Population abundance, pup mortality, and copulation frequency in the California sea lion in relation to the 1983 El Nino on San Nicolas Island

Author(s)
Francis, J. M. and C. B. Heath
Year
Article Title
Population abundance, pup mortality, and copulation frequency in the California sea lion in relation to the 1983 El Nino on San Nicolas Island
Book Title
Pinnipeds and El Nino: Responses to Environmental Stress.
Chapter Number
12
Editor
Trillmich, Fritz and Kathryn A. Ono
Publisher
Springer Verlag
Address
New York, NY
Pages
271-288
Start Page Number
271
Final Page
288
Review

Datapoints

Displaying 1 - 3 of 3 datapoints.
Species: California Sea Lion (Zalophus californianus)
Exposure Endpoint Type Endpoint Description Endpoint Value Sample Size Units Life Cycle Stage Specific Location Range Type
Clutches or Litters per year range of fecundity over 4 yrs; peak pup/peak female counts 4360-6952 pups pups/female/yr Adult San Nicolas Island 0.23-0.30 Exposure Factor Datasets
Survival/ Mortality range of % mortality during the first 2 mo of life; estimated over 3 yrs 10-18 2679 pups % Pup San Nicolas Island Exposure Factor Datasets
Time of Mating/ Laying time of breeding May - Aug. Not Reported Adult San Nicolas Island Exposure Factor Datasets
OEHHA California Office of Environmental Health Hazard Assessment