Conspecific and phylogenetic density-dependent survival differs across life stages in a tropical forest

doi:10.1111/1365-2745.12414

CORC > 植物研究所 > 中国科学院植物研究所 > 植被与环境变化国家重点实验室

	Conspecific and phylogenetic density-dependent survival differs across life stages in a tropical forest
	Zhu, Yan ; Comita, Liza S.; Hubbell, Stephen P.; Ma, Keping
刊名	JOURNAL OF ECOLOGY
	2015
卷号	103 期号:4 页码:957-966
关键词	density dependence determinants of plant community diversity and structure Janzen-Connell hypothesis neighbourhood analysis phylogenetic relatedness seedlings dynamics species coexistence tropical forest
ISSN号	0022-0477
DOI	10.1111/1365-2745.12414
文献子类	Article
英文摘要	Ecologists have long recognized that plant performance is affected by the density and composition of neighbouring individuals. With the advent of highly resolved species-level phylogenies, it has become possible to test whether such density-dependent neighbourhood interactions are also phylogenetically dependent. Most studies of density dependence have focused on a single life stage; however, the relative importance of different neighbourhood interactions may shift over the lifetime of an individual. We examined effects of conspecific neighbour density, heterospecific neighbour density and average phylogenetic relatedness of heterospecific neighbours on the survival of seedlings, saplings, juveniles and adult trees of 29 focal tree species using long-term, spatially explicit forest dynamics data and a highly resolved DNA barcode phylogeny from the tropical forest of Barro Colorado Island (BCI), Panama. Our results show a decline in the strength of conspecific negative density dependence across life stages: strong negative conspecific neighbour effects at early life stages gave way to weak positive conspecific neighbour effects for adult trees. In contrast, the effect of heterospecific neighbour density on survival showed no clear trend with life stage. We found evidence of phylogenetic density dependence in the BCI forest, with a significant negative impact of neighbourhood relatedness on focal tree survival, but only for later life stages. In contrast to studies from other tropical forests, neighbourhood relatedness had a significant positive effect on seedling survival. Furthermore, we found that focal species varied much more widely in their sensitivity to conspecific neighbour density than in their reactions to heterospecific neighbour density or phylogenetic relatedness.Synthesis. Overall, our results demonstrate that both conspecific density dependence and phylogenetic density dependence influence tropical tree survival, but that their relative importance varies with life stage and among species. Our study highlights the need to incorporate multiple life stages and multiple species when assessing the factors contributing to individual survival and species coexistence for long-lived organisms.
学科主题	Plant Sciences ; Ecology
电子版国际标准刊号	1365-2745
出版地	HOBOKEN
WOS关键词	SEEDLING MORTALITY ; HABITAT ASSOCIATIONS ; SPATIAL-PATTERNS ; LOCAL NEIGHBORHOOD ; TRAIT EVOLUTION ; TREE SEEDLINGS ; RAIN-FOREST ; DIVERSITY ; COMPETITION ; SPECIFICITY
WOS研究方向	Science Citation Index Expanded (SCI-EXPANDED)
语种	英语
出版者	WILEY
WOS记录号	WOS:000356630600018
资助机构	CAS [KSCX2-EW-Z-5] ; State Key Laboratory of Vegetation and Environmental Change [2011zyts12] ; NSF-China [31200342, 31170401, 31011120470] ; National Science Foundation [DEB-0425651, DEB-0346488, DEB-0129874, DEB-00753102, DEB-9909347, DEB-9615226, DEB-9405933, DEB-9221033, DEB-9100058, DEB-8906869, DEB-8605042, DEB-8206992, DEB-7922197, DEB-0075102, DEB-0710211, DEB-0823728, DEB-1242622, DEB-0640386] ; Center for Tropical Forest Science ; Smithsonian Tropical Research Institute ; John D. and Catherine T. MacArthur Foundation ; Mellon Foundation ; Small World Institute Fund ; NSF Research Coordination Network [DEB 1046113] ; Division Of Environmental Biology [1464389, 1354741] Funding Source: National Science Foundation
内容类型	期刊论文
源URL	[http://ir.ibcas.ac.cn/handle/2S10CLM1/25919]
专题	植被与环境变化国家重点实验室
作者单位	1.Hubbell, Stephen P.] Univ Calif Los Angeles, Dept Ecol & Evolutionary Biol, Los Angeles, CA 90095 USA 2.Chinese Acad Sci, Inst Bot, State Key Lab Vegetat & Environm Change, Beijing 100093, Peoples R China 3.Comita, Liza S.] Yale Univ, Sch Forestry Environm Studies, New Haven, CT 06511 USA 4.Comita, Liza S.; Hubbell, Stephen P.] Smithsonian Trop Res Inst, Balboa, Ancon, Panama 5.Comita, Liza S.] Ohio State Univ, Dept Ecol Evolut & Organismal Biol, Columbus, OH 43210 USA
推荐引用方式 GB/T 7714	Zhu, Yan,Comita, Liza S.,Hubbell, Stephen P.,et al. Conspecific and phylogenetic density-dependent survival differs across life stages in a tropical forest[J]. JOURNAL OF ECOLOGY,2015,103(4):957-966.
APA	Zhu, Yan,Comita, Liza S.,Hubbell, Stephen P.,&Ma, Keping.(2015).Conspecific and phylogenetic density-dependent survival differs across life stages in a tropical forest.JOURNAL OF ECOLOGY,103(4),957-966.
MLA	Zhu, Yan,et al."Conspecific and phylogenetic density-dependent survival differs across life stages in a tropical forest".JOURNAL OF ECOLOGY 103.4(2015):957-966.