Prevalence and Lineage Diversity of Avian Haemosporidians from Three Distinct Cerrado Habitats in Brazil
2011

Haemosporidian Diversity in Brazilian Cerrado

Sample size: 676 publication 10 minutes Evidence: moderate

Author Information

Author(s): Belo Nayara O., Pinheiro Renato T., Reis Elivânia S., Ricklefs Robert E., Braga Érika M.

Primary Institution: Universidade Federal de Minas Gerais

Hypothesis

Different habitats are associated with differences in the prevalence and diversity of infectious diseases in natural bird populations.

Conclusion

The prevalence and diversity of infections by Plasmodium spp. or Haemoproteus spp. did not differ significantly among the three habitats studied.

Supporting Evidence

  • 49% of the birds were infected with Plasmodium spp. or Haemoproteus spp.
  • 21 mitochondrial lineages were identified, including 11 from Plasmodium and 10 from Haemoproteus.
  • 15 of the parasite lineages had not been previously described.

Takeaway

Scientists studied birds in different areas of Brazil to see if the type of habitat affected the number of parasites they had. They found that the number of parasites was similar in all areas.

Methodology

Birds were captured and tested for haemosporidian parasites using microscopy and PCR methods.

Potential Biases

Potential biases in sampling methods and the sensitivity of diagnostic techniques.

Limitations

The study did not account for all potential environmental factors influencing parasite prevalence.

Participant Demographics

The study included 676 wild birds from 29 families and 122 species.

Statistical Information

P-Value

p=0.007

Confidence Interval

95% CI: 65–79%

Statistical Significance

p>0.05

Digital Object Identifier (DOI)

10.1371/journal.pone.0017654

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