Talamanca-Osa Ecological Forecasting

From left to right: 2018 through 2019 Normalized Difference Vegetation Index (NDVI), 2018 through 2019 Enhanced Vegetation Index (EVI), 1987 through 2019 EVI change, and 2018 land use/land cover classification derived from Landsat 5 TM and Landsat 8 OLI data. Dark green, purple, magenta, and green indicate areas of high or increased vegetation. These parameters helped assess habitat connectivity for a jaguar corridor in the southern part of Puntarenas province in Costa Rica.

Determining Habitat Suitability to Establish a Jaguar Corridor between the Talamanca Mountains and the Osa Peninsula in Costa Rica

Costa Rica contains many diverse environments, including La Amistad International Peace Park in the Talamanca Mountains and Corcovado National Park on the Osa Peninsula. Jaguars (Panthera onca) can be found throughout these two parks, but urbanization and agricultural development have fragmented habitats, isolating these populations. As a result, this apex predator and keystone species, is endangered throughout the country. NASA DEVELOP partnered with the Arizona Center for Nature Conservation – Phoenix Zoo and Osa Conservation to design a jaguar corridor between these two protected areas to connect isolated populations by linking habitat fragments, facilitating movement. This project used Landsat 5 Thematic Mapper (TM), Landsat 8 Operational Land Imager (OLI) and PlanetScope satellite imagery to assess historical vegetation health and classify current land use and land cover. Forecasting classifications to 2030 identified potential risk areas for agricultural expansion, increased development, preserved habitat fragments, and human-jaguar conflict. This land use trend analysis informed a suitability assessment for the implementation of a jaguar corridor.


Project Video:
Corridor to Survival
Location
Georgia – Athens
Term
Spring 2019
Partner(s)
Phoenix Zoo, Arizona Center for Nature Conservation
Osa Conservation
NASA Earth Observations
Landsat 5 TM
Landsat 8 OLI
PlanetScope
Team
Hikari Murayama (Project Lead)
Brooke Bartlett
Ryan Palmer
Samuel Furey
Advisor(s)
Dr. Marguerite Madden (University of Georgia)
Steve Padgett-Vasquez (University of Georgia)