Boom-bust cycles in gray whales associated with dynamic and changing Arctic conditions.

Autor: Stewart JD; Ocean Ecology Lab, Marine Mammal Institute, Department of Fisheries, Wildlife and Conservation Sciences, Oregon State University, Newport, OR, USA., Joyce TW; Ocean Associates, Arlington, VA, USA.; Marine Mammal and Turtle Division, National Oceanic and Atmospheric Administration (NOAA) Southwest Fisheries Science Center, La Jolla, CA, USA., Durban JW; Marine Mammal and Turtle Division, National Oceanic and Atmospheric Administration (NOAA) Southwest Fisheries Science Center, La Jolla, CA, USA.; Sealife Response, Rehabilitation and Research (SR3), Des Moines, WA, USA., Calambokidis J; Cascadia Research Collective, Olympia, WA, USA., Fauquier D; Office of Protected Resources, National Marine Fisheries Service, Silver Spring, MD, USA., Fearnbach H; Sealife Response, Rehabilitation and Research (SR3), Des Moines, WA, USA., Grebmeier JM; Chesapeake Biological Laboratory, University of Maryland Center for Environmental Science, Solomons, MD, USA., Lynn M; Marine Mammal and Turtle Division, National Oceanic and Atmospheric Administration (NOAA) Southwest Fisheries Science Center, La Jolla, CA, USA., Manizza M; Geosciences Research Division, Scripps Institution of Oceanography, University of California San Diego, La Jolla, CA, USA., Perryman WL; Marine Mammal and Turtle Division, National Oceanic and Atmospheric Administration (NOAA) Southwest Fisheries Science Center, La Jolla, CA, USA., Tinker MT; Nhydra Consulting, Halifax, NS, Canada.; Ecology and Evolutionary Biology, University of California, Santa Cruz, Santa Cruz, CA, USA., Weller DW; Marine Mammal and Turtle Division, National Oceanic and Atmospheric Administration (NOAA) Southwest Fisheries Science Center, La Jolla, CA, USA.
Jazyk: angličtina
Zdroj: Science (New York, N.Y.) [Science] 2023 Oct 13; Vol. 382 (6667), pp. 207-211. Date of Electronic Publication: 2023 Oct 12.
DOI: 10.1126/science.adi1847
Abstrakt: Climate change is affecting a wide range of global systems, with polar ecosystems experiencing the most rapid change. Although climate impacts affect lower-trophic-level and short-lived species most directly, it is less clear how long-lived and mobile species will respond to rapid polar warming because they may have the short-term ability to accommodate ecological disruptions while adapting to new conditions. We found that the population dynamics of an iconic and highly mobile polar-associated species are tightly coupled to Arctic prey availability and access to feeding areas. When low prey biomass coincided with high ice cover, gray whales experienced major mortality events, each reducing the population by 15 to 25%. This suggests that even mobile, long-lived species are sensitive to dynamic and changing conditions as the Arctic warms.
Databáze: MEDLINE
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