Arid
DOI10.1016/j.jaridenv.2007.06.011
Importance of woody vegetation for foraging site selection in the Southern Pled Babbler (Turdoides bicolor) under two different land use regimes
Thiele, T.; Jeltsch, F.; Blaum, N.
通讯作者Thiele, T.
来源期刊JOURNAL OF ARID ENVIRONMENTS
ISSN0140-1963
出版年2008
卷号72期号:4页码:471-482
英文摘要

Intensified land use practices have changed savannas worldwide. Both, heavy grazing-induced shrub encroachment and the decrease in tree density due to woodcutting are assumed to reduce animal diversity. However, most studies in animal ecology have focused on the effects of one of these two land use practices. In our study we analyzed the importance of both shrubs and trees, for foraging site selection of the Southern Pied Babbler (Turdoides bicolor) in the Southern Kalahari, South Africa for two different grazing regimes: endemic wildlife at Molopo Nature Reserve versus domestic livestock at neighboring farms. We compared vegetation structure at babbler foraging sites with random sites at the microhabitat scale (5 x 5 m) and the mesohabitat scale (50 x 50 m), and recorded babbler group size and the amount of leaf litter. Our results show for both scales that mean density of shrubs and trees was higher at foraging sites compared to random sites. We found no differences in foraging site characteristics (i.e. vegetation cover at microhabitat scale and composition and density of woody plant species at both scales) and group size between the two grazing regimes. We conclude that shrub encroachment affects the Southern Pied Babbler positively whereas woodcutting has negative effects. (c) 2007 Elsevier Ltd. All rights reserved.


英文关键词arid/semiarid ecosystem birds food availability foraging efficiency shrub encroachment
类型Article
语种英语
国家Germany
收录类别SCI-E
WOS记录号WOS:000254517200018
WOS关键词TERRITORY SIZE ; PREDATION RISK ; ARID SAVANNA ; SHRUB ENCROACHMENT ; ACACIA TREES ; PATCH USE ; KALAHARI ; ABUNDANCE ; FOOD ; DIVERSITY
WOS类目Ecology ; Environmental Sciences
WOS研究方向Environmental Sciences & Ecology
资源类型期刊论文
条目标识符http://119.78.100.177/qdio/handle/2XILL650/157916
作者单位Univ Potsdam, Dept Plant Ecol & Nat Conservat, D-14469 Potsdam, Germany
推荐引用方式
GB/T 7714
Thiele, T.,Jeltsch, F.,Blaum, N.. Importance of woody vegetation for foraging site selection in the Southern Pled Babbler (Turdoides bicolor) under two different land use regimes[J],2008,72(4):471-482.
APA Thiele, T.,Jeltsch, F.,&Blaum, N..(2008).Importance of woody vegetation for foraging site selection in the Southern Pled Babbler (Turdoides bicolor) under two different land use regimes.JOURNAL OF ARID ENVIRONMENTS,72(4),471-482.
MLA Thiele, T.,et al."Importance of woody vegetation for foraging site selection in the Southern Pled Babbler (Turdoides bicolor) under two different land use regimes".JOURNAL OF ARID ENVIRONMENTS 72.4(2008):471-482.
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