New highland distribution records of multiple Anopheles species in the Ecuadorian Andes
2011

New Records of Anopheles Mosquitoes in the Ecuadorian Highlands

Sample size: 438 publication Evidence: moderate

Author Information

Author(s): Lauren L Pinault, Fiona F Hunter

Primary Institution: Brock University

Hypothesis

This study attempts to expand the current knowledge of the distribution of common Anopheles species in Ecuador, particularly in highland regions.

Conclusion

The study documents the establishment of multiple Anopheles species in high altitude regions of Ecuador, often in areas where malaria eradication programs are not focused.

Supporting Evidence

  • Five species of Anopheles were identified in highland regions of Ecuador.
  • Anopheles albimanus was previously considered a lowland species but has been found at altitudes up to 1,541 m.
  • Anopheles pseudopunctipennis has been documented at altitudes up to 2,800 m in Bolivia.

Takeaway

Scientists found that some mosquitoes that spread malaria are now living in higher places in Ecuador than before, which could lead to more malaria cases.

Methodology

Field collections of Anopheles larvae were conducted in various regions of Ecuador, focusing on high-altitude areas, and larvae were identified using morphological keys and genetic sequencing.

Limitations

The study did not include lower-altitude Amazonian regions due to poor road access.

Statistical Information

P-Value

p < 0.001

Statistical Significance

p<0.05

Digital Object Identifier (DOI)

10.1186/1475-2875-10-236

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