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Intra-specific relatedness, spatial clustering and reduced demographic performance in tropical rainforest trees
Shao, Xiaona1,2; Brown, Calum3; Worthy, Samantha J.4; Liu, Lu; Cao, Min; Li, Qiaoming; Lin, Luxiang; Swenson, Nathan G.
2018
Source PublicationECOLOGY LETTERS
ISSN1461-023X
Volume21Issue:8Pages:1174-1181
Abstract

Intra-specific negative density dependence promotes species coexistence by regulating population sizes. Patterns consistent with such density dependence are frequently reported in diverse tropical tree communities. Empirical evidence demonstrating whether intra-specific variation is related to these patterns, however, is lacking. The present study addresses this important knowledge gap by genotyping all individuals of a tropical tree in a long-term forest dynamics plot in tropical China. We show that related individuals are often spatially clustered, but having closely related neighbours reduces the growth performance of focal trees. We infer from the evidence that dispersal limitation and negative density dependence are operating simultaneously to impact the spatial distributions of genotypes in a natural population. Furthermore, dispersal limitation decreases local intra-specific genetic diversity and increases negative density dependence thereby promoting niche differences and species coexistence as predicted by theory.

Department其他
KeywordDensity Dependence Forest Dynamics Forest Ecology Rainforest Relatedness
Subject AreaEnvironmental Sciences & Ecology
DOIhttps://doi.org/10.1111/ele.13086
Language英语
Citation statistics
Document Type期刊论文
Identifierhttp://ir.xtbg.org.cn/handle/353005/10968
Collection森林生态研究组
中国科学院西双版纳热带植物园
Corresponding AuthorLi, Qiaoming; Lin, Luxiang
Affiliation1.Key Laboratory of Tropical Forest Ecology, Xishuangbanna Tropical Botanical Garden, Chinese Academy of Sciences, Kunming, Yunnan, China
2.Key Laboratory of Tropical Forest Ecology, Xishuangbanna Tropical Botanical Garden, Chinese Academy of Sciences, Kunming, Yunnan, China
3.Institute of Meteorology and Climate Research, Atmospheric Environmental Research, Karlsruhe Institute of Technology, Garmisch‐Partenkirchen, Germany
4.Department of Biology, University of Maryland, College Park, MD, USA
Recommended Citation
GB/T 7714
Shao, Xiaona,Brown, Calum,Worthy, Samantha J.,et al. Intra-specific relatedness, spatial clustering and reduced demographic performance in tropical rainforest trees[J]. ECOLOGY LETTERS,2018,21(8):1174-1181.
APA Shao, Xiaona.,Brown, Calum.,Worthy, Samantha J..,Liu, Lu.,Cao, Min.,...&Swenson, Nathan G..(2018).Intra-specific relatedness, spatial clustering and reduced demographic performance in tropical rainforest trees.ECOLOGY LETTERS,21(8),1174-1181.
MLA Shao, Xiaona,et al."Intra-specific relatedness, spatial clustering and reduced demographic performance in tropical rainforest trees".ECOLOGY LETTERS 21.8(2018):1174-1181.
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