Glyphosate commercial formulation negatively affects the reproductive success of solitary wild bees in a Pampean agroecosystem - Apidologie Accéder directement au contenu
Article Dans Une Revue Apidologie Année : 2021

Glyphosate commercial formulation negatively affects the reproductive success of solitary wild bees in a Pampean agroecosystem

Résumé

Glyphosate is the most widely used herbicide worldwide and it could have negative effects on wild bees. We study the effect of glyphosate commercial formulation on the nesting behavior of wild solitary bees (Megachile spp.) and the survival of immature stages in a Pampean agroecosystem. In four plots without agricultural management located in an agricultural field, we placed 480 wooden trap-nests. The traps were sprayed with two different concentrations of glyphosate commercial formulation and only with water. The number of cells per nest was significantly lower in glyphosate treated traps compared with the water treatment. The probability of finding breeding cells was two times higher in nests without glyphosate commercial formulation compared with treated nests. Larvae completed their development and emerged as adults approximately four times more in nests without glyphosate commercial formulation, relative to those with glyphosate. Our results indicate that glyphosate commercial formulation could be conditioning the behavior of the nesting females and it is affecting their reproduction.
Fichier principal
Vignette du fichier
13592_2020_Article_816.pdf (519.47 Ko) Télécharger le fichier
Origine : Publication financée par une institution

Dates et versions

hal-03400319 , version 1 (25-10-2021)

Identifiants

Citer

Sofia Graffigna, Hugo J. Marrero, Juan P. Torretta. Glyphosate commercial formulation negatively affects the reproductive success of solitary wild bees in a Pampean agroecosystem. Apidologie, 2021, 52 (1), pp.272-281. ⟨10.1007/s13592-020-00816-8⟩. ⟨hal-03400319⟩
21 Consultations
37 Téléchargements

Altmetric

Partager

Gmail Facebook X LinkedIn More