Publication Details

Reference Category Journals
DOI / URL link
Document author version
Title (Primary) Meta-analysis reveals declines in terrestrial but increases in freshwater insect abundances
Author van Klink, R.; Bowler, D.E.; Gongalsky, K.B.; Swengel, A.B.; Gentile, A.; Chase, J.M.;
Journal Science
Year 2020
Department iDiv; ESS;
Volume 368
Issue 6489
Language englisch;
POF III (all) T12;
Supplements http://science.sciencemag.org/content/suppl/2020/04/22/368.6489.417.DC1
Abstract Recent case studies showing substantial declines of insect abundances have raised alarm, but how widespread such patterns are remains unclear. We compiled data from 166 long-term surveys of insect assemblages across 1676 sites to investigate trends in insect abundances over time. Overall, we found considerable variation in trends even among adjacent sites but an average decline of terrestrial insect abundance by ~9% per decade and an increase of freshwater insect abundance by ~11% per decade. Both patterns were largely driven by strong trends in North America and some European regions. We found some associations with potential drivers (e.g., land-use drivers), and trends in protected areas tended to be weaker. Our findings provide a more nuanced view of spatiotemporal patterns of insect abundance trends than previously suggested.
ID 23039
Persistent UFZ Identifier https://www.ufz.de/index.php?en=20939&ufzPublicationIdentifier=23039
van Klink, R., Bowler, D.E., Gongalsky, K.B., Swengel, A.B., Gentile, A., Chase, J.M. (2020):
Meta-analysis reveals declines in terrestrial but increases in freshwater insect abundances
Science 368 (6489), 417 - 420