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Publication Details
AFRICAN RESEARCH NEXUS
SHINING A SPOTLIGHT ON AFRICAN RESEARCH
Global scale variation in the salinity sensitivity of riverine macroinvertebrates: Eastern Australia, France, Israel and South Africa
PLoS ONE, Volume 7, No. 5, Article e35224, Year 2012
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Description
Salinity is a key abiotic property of inland waters; it has a major influence on biotic communities and is affected by many natural and anthropogenic processes. Salinity of inland waters tends to increase with aridity, and biota of inland waters may have evolved greater salt tolerance in more arid regions. Here we compare the sensitivity of stream macroinvertebrate species to salinity from a relatively wet region in France (Lorraine and Brittany) to that in three relatively arid regions eastern Australia (Victoria, Queensland and Tasmania), South Africa (south-east of the Eastern Cape Province) and Israel using the identical experimental method in all locations. The species whose salinity tolerance was tested, were somewhat more salt tolerant in eastern Australia and South Africa than France, with those in Israel being intermediate. However, by far the greatest source of variation in species sensitivity was between taxonomic groups (Order and Class) and not between the regions. We used a Bayesian statistical model to estimate the species sensitivity distributions (SSDs) for salinity in eastern Australia and France adjusting for the assemblages of species in these regions. The assemblage in France was slightly more salinity sensitive than that in eastern Australia. We therefore suggest that regional salinity sensitivity is therefore likely to depend most on the taxonomic composition of respective macroinvertebrate assemblages. On this basis it would be possible to screen rivers globally for risk from salinisation. © 2012 Kefford et al.
Available Materials
https://efashare.b-cdn.net/share/pmc/articles/PMC3342278/bin/pone.0035224.s001.pdf
https://efashare.b-cdn.net/share/pmc/articles/PMC3342278/bin/pone.0035224.s002.pdf
https://efashare.b-cdn.net/share/pmc/articles/PMC3342278/bin/pone.0035224.s003.pdf
Authors & Co-Authors
Kefford, Ben J.
Australia, Sydney
University of Technology Sydney
Hickey, Graeme Lee
United Kingdom, Manchester
The University of Manchester
Gasith, Avital
Israel, Tel Aviv-yafo
Tel Aviv University
Ben-David, Elad
Israel, Tel Aviv-yafo
Tel Aviv University
Dunlop, Jason E.
Australia, Brisbane
Department of Environment and Science
Palmer, Carolyn Gay
South Africa, Grahamstown
Rhodes University
Allan, Kaylene
Australia, Hobart
University of Tasmania
Choy, Satish C.
Australia, Brisbane
Department of Environment and Science
Piscart, Christophe
France, Villeurbanne
Université Claude Bernard Lyon 1
Statistics
Citations: 97
Authors: 9
Affiliations: 7
Identifiers
Doi:
10.1371/journal.pone.0035224
e-ISSN:
19326203
Study Locations
South Africa