Article (Scientific journals)
Lethal effects and sex-specific tolerance of copper and cadmium in the buff-tailed bumble bee
Gekiere, Antoine; Breuer, Luna; Dorio, Luca et al.
2024In Environmental Toxicology and Pharmacology, 110, p. 104546
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Keywords :
Bombus terrestris; Gut damage; Lethal dose 50%; OECD No. 247; Trace metal and metalloid
Abstract :
[en] Exposure to environmental pollutants, including trace metals, is a major driver of bee decline worldwide. While pesticides undergo standardised risk assessments (i.e., LD50) and the implementation of online databases, no such approaches exist for trace metals. Here, using acute oral exposure, we determined the LC50, LD50, and mass- standardised LD50 of copper and cadmium, essential and non-essential metals, respectively, in workers and males of the buff-tailed bumble bee. We also evaluated gut damage and sucrose consumption in workers post- exposure. Cadmium was more toxic than copper for workers at same doses, although both metals induced se- vere gut melanisation and reduced sucrose consumption at high concentrations. Males displayed higher tolerance to cadmium, but it was correlated to their higher body mass, emphasising the necessity for reporting mass- standardised LD50 for genuine sex comparisons in risk assessments. Our findings advocate for the establish- ment of databases focusing on metal-induced lethal effects on model bee species.
Disciplines :
Environmental sciences & ecology
Author, co-author :
Gekiere, Antoine  ;  Université de Mons - UMONS > Faculté des Sciences > Service de Zoologie
Breuer, Luna;  UMONS - Université de Mons [BE] > Faculté des Sciences > Service de Zoologie
Dorio, Luca ;  Université de Mons - UMONS > Faculté des Sciences > Service de Zoologie
Vanderplanck, Maryse ;  Université de Mons - UMONS > Faculté des Sciences > Service de Zoologie
Michez, Denis  ;  Université de Mons - UMONS > Faculté des Sciences > Service de Zoologie
Language :
English
Title :
Lethal effects and sex-specific tolerance of copper and cadmium in the buff-tailed bumble bee
Publication date :
27 September 2024
Journal title :
Environmental Toxicology and Pharmacology
ISSN :
1382-6689
Publisher :
Elsevier BV
Volume :
110
Pages :
104546
Peer reviewed :
Peer Reviewed verified by ORBi
Research unit :
S869 - Zoologie
Research institute :
R100 - Institut des Biosciences
Funders :
FRS-FNRS
Available on ORBi UMONS :
since 28 August 2024

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