Urbanization impacts the taxonomic and functional structure of aquatic macroinvertebrate communities in a small Neotropical city - Université de Montpellier Accéder directement au contenu
Article Dans Une Revue Urban Ecosystems Année : 2017

Urbanization impacts the taxonomic and functional structure of aquatic macroinvertebrate communities in a small Neotropical city

Résumé

Due to habitat fragmentation, resource disruption and pollution, urbanization is one of the most destructive forms of anthropization affecting ecosystems worldwide. Generally, human-mediated perturbations dramatically alter species diversity in urban sites compared to the surroundings, thus influencing the functioning of the entire ecosystem. We investigated the taxonomic and functional diversity patterns of the aquatic macroinvertebrate communities in tank bromeliads by comparing those found in a small Neotropical city with those from an adjacent rural site. Changes in the quality of detrital inputs in relation to lower tree diversity and the presence of synanthropic species are likely important driving forces behind the observed structural changes in the urban site. Leaf-litter processors (i.e., shredders, scrapers) were positively affected in the urban site, while filter-feeders that process smaller particles produced by the activity of the shredders were negatively affected. Because we cannot ascertain whether the decline in filter-feeders is related to food web-mediated effects or to competitive exclusion (Aedes aegypti mosquitoes were present in urban bromeliads only), further studies are necessary to account for the effects of intra-guild competition or inter-guild facilitation.
Fichier principal
Vignette du fichier
Talaga et al. 2017_1.pdf (645.99 Ko) Télécharger le fichier
Origine : Fichiers produits par l'(les) auteur(s)
Loading...

Dates et versions

hal-02163968 , version 1 (26-05-2020)

Identifiants

Citer

Stanislas Talaga, Olivier Dézerald, Alexis Carteron, Céline Leroy, Jean-François Carrias, et al.. Urbanization impacts the taxonomic and functional structure of aquatic macroinvertebrate communities in a small Neotropical city. Urban Ecosystems, 2017, 20 (5), pp.1001-1009. ⟨10.1007/s11252-017-0653-6⟩. ⟨hal-02163968⟩
445 Consultations
210 Téléchargements

Altmetric

Partager

Gmail Facebook X LinkedIn More