Effects of a regenerating matrix on the survival of birds in tropical forest fragments

作     者：Jared D.Wolfe Philip C.Stouffer Richard O.Bierregaard Jr David A.Luther Thomas E.Lovejoy Jared D. Wolfe;Philip C. Stouffer;Richard O. Bierregaard Jr;David A. Luther;Thomas E. Lovejoy

作者机构：College of Forest Resources and Environmental ScienceMichigan Technological UniversityHoughtonMI 49931USA Biological Dynamics of Forest Fragments ProjectInstituto Nacional de Pesquisas da AmazoiaManaus 69011Brazil College of Renewable Natural ResourcesLouisiana State University AgCenterLouisiana State UniversityBaton RougeLA 70803USA Biology DepartmentGeorge Mason University4400 University Drive MS3EFairfaxVA 22030USA 

出 版 物：《Avian Research》 (鸟类学研究（英文版）)

年 卷 期：2020年第11卷第1期

页      面：16-24页

核心收录：

学科分类：0710[理学-生物学] 0830[工学-环境科学与工程（可授工学、理学、农学学位）] 07[理学] 0905[农学-畜牧学] 0906[农学-兽医学] 0713[理学-生态学] 

基　　金：a US National Science Foundation(LTREB 0545491)grant American Ornithologsts’Union research grant 

主　　题：Amazon fragmentation Brazil Matrix Second growth Survival Tropical bird 

摘      要：Background: Vast areas of lowland neotropical forest have regenerated after initially being cleared for agricultural purposes. The ecological value of regenerating second growth to forest-dwelling birds may largely depend on the age of the forest, associated vegetative structure, and when it is capable of sustaining avian demographics similar to those found in pristine ***: To determine the influence of second growth age on bird demography, we estimated the annual survival of six central Amazonian bird species residing in pristine forest, a single 100 and a single 10 ha forest fragment, taking into consideration age of the surrounding matrix(i.e. regenerating forest adjacent to each fragment) as an explanatory ***: Study species exhibited three responses: arboreal, flocking and ant-following insectivores(Willisornis poecilinotus, Thamnomanes ardesiacus and Pithys albifrons) showed declines in survival associated with fragmentation followed by an increase in survival after 5 years of matrix regeneration. Conversely, Percnostola rufifrons, a gap-specialist, showed elevated survival in response to fragmentation followed by a decline after 5 years of regeneration. Lastly, facultative flocking and frugivore species(Glyphorynchus spirurus and Dixiphia pipra, respectively) showed no response to adjacent clearing and subsequent ***: Our results in association with previous studies confirm that the value of regenerating forest surrounding habitat patches is dependent on two factors: ecological guild of the species in question and second growth age. Given the rapid increase in survival following succession, we suggest that the ecological value of young tropical forest should not be based solely on a contemporary snapshot, but rather, on the future value of mature second growth as well.