干旱区生态环境知识资源中心(Arid): Large herbivore conservation in a changing world: Surface water provision and adaptability allow wildebeest to persist after collapse of long-range movements

Arid

DOI	10.1111/gcb.15044
	Large herbivore conservation in a changing world: Surface water provision and adaptability allow wildebeest to persist after collapse of long-range movements
	Weeber, Joshua 1,2; Hempson, Gareth P.3,4; February, Edmund C.1
通讯作者	Hempson, Gareth P.
来源期刊	GLOBAL CHANGE BIOLOGY
ISSN	1354-1013
EISSN	1365-2486
出版年	2020
卷号	26 期号:5 页码:2841-2853
英文摘要	Large herbivores, particularly wide-ranging species, are extensively impacted by land use transformation and other anthropogenic barriers to movement. The adaptability of a species is, therefore, crucial to determining whether populations can persist in ever smaller subsets of their historical home ranges. Access to water, by drinking or from forage moisture, is an essential requirement, and surface water provision is thus a long-established, although controversial, conservation practice. In the arid Kgalagadi Transfrontier Park (KTP), South Africa, surface water provision in the 1930s facilitated the establishment of a sedentary wildebeest (Connochaetes taurinus) population in a region historically accessed only in the wet season, via now collapsed long-distance movements. Here, we investigate the behaviour and diet of this wildebeest population, and how these relate to water in the landscape, to better understand the process of transitioning from a mobile to sedentary population. Data from 26 monthly surveys reveal that wildebeest distributions are shaped by water availability and salinity, shade, forage, season and possibly predator detectability. Areas with saline or no water are used predominantly in the wet season when forage moisture is high. Wet season movements beyond the study area mean the timing of wildebeest grazing in these regions matches historical timing. Grass utilization field data suggest that the KTP grazer population experiences forage deficits during the dry season, when ~80% of grass tufts are grazed and C:N and crude protein levels decline. Nonetheless, dung isotope data show that wildebeest meet their crude protein intake requirements during the dry season, likely by consuming unprecedentedly high levels of browse (>33%). While restoring the full historical range and movements of most large herbivore populations is not possible, these findings highlight that understanding the behavioural and dietary adaptability of a species can augment 'next best' efforts to conserve viable populations while home ranges contract.
英文关键词	adaptability census data conservation diet isotope analysis land use change large herbivore migration surface water provision wildebeest
类型	Article
语种	英语
国家	South Africa
收录类别	SCI-E
WOS记录号	WOS:000526102300011
WOS关键词	KRUGER-NATIONAL-PARK ; RESOURCE HETEROGENEITY ; HABITAT SELECTION ; AFRICAN SAVANNA ; BLUE WILDEBEEST ; POPULATION ; KALAHARI ; MIGRATION ; WILDLIFE ; CONSEQUENCES
WOS类目	Biodiversity Conservation ; Ecology ; Environmental Sciences
WOS研究方向	Biodiversity & Conservation ; Environmental Sciences & Ecology
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/314632
作者单位	1.Univ Cape Town, Dept Biol Sci, Cape Town, South Africa; 2.Univ Cape Town, Dept Environm & Geog Sci, Cape Town, South Africa; 3.Univ Witwatersrand, Sch Anim Plant & Environm Sci, Ctr African Ecol, Johannesburg, South Africa; 4.Ndlovu Node, SAEON, Phalaborwa Gate, South Africa
推荐引用方式 GB/T 7714	Weeber, Joshua,Hempson, Gareth P.,February, Edmund C.. Large herbivore conservation in a changing world: Surface water provision and adaptability allow wildebeest to persist after collapse of long-range movements[J],2020,26(5):2841-2853.
APA	Weeber, Joshua,Hempson, Gareth P.,&February, Edmund C..(2020).Large herbivore conservation in a changing world: Surface water provision and adaptability allow wildebeest to persist after collapse of long-range movements.GLOBAL CHANGE BIOLOGY,26(5),2841-2853.
MLA	Weeber, Joshua,et al."Large herbivore conservation in a changing world: Surface water provision and adaptability allow wildebeest to persist after collapse of long-range movements".GLOBAL CHANGE BIOLOGY 26.5(2020):2841-2853.