Arid
DOI10.1007/s10457-011-9371-x
Folk perception of sexual dimorphism, sex ratio, and spatial repartition: implications for population dynamics of Sclerocarya birrea [(A. Rich) Hochst] populations in Benin, West Africa
Gouwakinnou, Gerard Nounagnon1; Lykke, Anne Mette2; Djossa, Bruno Agossou1; Sinsin, Brice1
通讯作者Gouwakinnou, Gerard Nounagnon
来源期刊AGROFORESTRY SYSTEMS
ISSN0167-4366
EISSN1572-9680
出版年2011
卷号82期号:1页码:25-35
英文摘要

In Sub-Saharan Africa, indigenous fruit trees play vital roles in nutrition and food security particularly, in food shortage times. Sclerocarya birrea subsp. birrea, an indigenous dioecious fruit tree is such a resource with strong multipurpose use characteristics in semi-arid zones of West Africa. We assessed sex ratio, spatial distribution among male and female adult trees using second-order spatial statistics and assessed folk perception of dioecism among the natural populations in protected areas and surrounding agroforestry systems. A field survey showed that 55% of interviewees were aware of sex separation in the species. Some used bark appearance to make distinction between sexes, but this morphological criterion was not consistent with statistical results. The sex ratio did not deviate significantly from 0.5 in any of the districts or land use types. Bivariate spatial analysis with pair correlation function revealed no spatial association between male and female individuals. Moreover, a strict spatial segregation of sexes was not observed even though some individuals of the same sex could sometimes be found together. Results confirmed the functional dioecy of the species and showed that the species did not display any apparent sex-specific dimorphism outside the reproduction period or any apparent sex-specific requirement for environment conditions.


英文关键词Agroforestry Spatial analysis Local perception Dioecious species Spatial segregation of sexes Protected area
类型Article
语种英语
国家Benin ; Denmark
收录类别SCI-E
WOS记录号WOS:000289477000003
WOS关键词TRADITIONAL ECOLOGICAL KNOWLEDGE ; VITELLARIA-PARADOXA ; FRAXINUS-ORNUS ; TREE ; ANDRODIOECY ; DIOECY ; FOREST ; PLANTS ; SIZE ; MANAGEMENT
WOS类目Agronomy ; Forestry
WOS研究方向Agriculture ; Forestry
资源类型期刊论文
条目标识符http://119.78.100.177/qdio/handle/2XILL650/166954
作者单位1.Univ Abomey Calavi, Fac Agron Sci, Lab Appl Ecol, Cotonou, Benin;
2.Aarhus Univ, Natl Environm Res Inst, Dept Terr Ecol, DK-8600 Silkeborg, Denmark
推荐引用方式
GB/T 7714
Gouwakinnou, Gerard Nounagnon,Lykke, Anne Mette,Djossa, Bruno Agossou,et al. Folk perception of sexual dimorphism, sex ratio, and spatial repartition: implications for population dynamics of Sclerocarya birrea [(A. Rich) Hochst] populations in Benin, West Africa[J],2011,82(1):25-35.
APA Gouwakinnou, Gerard Nounagnon,Lykke, Anne Mette,Djossa, Bruno Agossou,&Sinsin, Brice.(2011).Folk perception of sexual dimorphism, sex ratio, and spatial repartition: implications for population dynamics of Sclerocarya birrea [(A. Rich) Hochst] populations in Benin, West Africa.AGROFORESTRY SYSTEMS,82(1),25-35.
MLA Gouwakinnou, Gerard Nounagnon,et al."Folk perception of sexual dimorphism, sex ratio, and spatial repartition: implications for population dynamics of Sclerocarya birrea [(A. Rich) Hochst] populations in Benin, West Africa".AGROFORESTRY SYSTEMS 82.1(2011):25-35.
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