Cooperative Research Units
Education, Research And Technical Assistance For Managing Our Natural Resources
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Applying downscaled climate projections to inform decisions


June 2014 - June 2019


This project is designed to help prevent listing Eleutherodactylus species that are at risk of becoming endangered under the Endangered Species List. Eleutherodactylus species are of conservation interest, and are typified by high endemism, relative low vagility, and largely stenoclimatic. This project will address two objectives that will help the decision makers in the U.S. Fish and Wildlife Service to formulate conservation measures. First, ascertain physiological thresholds (temperature, humidity) of selected species (biological models). This critical to permit forecasting species distribution in response to environmental changes and identify potential environmental refugia. Second, develop and test translocation protocols to either enhance populations via reintroductions or translocations to locations characterized by long-term suitability (refugia). Suitable areas for long-term conservation will be identified by combining physiological threshold information, downscaled climate projections (SE Climate Science Center), and a decision support tool to conduct habitat threats and risk assessments.

Research Products and Activities

Peer Reviewed Publications

  • Monroe, K. E., J. A. Collazo, K. Pacifici, B. J. Reich, A. R. Puente-Rolón, and A. J. Terando. 2017. Occupancy and index of abundance of Eleutherodactylus wightmanae and E. brittoni along elevational gradients in west-central Puerto Rico. Caribbean Naturalist 40:1-18. ( ISSN 2326-7119 [online]).
  • Monroe, K. E, J. A. Collazo, K. Pacifici, B. J. Reich, A. R. Puente-Rolón, and A. J. Terando. 2017. Occupancy and abundance of Eleutherodactylus Frogs in Coffee Plantations in Puerto Rico. Herpetologica 73:297-306.

Current Staff

Federal Staff: 95

Masters Students: 240

Phd Students: 142

Post Docs: 52

University Staff: 242

5 Year Summary

Students graduated: 702

Scientific Publications: 1951

Presentations: 4264



  • Jaime CollazoPrincipal Investigator
  • Ana RiveraStudent
  • Kelen MonroeStudent

Funding Agencies

  • Science Support Program, USGS


Cooperative Research Units Program Headquarters Cooperators

  1. U.S. Geological Survey