DOI: 10.1016/j.foreco.2012.12.041
Scopus记录号: 2-s2.0-84874355553
论文题名: Doom of the elephant-dependent trees in a Congo tropical forest
作者: Beaune D. ; Fruth B. ; Bollache L. ; Hohmann G. ; Bretagnolle F.
刊名: Forest Ecology and Management
ISSN: 0378-1127
出版年: 2013
卷: 295 起始页码: 109
结束页码: 117
语种: 英语
英文关键词: Congo basin
; Defaunation
; Ecosystem decay
; Loxondota cyclotis
; Poaching
; Seed dispersal
Scopus关键词: Congo basins
; Defaunation
; Loxondota cyclotis
; Poaching
; Seed dispersal
; Conservation
; Space applications
; Forestry
; elephant
; evergreen forest
; extinction
; poaching
; population decline
; recruitment (population dynamics)
; seed dispersal
; spatial distribution
; species diversity
; sustainability
; tropical forest
; Conservation
; Decay
; Ecosystems
; Forestry
英文摘要: In an evergreen lowland rain forest of the Cuvette Centrale, DR Congo, at the LuiKotale Max-Planck research site, forest elephants (Loxodonta cyclotis) are close to extinction. Between January 2009 and June 2011 we investigated the influence of elephant decline on sustainability of elephant-dispersed tree populations.For this, we explored how trees with the megafaunal syndrome reproduce without seed dispersal by elephants and how does this affect the demography and spatial distribution of these tree species. We studied alternative partners for functional replacement of the elephant.Overall. , 18 tree species presenting the megafaunal syndrome were identified and studied. They represent 4.5% of the local tree diversity with a density of 28.2. ±. 2.7. tree/ha. Seventy-eight percent (14/18) of these megafaunal-tree species are elephant-dependent and do not recruit enough young for self replacement, either under the parent or beneath other tree species. For 12 of these species populations, the first cohorts were absent in our plots. For species able to recruit, the spatial structures of the young generations are more clumped than adults while they are not different for control tree species.There is no alternative partner for seed dispersal for the majority of the megafaunal trees which are actually elephant dependent.We discuss the likely consequences of the loss of elephant dispersed tree species and propose alternatives for species survival to bridge the time until efficient conservation strategies take effect. © 2013 Elsevier B.V. Citation statistics:
资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/66667
Appears in Collections: 影响、适应和脆弱性
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作者单位: Max Planck Institute for Evolutionary Anthropology, Department of Primatology, Deutscher Platz 6, Germany; Laboratoire Biogéosciences, UMR CNRS 6282, Université de Bourgogne, 6 bd Gabriel, 21000 Dijon, France; UMR 5175 CEFE, CNRS 1919, Route de Mende, 34293 Montpellier 5, France
Recommended Citation:
Beaune D.,Fruth B.,Bollache L.,et al. Doom of the elephant-dependent trees in a Congo tropical forest[J]. Forest Ecology and Management,2013-01-01,295