4 Works

Data from: Age specific survival rates of Steller sea lions at rookeries with divergent population trends in the Russian Far East

Alexey V. Altukhov, Russel D. Andrews, Donald G. Calkins, Thomas S. Gelatt, Eliezer D. Gurarie, Thomas R. Loughlin, Evgeny G. Mamaev, Victor S. Nikulin, Peter A. Permyakov, Sergey D. Ryazanov, Vladimir V. Vertyankin & Vladimir N. Burkanov
After a dramatic population decline, Steller sea lions have begun to recover throughout most of their range. However, Steller sea lions in the Western Aleutians and Commander Islands are continuing to decline. Comparing survival rates between regions with different population trends may provide insights into the factors driving the dynamics, but published data on vital rates have been extremely scarce, especially in regions where the populations are still declining. Fortunately, an unprecedented dataset of marked...

Data from: Spatial distribution, movements, and geographic range of Steller sea lions (Eumetopias jubatus) in Alaska

Lauri A. Jemison, Grey W. Pendleton, Kelly K. Hastings, John M. Maniscalco & Lowell W. Fritz
The two stocks of Steller sea lions (Eumetopias jubatus) in Alaska include an endangered western stock, recently recovering in parts of its range following decades of decline, and an eastern stock which was removed from the U.S. Endangered Species List in 2013 following increasing numbers since the 1970s. Information on overlapping distributions of eastern and western sea lions is needed for management considerations. We analyzed >30,000 sightings collected from 2000-2014 of 2,385 sea lions that...

Data from: Non-linear effect of sea ice: Spectacled Eider survival declines at both extremes of the ice spectrum

Katherine S. Christie, Tuula E. Hollmen, Paul Flint & David Douglas
Understanding the relationship between environmental factors and vital rates is an important step in predicting a species’ response to environmental change. Species associated with sea ice are of particular concern because sea ice is projected to decrease rapidly in polar environments with continued levels of greenhouse gas emissions. The relationship between sea ice and the vital rates of the Spectacled Eider, a threatened species that breeds in Alaska and Russia and winters in the Bering...

CT DICOM studies from: In vivo measurements of lung volumes in ringed seals: insights from biomedical imaging

Holly Hermann-Sorensen, Nicole Thometz, Kathleen Woodie, Sophie Dennison-Gibby & Colleen Reichmuth
This dataset supports: Hermann-Sorensen, H., Thometz, N.M., Woodie, K., Dennison-Gibby, S., and Reichmuth, C. In vivo measurements of lung volumes in ringed seals: insights from biomedical imaging. Journal of Experimental Biology. Marine mammals rely on oxygen stored in blood, muscle, and lungs to support breath-hold diving and foraging at sea. Here, we used biomedical imaging to examine lung oxygen stores and other key respiratory parameters in living ringed seals (Pusa hispida). Three-dimensional models created from...

Registration Year

  • 2020
    1
  • 2018
    2
  • 2015
    1

Resource Types

  • Dataset
    4

Affiliations

  • Alaska SeaLife Center
    4
  • University of Alaska Fairbanks
    2
  • University of Washington
    1
  • University of San Francisco
    1
  • Alaska Department of Fish and Game
    1
  • National Oceanic and Atmospheric Administration
    1
  • National Marine Fisheries Service
    1
  • United States Geological Survey
    1
  • University of California, Santa Cruz
    1
  • University of Maryland, College Park
    1