Hoyle Martin
Department of Life and Environmental Sciences, University of Nottingham, Nottingham NG7 2RD, UK.
Proc Biol Sci. 2004 Jun 7;271(1544):1159-64. doi: 10.1098/rspb.2004.2704.
Using a natural microecosystem, I test the contribution of the metapopulation effect to the species-area relationship, relative to that of the combined effects of habitat heterogeneity and sampling. The relative contributions were approximately equal, but with further relaxation of the fragmented community, the metapopulation effect is expected to increase. Predators had a greater slope to their species-area relationship than non-predators, and the habitat-plus-sampling effect was greater in predators than non-predators. This is the first attempt, to my knowledge, to quantify the causes of the species-area relationship.
利用一个自然微生态系统，我测试了集合种群效应相对于栖息地异质性和抽样综合效应，对物种-面积关系的贡献。相对贡献大致相等，但随着破碎化群落的进一步松弛，预计集合种群效应会增加。捕食者的物种-面积关系斜率比非捕食者更大，并且捕食者的栖息地加抽样效应比非捕食者更大。据我所知，这是首次尝试量化物种-面积关系的成因。
