Thermal regimes of Rocky Mountain lakes warm with climate change.

Anthropogenic climate change is causing a wide range of stresses in aquatic ecosystems, primarily through warming thermal conditions. Lakes, in response to these changes, are experiencing increases in both summer temperatures and ice-free days. We used continuous records of lake surface temperature...

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Main Authors: James J Roberts, Kurt D Fausch, Travis S Schmidt, David M Walters
Format: Article
Language:English
Published: Public Library of Science (PLoS) 2017-01-01
Series:PLoS ONE
Online Access:http://europepmc.org/articles/PMC5500263?pdf=render
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author James J Roberts
Kurt D Fausch
Travis S Schmidt
David M Walters
author_facet James J Roberts
Kurt D Fausch
Travis S Schmidt
David M Walters
author_sort James J Roberts
collection DOAJ
description Anthropogenic climate change is causing a wide range of stresses in aquatic ecosystems, primarily through warming thermal conditions. Lakes, in response to these changes, are experiencing increases in both summer temperatures and ice-free days. We used continuous records of lake surface temperature and air temperature to create statistical models of daily mean lake surface temperature to assess thermal changes in mountain lakes. These models were combined with downscaled climate projections to predict future thermal conditions for 27 high-elevation lakes in the southern Rocky Mountains. The models predict a 0.25°C·decade-1 increase in mean annual lake surface temperature through the 2080s, which is greater than warming rates of streams in this region. Most striking is that on average, ice-free days are predicted to increase by 5.9 days ·decade-1, and summer mean lake surface temperature is predicted to increase by 0.47°C·decade-1. Both could profoundly alter the length of the growing season and potentially change the structure and function of mountain lake ecosystems. These results highlight the changes expected of mountain lakes and stress the importance of incorporating climate-related adaptive strategies in the development of resource management plans.
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spelling doaj.art-cbbc38d23aed4e07b4455f469d29449c2022-12-21T18:48:42ZengPublic Library of Science (PLoS)PLoS ONE1932-62032017-01-01127e017949810.1371/journal.pone.0179498Thermal regimes of Rocky Mountain lakes warm with climate change.James J RobertsKurt D FauschTravis S SchmidtDavid M WaltersAnthropogenic climate change is causing a wide range of stresses in aquatic ecosystems, primarily through warming thermal conditions. Lakes, in response to these changes, are experiencing increases in both summer temperatures and ice-free days. We used continuous records of lake surface temperature and air temperature to create statistical models of daily mean lake surface temperature to assess thermal changes in mountain lakes. These models were combined with downscaled climate projections to predict future thermal conditions for 27 high-elevation lakes in the southern Rocky Mountains. The models predict a 0.25°C·decade-1 increase in mean annual lake surface temperature through the 2080s, which is greater than warming rates of streams in this region. Most striking is that on average, ice-free days are predicted to increase by 5.9 days ·decade-1, and summer mean lake surface temperature is predicted to increase by 0.47°C·decade-1. Both could profoundly alter the length of the growing season and potentially change the structure and function of mountain lake ecosystems. These results highlight the changes expected of mountain lakes and stress the importance of incorporating climate-related adaptive strategies in the development of resource management plans.http://europepmc.org/articles/PMC5500263?pdf=render
spellingShingle James J Roberts
Kurt D Fausch
Travis S Schmidt
David M Walters
Thermal regimes of Rocky Mountain lakes warm with climate change.
PLoS ONE
title Thermal regimes of Rocky Mountain lakes warm with climate change.
title_full Thermal regimes of Rocky Mountain lakes warm with climate change.
title_fullStr Thermal regimes of Rocky Mountain lakes warm with climate change.
title_full_unstemmed Thermal regimes of Rocky Mountain lakes warm with climate change.
title_short Thermal regimes of Rocky Mountain lakes warm with climate change.
title_sort thermal regimes of rocky mountain lakes warm with climate change
url http://europepmc.org/articles/PMC5500263?pdf=render
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