TY - JOUR
T1 - Sentinel responses of Arctic freshwater systems to climate
T2 - linkages, evidence, and a roadmap for future research
AU - Saros, Jasmine E.
AU - Arp, Christopher D.
AU - Bouchard, Frédéric
AU - Comte, Jérôme
AU - Couture, Raoul-Marie
AU - Dean, Joshua
AU - Lafrenière, Melissa J.
AU - MacIntyre, Sally
AU - McGowan, Suzanne
AU - Rautio, Milla
AU - Prater, Clay
AU - Tank, Suzanne
AU - Walvoord, Michelle
AU - Wickland, Kimberly
AU - Antoniades, Dermot
AU - Ayala-Borda, Paola
AU - Canário, Joao
AU - Drake, Travis W.
AU - Folhas, Diogo
AU - Hazuková, Václava
AU - Kivilä, Henriikka
AU - Klanten, Yohanna
AU - Lamoureux, Scott F.
AU - Laurion, Isabelle
AU - Pilla, Rachel M.
AU - Vonk, Jorien E.
AU - Zolkos, Scott
AU - Vincent, Warwick F.
N1 - 7428, AqE.
PY - 2022/11/3
Y1 - 2022/11/3
N2 - While the sentinel nature of freshwater systems is now well-recognized, widespread integration of freshwater processes and patterns into our understanding of broader climate-driven Arctic terrestrial ecosystem change has been slow. We review the current understanding across Arctic freshwater systems of key sentinel responses to climate, which are attributes of these systems with demonstrated and sensitive responses to climate forcing. These include ice regimes, temperature and thermal structure, river baseflow, lake area and water level, permafrost-derived dissolved ions and nutrients, carbon mobilization (dissolved organic carbon, greenhouse gases, and radiocarbon), dissolved oxygen concentrations, lake trophic state, various aquatic organisms and their traits, and invasive species. For each sentinel, our objectives are to clarify linkages to climate, describe key insights already gained, and provide suggestions for future research based on current knowledge gaps. We suggest that tracking key responses in Arctic freshwater systems will expand understanding of the breadth and depth of climate-driven Arctic ecosystem changes, provide early indicators of looming, broader changes across the landscape, and improve protection of freshwater biodiversity and resources.
AB - While the sentinel nature of freshwater systems is now well-recognized, widespread integration of freshwater processes and patterns into our understanding of broader climate-driven Arctic terrestrial ecosystem change has been slow. We review the current understanding across Arctic freshwater systems of key sentinel responses to climate, which are attributes of these systems with demonstrated and sensitive responses to climate forcing. These include ice regimes, temperature and thermal structure, river baseflow, lake area and water level, permafrost-derived dissolved ions and nutrients, carbon mobilization (dissolved organic carbon, greenhouse gases, and radiocarbon), dissolved oxygen concentrations, lake trophic state, various aquatic organisms and their traits, and invasive species. For each sentinel, our objectives are to clarify linkages to climate, describe key insights already gained, and provide suggestions for future research based on current knowledge gaps. We suggest that tracking key responses in Arctic freshwater systems will expand understanding of the breadth and depth of climate-driven Arctic ecosystem changes, provide early indicators of looming, broader changes across the landscape, and improve protection of freshwater biodiversity and resources.
U2 - 10.1139/as-2022-0021
DO - 10.1139/as-2022-0021
M3 - Article
SN - 2368-7460
JO - Arctic Science
JF - Arctic Science
ER -