Sublethal effects of the parasiticide ivermectin on male and female reproductive and behavioural traits in the yellow dung fly

Autor: Wolf U. Blanckenhorn, Alexandra Wegmann, Patrick T. Rohner, Jeannine Roy, Natalia Gourgoulianni, Nicola van Koppenhagen
Přispěvatelé: University of Zurich, Blanckenhorn, Wolf U
Rok vydání: 2020
Předmět:
Male
Insecta
animal diseases
Health
Toxicology and Mutagenesis
0208 environmental biotechnology
02 engineering and technology
010501 environmental sciences
01 natural sciences
Feces
Ivermectin
2305 Environmental Engineering
Body Size
Mating
media_common
Larva
Antiparasitic Agents
Ecology
Reproduction
Veterinary Drugs
General Medicine
Pollution
Phenotype
2304 Environmental Chemistry
2310 Pollution
590 Animals (Zoology)
Female
Livestock
Scathophaga stercoraria
medicine.drug
Environmental Engineering
Offspring
media_common.quotation_subject
Zoology
1600 General Chemistry
Biology
10127 Institute of Evolutionary Biology and Environmental Studies
2307 Health
Toxicology and Mutagenesis
parasitic diseases
medicine
Animals
Environmental Chemistry
Juvenile
0105 earth and related environmental sciences
business.industry
fungi
Public Health
Environmental and Occupational Health
General Chemistry
biology.organism_classification
020801 environmental engineering
570 Life sciences
biology
Cattle
business
Zdroj: Chemosphere. 242:125240
ISSN: 0045-6535
DOI: 10.1016/j.chemosphere.2019.125240
Popis: The veterinary pharmaceutical ivermectin is commonly used against parasites of livestock. Excreted in dung it can have lethal and sublethal effects on non-target organisms developing in and living around cattle dung. Research in this realm typically investigates the impact of pharmaceuticals on dung-feeding insects by looking at juvenile development and survival, while fitness effects of adult exposure are largely neglected. We conducted laboratory experiments to assess combined effects of ivermectin on life history and reproductive traits of juvenile and adult yellow dung flies (Scathophaga stercoraria). Two treatments (12 and 24 μg ivermectin/kg wet dung) were used for the larvae reared in dung, and one much higher concentration (3000 μg ivermectin/kg sugar) for the adult flies (in addition to uncontaminated controls). Juvenile ivermectin exposure lead to smaller body size of male and female flies. Adult feeding on ivermectin-contaminated dung additionally resulted in adult male flies with smaller testes (and likely fewer sperm) that experienced reduced mating durations, resulting in lower probability of producing offspring. Exposure of adult flies to ivermectin lowered offspring production and survival for both sexes. Thus, treatment of livestock with pharmaceuticals such as ivermectin appears to have even more far-reaching sublethal ecological consequences than previously assumed by affecting not only flies at their larval stage but also adult mating behaviour and reproduction.
Databáze: OpenAIRE
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