Population synchrony and environmental variation: an experimental demonstration
作者： T.G. Benton , C.T. Lapsley , A.P. Beckerman
DOI: 10.1046/J.1461-0248.2001.00225.X
关键词: Food supply 、 Population management 、 Environmental noise 、 Environmental variation 、 Population 、 Population density 、 Ecology 、 Sancassania berlesei 、 Biological dispersal 、 Biology
摘要: Understanding the causes of population synchrony is an important issue for management. Its study in field populations involves disentangling effects dispersal and correlated environmental noise. Here we report on experimental investigation synchronizing noise closed laboratory a soil mite, Sancassania berlesei. Mite life-histories are highly plastic with respect to resource availability (which function food supply density). By varying imposed variation. We show that (a) synchrony, (b) perceived depends life-history stage counted, (c) average tends be lower than synchrony: even when were supplied correlation 1.0, between was 0.63 (bootstrapped 95%CI 0.54–0.71). This supports recent theoretical work suggesting Moran theorem (indicating equals synchrony) generally overestimates nonlinear systems.
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