干旱区生态环境知识资源中心(Arid): Indirect effects of African megaherbivore conservation on bat diversity in the world's oldest desert

Arid

DOI	10.1111/cobi.13780
	Indirect effects of African megaherbivore conservation on bat diversity in the world's oldest desert
	Laverty, Theresa M.; Berger, Joel
通讯作者	Laverty, TM (corresponding author), Colorado State Univ, Dept Fish Wildlife & Conservat Biol, 1474 Campus Delivery, Ft Collins, CO 80523 USA.
来源期刊	CONSERVATION BIOLOGY
ISSN	0888-8892
EISSN	1523-1739
出版年	2021-07
英文摘要	In extreme environments, temperature and precipitation are often the main forces responsible for structuring ecological communities and species distributions. The role of biotic interactions is typically thought to be minimal. By clustering around rare and isolated features, like surface water, however, effects of herbivory by desert-dwelling wildlife can be amplified. Understanding how species interact in these environments is critical to safeguarding vulnerable or data-deficient species. We examined whether African elephants (Loxodonta africana), black rhinoceros (Diceros bicornis), and southern giraffe (Giraffa giraffa) modulate insectivorous bat communities around permanent waterholes in the Namib Desert. We estimated megaherbivore use of sites based on dung transects, summarized vegetation productivity from satellite measurements of the normalized difference vegetation index, and surveyed local bat communities acoustically. We used structural equation models to identify relationships among megaherbivores and bat species richness and dry- (November 2016-January 2017) and wet- (February-May 2017) season bat activity. Site-level megaherbivore use in the dry season was positively associated with bat activity-particularly that of open-air foragers-and species richness through indirect pathways. When resources were more abundant (wet season), however, these relationships were weakened. Our results indicate that biotic interactions contribute to species distributions in desert areas and suggest the conservation of megaherbivores in this ecosystem may indirectly benefit insectivorous bat abundance and diversity. Given that how misunderstood and understudied most bats are relative to other mammals, such findings suggest that managers pursue short-term solutions (e.g., community game guard programs, water-point protection near human settlements, and ecotourism) to indirectly promote bat conservation and that research includes megaherbivores' effects on biodiversity at other trophic levels.
英文关键词	Chiroptera food webs foraging guild Namib Desert Namibia structural equation modeling vegetation productivity Chiroptera Desierto del Namib gremio de forrajeo modelado con ecuacion estructural Namibia productividad de la vegetacion redes alimentarias
类型	Article ; Early Access
语种	英语
开放获取类型	hybrid
收录类别	SCI-E
WOS记录号	WOS:000669425400001
WOS关键词	HOANIB RIVER CATCHMENT ; SEASONAL MOVEMENTS ; HOME-RANGE ; ELEPHANTS ; IMPACTS ; COMMUNITIES ; HERBIVORES ; MAMMALS ; TREES ; CONSEQUENCES
WOS类目	Biodiversity Conservation ; Ecology ; Environmental Sciences
WOS研究方向	Biodiversity & Conservation ; Environmental Sciences & Ecology
来源机构	Colorado State University
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/352111
作者单位	[Laverty, Theresa M.; Berger, Joel] Colorado State Univ, Dept Fish Wildlife & Conservat Biol, 1474 Campus Delivery, Ft Collins, CO 80523 USA; [Berger, Joel] Wildlife Conservat Soc, Bronx, NY USA
推荐引用方式 GB/T 7714	Laverty, Theresa M.,Berger, Joel. Indirect effects of African megaherbivore conservation on bat diversity in the world's oldest desert[J]. Colorado State University,2021.
APA	Laverty, Theresa M.,&Berger, Joel.(2021).Indirect effects of African megaherbivore conservation on bat diversity in the world's oldest desert.CONSERVATION BIOLOGY.
MLA	Laverty, Theresa M.,et al."Indirect effects of African megaherbivore conservation on bat diversity in the world's oldest desert".CONSERVATION BIOLOGY (2021).