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DOI	10.1016/j.foreco.2020.118704
	Landscape composition is more important than local vegetation structure for understory birds in cocoa agroforestry systems
	Cabral J.P.; Faria D.; Morante-Filho J.C.
发表日期	2021
ISSN	0378-1127
卷号	481
英文摘要	Biodiversity-friendly agricultural systems allow the maintenance of native species even in highly fragmented landscapes by providing corridors to species dispersion and offering supplementary resources for animal populations. In the tropical region, cocoa agroforestry systems are of great importance for biodiversity conservation as they maintain part of the native vegetation, and therefore can be used by the local fauna. In this system, understory of native forests is replaced by cocoa trees, which are shaded by large old-growth trees. However, the persistence of native species in cocoa agroforests depends on local vegetation characteristics but also the landscape structure in which these systems are located. Here, we investigated the influence of landscape composition (i.e. amount of forest cover, cocoa agroforestry and cattle pasture) and local vegetation structure (i.e. number of native and cocoa trees, basal area of native trees and canopy closure) on understory birds in 18 cocoa agroforestry systems located in three regions in the Brazilian Atlantic forest, presenting distinct land use contexts. Specifically, we assessed the effects of these landscape and local features in predicting richness and abundance patterns of the entire community, and also in distinct ecological groups, such as forest-dependent and non-forest-dependent birds, and insectivores, frugivores, and omnivores. Using generalized linear models and Akaike information criterion, we observed lower species richness of complete community, non-forest and omnivorous birds in the most deforested region. Also, our findings demonstrated that cocoa agroforests integrated in more forested landscapes harbor greater richness and abundance of frugivorous birds. Conversely, the increase in cattle pasture amount at the landscape had a harsh effect on all bird groups evaluated. Regarding local vegetation, we observed that the increase of canopy closure leads to greater abundance of insectivorous birds in cocoa agroforestry systems. Similarly, abundance of non-forest species increased in agroforests with higher number of cocoa trees. Our study demonstrated that cocoa agroforestry systems can provide complementary habitats for many species, including forest birds, and therefore can mitigate the effects of habitat loss. However, this key benefit for bird conservation will be more effective when these agroforestry systems are located in more forested landscapes, with low amount of cattle pastures. Our findings therefore reinforce the alarming need to maintain and recover landscape-scale forest amount to ensure species persistence of birds in anthropogenic landscapes, even in those comprising biodiversity-friendly land uses such as cocoa agroforestry systems. © 2020 Elsevier B.V.
英文关键词	Agrosystems; Anthropogenic landscapes; Avifauna; Fragmentation; Habitat loss; Tropical forest
语种	英语
scopus关键词	Agricultural robots; Biodiversity; Birds; Cocoa; Conservation; Ecosystems; Land use; Vegetation; Akaike information criterion; Biodiversity conservation; Brazilian Atlantic forests; Fragmented landscapes; Generalized linear model; Landscape composition; Landscape structures; Vegetation structure; Forestry; agroforestry; biodiversity; bird; cocoa; landscape structure; native species; species richness; tree; tropical region; understory; vegetation structure; Biodiversity; Birds; Conservation; Ecosystems; Land Use; Plants; Atlantic Forest; Brazil; Animalia; Aves; Bos; Theobroma cacao
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/154820
作者单位	Applied Conservation Ecology Lab, Programa de Pós-graduação em Ecologia e Conservação da Biodiversidade, Universidade Estadual de Santa Cruz, Rodovia Ilhéus-Itabuna, km 16, Salobrinho, Ilhéus, Bahia 45662-000, Brazil
推荐引用方式 GB/T 7714	Cabral J.P.,Faria D.,Morante-Filho J.C.. Landscape composition is more important than local vegetation structure for understory birds in cocoa agroforestry systems[J],2021,481.
APA	Cabral J.P.,Faria D.,&Morante-Filho J.C..(2021).Landscape composition is more important than local vegetation structure for understory birds in cocoa agroforestry systems.Forest Ecology and Management,481.
MLA	Cabral J.P.,et al."Landscape composition is more important than local vegetation structure for understory birds in cocoa agroforestry systems".Forest Ecology and Management 481(2021).