Changes in phenology and abundance of suction‐trapped Diptera from a farmland site in the UK over four decades

A - Papers appearing in refereed journals

Grabener, S., Oldeland, J., Shortall, C. R. and Harrington, R. 2020. Changes in phenology and abundance of suction‐trapped Diptera from a farmland site in the UK over four decades. Ecological Entomology.

AuthorsGrabener, S., Oldeland, J., Shortall, C. R. and Harrington, R.
Abstract

1. Recently documented insect declines have caused major concerns and an increased interest in studies using long-term population-monitoring data.
2. Samples from a 12.2-m suction trap were used to examine trends in phenology and abundance of Diptera over four decades.
3. The timing of peak flight has advanced by an average of 17 days, from 23 July in 1974 to 6 July in 2014.
4. The abundance of flies has decreased by 37% over the studied period (from April to September), and peak abundance has decreased by 48%. The flight period has started earlier in recent years, and in 2014, the number of flies was higher in spring until the 31st of May than in 1974. Possible causes and impacts of these changes are discussed.

KeywordsClimate change; Insect decline; Long-term population trends; Rothamsted suction traps; UK
Year of Publication2020
JournalEcological Entomology
Digital Object Identifier (DOI)doi:doi:10.1111/een.12873
Open accessPublished as green open access
FunderBiotechnology and Biological Sciences Research Council
Funder project or codeThe Rothamsted Insect Survey - National Capability [2017-2022]
Publisher's version
Output statusPublished
Publication dates
Online15 Apr 2020
PublisherWiley
ISSN0307-6946

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