Global S&T Development Trend Analysis Platform of Resources and Environment
DOI | 10.1111/ele.13448 |
Resource diversity promotes among-individual diet variation, but not genomic diversity, in lake stickleback | |
Bolnick, Daniel I.1,2,3; Ballare, Kimberly M.1,4 | |
2020-03-01 | |
发表期刊 | ECOLOGY LETTERS
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ISSN | 1461-023X |
EISSN | 1461-0248 |
出版年 | 2020 |
卷号 | 23期号:3页码:495-505 |
文章类型 | Article |
语种 | 英语 |
国家 | USA |
英文摘要 | Many generalist species consist of specialised individuals that use different resources. This within-population niche variation can stabilise population and community dynamics. Consequently, ecologists wish to identify environmental settings that promote such variation. Theory predicts that environments with greater resource diversity favour ecological diversity among consumers (via disruptive selection or plasticity). Alternatively, niche variation might be a side-effect of neutral genomic diversity in larger populations. We tested these alternatives in a metapopulation of threespine stickleback. Stickleback consume benthic and limnetic invertebrates, focusing on the former in small lakes, the latter in large lakes. Intermediate-sized lakes support generalist stickleback populations using an even mixture of the two prey types, and exhibit greater amongindividual variation in diet and morphology. In contrast, genomic diversity increases with lake size. Thus, phenotypic diversity and neutral genetic polymorphism are decoupled: trophic diversity being greatest in intermediate-sized lakes with high resource diversity, whereas neutral genetic diversity is greatest in the largest lakes. |
英文关键词 | adaptive radiation diversification effective population size Gasterosteus aculeatus individual specialisation intraspecific variation niche variation |
领域 | 资源环境 |
收录类别 | SCI-E |
WOS记录号 | WOS:000534146900009 |
WOS关键词 | INTRASPECIFIC COMPETITION ; ECOLOGICAL OPPORTUNITY ; GENETIC-VARIATION ; CHARACTER DISPLACEMENT ; NICHE WIDTH ; GASTEROSTEUS-ACULEATUS ; ADAPTIVE DIVERGENCE ; POPULATIONS ; SPECIALIZATION ; POLYMORPHISM |
WOS类目 | Ecology |
WOS研究方向 | Environmental Sciences & Ecology |
引用统计 | |
文献类型 | 期刊论文 |
条目标识符 | http://119.78.100.173/C666/handle/2XK7JSWQ/279091 |
专题 | 资源环境科学 |
作者单位 | 1.Univ Texas Austin, Dept Integrat Biol, Austin, TX 78712 USA; 2.Univ Connecticut, Ecol & Evolutionary Biol, Storrs, CT 06269 USA; 3.Univ Connecticut, Inst Syst Genom, Storrs, CT 06269 USA; 4.Univ Calif Santa Cruz, Ecol & Evolutionary Biol, Santa Cruz, CA 95064 USA |
推荐引用方式 GB/T 7714 | Bolnick, Daniel I.,Ballare, Kimberly M.. Resource diversity promotes among-individual diet variation, but not genomic diversity, in lake stickleback[J]. ECOLOGY LETTERS,2020,23(3):495-505. |
APA | Bolnick, Daniel I.,&Ballare, Kimberly M..(2020).Resource diversity promotes among-individual diet variation, but not genomic diversity, in lake stickleback.ECOLOGY LETTERS,23(3),495-505. |
MLA | Bolnick, Daniel I.,et al."Resource diversity promotes among-individual diet variation, but not genomic diversity, in lake stickleback".ECOLOGY LETTERS 23.3(2020):495-505. |
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