Watemelon 发表于 2025-3-28 16:50:27

https://doi.org/10.1007/978-3-663-01862-9e 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.

典型 发表于 2025-3-28 21:36:04

,Beispiele für die Kristallarten,s, and in assuring their ability to continue to function under different conditions. Moreover, there are very few economic indicators of the relative scarcity of individual organisms, and almost no reliable indicators of the value of the mix of organisms. Indeed, economists have hardly begun to grap

ATP861 发表于 2025-3-29 00:31:29

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bourgeois 发表于 2025-3-29 05:42:03

E. W. Fischer,F. H. Müller,H. H. Kauschses as to how their biological diversity has been changed. In virtually all rangelands, however, advances in technology (water development, disease control, improved breeds, etc.) have led to concern over extensive degradation — epitomised by the well-publicised changes in the Sahel, but perceived t

剧本 发表于 2025-3-29 07:44:19

Biodiversity Conservation and Economic Development: The Policy Problems, and in assuring their ability to continue to function under different conditions. Moreover, there are very few economic indicators of the relative scarcity of individual organisms, and almost no reliable indicators of the value of the mix of organisms. Indeed, economists have hardly begun to grap

Gratulate 发表于 2025-3-29 12:05:03

Biodiversity Conservation and Economic Development: Local and Global Dimensionse, ‘existence value’, captures the sense of the ‘intrinsic value’ of biological resources referred to in the convention . While the use value of biotic resources is determined in the same way as the value in use of any other resources — by reference to the social opportunity

排他 发表于 2025-3-29 16:18:46

Rangeland Ecology: Managing Change in Biodiversityses as to how their biological diversity has been changed. In virtually all rangelands, however, advances in technology (water development, disease control, improved breeds, etc.) have led to concern over extensive degradation — epitomised by the well-publicised changes in the Sahel, but perceived t

APO 发表于 2025-3-29 22:53:11

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上下倒置 发表于 2025-3-30 00:51:17

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Irrepressible 发表于 2025-3-30 06:13:17

Population Extinction and the Biodiversity Crisisy one aspect of the extinction crisis, and in many parts of the world may not be the most important facet of the decay of biological diversity. The focus among biologists upon the conservation of species [see, for example, Pimm and Gittleman, 1992; Reid and Miller, 1989; Scott .., 1987; Wilson, 1989
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查看完整版本: Titlebook: Biodiversity Conservation; Problems and Policie C. A. Perrings,K.-G. Mäler,B.-O. Jansson Book 1995 Springer Science+Business Media Dordrech