Abstract
After age structure, considered in Sect. 2.5 of Chap. 2, another source of heterogeneity in a population is the fact that individuals are located at different positions in the geographical region occupied by the population. Thus the description of the spatial structure of the population may become important if the habitat is not spatially homogeneous. From the viewpoint of the mechanisms regulating the growth of a population in a spatially structured habitat, we need to model the vital rates as depending on the location and, more essentially, the mechanism regulating the movement of individuals.
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Notes
- 1.
1 Possible ends of the golden age: a) the silver age/ Thus a time comes when the occupied (and oc-cupable) territory does not provide any more the resources necessary to the group, now too large. A first set of solutions are available, those that try to delay, in some way, the end of the golden age, and still give some hope to keep the abundance of resources without working. It is migration (massive and global, though some individual can be left behind) to a new territory …
- 2.
2 Note that by (5.5) D has dimensions [t 2 × t −1] and that \( \xi = \sqrt {\frac{D} {r}} \) is a natural intrinsic unit for space.
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Iannelli, M., Pugliese, A. (2014). Spatial spread of a population. In: An Introduction to Mathematical Population Dynamics. UNITEXT(), vol 79. Springer, Cham. https://doi.org/10.1007/978-3-319-03026-5_5
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