How is metapopulation resilience affected by longitudinal connectivity? A criterion for the restoration of river networks

Alonso González, Carlos; Garcia De Jalon Lastra, Diego y Roa, Juan (2015). How is metapopulation resilience affected by longitudinal connectivity? A criterion for the restoration of river networks. En: "International Conference on River and StreamRestoration. Novel Approaches to Assess and Rehabilitate Modified Rivers.", 30 Jun - 2 Jul 2015, Wageningen, Países Bajos. p. 86.

Descripción

Título: How is metapopulation resilience affected by longitudinal connectivity? A criterion for the restoration of river networks
Autor/es:
  • Alonso González, Carlos
  • Garcia De Jalon Lastra, Diego
  • Roa, Juan
Tipo de Documento: Ponencia en Congreso o Jornada (Artículo)
Título del Evento: International Conference on River and StreamRestoration. Novel Approaches to Assess and Rehabilitate Modified Rivers.
Fechas del Evento: 30 Jun - 2 Jul 2015
Lugar del Evento: Wageningen, Países Bajos
Título del Libro: Novel Approaches to Assess and Rehabilitate Modified Rivers
Fecha: 2015
Materias:
Escuela: E.T.S.I. Montes (UPM) [antigua denominación]
Departamento: Sistemas y Recursos Naturales
Licencias Creative Commons: Reconocimiento - Sin obra derivada - No comercial

Texto completo

[img]
Vista Previa
PDF (Document Portable Format) - Se necesita un visor de ficheros PDF, como GSview, Xpdf o Adobe Acrobat Reader
Descargar (512kB) | Vista Previa

Resumen

Climate change is rearranging the limits of geographic distributions of species. The populations inhabiting the latitudinal margins of a species' range are likely to be sensitive to climatic drivers. If these populations are extirpated, a latitudinal shift of the range is produced. When species are spatially structured into metapopulations, these will experiment a negative growth trajectory, and eventually become extirpated, when extinction rate (e) of local populations (demes) exceeds the rate of establishment of new colonies in available empty patches (mp). Dispersal among patches is a process of central significance for the recolonization rate (mp). Therefore, the loss of longitudinal connectivity in river networks is likely to enhance the latitudinal displacement of a species' range in its rear edge, by reducing that rate. Moreover, if climate drifts towards more meridional conditions, the thermal habitat of some species can become constrained, and the extinction rates of local populations increased. This might be the case of salmonid species in southern Europe. In this work the functioning of a salmonid metapopulation has been modeled by means of several coupled logistic population dynamics models with population viability thresholds. It has been parameterized for a very simple real metapopulation of introduced Salvelinus fontinalis in a glacier lakes system in the mountains of Central Spain. The resilience of the metapopulation has been expressed as a function of the connectivity among demes. Thus, the metapopulation resilience is proposed as a new criterion to assess the efficiency of the restoration of the longitudinal connectivity within a river network.

Proyectos asociados

TipoCódigoAcrónimoResponsableTítulo
FP7282656REFORMSin especificarSin especificar

Más información

ID de Registro: 42249
Identificador DC: http://oa.upm.es/42249/
Identificador OAI: oai:oa.upm.es:42249
URL Oficial: http://www.reformrivers.eu/home
Depositado por: Memoria Investigacion
Depositado el: 08 Jul 2016 14:31
Ultima Modificación: 08 Jul 2016 14:31
  • Open Access
  • Open Access
  • Sherpa-Romeo
    Compruebe si la revista anglosajona en la que ha publicado un artículo permite también su publicación en abierto.
  • Dulcinea
    Compruebe si la revista española en la que ha publicado un artículo permite también su publicación en abierto.
  • Recolecta
  • e-ciencia
  • Observatorio I+D+i UPM
  • OpenCourseWare UPM