Relaciones tróficas entre mamíferos herbívoros nativos y exóticos del Parque Provincial Ischigualasto (San Juan, Argentina)

Research in Ischigualasto Provincial Park reveals that exotic herbivores exhibit broader and more consistent trophic niche breadth compared to native species, which show narrower niches, particularly during the dry season. Despite low densities of exotic species, diet overlap between natives and exotics remains stable across seasons, suggesting minimal competition for food resources. The study highlights the importance of permanent monitoring to assess potential future impacts of exotic species on native herbivore communities in this hyper-arid Monte region.

Reus, M. L., de los Ríos, C., Peco, B., Giannoni, S. M., & Campos, C. M. (2017). Relaciones tróficas entre mamíferos herbívoros nativos y exóticos del Parque Provincial Ischigualasto (San Juan, Argentina). Ecología Austral, 27(3), 392–403. https://doi.org/10.25260/ea.17.27.3.0.545