Utreras B., V.

• Latin American Journal of Aquatic Mammals Vol. 4, No. 2 (2005) - Short Communications
  Dry and rainy season estimations of giant otter, Pteronura brasiliensis, home range in the Yasuní National Park, Ecuador
  Abstract  PDF
• Latin American Journal of Aquatic Mammals Vol. 3, No. 1 (2004) - Short Communications
  Notes on the distribution of tucuxi, Sotalia fluviatilis (Cetacea: Delphinidae), in Ecuadorian Amazonia
  Abstract  PDF
• Latin American Journal of Aquatic Mammals Vol. 8, Nos. 1-2 (2010) - Workshop Reports
  Report of the Working Group on Distribution, Habitat Characteristics and Preferences, and Group Size
  Abstract  PDF