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Extra info for Agriculture and Biodiversity: Developing Indicators for Policy Analysis: Proceedings from an OECD Expert Meeting, Zurich, Switzerland, November 2001
Depending on the actual population size, it is possible to classify the breeds roughly into different status’ of endangerment (Table 2). So changes in a population’s situation can be traced in a more sensitive way than by using the informations of the red list of endangered livestock breeds (GEH, 2001). Figure 4 shows the development of the population sizes of the German native breeds with respect to their status of endangerment. Table 2. Classification of livestock populations Status of endangerment x Critical x Endangered x Vulnerable x Insecure x Normal Source: Bodó, 1992 44 Population size < 100 breeding females 100 – 1,000 breeding females 1,000 – 5,000 breeding females 5,000 – 10,000 breeding females > 10,000 breeding females Figure 4.
Shannon-Weaver Index) seems to be a useful alternative, which is also presented in Figure 8. 3. Number of registered crop varieties The number of registered crop varieties is an indicator corresponding to the OECD proposal. In times of globalization, there are trends of a worldwide distribution of high performance varieties, which seem to increase the national diversity while at the same time global genetic diversity may perhaps decline. Therefore, we propose the varieties classified as either representing the domestic biodiversity and enhancing global diversity or whether they are traded internationally, so that the country does not seem to be responsible for conserving this genetic material.
BF: level of biodiversity most farmers consider appropriate in the absence of any restrictions / remuneration. BS: level of biodiversity that currently exists. BN: biodiversity desired by naturalists and other non-farming interests. Source: Adapted from Bromley (1997). Many countries commonly use a mix of these policy approaches in addressing the biodiversity conservation objective in agriculture. It is apparent, however, that a number of countries are beginning to move toward a more holistic policy approach, by developing national biodiversity strategy plans under the CBD process, which usually incorporate the agricultural sector as a key player in biodiversity conservation.
Agriculture and Biodiversity: Developing Indicators for Policy Analysis: Proceedings from an OECD Expert Meeting, Zurich, Switzerland, November 2001 by Organization for Economic Cooperation &