首页|Assembly structures of coastal woody species of eastern South America:Patterns and drivers

Assembly structures of coastal woody species of eastern South America:Patterns and drivers

扫码查看
原文链接
  • NETL
  • NSTL
  • 万方数据
Tropical regions have provided new insights into how ecological communities are assembled.In dry coastal communities,water stress has been hypothesized to determine plant assembly structure by fa-voring preadapted lineages from neighboring ecosystems,consistent with functional clustering.How-ever,it is unclear whether this hypothesis is sufficient to explain how coastal communities in tropical ecosystems are assembled.Here,we test whether water stress or other factors drive community as-sembly in woody plant communities across the coastal zone of Brazil,a tropical ecosystem.We char-acterized functional and phylogenetic structures of these communities and determined the underlying environmental factors(e.g.,water stress,historical climate stability,edaphic constraints,and habitat heterogeneity)that drive their community assembly.Assemblages of coastal woody species show geographically varied patterns,including stochastic arrangements,clustering,and overdispersion of species relative to their traits and phylogenetic relatedness.Topographic complexity,water vapor pressure,and soil nutrient availability best explained the gradient in the functional structure.Water deficit,water vapor pressure,and soil organic carbon were the best predictors of variation in phyloge-netic structure.Our results support the water-stress conservatism hypothesis on functional and phylo-genetic structure,as well as the effect of habitat heterogeneity on functional structure and edaphic constraints on functional and phylogenetic structure.These effects are associated with increased phenotypic and phylogenetic divergence of woody plant assemblages,which is likely mediated by abiotic filtering and niche opportunities,suggesting a complex pattern of ecological assembly.

BrazilCompletenessClusteringRestinga vegetationWater constraints

Eduardo Vinícius da Silva Oliveira、Myrna Friederichs Landim、Sidney F.Gouveia

展开 >

Graduate Program in Ecology and Conservation,Federal University of Sergipe,São Cristóvão,Sergipe,Brazil

National Institute of Science and Technology Ecology,Evolution and Conservation of Biodiversity(INCT-EECBio),Goiânia,Goiás,Brazil

Department of Biology,Federal University of Sergipe,São Cristóvão,Sergipe,Brazil

Department of Ecology,Federal University of Sergipe,São Cristóvão,Sergipe,Brazil

展开 >

2024

10.1016/j.pld.2024.04.006

植物多样性(英文)
中国科学院昆明植物研究所，中国植物学会

植物多样性(英文)

CSTPCD
影响因子：0.617
ISSN：2096-2703
年,卷(期)：2024.46(5)