干旱区生态环境知识资源中心(Arid): Effects on birds of the conversion of savannah to farmland in the Sahel: habitats are lost, but not everywhere and not for all species

Arid

DOI	10.5253/arde.2022.a24
	Effects on birds of the conversion of savannah to farmland in the Sahel: habitats are lost, but not everywhere and not for all species
	Zwarts, Leo; Bijlsma, Rob G.; Van der Kamp, Jan
通讯作者	Zwarts, L
来源期刊	ARDEA
ISSN	0373-2266
EISSN	2213-1175
出版年	2023
卷号	111 期号:1 页码:251-268
英文摘要	Many migratory bird species, several of which are in severe decline, and African residents spend the northern winter in the Sahel, by nature a huge savannah, half of which has been converted into farmland. We analyse the impact of such large-scale changes on birds. On average, woody cover is 38% lower on farmland than on savannah. More critically, farmers have drastically changed the vegetation communities of their farmland. In the arid and semi-arid zone, they partly removed bird-rich trees such as Umbrella Thorn Acacia tortilis and Desert Date Balanites aegyptiaca, yet further south they created a richer bird habitat by replacing the original woody species by Winter Thorn Faidherbia albida, a preferred tree species for Afro-Palearctic migrants (but less so for Afro-tropical residents). Still further south, two bird-poor trees, Shea Tree Vitellaria paradoxa and African Locust Bean Tree Parkia biglobosa, dominate farmland, causing birds, mainly Afro-tropical residents, to lose habitat. As a consequence of farming, arboreal migrants are confronted with habitat degradation in the northern arid zone and in the southern humid zone, but face more favourable wintering conditions in the sub-humid central zone. Ground-foraging birds are more abundant on savannah than on farmland; 24 bird species from this group, including three wheatear species and many residents, are more than twice as abundant on savannah. Conversion of savannah into farmland has mixed outcomes for ground-foraging birds, but were generally negative except for five species ( including Western Yellow Wagtail Motacilla flava) which were more than twice as abundant on farmland than on savannah. Thus, the conversion of savannah into farmland represents a loss for many but not all bird species.
英文关键词	Sahel savannah farmland Faidherbia albida Acacia tortilis Shea Tree
类型	Article
语种	英语
开放获取类型	Bronze
收录类别	SCI-E
WOS记录号	WOS:001028733200011
WOS关键词	DOVES STREPTOPELIA-TURTUR ; AGRICULTURAL LAND-USE ; AFRICA ; COVER ; BIODIVERSITY ; DETERMINANTS ; FORMICIDAE ; PATTERNS ; BEHAVIOR ; RAPTORS
WOS类目	Ornithology
WOS研究方向	Zoology
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/395444
推荐引用方式 GB/T 7714	Zwarts, Leo,Bijlsma, Rob G.,Van der Kamp, Jan. Effects on birds of the conversion of savannah to farmland in the Sahel: habitats are lost, but not everywhere and not for all species[J],2023,111(1):251-268.
APA	Zwarts, Leo,Bijlsma, Rob G.,&Van der Kamp, Jan.(2023).Effects on birds of the conversion of savannah to farmland in the Sahel: habitats are lost, but not everywhere and not for all species.ARDEA,111(1),251-268.
MLA	Zwarts, Leo,et al."Effects on birds of the conversion of savannah to farmland in the Sahel: habitats are lost, but not everywhere and not for all species".ARDEA 111.1(2023):251-268.