Bersier L F, Sugihara G
Scripps Institution of Oceanography 0202, University of California at San Diego, La Jolla, CA 92093, USA.
Proc Natl Acad Sci U S A. 1997 Feb 18;94(4):1247-51. doi: 10.1073/pnas.94.4.1247.
The robustness of eight common food web properties is examined with respect to web size. We show that the current controversy concerning the scale dependence or scale invariance of these properties can be resolved by accounting for scaling constraints introduced by webs of very small size. We demonstrate statistically that the most robust way to view these properties is not to lump webs of all sizes, but to divide them into two distinct categories. For the present data set, small webs containing 12 or fewer species exhibit scale dependence, and larger webs containing more than 12 species exhibit scale invariance.
针对食物网大小，研究了八种常见食物网属性的稳健性。我们表明，通过考虑极小食物网引入的缩放约束，可以解决当前关于这些属性的尺度依赖性或尺度不变性的争议。我们通过统计证明，看待这些属性最稳健的方式不是将所有大小的食物网混为一谈，而是将它们分为两个不同的类别。对于当前数据集，包含12个或更少物种的小食物网表现出尺度依赖性，而包含超过12个物种的大食物网表现出尺度不变性。
