Rarity and conservation status of the Colombian Speckled Tree Rat, Pattonomys semivillosus (I. Geoffroy, 1838)

Author:

Chacón-Pacheco Julio J.12ORCID,Lozano-Flórez Julián3ORCID,Avendaño-Maldonado Luis Jose4ORCID,Racero-Casarrubia Javier1ORCID,Montoya-Patiño Laura5ORCID,Ramírez-Chaves Héctor Emilio6ORCID

Affiliation:

1. Grupo de Investigación Biodiversidad Unicórdoba , Universidad de Córdoba , Carrera 6 No. 76-103, Cod. Postal 230002 , Montería , Córdoba , Colombia

2. Laboratorio de Ecología Funcional Unidad de Ecología y Sistemática (UNESIS), Laboratorio de Ecología Funcional, Facultad de Ciencias , Pontificia Universidad Javeriana , Cod. Postal 110231 , Bogotá , Colombia

3. Colecciones biológicas , Instituto de Investigación de Recursos Biológicos Alexander von Humboldt , Carrera 8 # 15-08, Villa de Leyva , Boyacá , Colombia

4. Grupo de Investigación Biodiversidad del Caribe Colombiano , Semillero de Mastozoología, Universidad del Atlántico , Carrera 30 No. 8-49 , Puerto Colombia , Atlántico , Colombia

5. Grupo Prodeco , Calle 77 B No. 59–61, Piso 5 , Barranquilla , Colombia

6. Departamento de Ciencias Biológicas, Facultad de Ciencias Exactas y Naturales , Universidad de Caldas, y Centro de Museos, Museo de Historia Natural, Universidad de Caldas , Calle 65 # 26-10 , Manizales , Caldas , Colombia

Abstract

Abstract The Colombian Speckled Tree Rat, Pattonomys semivillosus, is a little-known rodent endemic to the Lower Magdalena River basin at the Caribbean Coast of Colombia. To date it is the only species of Pattonomys documented in the country. We provide information on the rarity, and conservation status of P. semivillosus based on the current and potential distribution, population density and size using information from the literature, new records, and museum vouchers. We confirmed 66 occurrences that belong to 25 localities in six departments (Atlántico, Bolívar, Cesar, La Guajira, Magdalena, Santander, and Sucre) in northern Colombia, including 18 new localities not previously reported in the literature, mostly in the highly threatened Tropical Dry Forest ecosystem. The population density in three sites of Department of Cesar was 5.4 ind/km2, 5.9 ind/km2, and 32.4 ind/km2. The species matches with the Category D of rarity, and we suggest an update to the threatened assessment (from Least Concern to Near Threatened). This information will contribute to update the current IUCN assessment of the species.

Publisher

Walter de Gruyter GmbH

Subject

Animal Science and Zoology,Ecology, Evolution, Behavior and Systematics

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