Microcrustacean communities in streams from two physiographically contrasting regions of Britain


Abstract:

Benthic microcrustaceans were sampled from forty-three streams in two physiographically contrasting regions of Britain: lowland southern England and upland Wales. Lowland streams had a significantly higher species richness than upland streams and, of the forty-three copepod and cladoceran species identified, only fourteen (33%) were found in both the lowlands and uplands. Canonical correspondence analysis revealed large differences in community structure between regions and between streams within regions. Differences within regions were related to pH, the distance downstream of a site and the presence of upstream impoundments. Variables underlying the large biological differences between regions are also discussed, including differences in chemistry (ionic content), physical parameters (e.g. flow), habitat availability and the influence of species biogeography. The importance of understanding species ecology and biogeography when assessing pollution impacts on stream communities is emphasized and a model is proposed for predicting the composition of microcrustacean communities in temperate European streams.

Año de publicación:

1997

Keywords:

  • Cladocerans
  • Microcrustacean communities
  • Copepods
  • Biogeography

Fuente:

scopusscopus

Tipo de documento:

Article

Estado:

Acceso restringido

Áreas de conocimiento:

  • Ecología
  • Zoología
  • Biodiversidad

Áreas temáticas de Dewey:

  • Temas específicos de historia natural de los animales
  • Ecología
  • Ciencias de la tierra
Procesado con IAProcesado con IA

Objetivos de Desarrollo Sostenible:

  • ODS 15: Vida de ecosistemas terrestres
  • ODS 14: Vida submarina
  • ODS 6: Agua limpia y saneamiento
Procesado con IAProcesado con IA