DOI: 10.1016/j.foreco.2013.10.017
Scopus记录号: 2-s2.0-84888128246
论文题名: Relationships between ramet and genet dynamics in two clonal palms
作者: Kouassi K.I. ; Barot S. ; Laossi K.-R. ; Gignoux J. ; Zoro Bi I.A.
刊名: Forest Ecology and Management
ISSN: 0378-1127
出版年: 2014
卷: 312 起始页码: 101
结束页码: 107
语种: 英语
英文关键词: Clonal growth
; Demography
; Genet
; Ramet
; Ramet harvest
; Rattans
Scopus关键词: Clonal growth
; Demography
; Genet
; Ramet
; Rattans
; Harvesting
; Population dynamics
; Population statistics
; Clone cells
; clonal growth
; competition (ecology)
; genet
; life history trait
; ramet
; recruitment (population dynamics)
; reproductive strategy
; retrogression
; rhizome
; tree
; Calamus rotang
; Eremospatha macrocarpa
; Laccosperma
英文摘要: Eremospatha macrocarpa and Laccosperma secundiflorum are two clonal rattan species: through vegetative reproduction each individual, i.e. each genet, may produce several stems that are linked to the same rhizome. To determine the impact of ramet harvest by local human populations in these species, we compared the demography of their ramets and studied the impact of the dynamics of their ramets on the demography of their genets. This also allowed a better analyze of their life-history and demography. Genets were classified in development stages. We counted for each genet the number of alive, new, dead and harvested ramets. We determined the impact of the number of ramets and changes in this number on the genet probability of survival, retrogression and recruitment. Ramet demography differed between the two rattan species. The average numbers of new, harvested and dead ramets are about two times higher in E. macrocarpa than in L. secundiflorum. Furthermore, ramet demography influenced genet demography in both species. The survival of adult genets in E. macrocarpa and juvenile genets in L. secundiflorum increased with the initial number of ramets (about 10% between the lower and higher ramet numbers). The genet probability of retrogression increased in L. secundiflorum and decreased in E. macrocarpa with the initial number of ramets. These results suggest the existence of some physiological integration between the ramets of the two rattan species which leads to some cooperation and competition between ramets, within a genet, and to the compensatory production of new ramets after harvest. Overall, for both species, the links between ramet and genet demography suggest that ramet harvest, at the present harvesting rate, is not detrimental to the studied rattan populations. © 2013 Elsevier B.V. Citation statistics:
资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/66199
Appears in Collections: 影响、适应和脆弱性
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作者单位: Laboratoire de Génomique Fonctionnelle et Amélioration Génétique, Université Nangui Abrogoua, UFR des Sciences de la Nature, 02 BP 801, Abidjan 02, Cote d'Ivoire; IRD, BIOEMCO (UMR 7618), Ecole Normale Supérieure, 46 Rue d'Ulm, 75230 Paris Cedex 05, France; Agronomy Department, Nestlé R and D Centre Abidjan, 01 BP 11356, Abidjan 01, Cote d'Ivoire; CNRS, BIOEMCO (UMR 7618), Ecole Normale Supérieure, 46 Rue d'Ulm, 75230 Paris Cedex 05, France
Recommended Citation:
Kouassi K.I.,Barot S.,Laossi K.-R.,et al. Relationships between ramet and genet dynamics in two clonal palms[J]. Forest Ecology and Management,2014-01-01,312