Save

What drives non-native amphipod distributions in the River Thames? The role of habitat and human activity on species abundance

In: Crustaceana
View More View Less
  • 1 Department of Geography and the Environment, University of Oxford, South Parks Road, Oxford OX1 3QY, U.K.
  • | 2 Department for Continuing Education, University of Oxford, 1 Wellington Square, Oxford OX1 2JA, U.K.
  • | 3 Environment Agency, Red Kite House, Howbery Park, Wallingford OX10 8BD, U.K.
Download Citation Get Permissions

Access options

Get access to the full article by using one of the access options below.

Institutional Login

Log in with Open Athens, Shibboleth, or your institutional credentials

Login via Institution

Purchase

Buy instant access (PDF download and unlimited online access):

€29.95$34.95

Increasing colonization of non-native amphipod species in the River Thames, United Kingdom, has altered aquatic ecology and called existing management practices into question. We studied the distribution patterns of recent non-native (Dikerogammarus haemobaphes (Eichwald, 1841)), established non-native (Crangonyx pseudogracilis (Bousfield, 1958)), and native amphipod (Gammarus pulex (Linnaeus, 1758)) species, as well as habitat and human influences across 84 sites in the upper Thames catchment. Our findings showed widespread distribution and density of G. pulex relative to D. haemobaphes, suggesting that the full impact of the current spread has yet to be felt since its 2012 introduction. Different habitat utilization patterns are explained through habitat partitioning: both D. haemobaphes and C. pseudogracilis occupied vegetative habitats, not pebble/gravel habitats where the native G. pulex was most often found. The association between D. haemobaphes and boating presence implies that effective biosecurity would be best focused on boat traffic in the Thames and Cherwell rivers.

Content Metrics

All Time Past Year Past 30 Days
Abstract Views 360 103 9
Full Text Views 397 51 10
PDF Views & Downloads 33 6 1