ArticleScientific reports2017
Evaluating anthropogenic threats to endangered killer whales to inform effective recovery plans.
Article in Scientific reports, 2017. 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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Who cites it
17 citing papers in PubMed.
- Article
- A Public Dataset of Annotated Orcinus orca Acoustic Signals for Detection and Ecotype Classification.Scientific data · 2025Article
- The orca (Frontiers in neuroanatomy · 2025Article
- Navigating the unknown: assessing anthropogenic threats to beaked whales, family Ziphiidae.Royal Society open science · 2024Article
- The role of operators in sustainable whale-watching tourism: Proposing a continuous training framework.PloS one · 2024Article
- Epidemiology of skin changes in endangered Southern Resident killer whales (Orcinus orca).PloS one · 2023Article
- Managing the effects of multiple stressors on wildlife populations in their ecosystems: developing a cumulative risk approach.Proceedings. Biological sciences · 2022Article
- A stochastic model for estimating sustainable limits to wildlife mortality in a changing world.Conservation biology : the journal of the Society for Conservation Biology · 2022Article
- Climate change and cetacean health: impacts and future directions.Philosophical transactions of the Royal Society of London. Series B, Biological sciences · 2022Review
- A stochastic simulation model for assessing the masking effects of road noise for wildlife, outdoor recreation, and bioacoustic monitoring.Oecologia · 2022Article
- Article
- Suitability Analysis of Acoustic Refugia for Endangered Killer Whales (Orcinus orca) Using the GIS-based Logic Scoring of Preference Method.Environmental management · 2021Article
- Understanding curriculum as geo/biospheric text.Prospects · 2021Article
- Article
- Hidden Markov models reveal temporal patterns and sex differences in killer whale behavior.Scientific reports · 2019Article
- Article
- Divergent foraging strategies between populations of sympatric matrilineal killer whales.Behavioral ecology : official journal of the International Society for Behavioral EcologyArticle
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Authors and funding
10 authors.
Funding
No grant is acknowledged in the PubMed record.
Abstract
Understanding cumulative effects of multiple threats is key to guiding effective management to conserve endangered species. The critically endangered, Southern Resident killer whale population of the northeastern Pacific Ocean provides a data-rich case to explore anthropogenic threats on population viability. Primary threats include: limitation of preferred prey, Chinook salmon; anthropogenic noise and disturbance, which reduce foraging efficiency; and high levels of stored contaminants, including PCBs. We constructed a population viability analysis to explore possible demographic trajectories and the relative importance of anthropogenic stressors. The population is fragile, with no growth projected under current conditions, and decline expected if new or increased threats are imposed. Improvements in fecundity and calf survival are needed to reach a conservation objective of 2.3% annual population growth. Prey limitation is the most important factor affecting population growth. However, to meet recovery targets through prey management alone, Chinook abundance would have to be sustained near the highest levels since the 1970s. The most optimistic mitigation of noise and contaminants would make the difference between a declining and increasing population, but would be insufficient to reach recovery targets. Reducing acoustic disturbance by 50% combined with increasing Chinook by 15% would allow the population to reach 2.3% growth.
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