Extreme dispersal or human-transport? The enigmatic case of an extralimital freshwater occurrence of a Southern elephant seal from Indiana

PeerJ

article

Ana M. Valenzuela-Toro¹  Maria H. Zicos³  Nicholas D. Pyenson² 

[1] Department of Ecology and Evolutionary Biology, University of California;Department of Paleobiology, National Museum of Natural History, Smithsonian Institution;School of Biological and Chemical Sciences, Queen Mary University of London;Department of Earth Sciences;Department of Paleontology and Geology

关键词: Elephant seals;    Marine mammals;    Historical record;    Biogeography;    Zoogeography;    Historical ecology;    Zooarchaeology;    Pinnipeds;    Holocene;   

DOI  :  10.7717/peerj.9665

学科分类：社会科学、人文和艺术（综合）

来源: Inra

【 摘 要 】

Elephant seals (Mirounga spp.) are the largest living pinnipeds, and the spatial scales of their ecology, with dives over 1 km in depth and foraging trips over 10,000 km long, are unrivalled by their near relatives. Here we report the discovery of an incomplete Holocene age Southern elephant seal (M. leonina1,000 km from the closest marine effluent as a potential extreme case of dispersal emphasizes how marine invasions of freshwater systems have happened frequently through historical (and likely geological) time.

【 授权许可】

CC BY