Caspar A. Hallmann

Radboud University Nijmegen — Netherlands

Environmental Science · Physical Sciences

16h-index6.9kcitations47works1.32yr avg
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Research Topics

Ecology and Vegetation Dynamics Studies(12), Plant and animal studies(12), Species Distribution and Climate Change(9), Insect and Arachnid Ecology and Behavior(6), Animal and Plant Science Education(6)

Publications47 total

Scientists' warning on climate change and insects
UNC Libraries·2025Open Access
Assessment of the adverse effects of pollution on farmland bird diversity in contemporary agricultural landscapes
2025Open Access
Weather anomalies cannot explain insect decline
Nature·2025· 5 citedOpen Access
Assessment of the Adverse Effects of Pollution on Farmland Bird Diversity in Contemporary Agricultural Landscapes
SSRN Electronic Journal·2024Open Access
Spatial, temporal and taxonomic patterns of insect extinction in Germany
2022· 1 citedOpen Access
Scientists' warning on climate change and insects
Ecological Monographs·2022· 507 citedOpen Access
Development of an insect sample fractionizer for biodiversity research
2022· 9 citedOpen Access
A universal insect trait tool (ITT, v1.0) for statistical analysis and evaluation of biodiversity research data
2022· 16 citedOpen Access
Reply to Redlich et al.: Insect biomass and diversity do correlate, over time
Proceedings of the National Academy of Sciences·2021· 5 citedOpen Access
Efficient use of demographic data: integrated population models
2021· 1 citedOpen Access
Insect biomass decline scaled to species diversity: General patterns derived from a hoverfly community
Proceedings of the National Academy of Sciences·2021· 171 citedOpen Access
Data and code from: Insect biomass decline scaled to species diversity: General patterns derived from a hoverfly community
2020Open Access
Data and code from: Insect biomass decline scaled to species diversity: General patterns derived from a hoverfly community
Zenodo (CERN European Organization for Nuclear Research)·2020Open Access
Predation and survival in reintroduced populations of the Common hamster Cricetus cricetus in the Netherlands
Mammalian Biology·2020· 16 citedOpen Access
Data from: Declining abundance of beetles, moths and caddisflies in the Netherlands
Data Archiving and Networked Services (DANS)·2020Open Access
Scientists' warning to humanity on insect extinctions
Biological Conservation·2020· 803 citedOpen Access
Solutions for humanity on how to conserve insects
Biological Conservation·2020· 324 citedOpen Access
International scientists formulate a roadmap for insect conservation and recovery
Nature Ecology & Evolution·2020· 286 citedOpen Access
\nData from: Declining abundance of beetles, moths and caddisflies in the Netherlands
Radboud Repository (Radboud University)·2020
Declining abundance of beetles, moths and caddisflies in the Netherlands
Insect Conservation and Diversity·2019· 184 citedOpen Access
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Frequent Co-authors

Eelke Jongejans(19), Hans de Kroon(10), Martin Sorg(9), Axel Ssymank(7), Thomas Hörren(5), Pedro Cardoso(5), Axel Hochkirch(5), Michael J. Samways(5), Ruud Foppen(4), Charl Deacon(4), Caroline Sayuri Fukushima(4), Nigel E. Stork(4), Theo Zeegers(4), Roel van Klink(4), P. van Wielink(4), H. Spijkers(4), Michael Hoppert(4), R. E. Summons(4), H. Siepel(3), Heinz Schwan(3)