Open AccessA theoretical analysis of population genetics of plants on restored habitats
Author(s) -
A G Bogoliubov,
Craig Loehle
Publication year - 1995
Language(s) - English
Resource type - Reports
DOI - 10.2172/26698
Subject(s) - microevolution , biology , microsite , propagule , genetic diversity , selection (genetic algorithm) , genetic structure , population , evolutionary biology , population genetics , ecology , endangered species , habitat , competition (biology) , genetic variation , genetics , botany , demography , sociology , gene , seedling , artificial intelligence , computer science
Seed and propagules used for habitat restoration are not likely to be closely adapted to local site conditions. Rapid changes of genotypes frequencies on local microsites and/or microevolution would allow plants to become better adapted to a site. These same factors would help to maintain genetic diversity and ensure the survival of small endangered populations. We used population genetics models to examine the selection of genotypes during establishment on restored sites. Vegetative spread was shown to affect selection and significantly reduce genetic diversity. To study general microevolution, we linked a model of resource usage with a genetics model and analyzed competition between genotypes. A complex suite of feasible ecogenetic states was shown to result. The state actually resulting would depend strongly on initial conditions. This analysis indicated that genetic structure can vary locally and can produce overall genetic variability that is not simply the result of microsite adaptations. For restoration activities, the implication is that small differences in seed source could lead to large differences in local genetic structure after selection