Blood Parasites in Spotted Owls
Author Information
Author(s): Heather D. Ishak, John P. Dumbacher, Nancy L. Anderson, John J. Keane, Gediminas Valkiūnas, Susan M. Haig, Lisa A. Tell, Ravinder N. M. Sehgal
Primary Institution: San Francisco State University
Hypothesis
Could Barred Owls be a source of novel strains of disease such as avian malaria or other blood parasites potentially harmful for Spotted Owls?
Conclusion
The study found that Spotted Owls have a higher prevalence of blood parasites compared to Barred Owls, which may give Barred Owls a competitive advantage.
Supporting Evidence
- California Spotted Owls had the greatest number of simultaneous multi-species infections (44%).
- One Plasmodium parasite was documented in a Northern Spotted Owl for the first time.
- Barred Owls on the West Coast had a lower prevalence of infection (15%) compared to Spotted Owls.
Takeaway
This study looked at blood parasites in owls and found that Spotted Owls get sick more often than Barred Owls, which could make it harder for them to survive.
Methodology
The study surveyed blood samples from 542 owls across twelve species using PCR and DNA sequencing techniques to detect blood parasites.
Potential Biases
Potential biases may arise from the reliance on samples from rehabilitation centers, which may not represent the general population.
Limitations
The study's findings may be influenced by the specific locations and times of sampling, and the sample sizes for some species were small.
Participant Demographics
The study included 542 individuals from twelve owl species, with a focus on Northern and California Spotted Owls.
Statistical Information
P-Value
p<0.001
Statistical Significance
p<0.007
Digital Object Identifier (DOI)
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