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Research / Ecology

Biodiversity Mapping in the Miconia Zone

Date October 14, 2025
Authors Dr. Elena Vasquez, Prof. James Thorne

October 2025 Update

This season has brought some encouraging signs. Carolina identified traces of petrel activity near the nesting burrows at Camp, including feathers and droppings. Although our motion-triggered camera hasn’t captured definitive footage yet, the evidence on the ground suggests that petrels may have returned, but simply avoided the camera’s field of view.

No successful nestings have been confirmed so far, but as Carolina explains, this is not unusual during the first year of an acoustic attraction program. It often takes multiple seasons for birds to fully commit to new or restored nesting sites.

Key Findings

  1. Endemic Resilience: Despite the encroachment of invasive species, pockets of native Miconia robinsoniana remain resilient, particularly in areas with steep topography that limits human access.
  2. Avian Corridors: The study identified critical flight corridors for the Galapagos Petrel, linking nesting sites in the upper highlands to feeding grounds at sea.
  3. Invasive Encroachment: Rubus niveus cover has increased by 15% since the last major survey in 2018, posing an immediate threat to ground-nesting birds.

Discussion

The data suggests that immediate intervention is required to halt the spread of Rubus niveus. Mechanical removal combined with the restoration of native canopy cover shows promise as a mitigation strategy. Furthermore, the identification of petrel flight corridors provides a blueprint for future protected area zoning.

Conclusion

This mapping project serves as a baseline for future monitoring efforts. Continued data collection is essential to evaluate the efficacy of conservation interventions and to adapt management strategies in the face of climate change.

Galapagos Petrel nesting site in highland vegetation
A Galapagos Petrel nest observed within the Miconia zone, showing native vegetation structure. Photo by Dr. Elena Vasquez, 2025