Effective integration of drone technology for mapping and managing palm species in the Peruvian Amazon

Ximena Tagle Casapia (), Rodolfo Cardenas-Vigo, Diego Marcos, Ernesto Fernández Gamarra, Harm Bartholomeus, Eurídice N. Honorio Coronado, Silvana Liberto Porles, Lourdes Falen, Susan Palacios, Nandin-Erdene Tsenbazar, Gordon Mitchell, Ander Dávila Díaz, Freddie C. Draper, Gerardo Flores Llampazo, Pedro Pérez-Peña, Giovanna Chipana, Dennis Castillo Torres, Martin Herold and Timothy R. Baker
Additional contact information
Ximena Tagle Casapia: Wageningen University & Research
Rodolfo Cardenas-Vigo: Iquitos
Diego Marcos: Wageningen University & Research
Ernesto Fernández Gamarra: Servicio Nacional de Áreas Naturales Protegidas por el Estado (SERNANP)
Harm Bartholomeus: Wageningen University & Research
Eurídice N. Honorio Coronado: Iquitos
Silvana Liberto Porles: Iquitos
Lourdes Falen: Iquitos
Susan Palacios: University of Brescia
Nandin-Erdene Tsenbazar: Wageningen University & Research
Gordon Mitchell: University of Leeds
Ander Dávila Díaz: Iquitos
Freddie C. Draper: University of Leeds
Gerardo Flores Llampazo: Iquitos
Pedro Pérez-Peña: Iquitos
Giovanna Chipana: Servicio Nacional de Áreas Naturales Protegidas por el Estado (SERNANP)
Dennis Castillo Torres: Iquitos
Martin Herold: Wageningen University & Research
Timothy R. Baker: University of Leeds

Nature Communications, 2025, vol. 16, issue 1, 1-12

Abstract: Abstract Remote sensing data could increase the value of tropical forest resources by helping to map economically important species. However, current tools lack precision over large areas, and remain inaccessible to stakeholders. Here, we work with the Protected Areas Authority of Peru to develop and implement precise, landscape-scale, species-level methods to assess the distribution and abundance of economically important arborescent Amazonian palms using field data, visible-spectrum drone imagery and deep learning. We compare the costs and time needed to inventory and develop sustainable fruit harvesting plans in two communities using traditional plot-based and our drone-based methods. Our approach detects individual palms of three species, even when densely clustered (average overall score, 74%), with high accuracy and completeness for Mauritia flexuosa (precision; 99% and recall; 81%). Compared to plot-based methods, our drone-based approach reduces costs per hectare of an inventory of Mauritia flexuosa for a management plan by 99% (USD 5 ha-1 versus USD 411 ha-1), and reduces total operational costs and personnel time to develop a management plan by 23% and 36%, respectively. These findings demonstrate how tailoring technology to the scale and precision required for management, and involvement of stakeholders at all stages, can help expand sustainable management in the tropics.

Date: 2025
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DOI: 10.1038/s41467-025-58358-5

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