UNEXPLAINED SPLIT SEX RATIOS IN THE NEOTROPICAL PLANT-ANT, ALLOMERUS OCTOARTICULATUS VAR. DEMERARAE (MYRMICINAE): A TEST OF HYPOTHESES
文献类型：期刊论文
| 作者 | Debout GDG1,2,3; Frederickson ME4; Aron S3; Yu DW[*]1,2 |
| 刊名 | EVOLUTION
 |
| 出版日期 | 2010 |
| 卷号 | 64期号:1页码:126-141 |
| 关键词 | Ant-plant symbiosis local mate competition local resource competition mating system relatedness asymmetry resource abundance |
| 通讯作者 | douglas.yu@uea.ac.uk |
| 合作状况 | 其它 |
| 英文摘要 | We investigated sex allocation in the Neotropical ant Allomerus octoarticulatus var. demerarae. Because Allomerus is a plant symbiont, we could make geographically extensive collections of complete colonies and of foundresses in saplings, allowing us to estimate not only population- and colony-level sex allocation but also colony resource levels and the relatednesses of competing ant foundresses. This species exhibits a strongly split sex ratio, with 80% of mature colonies producing >= 90% of one sex or the other. Our genetic analyses (DNA microsatellites) reveal that Allomerus has a breeding system characterized by almost complete monogyny and a low frequency of polyandry. Contrary to theoretical explanations, we find no difference in worker relatedness asymmetries between female- and male-specialist colonies. Furthermore, no clear link was found between colony sex allocation and life history traits such as the number of mates per queen, or colony size, resource level, or fecundity. We also failed to find significant support for male production by workers, infection by Wolbachia, local resource competition, or local mate competition. We are left with the possibility that Allomerus exhibits split sex ratios because of the evolution of alternative biasing strategies in queens or workers, as recently proposed in the literature. |
| 收录类别 | SCI |
| 语种 | 英语 |
| 源URL | [http://159.226.149.26:8080/handle/152453/9618]  |
| 专题 | 昆明动物研究所_动物生态学研究中心 昆明动物研究所_遗传资源与进化国家重点实验室 |
| 作者单位 | 1.Ecology, Conservation, and Environment Center (ECEC), State Key Laboratory of Genetic Resources and Evolution, Kunming Institute of Zoology, Chinese Academy of Science, Kunming, Yunnan, 65022 China 2.Centre for Ecology, Evolution, and Conservation (CEEC), School of Biological Sciences, University of East Anglia, Norwich NR4 7TJ, United Kingdom 3.Department of Behavioural and Evolutionary Ecology, Université Libre de Bruxelles, 50 Av. F. Roosevelt, B-1050 Brussels, Belgium 4.Department of Biological Sciences, Stanford University, Stanford, California 94305 |
| 推荐引用方式 GB/T 7714 | Debout GDG,Frederickson ME,Aron S,et al. UNEXPLAINED SPLIT SEX RATIOS IN THE NEOTROPICAL PLANT-ANT, ALLOMERUS OCTOARTICULATUS VAR. DEMERARAE (MYRMICINAE): A TEST OF HYPOTHESES[J]. EVOLUTION,2010,64(1):126-141. |
| APA | Debout GDG,Frederickson ME,Aron S,&Yu DW[*].(2010).UNEXPLAINED SPLIT SEX RATIOS IN THE NEOTROPICAL PLANT-ANT, ALLOMERUS OCTOARTICULATUS VAR. DEMERARAE (MYRMICINAE): A TEST OF HYPOTHESES.EVOLUTION,64(1),126-141. |
| MLA | Debout GDG,et al."UNEXPLAINED SPLIT SEX RATIOS IN THE NEOTROPICAL PLANT-ANT, ALLOMERUS OCTOARTICULATUS VAR. DEMERARAE (MYRMICINAE): A TEST OF HYPOTHESES".EVOLUTION 64.1(2010):126-141. |
入库方式： OAI收割
来源：昆明动物研究所
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