Resumo

ARAMBURU, Rosana et al. ESTADO ACTUAL DE UNA POBLACIÓN URBANA DE COTORRA Myiopsitta monachus EN ARGENTINA. Hornero [online]. 2023, vol.38, n.2, pp.2-2. ISSN 0073-3407.  http://dx.doi.org/10.56178/eh.v38i2.1432.

The Monk Parakeet Myiopsitta monachus has colonized cities in several regions of the world. We aimed to assess the current status of the population of Myiopsitta monachus in La Plata city (Buenos Aires Provin-ce), Argentina, located within the original distribution range of the species. We aimed to describe the charac-teristics of the nests and the trees where they were built, and to assess changes over time. We surveyed all the tree groves in green spaces and recorded 671 nests and 1,344 chambers in 288 trees. Most of the trees where Myiopsitta monachus nested corresponded to Eucalyptus sp., while the rest corresponded to Araucaria angustifolia, Pinus sp., and Platanus sp. Most nests had only one chamber, and were built on primary branches and in the first third of the branch. Between 2008 and 2016, the number of nests and trees with nests was tripled, and the num-ber of chambers was quadrupled. The relative percentage of nests with a single chamber decreased throughout the period studied. Our observations support the hypothesis that Monk Parakeets tend to increase the number of chambers per nest rather than build new nests.

Palavras-chave : chambers; green spaces; La Plata city; location on branches; nests; trees.

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