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Titlebook: Biodiversity Conservation; Problems and Policie C. A. Perrings,K.-G. M?ler,B.-O. Jansson Book 1994 Springer Science+Business Media Dordrech

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21#
發(fā)表于 2025-3-25 05:04:37 | 只看該作者
Population Extinction and the Biodiversity Crisis1rlich, 1961; Ehrlich and Raven, 1969; Masters and Spencer, 1989; Mayr, 1970; Patterson, 1982; Wiley, 1981; Willis, 1981]. This chapter examines the implications of the extinction of populations and attempts to assess its importance relative to the extinction of species.
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發(fā)表于 2025-3-25 10:38:23 | 只看該作者
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發(fā)表于 2025-3-25 12:47:47 | 只看該作者
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發(fā)表于 2025-3-25 19:20:47 | 只看該作者
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發(fā)表于 2025-3-25 22:56:32 | 只看該作者
https://doi.org/10.1007/978-981-19-5807-6e possible and future uses for consumption and industrial production; recreation and ecotourism; control of erosion and sedimentation; and education and research possibilities. The greenhouse effect and concerns about the rich biological diversity in Costa Rica may, in addition, be important to other countries and environmental organisations.
26#
發(fā)表于 2025-3-26 03:03:44 | 只看該作者
https://doi.org/10.1007/978-3-531-91631-6ea system.. The act of protection produces both ecological benefits and direct economic benefits to the local economy. In turn, the generation of economic benefits helps create the political support (and the financial resources) necessary for better management of the protected area.
27#
發(fā)表于 2025-3-26 05:24:14 | 只看該作者
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發(fā)表于 2025-3-26 12:43:19 | 只看該作者
Tropical Wetland Values and Environmental Functionsnalysis of . wetland benefits has been undertaken. Yet recent studies across the developing regions of the world have suggested that tropical wetland systems — whether inland freshwater systems or coastal, mangrove systems — may have a crucial role to play in economic development [see Barbier, 1993b for a review].
30#
發(fā)表于 2025-3-26 18:25:20 | 只看該作者
Book 1994nstitute. The Institute was formed in 1991 in order to promote interdisciplinary research between natural and social scientists on the interdependency between economic and ecological systems. In its first research programme, the Biodiversity Programme, the Institute brought together a number of lead
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