MORTALITY TRENDS IN NORTHERN SEA OTTERS (ENHYDRA LUTRIS KENYONI) COLLECTED FROM THE COASTS OF WASHINGTON AND OREGON, USA (2002–15)
Autor: | Marcos Isidoro-Ayza, Deanna Lynch, Jitender P. Dubey, C. LeAnn White, Susan Knowles, Krysten L. Schuler, Emily W. Lankau, Valerie I. Shearn-Bochsler, Nancy J. Thomas |
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Rok vydání: | 2018 |
Předmět: |
Male
Washington Heart Diseases 040301 veterinary sciences Parasitic Diseases Animal Population Dynamics 030231 tropical medicine Population Zoology Animals Wild Sarcocystosis Communicable Diseases Otter 0403 veterinary science Oregon 03 medical and health sciences 0302 clinical medicine Cause of Death biology.animal parasitic diseases medicine Animals education Mortality trends Ecology Evolution Behavior and Systematics Retrospective Studies Cause of death education.field_of_study Ecology Enhydra lutris biology Mortality rate 04 agricultural and veterinary sciences medicine.disease Leptospirosis Wounds and Injuries Female Otters |
Zdroj: | Journal of Wildlife Diseases. 54:238 |
ISSN: | 0090-3558 |
Popis: | During 2002−15 we examined the causes of mortality in a population of northern sea otters (Enhydra lutris kenyoni). Beachcast sea otters were collected primarily from the US coast of Washington. Although there are no permanent sea otter residents in Oregon, several beachcast otters were collected from the Oregon coast. Infectious diseases were the primary cause of death (56%) for otters we examined. Sarcocystosis was the leading infectious cause of death (54%) and was observed throughout the study period. Some infectious diseases, such as morbilliviral encephalitis and leptospirosis, were documented for a limited number of years and then not detected again despite continued testing for these pathogens in necropsied animals. Trauma was the second most common cause of death (14%) during the study period. The continued stable growth of the Washington population of otters suggests they are able to tolerate current mortality rates. |
Databáze: | OpenAIRE |
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