干旱区生态环境知识资源中心(Arid): The impact of a massive wildfire event on avian species richness and abundance in an arid African savanna ecosystem

Arid

DOI	10.1016/j.jaridenv.2023.105039
	The impact of a massive wildfire event on avian species richness and abundance in an arid African savanna ecosystem
	Lee, Alan T. K.; Herrmann, Eric; Retief, Ernst F.; van der Westhuizen-Coetzer, Ester; Seymour, Colleen L.
通讯作者	Lee, ATK
来源期刊	JOURNAL OF ARID ENVIRONMENTS
ISSN	0140-1963
EISSN	1095-922X
出版年	2023
卷号	217
英文摘要	Fire shapes ecological diversity, but its influence on bird communities is poorly understood. Fire is often considered crucial to management of savanna systems. Here, we assess effects of fire on bird species richness and density after a wildfire in September 2021, in an arid South African savanna where fire is infrequent. Point counts initially surveyed in 2004 now occurred in burnt and unburnt habitats, and were revisited five times across seasons from December 2021 to January 2023. This enabled identification of interaction effects of change over time and with fire from linear models using site and survey as predictor variables in a Before-After ControlImpact (BACI) framework. Patterns of bird species richness were explored using subsets of repeated points and those of summer to autumn surveys. To explore fire impacts on bird density, we used 'Distance Sampling' using additional surveys. Although total species richness during counts did not differ between survey periods and burnt and unburnt areas, densities of all birds were ca. 50% higher in unburnt veld relative to burnt, with this difference driven mostly by granivores. Three of 24 common species were significantly negatively influenced by fire. Fires may profoundly affect this arid zone bird community, a finding that would be overlooked if only species richness had been considered, and densities not accounted for. Fire, although potentially positive for biodiversity in mesic savannas, may negatively impact multiple taxa in arid savannas, which have a very different evolutionary and ecological history to that of more mesic savannas. These differences must be considered in management strategies.
英文关键词	Arid savanna Avian communities Bird density Conservation biology Long term ecological research Wildfire
类型	Article
语种	英语
开放获取类型	hybrid
收录类别	SCI-E
WOS记录号	WOS:001052585500001
WOS关键词	ACACIA-ERIOLOBA MEYER ; BIRD ASSEMBLAGES ; FIRE ; DIVERSITY ; CONSERVATION ; VEGETATION ; COMMUNITY ; PATTERNS ; RESPONSES ; ECOLOGY
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/2XILL650/397158
推荐引用方式 GB/T 7714	Lee, Alan T. K.,Herrmann, Eric,Retief, Ernst F.,et al. The impact of a massive wildfire event on avian species richness and abundance in an arid African savanna ecosystem[J],2023,217.
APA	Lee, Alan T. K.,Herrmann, Eric,Retief, Ernst F.,van der Westhuizen-Coetzer, Ester,&Seymour, Colleen L..(2023).The impact of a massive wildfire event on avian species richness and abundance in an arid African savanna ecosystem.JOURNAL OF ARID ENVIRONMENTS,217.
MLA	Lee, Alan T. K.,et al."The impact of a massive wildfire event on avian species richness and abundance in an arid African savanna ecosystem".JOURNAL OF ARID ENVIRONMENTS 217(2023).