Photos illustrating field activities during spring 1983 and 1984.

• Main Authors: Donna D. W. Hauser (3779470), Kathryn J. Frost (4898728), John J. Burns (11767788)
• Format: Still Image
• Language: unknown
• Published: 2021
• Subjects: Neuroscience; Evolutionary Biology; Ecology; Marine Biology; Inorganic Chemistry; Environmental Sciences not elsewhere classified; Astronomical and Space Sciences not elsewhere classified; Biological Sciences not elsewhere classified; similar studies conducted; pusa hispida </; obligate marine mammals; div >< p; eastern chukchi sea; recent environmental changes; limited baseline information; ringed seal (<; greater ice deformation; ringed seals (<; >) breeding habitat; ledyard bay ); greater overall density; excavate subnivean lairs; 2 </ sup; measure pup habitat; ringed seal structures; simple breathing holes; established study grids; landfast sea ice; ice deformation 29; 490 structures located; ringed seals; ledyard bay; breathing holes; sea ice; seal structures; landfast ice; ice habitat; study establishes; recent declines; pup lairs; baseline upon; 6 structures; 1 structures; unquantified impacts; two regions; trained dogs; spring 1983; simple haul; seasonal cover; provide protection; pacific arctic; kotzebue sound; geographic regions; future research; closer proximity; climate change; additional research; Arctic; Chukchi Sea; Pacific; Lowry; Lair; Chukchi; Climate change; Pacific Arctic; Pusa hispida; ringed seal; Sea ice
• Online Access: https://doi.org/10.1371/journal.pone.0260644.g002

Photos include: (a) field camp associated with Kotzebue Sound grid 83–1. Stakes used to mark locations within a grid are shown along the side of the tent (photo by K.J.F.); (b) “Charlie”, a Labrador retriever, indicates the location of a seal structure (photo by K.J.F.); (c) K.J.F. measuring dimensions of a structure in a linear ridge feature (photo by Sue Hills); (d) the inside of a seal lair (photo by Ann Adams); (e) ringed seal pup at a partially collapsed lair (photo by Lloyd Lowry). Photos reprinted with permission from Kathryn J. Frost.