干旱区生态环境知识资源中心(Arid): Understanding arid-region waterbird community dynamics during lake dry-downs

Arid

DOI	10.1002/ecs2.3668
	Understanding arid-region waterbird community dynamics during lake dry-downs
	Cumming, Graeme S.; Henry, Dominic A. W.; Mutumi, Gregory L.; Ndlovu, Mduduzi
通讯作者	Cumming, GS (corresponding author), Univ Cape Town, DST NRF Ctr Excellence, FitzPatrick Inst, ZA-7701 Rondebosch, South Africa. ; Cumming, GS (corresponding author), James Cook Univ, ARC Ctr Excellence Coral Reef Studies, Townsville, Qld 4811, Australia.
来源期刊	ECOSPHERE
ISSN	2150-8925
出版年	2021
卷号	12 期号:8
英文摘要	The community dynamics of organisms that exhibit multi-scale responses to habitat change are poorly understood. We quantified changes in species diversity and the functional composition of a waterbird community over two iterations of a repeated transition, the annual drying-down of arid-region Lake Ngami, Botswana. We used our data to test three theoretical predictions: simplification of the bird community over time due to a reduction in habitat area and concurrent niche loss; large fluctuations in densities of mobile, opportunistic species; and high variance in predator and prey abundance. Despite temporal variance in species accumulation, we observed no obvious simplification and distinct but consistent groupings of abundance and composition across transitional stages. There were some rapid shifts in functional composition, such as loss of deepwater foragers; winners and losers also occurred within foraging guilds. We conclude that understanding community-level trends during transitional periods will require stronger theoretical frameworks that more effectively integrate unique species traits and functional groups. For conservation managers, our study offers a cautionary tale of the importance of understanding connectivity, trajectories of change, and the potential for large fluctuations in animal communities independent of management actions during periods of ecological transition.
英文关键词	Africa bird Botswana disturbance drought regime shift resilience wetland
类型	Article
语种	英语
开放获取类型	gold
收录类别	SCI-E
WOS记录号	WOS:000689453800039
WOS关键词	RESOURCE PULSES ; FORAGING GUILD ; STABILITY ; RESPONSES ; POPULATIONS ; AUSTRALIA ; LOCATION
WOS类目	Ecology
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/2XILL650/363045
作者单位	[Cumming, Graeme S.; Henry, Dominic A. W.; Mutumi, Gregory L.; Ndlovu, Mduduzi] Univ Cape Town, DST NRF Ctr Excellence, FitzPatrick Inst, ZA-7701 Rondebosch, South Africa; [Cumming, Graeme S.] James Cook Univ, ARC Ctr Excellence Coral Reef Studies, Townsville, Qld 4811, Australia; [Henry, Dominic A. W.] Endangered Wildlife Trust, ZA-1685 Johannesburg, South Africa; [Henry, Dominic A. W.] Univ Cape Town, Dept Stat Sci, Stat Ecol Environm & Conservat, ZA-7701 Cape Town, South Africa; [Mutumi, Gregory L.] Univ Calif Merced, Life & Environm Sci, Merced, CA USA; [Ndlovu, Mduduzi] Univ Mpumalanga, Sch Biol & Environm Sci, ZA-1200 Nelspruit, South Africa
推荐引用方式 GB/T 7714	Cumming, Graeme S.,Henry, Dominic A. W.,Mutumi, Gregory L.,et al. Understanding arid-region waterbird community dynamics during lake dry-downs[J],2021,12(8).
APA	Cumming, Graeme S.,Henry, Dominic A. W.,Mutumi, Gregory L.,&Ndlovu, Mduduzi.(2021).Understanding arid-region waterbird community dynamics during lake dry-downs.ECOSPHERE,12(8).
MLA	Cumming, Graeme S.,et al."Understanding arid-region waterbird community dynamics during lake dry-downs".ECOSPHERE 12.8(2021).