气候变化领域集成服务门户(CCPortal): Tropical forest management altered abundances of individual tree species but not diversity

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DOI	10.1016/j.foreco.2020.118399
	Tropical forest management altered abundances of individual tree species but not diversity
	Naves R.P.; Grøtan V.; Prado P.I.; Vidal E.; Batista J.L.F.
发表日期	2020
ISSN	0378-1127
卷号	475
英文摘要	In this study, we evaluated tree species abundance distribution in a Brazilian Amazon forest following reduced-impact logging and unlogged plots over two decades. A large body of literature shows changes in species abundance distributions (SADs) after disturbances in many systems and suggests that SADs are a useful tool for monitoring community recovery after impacts. We used Poisson lognormal distribution to described SAD, which has sigma and correlation parameters, for comparing species diversity before logging and over time. Sigma is a measure of alpha diversity and correlation expresses similarity between communities. Contrary to our expectations, we detected no changes for sigma, but correlation showed a decreasing trend, particularly after the first decade. Those changes were due to the increase in the abundance of pioneers and little recruitment of commercial species. Mortality was mainly attributed to the accidental death of non-targeted individuals. Because of the dominant role of random accidental tree deaths, the signature of logging operations was not detected immediately after logging using sigma. Forest management did not cause changes in the abundance structure of communities if we disregard species composition. However, considering species composition, and particularly, which species were common or rare, we did detect changes over time. The trends we have detected might be an early warning of a stronger long term tendency, which could affect abundance distributions. Due to the long lifecycle of trees and their slow growth rate, longer-term studies are needed to understand the impacts of logging on tropical forests. © 2020 Elsevier B.V.
英文关键词	Forest dynamics; Poisson lognormal; Similarity; Species abundance distribution
语种	英语
scopus关键词	Poisson distribution; Population distribution; Tropics; Abundance distribution; Correlation parameters; Logging operations; Poisson-lognormal distribution; Reduced-impact logging; Species abundance distribution; Species composition; Tropical forest management; Forestry; abundance; community structure; disturbance; forest management; growth rate; population distribution; species diversity; tree; tropical forest; Brazil
来源期刊	Forest Ecology and Management
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/155049
作者单位	Departamento de Ciências Florestais, Universidade de São Paulo, Escola Superior de Agricultura ”Luiz de Queiroz”, Av. Padua Dias, 11, Piracicaba, SP 13.418-900, Brazil; Centre for Biodiversity Dynamics, Department of Biology, Norwegian University of Science and Technology, Trondheim, NO-7491, Norway; Departamento de Ecologia, Universidade de São Paulo, São Paulo, Instituto de Biociências, Rua do Matão, Tv. 14 – Butantã, São Paulo, SP 05508-090, Brazil
推荐引用方式 GB/T 7714	Naves R.P.,Grøtan V.,Prado P.I.,et al. Tropical forest management altered abundances of individual tree species but not diversity[J],2020,475.
APA	Naves R.P.,Grøtan V.,Prado P.I.,Vidal E.,&Batista J.L.F..(2020).Tropical forest management altered abundances of individual tree species but not diversity.Forest Ecology and Management,475.
MLA	Naves R.P.,et al."Tropical forest management altered abundances of individual tree species but not diversity".Forest Ecology and Management 475(2020).