Destacados
- La Fundación Jaime González-Gordon ofrece cuatro becas para el desarrollo de Trabajos de Fin de Máster sobre Doñana
- Cinco contratos para desarrollar la tesis doctoral en la Estación Biológica de Doñana - CSIC
- Actividades de la Estación Biológica de Doñana en la Noche Europea de los Investigadores
- La ICTS-RBD se prepara para la 30ª Campaña de Anillamiento de Paseriformes Migratorios en Doñana
- Inicio procedimiento nueva dirección EBD-CSIC
Noticias
Size increase without genetic divergence in the Eurasian water shrew Neomys fodiens
When a population shows a marked morphological change, it is important to know whether that population is genetically distinct; if it is not, the novel trait could correspond to an adaptation that might be of great ecological interest. Here, a subspecies of water shrew, Neomys fodiens niethammeri, which is found in a narrow strip of the northern Iberian Peninsula was studied. This subspecies presents an abrupt increase in skull size when compared to the rest of the Eurasian population, which has led to the suggestion that it is actually a different species. Skulls obtained from owl pellets collected over the last 50 years allowed performing a morphometric analysis in addition to an extensive multilocus analysis based on short intron fragments successfully amplified from these degraded samples. Interestingly, no genetic divergence was detected using either mitochondrial or nuclear data. Additionally, an allele frequency analysis revealed no significant genetic differentiation. The absence of genetic divergence and differentiation revealed here indicate that the large form of N. fodiens does not correspond to a different species and instead represents an extreme case of size increase, of possible adaptive value, which deserves further investigation. informacion[at]ebd.csic.es: Balmori-de la Puente et al (2019) Size increase without genetic divergence in the Eurasian water shrew Neomys fodiens. Sci Rep doi:10.1038/s41598-019-53891-y
https://www.nature.com/articles/s41598-019-53891-y- Laboratorio de Ecología Molecular
- Laboratorio SIG y Teledetección (LAST)
- Laboratorio de Ecología Química
- Laboratorio de Ecología Acuática
- Laboratorio de Ecofisiología
- Laboratorio de Isótopos Estables
- Unidad de Experimentación Animal
- Visita virtual
- Unidad de Seguimiento
- Laboratorio de Camaras climaticas