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Insectos hallados en nidos y dormideros de Cranioleuca pyrrhophia (Vieillot, 1817) [Aves: Furnariidae] de la Argentina

Cranioleuca pyrrhophia (Vieillot, 1817) is a furnarid bird that is distributed in Brazil, Paraguay, Uruguay and Argentina. The nests are globular or vertical ovoid, with an upper lateral entrance, built of sticks, and the brood chamber lined with soft plant materials and feathers. In addition, it bu...

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Bibliographic Details
Published in:Idesia 2022, Vol.40 (3), p.43-49
Main Authors: Di Lorio, Osvaldo R, Turienzo, P
Format: Article
Language:Spanish
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Summary:Cranioleuca pyrrhophia (Vieillot, 1817) is a furnarid bird that is distributed in Brazil, Paraguay, Uruguay and Argentina. The nests are globular or vertical ovoid, with an upper lateral entrance, built of sticks, and the brood chamber lined with soft plant materials and feathers. In addition, it builds roots with soft plant materials in the form of a tunnel with an entrance on each side. The insects found in one nest of C. pyrrhophia in Zelaya (Buenos Aires), two nests in Santa Rosa and Toay (La Pampa) and 8 roots in Toay (La Pampa) were adults belonging to Coleoptera, Diptera, Hemiptera, Hymenoptera y Lepidoptera. Only 2 Coleoptera families and 2 Hemiptera families are shared among the nests and roots in the province of La Pampa. The 3 families of Coleoptera present in the Buenos Aires nest are shared with the roots of La Pampa and only 1 family (Curculionidae) with nests of La Pampa. The order Hymenoptera was only present in the Buenos Aires nest. The Coleoptera and Hemiptera species used the nests to hibernate, with two species showing the highest abundance, Cycloneda ancoralis and Missipus variabilis. The low abundance of insects in the roosts is related to the material witj which they are built. The roosts of this species are redescribed Cranioleuca pyrrhophia (Vieillot, 1817) es un furnárido que se distribuye en Brasil, Paraguay, Uruguay y Argentina. Los nidos son globulares u ovoides verticales, con una entrada lateral superior, construidos de palitos, y la cámara de cría revestida de materiales vegetales blandos y plumas. Además construye dormideros con materiales vegetales blandos en forma de túnel con una entrada a cada lado. Los insectos hallados en un nido de C. pyrrhophia en Zelaya (Buenos Aires), dos nidos de Santa Rosa y Toay (La Pampa) y 8 dormideros de Toay (La Pampa) fueron adultos pertenecientes a Coleoptera, Diptera, Hemiptera, Hymenoptera y Lepidoptera. Solo 2 familias de Coleoptera y 2 familias de Hemiptera son compartidas entre los nidos y los dormideros de la provincia de La Pampa. Las 3 familias de Coleoptera presentes en el nido de Buenos Aires son compartidas con los dormideros de La Pampa y solo 1 familia (Curculionidae) con nidos de La Pampa. El orden Hymenoptera solo estuvo presente en el nido de Buenos Aires. Las especies de Coleoptera y Hemiptera utilizaron los nidos para hibernar, y fueron dos especies las que presentaron mayor abundancia, Cycloneda ancoralis y Missipus variabilis. La baja abundancia de insectos en los dor
ISSN:0073-4675
0718-3429
DOI:10.4067/s0718-34292022000300043