Freitag S, Chown SL, Muller C, Koch S, Hull H, Bellamy C, Kruger M, Endrody-Younga S, Mansell MW, Scholtz CH
A. S. van Jaarsveld, S. Freitag, S. L. Chown, C. Muller, S. Kock, H. Hull, C. H. Scholtz, Department of Zoology and Entomology, University of Pretoria, Pretoria 0002, South Africa. C. Bellamy, M. Kruger, S. Endrody-Younga, Transvaal Museum,
Science. 1998 Mar 27;279(5359):2106-8. doi: 10.1126/science.279.5359.2106.
The efficient representation of all species in conservation planning is problematic. Often, species distribution is assessed by dividing the land into a grid; complementary sets of grids, in which each taxon is represented at least once, are then sought. To determine if this approach provides useful surrogate information, species and higher taxon data for South African plants and animals were analyzed. Complementary species sets did not coincide and overlapped little with higher taxon sets. Survey extent and taxonomic knowledge did not affect this overlap. Thus, the assumptions of surrogacy, on which so much conservation planning is based, are not supported.
在保护规划中对所有物种进行有效表征是个难题。通常，通过将土地划分为网格来评估物种分布；然后寻找互补的网格集，其中每个分类单元至少有一次被代表。为了确定这种方法是否能提供有用的替代信息，对南非动植物的物种和高级分类单元数据进行了分析。互补物种集并不一致，且与高级分类单元集的重叠很少。调查范围和分类学知识并未影响这种重叠。因此，许多保护规划所基于的替代假设并不成立。
