Menacés par des lois: les conséquences potentielles des législations d’échardonnage sur la conservation des bourdons

Sarah Vray, Thomas Lecocq, Stuart P.M. Roberts, Pierre Rasmont

Résultats de recherche: Contribution à un journal/une revueArticleRevue par des pairs

Résumé

Summary: Many bumblebee (Bombus) species are undergoing a strong decline in Europe due to, amongst other things, a decrease of food resources. While leguminous plants (Fabaceae) are considered to be one of the main pollen sources of bumblebees, thistles (Asteraceae tribe Cardueae) have been suggested to be important for male diet. Yet, several European countries apply strict regulations against thistles since they are considered to be one of the principal weeds in agricultural landscapes. Such regulations could impact bumblebee conservation through disruption of male diet and ecology. Here, we assess the male-depending importance of thistles for bumblebee species based on field observations across countries where a legal regulation against thistles is in effect. We ultimately aim to evaluate the potential consequences of these regulations on bumblebee conservation. Our results confirm that most floral visit observations of males occur on thistles (mainly Cirsium spp. and Carduus spp.) and some species are almost exclusively observed on them. Thistle removal is thus most likely a threat for bumblebees. Therefore, we advocate repealing the thistle removal acts to make way for alternative thistle regulations which reconcile biodiversity conservation and agricultural requirements.

Titre traduit de la contributionEndangered by laws: potential consequences of regulations against thistles on bumblebee conservation
langue originaleFrançais
Pages (de - à)33-41
Nombre de pages9
journalAnnales de la Societe Entomologique de France
Volume53
Numéro de publication1
Les DOIs
Etat de la publicationPublié - 19 avr. 2017

mots-clés

  • Bombus
  • Cardueae
  • Carduus
  • Cirsium
  • floral resources
  • pollinator conservation
  • weed control legislation

Empreinte digitale

Examiner les sujets de recherche de « Menacés par des lois: les conséquences potentielles des législations d’échardonnage sur la conservation des bourdons ». Ensemble, ils forment une empreinte digitale unique.

Contient cette citation