Precipitation and temperature drive continental-scale patterns in stream invertebrate production


Contact
Thomas.Brey [ at ] awi.de

Abstract

Secondary production, the growth of new heterotrophic biomass, is a key process in aquatic and terrestrial ecosystems that has been carefully measured in many flowing water ecosystems. We combine structural equation modeling with the first worldwide dataset on annual secondary production of stream invertebrate communities to reveal core pathways linking air temperature and precipitation to secondary production. In the United States, where the most extensive set of secondary production estimates and covariate data were available, we show that precipitation-mediated, low–stream flow events have a strong negative effect on secondary production. At larger scales (United States, Europe, Central America, and Pacific), we demonstrate the significance of a positive two-step pathway from air to water temperature to increasing secondary production. Our results provide insights into the potential effects of climate change on secondary production and demonstrate a modeling framework that can be applied across ecosystems.



Item Type
Article
Authors
Divisions
Primary Division
Programs
Primary Topic
Peer revision
ISI/Scopus peer-reviewed
Publication Status
Published
Eprint ID
49497
DOI 10.1126/sciadv.aav2348

Cite as
Patrick, C. , McGarvey, D. , Cross, W. , Allen, D. , Benke, A. , Brey, T. , Huryn, A. , Jones, J. , Murphy, C. , Ruffing, C. , Saffarinia, P. , Whiles, M. , Wallace, B. and Woodward, G. (2019): Precipitation and temperature drive continental-scale patterns in stream invertebrate production , Science Advances, 5 (4), eaav2348 . doi: 10.1126/sciadv.aav2348


Download
[img]
Preview
PDF
Patrick19_ScienceAdv5.pdf

Download (446kB) | Preview

Share


Citation

Research Platforms
N/A

Campaigns


Actions
Edit Item Edit Item