Article
Genetic differentiation and estimation of effective population size and migration rates in two sympatric ecotypes of the marine snail Littorina saxatilis.
The Journal of heredity - 1 Jan 2000
Fernández J, Galindo J, Fernández B, Pérez-Figueroa A, Caballero A, Rolán-Alvarez E
Abstract excerpt
On exposed rocky shores in Galicia (northwest Spain), a striking polymorphism exists between two ecotypes (RB and SU) of Littorina saxatilis that occupy different levels of the intertidal zone and exhibit an incomplete reproductive isolation. The setting has been suggested to represent ongoing sympatric speciation by ecological adaptation of the two ecotypes to their respective habitats. In this article we...
Topics
- Animals
- Ecosystem
- Emigration and Immigration
- Genetic Variation
- Population Density
- Snails