Maternal effects and population regulation: maternal density-induced reproduction suppression impairs offspring capacity in response to immediate environment in root voles Microtus oeconomus
文献类型：期刊论文
| 作者 | Bian, Jiang-Hui1; Du, Shou-Yang1,2; Wu, Yan3; Cao, Yi-Fan1; Nie, Xu-Heng1,2; He, Hui1,2; You, Zhi-Bing4 |
| 刊名 | journal of animal ecology
 |
| 出版日期 | 2015-03-01 |
| 卷号 | 84期号:2页码:326-336 |
| 关键词 | ecological stressor environmental mismatch glucocorticoid metabolites maternal matching none-genetic phenotypic effects population self-regulation |
| 中文摘要 | 1. the hypothesis that maternal effects act as an adaptive bridge in translating maternal environments into offspring phenotypes, and thereby affecting population dynamics has not been studied in the well-controlled fields. in this study, the effects of maternal population density on offspring stress axis, reproduction and population dynamics were studied in root voles (microtus oeconomus). parental enclosures for breeding offspring were established by introducing six adults per sex into each of 4 (low density) and 30 adults per sex into each of another 4 (high density) enclosures. live-trapping started 2weeks after. offspring captured at age of 20-30 days were removed to the laboratory, housed under laboratory conditions until puberty, and subsequently used to establish offspring populations in these same enclosures, after parental populations had been removed. [correction added on 8 january 2015 after first online publication: 10-20 days' has been changed to 20-30 days.'] offspring from each of the two parental sources were assigned into four enclosures with two for each of the two density treatments used in establishing parental populations (referred to as ll and lh for maternally unstressed offspring, assigned in low and highdensity, and hl and hh for maternally stressed offspring, assigned in low and high density). faecal corticosterone metabolites (fcm) levels, offspring reproduction traits and population dynamics were tested following repeated live-trapping over two seasons. differential fluctuations in population size were observed between maternally density-stressed and density-unstressed offspring. populations in ll and lh groups changed significantly in responding to initial density and reached the similar levels at beginning of the second trapping season. populations in hl and hh groups, however, were remained relatively steady, and in hl group, the low population size was sustained until end of experiment. maternal density stress was associated with fcm elevations, reproduction suppression and body mass decrease at sexual maturity in offspring. the fcm elevations and reproduction suppression were independent of offspring population density and correlated with decreased offspring quality. these findings indicate that intrinsic state alterations induced by maternal stress impair offspring capacity in response to immediate environment, and these alterations are likely mediated by maternal stress system. the maladaptive reproduction suppression seen in hl group suggests intrinsic population density as one of ecological factors generating delayed density-dependent effects. |
| 英文摘要 | 1. the hypothesis that maternal effects act as an adaptive bridge in translating maternal environments into offspring phenotypes, and thereby affecting population dynamics has not been studied in the well-controlled fields. in this study, the effects of maternal population density on offspring stress axis, reproduction and population dynamics were studied in root voles (microtus oeconomus). parental enclosures for breeding offspring were established by introducing six adults per sex into each of 4 (low density) and 30 adults per sex into each of another 4 (high density) enclosures. live-trapping started 2weeks after. offspring captured at age of 20-30 days were removed to the laboratory, housed under laboratory conditions until puberty, and subsequently used to establish offspring populations in these same enclosures, after parental populations had been removed. [correction added on 8 january 2015 after first online publication: 10-20 days' has been changed to 20-30 days.'] offspring from each of the two parental sources were assigned into four enclosures with two for each of the two density treatments used in establishing parental populations (referred to as ll and lh for maternally unstressed offspring, assigned in low and highdensity, and hl and hh for maternally stressed offspring, assigned in low and high density). faecal corticosterone metabolites (fcm) levels, offspring reproduction traits and population dynamics were tested following repeated live-trapping over two seasons. differential fluctuations in population size were observed between maternally density-stressed and density-unstressed offspring. populations in ll and lh groups changed significantly in responding to initial density and reached the similar levels at beginning of the second trapping season. populations in hl and hh groups, however, were remained relatively steady, and in hl group, the low population size was sustained until end of experiment. maternal density stress was associated with fcm elevations, reproduction suppression and body mass decrease at sexual maturity in offspring. the fcm elevations and reproduction suppression were independent of offspring population density and correlated with decreased offspring quality. these findings indicate that intrinsic state alterations induced by maternal stress impair offspring capacity in response to immediate environment, and these alterations are likely mediated by maternal stress system. the maladaptive reproduction suppression seen in hl group suggests intrinsic population density as one of ecological factors generating delayed density-dependent effects. |
| WOS标题词 | science & technology ; life sciences & biomedicine |
| 类目[WOS] | ecology ; zoology |
| 研究领域[WOS] | environmental sciences & ecology ; zoology |
| 关键词[WOS] | predator-induced stress ; life-history traits ; clethrionomys-glareolus ; chitty hypothesis ; small mammals ; bank voles ; cycles ; ecology ; hormones ; dynamics |
| 收录类别 | SCI |
| 语种 | 英语 |
| WOS记录号 | WOS:000349968700002 |
| 源URL | [http://ir.nwipb.ac.cn/handle/363003/5578]  |
| 专题 | 西北高原生物研究所_中国科学院西北高原生物研究所 |
| 作者单位 | 1.Chinese Acad Sci, Northwest Inst Plateau Biol, Key Lab Adaptat & Evolut Plateau Biota, Xining 810001, Peoples R China 2.Chinese Acad Sci, Grad Univ, Beijing 100049, Peoples R China 3.Hangzhou Normal Univ, Sch Life & Environm Sci, Hangzhou 310012, Zhejiang, Peoples R China 4.NIDA, Neurosci Branch, Intramural Res Program, NIH, Baltimore, MD 21224 USA |
| 推荐引用方式 GB/T 7714 | Bian, Jiang-Hui,Du, Shou-Yang,Wu, Yan,et al. Maternal effects and population regulation: maternal density-induced reproduction suppression impairs offspring capacity in response to immediate environment in root voles Microtus oeconomus[J]. journal of animal ecology,2015,84(2):326-336. |
| APA | Bian, Jiang-Hui.,Du, Shou-Yang.,Wu, Yan.,Cao, Yi-Fan.,Nie, Xu-Heng.,...&You, Zhi-Bing.(2015).Maternal effects and population regulation: maternal density-induced reproduction suppression impairs offspring capacity in response to immediate environment in root voles Microtus oeconomus.journal of animal ecology,84(2),326-336. |
| MLA | Bian, Jiang-Hui,et al."Maternal effects and population regulation: maternal density-induced reproduction suppression impairs offspring capacity in response to immediate environment in root voles Microtus oeconomus".journal of animal ecology 84.2(2015):326-336. |
入库方式： OAI收割
来源：西北高原生物研究所
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