|Appears in Collections:||Biological and Environmental Sciences Journal Articles|
|Peer Review Status:||Refereed|
|Title:||Larval exposure to the neonicotinoid imidacloprid impacts adult size in the farmland butterfly Pieris brassicae|
|Author(s):||Whitehorn, Penelope R|
|Citation:||Whitehorn PR, Norville G, Gilburn A & Goulson D (2018) Larval exposure to the neonicotinoid imidacloprid impacts adult size in the farmland butterfly Pieris brassicae, PeerJ, 6, Art. No.: e4772. https://doi.org/10.7717/peerj.4772.|
|Abstract:||Populations of farmland butterflies have been suffering from substantial population declines in recent decades. These declines have been correlated with neonicotinoid usage both in Europe and North America but experimental evidence linking these correlations is lacking. The potential for non-target butterflies to be exposed to trace levels of neonicotinoids is high, due to the widespread contamination of agricultural soils and wild plants in field margins. Here we provide experimental evidence that field realistic, sub-lethal exposure to the neonicotinoid imidacloprid negatively impacts the development of the common farmland butterfly Pieris brassicae. Cabbage plants were watered with either 0, 1, 10, 100 or 200 parts per billion imidacloprid, to represent field margin plants growing in contaminated agricultural soils and these were fed to P. brassicae larvae. The approximate digestibility (AD) of the cabbage as well as behavioural responses by the larvae to simulated predator attacks were measured but neither were affected by neonicotinoid treatment. However, the duration of pupation and the size of the adult butterflies were both significantly reduced in the exposed butterflies compared to the controls, suggesting that adult fitness is compromised through exposure to this neonicotinoid.|
|Rights:||Distributed under Creative Commons CC-BY 4.0 (https://creativecommons.org/licenses/by/4.0/)|
|peerj-4772.pdf||Fulltext - Published Version||306.09 kB||Adobe PDF||View/Open|
This item is protected by original copyright
Items in the Repository are protected by copyright, with all rights reserved, unless otherwise indicated.
If you believe that any material held in STORRE infringes copyright, please contact email@example.com providing details and we will remove the Work from public display in STORRE and investigate your claim.