Heterospecific coprophagy in the white-tailed deer Odocoileus virginianus (Zimmermann, 1780) in Costa Rica

Authors

  • José Manuel Mora Carrera de Gestión Ecoturística, Sede Central, Universidad Técnica Nacional, Alajuela, Costa Rica. Department of Biology and Museum of Vertebrate Biology, Portland State University, Portland, Oregon, USA.
  • Juan de Dios Astorga-Acuña Ingeniería en Manejo Forestal y Vida Silvestre, Universidad Técnica Nacional, Atenas, Costa Rica. Sistema Nacional de Áreas de Conservación, Área de Conservación Arenal-Tempisque, Guanacaste, Costa Rica. https://orcid.org/0000-0002-1200-1495

DOI:

https://doi.org/10.31687/SaremNMS25.1168

Keywords:

Cervidae, coprophagy, dry forest, feces, herbivorous, horses

Abstract

Animals may engage in coprophagy, including heterospecific coprophagy, where they consume the feces of other species. The white-tailed deer, Odocoileus virginianus, primarily feeds on plant material, such as tender forbs and shrub shoots. This report documents a case of heterospecific coprophagy by the white-tailed deer in Costa Rica, where two individuals were observed consuming domestic horse feces. The reasons for heterospecific coprophagy in ruminants like the white-tailed deer are unclear. Nutritional supplementation, microbial transfer, or other ecological factors may play a role in this behavior. However, such a behavior also poses risks, including the transmission of diseases and parasites from other species.

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A female white-tailed deer (Odocoileus virgninianus) feeding on horse feces at Finca Cerritos, Guanacaste province, Costa Rica. Photo: Juan de Dios Astorga.

Published

05/08/2025

How to Cite

Mora, J. M., & Astorga-Acuña, J. de D. (2025). Heterospecific coprophagy in the white-tailed deer Odocoileus virginianus (Zimmermann, 1780) in Costa Rica. Notas Sobre Mamíferos Sudamericanos, 7(1). https://doi.org/10.31687/SaremNMS25.1168