TY - JOUR
AU - Levin, S A
AB -  This review develops a very general framework for modeling the dynamics of spatially distributed populations, and then utilizes special versions of it to deal with LEVIN particular ecological situations. The basic formulation is straightforward and is in fact borrowed from the classical mathematical description of reacting and diffusing substances (see, for example, 4, 41, 54, 67, 73, 74, 1 1 2, 1 1 3, 1 28, 158, 1 5 9). The approach has been frequently utilized before in an ecological setting. Its value; however, is primarily as a skeleton; it is the specialization to deal with particular situations that allows the discovery or discussion of properties which "emerge" as a result of the introduction of spatial considerations. Although a descriptive framework can be kept in a very general and unspecified form, our own conceptual limitations require a sharper focus before insights arrive. In fact, the potential of the mathematical description to provide this focus is the primary justification for its existence. Such a focusing, however, requires certain interlocking decisions concerning temporal scale, spatial scale, and structural detail; how to make these specifications will depend upon the kinds of questions being examined. The behavior of any system will be 
TI - Population Dynamic Models in Heterogeneous Environments
JF - Annual Review of Ecology, Evolution, and Systematics
DO - 10.1146/annurev.es.07.110176.001443
DA - 1976-11-01
UR - https://www.deepdyve.com/lp/annual-reviews/population-dynamic-models-in-heterogeneous-environments-22FHJ0Q5S4
SP - 287
EP - 310
VL - 7
IS - 1
DP - DeepDyve
ER -