干旱区生态环境知识资源中心(Arid): Factors determining species richness patterns of breeding birds along an elevational gradient in the Horn of Africa region

Arid

DOI	10.1002/ece3.5491
	Factors determining species richness patterns of breeding birds along an elevational gradient in the Horn of Africa region
	Abebe, Ahunim Fenitie 1,2,3; Cai, Tianlong 1,3; Wale, Melaku 4; Song, Gang 1; Fjeldsa, Jon 5; Lei, Fumin 1,3,6
通讯作者	Fjeldsa, Jon ; Lei, Fumin
来源期刊	ECOLOGY AND EVOLUTION
ISSN	2045-7758
出版年	2019
卷号	9 期号:17 页码:9609-9623
英文摘要	Aim To document the species richness patterns of breeding birds along elevational gradients and explore its drivers in the Horn of Africa region. Location Horn of Africa region. Taxon Breeding birds. Methods Distributional data for breeding birds were collected. Elevational distribution data were extracted, interpolated, and assembled for all birds, passerines, and nonpasserines. In order to tease apart how different environmental factors contributed to the variation in species richness, we found it is necessary to divide the area into four subregions with different climatic regimes and topographic structure, namely western slope, eastern slope, wet side, and dry side. Then, the species richness in each 100-m elevational band was counted along the elevational gradients of each subregion. Pearson's correlation analyses and ordinary least squares (OLS) regressions were used to examine the relationships between species richness and factors. Results The variation in species richness followed hump-shaped patterns for all subregions, although with peak values at different elevations. The bird species groups on the western and eastern slopes showed low and high plateaus with mid-elevation peaks, respectively, but very low species diversities at the highest elevations. Species richness was significantly correlated with temperature range and productivity in each subregion. The temperature range, area, and productivity explained 82% of the species richness variations for all birds on the western slope. Main conclusions The separate analyses of four area subdivisions provide strong indications of how various factors interact. Productivity and temperature range were the major driving factors for shaping the richness patterns, but deviations from expected patterns suggest modifying roles of mist formation zones in the valleys that deeply intersect the large highlands in the west and rich riparian vegetation where water from cool and humid environments at high elevation reaches lower elevations in the arid east. Conservation is recommended in each subregion based on the elevational richness scenarios.
英文关键词	breeding birds climate elevational gradients horn of Africa mountain productivity species richness
类型	Article
语种	英语
国家	Peoples R China ; Ethiopia ; Denmark
开放获取类型	Green Published, gold
收录类别	SCI-E
WOS记录号	WOS:000479947000001
WOS关键词	CLIMATE-CHANGE ; BIODIVERSITY HOTSPOTS ; PRIMARY PRODUCTIVITY ; DIVERSITY PATTERNS ; GLOBAL ANALYSIS ; AREA ; VEGETATION ; SCALE ; SPACE ; WATER
WOS类目	Ecology ; Evolutionary Biology
WOS研究方向	Environmental Sciences & Ecology ; Evolutionary Biology
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/215279
作者单位	1.Chinese Acad Sci, Inst Zool, Key Lab Zool Systemat & Evolut, Beijing, Peoples R China; 2.Assosa Univ, Fac Nat & Computat Sci, Dept Biol, Assosa, Ethiopia; 3.Univ Chinese Acad Sci, Beijing, Peoples R China; 4.Bahir Dar Univ, Coll Sci, Bahir Dar, Ethiopia; 5.Univ Copenhagen, Nat Hist Museum Denmark, Ctr Macroecol Evolut & Climate, DK-2100 Copenhagen, Denmark; 6.Chinese Acad Sci, Ctr Excellence Anim Evolut & Genet, Kunming, Yunnan, Peoples R China
推荐引用方式 GB/T 7714	Abebe, Ahunim Fenitie,Cai, Tianlong,Wale, Melaku,et al. Factors determining species richness patterns of breeding birds along an elevational gradient in the Horn of Africa region[J],2019,9(17):9609-9623.
APA	Abebe, Ahunim Fenitie,Cai, Tianlong,Wale, Melaku,Song, Gang,Fjeldsa, Jon,&Lei, Fumin.(2019).Factors determining species richness patterns of breeding birds along an elevational gradient in the Horn of Africa region.ECOLOGY AND EVOLUTION,9(17),9609-9623.
MLA	Abebe, Ahunim Fenitie,et al."Factors determining species richness patterns of breeding birds along an elevational gradient in the Horn of Africa region".ECOLOGY AND EVOLUTION 9.17(2019):9609-9623.