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印度西高止山Agastyamalai地区生物多样性层隙分析的植被学途径
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作者 B.R.Ramesh Shaily Menon +1 位作者 Kamaljit S.Bawa 罗天祥 《人类环境杂志》 1997年第8期521-528,共8页
在印度,历史上按某种特定方式已建立的保护区一直很少注意到某一地区的资源保护价值。这里着重研究印度西高止山(WG)Agastyamalai地区的保护区群。我们分析了该地区从本世纪初到1960年期间以及从1960年到1990年期间的森林面积减少和土... 在印度,历史上按某种特定方式已建立的保护区一直很少注意到某一地区的资源保护价值。这里着重研究印度西高止山(WG)Agastyamalai地区的保护区群。我们分析了该地区从本世纪初到1960年期间以及从1960年到1990年期间的森林面积减少和土地利用变化。研究中采用GIS技术对该地区的保护区进行了生物多样性层隙分析,绘制了现有植被类型的详细分布图,并利用这一植被图生成了分别与植物种类丰富度、植物特有种分布区、独特的植物生境区以及典型特有动物种群栖息地分布等相对应的多层专题图。将这些专题图与保护区网络分布图相叠加,显示了资源保护价值高但未能合理保护的地区。在这一研究地区出现森林采伐率高,一些生物多样性价值高的地区未列入最高级别的保护对象。我们提出这一方法旨在进一步建立一种资源保护的利用价值指数,以确定资源保护与管理的重点。 展开更多
关键词 印度 西高止山 植被学 Agastyamalai 生物多样性
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Arbuscular mycorrhizal fungal diversity in some commonly occurring medicinal plants of Western Ghats,Goa region 被引量:3
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作者 K.P.Radhika B.F.Rodrigues 《Journal of Forestry Research》 SCIE CAS CSCD 2010年第1期45-52,I0002,共9页
Thirty-six medicinal plant species belonging to 25 families were surveyed to study Arbuscular mycorrhizal (AM) fungal diversity from different localities of North and South Goa of Western Ghats, Goa region, India. A... Thirty-six medicinal plant species belonging to 25 families were surveyed to study Arbuscular mycorrhizal (AM) fungal diversity from different localities of North and South Goa of Western Ghats, Goa region, India. A total of 30 medicinal plant species were found to be mycorrhizal and six plant species showed absence of AM fungal colonization. Forty two AM fungal species belonging to five genera viz., Glomus, Acaulospora, Scutellospora, Gigaspora and Ambispora were recovered from the rhizosphere soil. Glomus was found to be the most dominant genera in the study sites, and Glomus fasciculatum the most dominant AM fungal species. Negative significant correlation was observed between percent colonization and spore density. Simpson's and Shannon Weiner diversity index studies carried out in North and South Goa exhibited less variation in both the sites, indicating a stable and a diverse plant community. 展开更多
关键词 Arbuscular mycorrhizal fungi Glomus medicinal plants Western Ghats Shannon Weiner diversity index spore density
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Foraging ecology of the globally threatened Nilgiri Wood Pigeon(Columba elphinstonii)in the Western Ghats,India
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作者 Sellamuthu SOMASUNDARAM Lalitha VIJAYAN 《Chinese Birds》 2010年第1期9-21,共13页
Foraging ecology of the globally endangered Nilgiri Wood Pigeon(Columba elphinstonii) was investigated in the Western Ghats,India,using faecal sampling and direct observations.The birds fed on fruits of 39 plant speci... Foraging ecology of the globally endangered Nilgiri Wood Pigeon(Columba elphinstonii) was investigated in the Western Ghats,India,using faecal sampling and direct observations.The birds fed on fruits of 39 plant species,on seeds of 11 species,flowers and leaf buds of four species and a few ground invertebrates.Direct observations across seasons showed nine plant species were selected more often(47% of observations),with fruits of the members of the family Lauraceae the most preferred.Gleaning accounted for 76% of feeding methods throughout the year.Feeding was mainly from twigs at the edges on the upper and middle canopy(> 6 m).Frequency of feeding on fruits correlated significantly with fruit abundance,which depended on rainfall.The present study indicates that the pigeon requires a wide variety of diets from different forest environments.Conservation of this species depends on preserving all habitat types required to meet their resource needs throughout the year. 展开更多
关键词 Nilgiri Wood Pigeon Columba elphinstonii foraging ecology Western Ghats INDIA
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