𝔖 Bobbio Scriptorium
✦   LIBER   ✦

The first born, their dispersal, and vole cycles

✍ Scribed by J. Gliwicz

Book ID
104720294
Publisher
Springer-Verlag
Year
1990
Tongue
English
Weight
483 KB
Volume
83
Category
Article
ISSN
0029-8549

No coin nor oath required. For personal study only.

✦ Synopsis

On the basis of some empirical data and the existing theory of vole cycles, a new hypothesis is proposed. It explains cyclicity as an effect of obligatory dispersal of the first seasonal cohort of young (Y1) from their natal (optimal) habitats into vacant (suboptimal) habitats. This behaviour could evolve, because it increases contribution of genetic lineages with dispersing Y1, to subsequent generation. It is assumed that the dispersal of Y1 is common among vole species, it does not change during consecutive phases of the cycle, and it does not vary between cyclic and non-cyclic populations. It results in multiannual cycles only under a certain set of spatial and climatic conditions, which are discussed in a paper. Otherwise it results in annual dynamics.

πŸ“œ SIMILAR VOLUMES

First phase of active regions and their
First phase of active regions and their relation to the chromospheric network
✍ R. Born πŸ“‚ Article πŸ“… 1974 πŸ› Springer 🌐 English βš– 499 KB

An analysis of 63 young active regions shows that they originate exclusively on the borders of the chromospheric cells. In most cases they do not produce pores or spots, but always 'arch filament systems' and chromospheric faculae. The 'arch filament systems' evolve along the cell border, they are r