3.9 Article

First report of the Philornis torquans complex in adult birds in continental Ecuador: Is parasitism by Philornis being underestimated?

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REVISTA MEXICANA DE BIODIVERSIDAD
卷 93, 期 -, 页码 -

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INST BIOLOGIA, UNIV NACIONAL AUTONOMA MEXICO
DOI: 10.22201/ib.20078706e.2022.93.4080

关键词

Andean dry forest; Dipteran parasites; Host; Larvae; Myiasis

资金

  1. Universidad San Francisco de Quito
  2. [HUBI 12434]

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Myiasis by Philornis commonly occurs in Neotropical birds, but parasitism in adults has been poorly studied compared to nestlings. In an Andean dry forest in Ecuador, we report for the first time infestations by Philornis larvae in adult birds of six species of passerine birds, and expand the knowledge of the host range and geographic distribution of the P. torquans complex.
Myiasis by Philornis is a usual phenomenon in Neotropical birds. Philornis larvae are hematophagous and are known to affect both nestlings and adults. Still, parasitism in adults seems opportunistic and has been poorly studied compared to parasitism in nestlings. Here, we inspected 1,429 adult and juvenile birds of 41 species from an Andean dry forest in northern Ecuador, searching for infestations by Philornis larvae. For the first time, we report parasitism by Philornis in adult birds of 6 species of passerine birds (Troglodytes aedon, Conirostrum cinereum, Geospizopsis plebejus, Zonotrichia capensis, Pheucticus chrysogaster, and Spinus magellanicus). We also report the first cases of infestation by the Philornis torquans complex in Ecuador and provide data on the prevalence of Philornis myiasis in this Andean dry forest. We extend both the host range and the geographic distribution of the P. torquans complex.

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