Impact of cutting date on carabids and spiders in a wet meadow

Autor: Denis Lafage, Julien Pétillon
Přispěvatelé: Biodiversité et gestion des territoires EA 7316, Groupe ECologie et COnservation des vertébrés (GECCO), Université d'Angers (UA), We would like to thank Jean Secondi (Université d'Angers, UNAM, GECCO) for managing the project, Arnaud Horellou for his help in identifying problematic carabids, Jean Paillat for field and laboratory assistance, and Aldyth Nys for editing the English. This study was funded by 'Plan Loire Grandeur Nature' (FEDER), 'Région Pays de la Loire' and 'Agence de l'Eau Loire-Bretagne'.
Jazyk: angličtina
Rok vydání: 2014
Předmět:
Zdroj: Agriculture, Ecosystems & Environment
Agriculture, Ecosystems & Environment, 2014, 185, pp.1-8. ⟨10.1016/j.agee.2013.11.027⟩
Agriculture, Ecosystems and Environment
Agriculture, Ecosystems and Environment, Elsevier Masson, 2014, 185, pp.1-8. ⟨10.1016/j.agee.2013.11.027⟩
ISSN: 0167-8809
DOI: 10.1016/j.agee.2013.11.027⟩
Popis: International audience; The impact of different cutting dates on two dominant groups of ground-dwelling arthropods (carabids and spiders) was assessed. Short-term impacts were assessed by comparing them before and after cutting. Arthropods were collected by pitfall traps located in three plots with different cutting dates between June and August and one uncut control plot. Trapping was performed during a 4-month period in the spring and summer 2011. In total, 26,392 spiders and 12,278 carabids, representing 56 and 82 species respectively, were collected. Overall, the effects of cutting were negative and mostly visible in the long term for carabids, with reduced abundances and species richness in cut plots, and in the short-term for spiders; several parameters (proportion of predators and polyphagous species, and body length) decreased after cutting while remaining stable in the control. Long-term cutting effects revealed almost no differences between plots cut at different dates whereas the short-term effects decreased slightly over time, with respect to the overall phenology of both groups. In conclusion, this study underlines the fact that cutting has drastic effects on ground-dwelling arthropods, and even late dates, which are supposedly positive for other animals like breeding birds, are deleterious for highly diverse and species-rich grassland groups.
Databáze: OpenAIRE