The most remarkable migrants - systematic analysis of the Western European insect flyway at a Pyrenean mountain pass

A - Papers appearing in refereed journals

Hawkes, W. L., Doyle, T., Massy, R., Weston, S. T., Davies, K., Cornelius, E., Collier, C., Chapman, J. W., Reynolds, D. R. and Wotton, K. R. 2024. The most remarkable migrants - systematic analysis of the Western European insect flyway at a Pyrenean mountain pass. Proceedings of the Royal Society B: Biological Sciences. 291, p. 20232831. https://doi.org/10.1098/rspb.2023.2831

AuthorsHawkes, W. L., Doyle, T., Massy, R., Weston, S. T., Davies, K., Cornelius, E., Collier, C., Chapman, J. W., Reynolds, D. R. and Wotton, K. R.
Abstract

In autumn 1950 David and Elizabeth Lack chanced upon a huge migration of insects and birds flying through the Pyrenean Pass of Bujaruelo, from France into Spain, later describing the spectacle as combining both grandeur and novelty. The intervening years have seen many changes to land use and
climate, posing the question as to the current status of this migratory phenomenon. In addition, a lack of quantitative data has prevented insights into the ecological impact of this mass insect migration and the factors that may influence it. To address this, we revisited the site in autumn over a
4 year period and systematically monitored abundance and species composition of diurnal insect migrants. We estimate an annual mean of 17.1 million day-flying insect migrants from five orders (Diptera, Hymenoptera, Hemiptera, Lepidoptera and Odonata) moving south, with observations of
southward ‘mass migration’ events associated with warmer temperatures, the presence of a headwind, sunlight, low windspeed and low rainfall. Diptera dominated the migratory assemblage, and annual numbers varied by more than fourfold. Numbers at this single site hint at the likely billions
of insects crossing the entire Pyrenean mountain range each year, and we highlight the importance of this route for seasonal insect migrants.

KeywordsPyrenees; Insect migration flyway; Monitoring; Migration rates; Movement ecology
Year of Publication2024
JournalProceedings of the Royal Society B: Biological Sciences
Journal citation291, p. 20232831
Digital Object Identifier (DOI)https://doi.org/10.1098/rspb.2023.2831
Open accessPublished as ‘gold’ (paid) open access
FunderBiotechnology and Biological Sciences Research Council
Publisher's version
Output statusPublished
Publication dates
OnlineJun 2024
Publication process dates
Accepted16 May 2024
PublisherRoyal Society Publishing
ISSN0962-8452

Permalink - https://repository.rothamsted.ac.uk/item/990v2/the-most-remarkable-migrants-systematic-analysis-of-the-western-european-insect-flyway-at-a-pyrenean-mountain-pass

12 total views
4 total downloads
4 views this month
0 downloads this month
Download files as zip