HAL will be down for maintenance from Friday, June 10 at 4pm through Monday, June 13 at 9am. More information
Skip to Main content Skip to Navigation
Journal articles

Linking phylogenetic similarity and pollution sensitivity to develop ecological assessment methods: a test with river diatoms

Abstract : 1. Diatoms include a great diversity of taxa and are recognized as powerful bioindicators of freshwater quality. However using diatoms for bioassess-ment is costly and time consuming, because most of the indices necessitate species-level identification. Simplifying diatoms-based assessment protocols has focused the attention of water-managers and researchers in recent years. 2. The increasing availability of genomic data and phylogenies can benefit in the development of bioassessment methods making use of these tools, where a clade plays the role of a species if relevant. Indeed, the null hypothesis is that closely related species are more likely to exhibit similar environmental sensitivity because of phylogenetic constraints and inheritance. Such patterns have been reported recently for sensitivity to a variety of pollutants for two important groups of bioindicators used for freshwater monitoring: benthic macroinvertebrates and diatoms. 3. We introduce a method to extract clusters of species sharing similar traits and being phylogenetically related. We apply this method on the general pollution sensitivity (IPS specific sensitivity value; Coste, 1982) of 262 species of diatoms and, by tuning the method settings; we generate different clade-based derivatives of the traditional IPS index. 4. Finally, we estimate traditional and derived IPS scores for 2119 natural communities of diatoms in eastern France to compare and assess the performances of these new indices. 5. Synthesis and applications. We show that phylogenetic approaches offer a scope for simplification without an important loss of information and we discuss the potential of their use in biomonitoring.
Document type :
Journal articles
Complete list of metadata

Contributor : David James Sherman Connect in order to contact the contributor
Submitted on : Tuesday, December 19, 2017 - 1:37:20 PM
Last modification on : Wednesday, March 2, 2022 - 12:12:04 PM


Files produced by the author(s)



François Keck, Agnes Bouchez, Alain Franc, Frédéric Rimet. Linking phylogenetic similarity and pollution sensitivity to develop ecological assessment methods: a test with river diatoms. Journal of Applied Ecology, Wiley, 2016, 53 (3), pp.856-864. ⟨10.1111/1365-2664.12624⟩. ⟨hal-01426853⟩



Record views


Files downloads