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| Testing mechanisms of compensatory fitness of dioecy in a cosexual world | |
| Wang, Yunyun; Mazer, Susan J.; Freckleton, Robert P.; Yuan, Zuoqiang; Wang, Xugao; Du, Yanjun3; Lin, Luxiang4; Wang, Xihua5; Sang, Weiguo3; Liu, Xiaojuan3; Hao, Zhanqing | |
| 2019 | |
| 发表期刊 | JOURNAL OF VEGETATION SCIENCE
 |
| ISSN | 1100-9233 |
| 卷号 | 30期号:3页码:413-426 |
| 摘要 | Questions All else being equal, populations of dioecious species with a 50:50 sex ratio have only half the effective reproductive population size of bisexual species of equal abundance. Consequently, there is a need to explain how dioecious and bisexual species coexist. Increased mean individual seed mass, fecundity, and population density have all been proposed as attributes of unisexual individuals or populations that may contribute to the persistence or resilience of dioecious species. To date, no studies have compared sympatric dioecious and cosexual species with respect to all three components of fitness. In this study, we sought evidence for these compensatory advantages (higher seed mass, greater seed production per unit basal area, and higher population density) in dioecious species. Location Five 20-25 ha forest dynamic plots spanning a latitudinal gradient in China, including two temperate, two subtropical, and one tropical forest. Methods We used a phylogenetically corrected generalized linear modelling approach to assess the phylogenetic dependence and joint evolution of sexual system, seed mass and production, and ecological abundances among 48-333 species and 32,568-136,237 individuals per forest. Results Across all five forests, we detected no consistent advantage for dioecious relative to sympatric cosexual species with respect to mean individual seed mass, seed production or the density of stems in any size class. Conclusions Our study suggests that seed traits may provide compensatory mechanisms in some forests, but most often the coexistence of sexual systems cannot be explained by advantages of dioecy related to seed quality and demographic parameters. Future investigations of the factors that promote coexistence may increase our understanding by expanding the search to include attributes such as lifespan and tolerance or resistance to herbivores. |
| 关键词 | abundance bisexual dioecy forest dynamics plot multiple forest type per basal area seed mass sexual system |
| 学科领域 | Plant Sciences ; Ecology ; Forestry |
| DOI | 10.1111/jvs.12730 |
| 收录类别 | SCI |
| 语种 | 英语 |
| WOS关键词 | REPRODUCTIVE TRAITS ; SEED DISPERSAL ; RAIN-FOREST ; RECRUITMENT LIMITATION ; SPATIAL-DISTRIBUTION ; PHYLOGENETIC SIGNAL ; BREEDING SYSTEMS ; ATLANTIC FOREST ; SEX-RATIOS ; EVOLUTION |
| WOS研究方向 | Plant Sciences ; Environmental Sciences & Ecology ; Forestry |
| WOS记录号 | WOS:000469999900002 |
| 出版者 | WILEY |
| 文献子类 | Article |
| 出版地 | HOBOKEN |
| EISSN | 1654-1103 |
| 资助机构 | National Key Research and Development Program of China [2016YFC0500300] ; National Natural Science Foundation of ChinaNational Natural Science Foundation of China (NSFC) [31370445, 31570432, 31670632, 31770666, 41671050] |
| 作者邮箱 | susan.mazer@lifesci.ucsb.edu ; hzq@iae.ac.cn |
| 作品OA属性 | Green Published |
| 引用统计 | |
| 文献类型 | 期刊论文 |
| 条目标识符 | http://ir.ibcas.ac.cn/handle/2S10CLM1/19636 |
| 专题 | 植被与环境变化国家重点实验室 |
| 作者单位 | 1.Chinese Acad Sci, Inst Appl Ecol, Key Lab Forest Ecol & Management, Shenyang, Liaoning, Peoples R China 2.Mazer, Susan J.] Univ Calif Santa Barbara, Dept Ecol Evolut & Marine Biol, Santa Barbara, CA 93106 USA 3.Freckleton, Robert P.] Univ Sheffield, Dept Anim & Plant Sci, Sheffield, S Yorkshire, England 4.Chinese Acad Sci, Inst Bot, State Key Lab Vegetat & Environm Change, Beijing, Peoples R China 5.Chinese Acad Sci, Key Lab Trop Forest Ecol, Xishuangbanna Trop Bot Garden, Kunming, Yunnan, Peoples R China 6.East China Normal Univ, Tiantong Natl Field Observat Stn Forest Ecosyst, Shanghai, Peoples R China |
| 推荐引用方式 GB/T 7714 | Wang, Yunyun,Mazer, Susan J.,Freckleton, Robert P.,et al. Testing mechanisms of compensatory fitness of dioecy in a cosexual world[J]. JOURNAL OF VEGETATION SCIENCE,2019,30(3):413-426. |
| APA | Wang, Yunyun.,Mazer, Susan J..,Freckleton, Robert P..,Yuan, Zuoqiang.,Wang, Xugao.,...&Hao, Zhanqing.(2019).Testing mechanisms of compensatory fitness of dioecy in a cosexual world.JOURNAL OF VEGETATION SCIENCE,30(3),413-426. |
| MLA | Wang, Yunyun,et al."Testing mechanisms of compensatory fitness of dioecy in a cosexual world".JOURNAL OF VEGETATION SCIENCE 30.3(2019):413-426. |
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| J Vegetation Science（1375KB） | 期刊论文 | 出版稿 | 开放获取 | CC BY-NC-SA | 浏览 请求全文 | |
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