Taxonomic surrogates for long-term macrobenthic community monitoring: an application with community trajectory analysis - Université de Bretagne Occidentale Accéder directement au contenu
Article Dans Une Revue Marine Ecology Progress Series Année : 2023

Taxonomic surrogates for long-term macrobenthic community monitoring: an application with community trajectory analysis

Résumé

Biodiversity monitoring, essential to detect impacts of natural and anthropogenic changes on marine ecosystems, is costly, time-consuming and requires high taxonomic expertise. Taxonomic surrogacy might be a solution to overcome these problems and accurately reflect species-level community patterns, but its efficiency has mainly been assessed as taxonomic sufficiency and rarely from long-term monitoring data. Here, the efficiency of subset taxa (i.e. Polychaeta, Crustacea and Mollusca) for summarizing long-term community dynamics was tested in different coastal habitats. The data set came from a yearly long-term macrobenthic monitoring programme (2007-2019) in western France, in 2 biogenic and 2 bare habitats. Community trajectory analysis (CTA), a statistical approach allowing for quantitative measures and comparisons of temporal trajectories, was used to test for similitudes between overall community, subset-taxa and non-subset-taxa dynamics. Polychaeta best reflected the spatial diversity of the different sites as well as the temporal dynamics of the non-Polychaeta species, with more efficiency in biogenic compared to bare habitats. Our study confirmed that the subset-taxon method may reflect long-term benthic habitat dynamics and that CTA is an effective tool to test their efficiency.
Fichier principal
Vignette du fichier
m714p105.pdf (452.99 Ko) Télécharger le fichier
Origine Fichiers éditeurs autorisés sur une archive ouverte

Dates et versions

hal-04182177 , version 1 (03-11-2023)

Licence

Identifiants

Citer

C Toumi, Olivier Gauthier, É Thiébaut, C Guedes, J Grall. Taxonomic surrogates for long-term macrobenthic community monitoring: an application with community trajectory analysis. Marine Ecology Progress Series, 2023, 714, pp.105-111. ⟨10.3354/meps14343⟩. ⟨hal-04182177⟩
100 Consultations
18 Téléchargements

Altmetric

Partager

Gmail Mastodon Facebook X LinkedIn More