Affiliation:
1. Department of Anatomy, College of Osteopathic Medicine, New York Institute of Technology, Old Westbury, NY 11568, USA
2. Center for Biomedical Innovation, College of Osteopathic Medicine, New York Institute of Technology, Old Westbury, NY 11568, USA
Abstract
Parrots (Order: Psittaciformes) represent one of the most striking and ecomorphologically diverse avian clades, spanning more than two orders of magnitude in body size with populations occupying six continents. The worldwide diaspora of parrots is largely due to the pet trade, driven by human desire for bright, colorful, and intelligent animals as companions. Some introduced species have aptly inserted themselves into the local ecosystem and established successful breeding colonies all around the globe. Notably, the United States is home to several thriving populations of introduced species including red-masked parakeets (Psittacara erythrogenys), monk parakeets (Myiopsitta monachus), nanday conures (Aratinga nenday), and red-crowned amazons (Amazona viridigenalis). Their incredible success globally begs the question as to how these birds adapt so readily to novel environments. In this commentary, we trace parrots through evolutionary history, contextualize existent naturalized parrot populations within the contiguous United States, and provide a phylogenetic regression analysis of body mass and brain size based on success in establishing breeding populations. The propensity for a parrot species to become established appears to be phylogenetically driven. Notably, parrots in the family Cacatuidae and Neotropical Pyrrhua appear to be poor at establishing themselves in the United States once released. Although brain size among Psittaciformes did not show a significant impact on successful breeding in the continental United States, we propose that the success of parrots can be attributed to their charismatic nature, significant intelligence relative to other avian lineages, and behavioral flexibility.
Funder
Center for Biomedical Innovation
Subject
General Veterinary,Animal Science and Zoology
Reference94 articles.
1. del Hoyo, J., Elliott, A., Sargatal, J., and Christie, D.A. (2010). Handbook of the Birds of the World, Lynx Edicions.
2. Vonk, J., and Shackelford, T. (2020). Encyclopedia of Animal Cognition and Behavior, Springer International Publishing.
3. Avian Coloration Genetics: Recent Advances and Emerging Questions;Stoddard;J. Hered.,2021
4. Bird Calls: Their Potential for Behavioral Neurobiology;Marler;Ann. N. Y. Acad. Sci.,2004
5. Diet Influences Life Span in Parrots (Psittaciformes);Wilkinson;Auk,2006