Knowledge Resource Center for Ecological Environment in Arid Area
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
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ISSN | 0564-3295 |
EISSN | 2661-8982 |
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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