气候变化领域集成服务门户(CCPortal): Effects of extractive use on forest birds in Western Himalayas: Role of local and landscape factors

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DOI	10.1016/j.foreco.2019.06.033
	Effects of extractive use on forest birds in Western Himalayas: Role of local and landscape factors
	Menon T.; Sridhar H.; Shahabuddin G.
发表日期	2019
ISSN	0378-1127
起始页码	457
结束页码	465
卷号	448
英文摘要	Rural populations in developing countries depend on forests for fuelwood, fodder and other non-timber forest products. Such dependence has significant effects on faunal diversity and composition, primarily due to alteration of vegetation structure. While earlier studies have assessed the consequences of extractive activities for forest fauna, very few simultaneously acknowledge the role of landscape context, which includes agricultural land-uses and managed forests. This study was carried out in oak-dominated forests located in the middle elevations of the Western Himalayas to investigate effects of extractive activities on avifaunal communities, taking into account the role of landscape composition. Birds were sampled at 74 sites, six times each, over two seasons using fixed-radius point counts. We analysed avian species richness, abundance, composition and guild abundances (based on foraging and habitat preference) as a function of vegetation structure and proportion of dense oak forest around each site. Our results suggest that extractive activities in forests can result in reduced species richness, abundance and altered composition of forest avifauna, brought about by changes in vegetation structure. We also find that these effects may be intensified by the loss of dense oak forests in the landscape. Insectivorous birds and forest specialists were most sensitive to extractive activities and landscape composition. Decreasing canopy cover and proportion of oak forest in the landscape had strong negative effects on insectivorous and forest specialist species. Other local factors such as vertical stratification and understory density also had effects on these avian guilds. Our study indicates that in order to conserve bird species in an increasingly human-dominated landscape of the Western Himalayas, it may be necessary to control extractive activities that affect forest structure as well as retain protected forest stands within a continuum of harvested forest and agricultural landscapes. © 2019 Elsevier B.V.
英文关键词	Avian guilds; Avifauna; Forest use; Insectivores; Landscape composition
语种	英语
scopus关键词	anthropogenic effect; avifauna; deciduous forest; forest ecosystem; guild structure; insectivore; insectivory; land use location; landscape structure; space use; specialist; stand structure; understory; Himalayas; Aves
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/155861
作者单位	Post-Graduate Program in Wildlife Biology and Conservation, Wildlife Conservation Society-India Program, National Centre for Biological Sciences, GKVK Campus, Bangalore, Karnataka 560065, India; Centre for Ecology, Development and Research, 201/1, Vasant Vihar, Dehradun, Uttarakhand 248006, India; Centre for Ecological Sciences, Indian Institute of Science, Bengaluru, Karnataka 560012, India
推荐引用方式 GB/T 7714	Menon T.,Sridhar H.,Shahabuddin G.. Effects of extractive use on forest birds in Western Himalayas: Role of local and landscape factors[J],2019,448.
APA	Menon T.,Sridhar H.,&Shahabuddin G..(2019).Effects of extractive use on forest birds in Western Himalayas: Role of local and landscape factors.Forest Ecology and Management,448.
MLA	Menon T.,et al."Effects of extractive use on forest birds in Western Himalayas: Role of local and landscape factors".Forest Ecology and Management 448(2019).