Terrestrial Scavenging of Marine Mammals: Cross-Ecosystem Contaminant Transfer and Potential Risks to Endangered California Condors (Gymnogyps californianus).

  title={Terrestrial Scavenging of Marine Mammals: Cross-Ecosystem Contaminant Transfer and Potential Risks to Endangered California Condors (Gymnogyps californianus).},
  author={Carolyn M. Kurle and Victoria J. Bakker and Holly E. Copeland and Joe Burnett and Jennie Jones Scherbinski and Joseph Brandt and Myra E. Finkelstein},
  journal={Environmental science \& technology},
  volume={50 17},
The critically endangered California condor (Gymnogyps californianus) has relied intermittently on dead-stranded marine mammals since the Pleistocene, and this food source is considered important for their current recovery. However, contemporary marine mammals contain persistent organic pollutants that could threaten condor health. We used stable carbon and nitrogen isotope, contaminant, and behavioral data in coastal versus noncoastal condors to quantify contaminant transfer from marine… 

Comment on "Terrestrial Scavenging of Marine Mammals: Cross-Ecosystem Contaminant Transfer and Potential Risks to Endangered California Condors (Gymnogyps californianus)".

In overlooking these contaminant and reproductive data from the original wild population of condors, Kurle et al. missed evidence that condors may well be among the species that are relatively resistant to DDE effects, and suggested that DDE was the primary cause of difficulties.

Assessing Marine Endocrine-Disrupting Chemicals in the Critically Endangered California Condor: Implications for Reintroduction to Coastal Environments.

The higher levels of HOCs in coastal condors compared to those in inland condors and lower levels ofHOC contamination in Baja California marine mammalsCompared to those from the state of California are factors to consider in condor reintroduction efforts.

Pathways of Contaminant Transport Across the Aquatic-Terrestrial Interface: Implications for Terrestrial Consumers, Ecosystems, and Management

The role of freshwater ecosystems as a source of nutrients, energy, and contaminants to terrestrial ecosystems is relatively underappreciated compared with the impact of catchment properties on

Lead Exposure And Hormonal Stress Response In California Condors

A positive association between hormonal stress response outcomes and the amount of time a condor spends at risk for lead poisoning is found, which has important implications for other scavenging species exposed to lead and other environmental contaminants worldwide.



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Chlorinated hydrocarbons in pelagic forage fishes and squid of the Southern California Bight

Assessment of the extent and magnitude of DDT and PCB bioaccumulation in the four major pelagic species of the Southern California Bight found high concentrations in northern anchovy, Pacific sardine, Pacific chub mackerel, and California market squid.

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Methylmercury biogeochemistry: a review with special reference to Arctic aquatic ecosystems

There has been increasing concern about mercury (Hg) levels in marine and freshwater organisms in the Arctic, due to the importance of traditional country foods such as fish and marine mammals to the

Changes in blubber contaminant concentrations in California sea lions (Zalophus californianus) associated with weight loss and gain during rehabilitation.

The results indicate the importance of considering the energetic context when sampling blubber for long-term contaminant monitoring and suggest an initial approach to adjust for such differences.

Spatiotemporal Patterns and Risk Factors for Lead Exposure in Endangered California Condors during 15 Years of Reintroduction

Lead exposure was a pervasive threat to California condors despite recent regulations limiting lead ammunition use and significantly increased as age and independence from intensive management increased, highlighting the challenges of restoring endangered vulture populations as they mature and become less reliant on management actions necessary to compensate for persistent threats.