Arid
Rainfall variability and its impact on large mammal populations in a complex of semi-arid African savanna protected areas
Gandiwa, Edson1,2,3,6; Heitkonig, Ignas M. A.1; Eilers, Paul H. C.4; Prins, Herbert H. T.1,5
通讯作者Gandiwa, Edson
来源期刊TROPICAL ECOLOGY
ISSN0564-3295
EISSN2661-8982
出版年2016
卷号57期号:2页码:163-180
英文摘要

We investigated the rainfall patterns and associated fluctuations of wild large herbivore species in the Great Limpopo Transfrontier Conservation Area (GLTFCA), southern Africa. The study objectives were to: (i) establish the synchrony in rainfall and drought occurrence patterns in Gonarezhou National Park, Zimbabwe, and four adjacent areas, and (ii) determine the responses of different large herbivore species’ populations to droughts. We used annual rainfall data collected from the five sites within the GLTFCA and large herbivore population data collected from multispecies aerial surveys in Gonarezhou and Kruger National Park, South Africa. Our results showed that between 1970 and 2009, Gonarezhou recorded three wet years (1977, 1978 and 2000) and six drought years (1973, 1983, 1989, 1992, 1994 and 2005). However, there were some variations in the drought occurrences between Gonarezhou and the four adjacent areas indicating a weak synchrony in rainfall patterns. Furthermore, seven large herbivore species showed dips in their populations associated with the 1992 severe drought, with most of the species’ populations recovering thereafter: Our study suggests that rainfall does have a strong influence on large herbivore population dynamics especially in really dry years in African savanna ecosystems. Our findings underscore the need for further detailed studies on bottom-up processes influencing large herbivore population trends in savanna ecosystems with high rainfall variability.


英文关键词Annual rainfall bottom-up process conservation drought equilibrium systems Great Limpopo Transfrontier Conservation Area non-equilibrium systems
类型Article
语种英语
国家Netherlands ; Zimbabwe ; South Africa
收录类别SCI-E
WOS记录号WOS:000370210700005
WOS关键词GONAREZHOU NATIONAL-PARK ; MASAI-MARA ECOSYSTEM ; LARGE HERBIVORE ; BOTTOM-UP ; TOP-DOWN ; WILDLIFE CONSERVATION ; LAW-ENFORCEMENT ; PLANT PHENOLOGY ; DYNAMICS ; TRENDS
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/2XILL650/196720
作者单位1.Wageningen Univ, Resource Ecol Grp, POB 47, NL-6700 AA Wageningen, Netherlands;
2.Wageningen Univ, Knowledge Technol & Innovat Grp, Hollandseweg 1, NL-6706 KN Wageningen, Netherlands;
3.Gonarezhou Natl Pk, Sci Serv, Private Bag 7003, Chiredzi, Zimbabwe;
4.Wageningen Univ, Biometris Appl Stat, POB 100, NL-6700 AC Wageningen, Netherlands;
5.Univ Kwazulu Natal, Sch Life Sci, Westville Campus,Private Bag X54001, ZA-4000 Durban, South Africa;
6.Chinhoyi Univ Technol, Sch Wildlife Ecol & Conservat, Private Bag 7724, Chinhoyi, Zimbabwe
推荐引用方式
GB/T 7714
Gandiwa, Edson,Heitkonig, Ignas M. A.,Eilers, Paul H. C.,et al. Rainfall variability and its impact on large mammal populations in a complex of semi-arid African savanna protected areas[J],2016,57(2):163-180.
APA Gandiwa, Edson,Heitkonig, Ignas M. A.,Eilers, Paul H. C.,&Prins, Herbert H. T..(2016).Rainfall variability and its impact on large mammal populations in a complex of semi-arid African savanna protected areas.TROPICAL ECOLOGY,57(2),163-180.
MLA Gandiwa, Edson,et al."Rainfall variability and its impact on large mammal populations in a complex of semi-arid African savanna protected areas".TROPICAL ECOLOGY 57.2(2016):163-180.
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