| 来源类型 | Article
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| 规范类型 | 其他
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| DOI | 10.1098/rsbl.2005.0422
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| Mothers determine offspring size in response to own juvenile growth conditions. |
| Taborsky B
|
| 发表日期 | 2006
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| 出处 | Biology Letters 2 (2): 225-228
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| 出版年 | 2006
|
| 语种 | 英语
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| 摘要 | Through non-genetic maternal effects, mothers can tailor offspring phenotype to the environment in which young will grow up. If juvenile and adult ecologies differ, the conditions mothers experienced as juveniles may better predict their offspring's environment than the adult environment of mothers. In this case maternal decisions about investment in offspring quality should already be determined during the juvenile phase of mothers. I tested this hypothesis by manipulating juvenile and adult maternal environments independently in a cichlid fish. Females raised in a poor environment produced larger young than females raised without food limitations, irrespective of the feeding condition experienced during adulthood. This maternal boost was due to a higher investment in eggs and to faster larval growth. Apparently, mothers prepare their offspring for similar environmental conditions to those they encountered as juveniles. This explanation is supported by the distribution of these fishes under natural conditions. Juveniles live in a different and much narrower range of habitats than adults. Therefore, the habitat mothers experienced as juveniles will allow them to predict their offspring's environment better than the conditions in the adult home range. |
| 主题 | Evolution and Ecology (EEP)
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| 关键词 | Maternal Effects
Ontogeny
Egg size
Cichlids
Life history
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| URL | http://pure.iiasa.ac.at/id/eprint/7892/
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| 来源智库 | International Institute for Applied Systems Analysis (Austria)
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| 引用统计 |
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| 资源类型 | 智库出版物
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| 条目标识符 | http://119.78.100.153/handle/2XGU8XDN/128570
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推荐引用方式
GB/T 7714 |
Taborsky B. Mothers determine offspring size in response to own juvenile growth conditions.. 2006.
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