ArticlePloS one2014
The effects of birth weight and maternal care on survival of juvenile Steller sea lions (Eumetopias jubatus).
Article in PloS one, 2014. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 17 papers.
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The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.
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Who cites it
17 citing papers in PubMed, 35 citations in OpenAlex.
- The ecology of gestational growth in a wild cooperative mammal.The Journal of animal ecology · 2026Article
- Age-specific reproduction in female Steller sea lions in Southeast Alaska.Ecology and evolution · 2023Article
- Influences of Maternal Weight and Geographic Factors on Offspring Traits of the Edible Dormouse in the NE of the Iberian Peninsula.Life (Basel, Switzerland) · 2023Article
- Risk-taking neonates do not pay a survival cost in a free-ranging large mammal, the fallow deer (Royal Society open science · 2022Article
- Artificial selection in human-wildlife feeding interactions.The Journal of animal ecology · 2022Article
- The tarnished silver spoon? Trade-off between prenatal growth and telomere length in wild boar.Journal of evolutionary biology · 2022Article
- Investigating life-history traits of Steller sea lions with multistate hidden Markov mark-recapture models: Age at weaning and body size effects.Ecology and evolution · 2021Article
- Evaluating tooth strontium and barium as indicators of weaning age in Pacific walruses.Methods in ecology and evolution · 2020Article
- Spatial distribution, movements, and geographic range of Steller sea lions (Eumetopias jubatus) in Alaska.PloS one · 2018Article
- Survival of adult Steller sea lions in Alaska: senescence, annual variation and covariation with male reproductive success.Royal Society open science · 2018Article
- Intraperitoneal implantation of life-long telemetry transmitters in three rehabilitated harbor seal pups.BMC veterinary research · 2017Article
- Article
- Age specific survival rates of Steller sea lions at rookeries with divergent population trends in the Russian Far East.PloS one · 2015Article
- Physiological predictors of long-term survival in juvenile Steller sea lions (Eumetopias jubatus).Conservation physiology · 2015Article
- The Effect of Novel Research Activities on Long-term Survival of Temporarily Captive Steller Sea Lions (Eumetopias jubatus).PloS one · 2015Article
- A longitudinal study of Steller sea lion natality rates in the Gulf of Alaska with comparisons to census data.PloS one · 2014Article
- Maternal flexibility in Galápagos sea lions mitigates climate impacts but not population decline.Behavioral ecology : official journal of the International Society for Behavioral EcologyArticle
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Authors and funding
1 author at 1 institution in 1 country.
Funding
No grant is acknowledged in the PubMed record.
Abstract
Steller sea lions were listed as endangered following a collapse of the western distinct population beginning in the late 1970s. Low juvenile survival has been implicated as a factor in the decline. I conducted a multistate mark-recapture analysis to estimate juvenile survival in an area of the western population where sea lions are showing signs of recovery. Survival for males and females was 80% between 3 weeks and 1 year of age. Approximately 20% of juveniles continued to be nursed by their mothers between ages 1 and 2 and 10% between ages 2 and 3. Survival for juveniles that suckled beyond 1 year was 88.2% and 89.9% to ages 2 and 3, respectively. In contrast, survival for individuals weaned by age 1 was 40.6% for males and 64.2% for females between ages 1 and 2. Birth mass positively influenced survival for juveniles weaned at age 1 but had little effect on individuals continuing to suckle. Cumulative survival to age 4 was double that estimated during the population decline in this region. Evidence suggests that western Steller sea lions utilize a somewhat different maternal strategy than those in the eastern distinct population. Western adult females generally invest more in their pups during the first year but wean offspring by age 1 more often. This results in better survival to age 1, but greater mortality between ages 1 and 3 compared to the eastern population. Different maternal strategies may reflect density dependent pressures of populations at opposite levels of abundance.
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Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.