Article

 

Climate regulates alpine lake ice cover phenology and aquatic ecosystem structure Public Deposited

Analytics
https://ir.library.oregonstate.edu/concern/articles/5m60qt53n

Data are available through the Niwot Ridge Long Term Ecological Research Website ( http://niwot.colorado.edu/).

To the best of our knowledge, one or more authors of this paper were federal employees when contributing to this work. This is the publisher’s final pdf. The article is copyrighted by the American Geophysical Union and published by John Wiley & Sons, Inc. It can be found at:  http://agupubs.onlinelibrary.wiley.com/agu/journal/10.1002/%28ISSN%291944-8007/

Descriptions

Attribute NameValues
Creator
Abstract
  • High-elevation aquatic ecosystems are highly vulnerable to climate change, yet relatively few records are available to characterize shifts in ecosystem structure or their underlying mechanisms. Using a long-term data set on seven alpine lakes (3126 to 3620 m) in Colorado, USA, we show that ice-off dates have shifted 7 days earlier over the past 33 years and that spring weather conditions—especially snowfall—drive yearly variation in ice-off timing. In the most well studied lake, earlier ice-off associated with increases in water residence times, thermal stratification, ion concentrations, dissolved nitrogen, pH, and chlorophyll a. Mechanistically, low spring snowfall and warm temperatures reduce summer stream flow (increasing lake residence times) but enhance melting of glacial and permafrost ice (increasing lake solute inputs). The observed links among hydrological, chemical, and biological responses to climate factors highlight the potential for major shifts in the functioning of alpine lakes due to forecasted climate change.
Resource Type
DOI
Date Available
Date Issued
Citation
  • Preston, D. L., Caine, N., McKnight, D. M., Williams, M. W., Hell, K., Miller, M. P., ... & Johnson, P. T. (2016). Climate regulates alpine lake ice cover phenology and aquatic ecosystem structure. Geophysical Research Letters, 43(10), 5553-5560. doi:10.1002/2016GL069036
Journal Title
Journal Volume
  • 43
Journal Issue/Number
  • 10
Rights Statement
Funding Statement (additional comments about funding)
  • Funding for this study came from the University of Colorado, the NSF Niwot Ridge LTER (DEB-1027341), and NSF grants to D. Preston (DEB-1311467), P. Johnson (DEB-0841758 and DEB-1149308), and M. Williams (NSF EAR-1124576).
Publisher
Peer Reviewed
Language
Replaces
Additional Information
  • description.provenance : Made available in DSpace on 2016-07-20T19:33:43Z (GMT). No. of bitstreams: 3 krauserp932878975.zip: 2451957 bytes, checksum: 974047a1ad1c8ece01b5efcea116ed40 (MD5) PrestonClimateRegulatesAlpine.pdf: 1258063 bytes, checksum: bbda4cc7e6574a38ff7930f37b73869d (MD5) PrestonClimateRegulatesAlpineSupportingInfo.pdf: 1445251 bytes, checksum: e8df6bb9d380077cdb1f0a1a74713579 (MD5) Previous issue date: 2016-05-28
  • description.provenance : Submitted by Open Access (openaccess@library.oregonstate.edu) on 2016-07-20T15:51:40Z No. of bitstreams: 2 PrestonClimateRegulatesAlpine.pdf: 1258063 bytes, checksum: bbda4cc7e6574a38ff7930f37b73869d (MD5) PrestonClimateRegulatesAlpineSupportingInfo.pdf: 1445251 bytes, checksum: e8df6bb9d380077cdb1f0a1a74713579 (MD5)
  • description.provenance : Approved for entry into archive by Patricia Black(patricia.black@oregonstate.edu) on 2016-07-20T19:33:43Z (GMT) No. of bitstreams: 3 krauserp932878975.zip: 2451957 bytes, checksum: 974047a1ad1c8ece01b5efcea116ed40 (MD5) PrestonClimateRegulatesAlpine.pdf: 1258063 bytes, checksum: bbda4cc7e6574a38ff7930f37b73869d (MD5) PrestonClimateRegulatesAlpineSupportingInfo.pdf: 1445251 bytes, checksum: e8df6bb9d380077cdb1f0a1a74713579 (MD5)

Relationships

Parents:

This work has no parents.

Items

Thumbnail Title Date Uploaded Visibility Actions
PrestonClimateRegulatesAlpine.pdf 07/25/2017 Public
PrestonClimateRegulatesAlpineSupportingInfo.pdf 07/25/2017 Public