Stream habitat fragmentation — a threat to biodiversity

  title={Stream habitat fragmentation — a threat to biodiversity},
  author={Peter R. Zwick},
  journal={Biodiversity \& Conservation},
  • P. Zwick
  • Published 2004
  • Biology
  • Biodiversity & Conservation
Biodiversity is undisturbed rhithral streams in central Europe is high, with about 1000 resident metazoan species; over 600 insect species occur in the Fulda river (Germany). Longitudinal downstream shift of dominance from rheobiontic to rheophilous and finally to ubiquituos rheoxenic taxa in the potamal is described. Present downstream importance of ubiquituous species probably results from replacement of original potamal communities, present faunas being surrogates. Species losses through… Expand

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