info:
|
Nlm Unique ID: 101121949 Medline TA: Ecol Lett Country: England |
Other Details:
|
Languages: eng Pagination: 915-35 Citation Subset: IM |
Affiliation:
|
Department of Arctic and Marine Biology, Faculty of Biosciences, Fisheries and Economics, University of Tromsø, 9037 Tromsø, Norway. sandra.hamel@uit.no |
Export Citation:
|
APA/MLA Format Download EndNote Download BibTex |
| MeSH Terms | |
Descriptor/Qualifier:
|
Animals Empirical Research Reproduction* Species Specificity |
From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine
Previous Document: Scale matters: the impact of organic farming on biodiversity at different spatial scales.
Next Document: Can mechanism inform species' distribution models?