Tripartite interaction among Rufous Hornero, Shiny Cowbirds nestlings, and Philornis torquans complex larvae

Name: Tripartite interaction among Rufous Hornero, Shiny Cowbirds nestlings, and Philornis torquans complex larvae
License: https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
Keywords: HOST PARASITE INTERACTION

Datos de investigación

Tripartite interaction among Rufous Hornero, Shiny Cowbirds nestlings, and Philornis torquans complex larvae

Autores: Fasano, Agustín Alfonso; Manzoli, Darío Ezequiel Icon

; Antoniazzi, Leandro Raúl Icon

; Saravia Pietropaolo, María José Icon

; Arce, Sofía Irene Icon

; Beldomenico, Pablo Martín Icon

; Fabre, Franco Nicolás

Colaboradores: Toffoli Arnaudo, Guillermo Daniel

Publicador: Consejo Nacional de Investigaciones Científicas y Técnicas

Fecha de depósito: 18/12/2025

Fecha de creación: 10/12/2025

Clasificación temática:

Ecología; Ciencias Veterinarias; Parasitología

Resumen

The datasets were used to examine the interaction between an ectoparasitic fly (Philornis torquans complex) and a brood-parasitic bird, the Shiny Cowbird (Molothrus bonariensis), sharing a common host, the Rufous Hornero (Furnarius rufus). The data were collected over seven breeding seasons (2007, 2008, 2009, 2014, 2015, 2023 and 2024) in an 80-ha patch of native forest located in the central region of Santa Fe Province, Argentina. These datasets were used to analyses parasite prevalence, mean abundance, and host selection by the Philornis torquans complex, and their effects on the survival of Rufous Hornero and Shiny Cowbird nestlings.

Información Técnica

The analyses include seven breeding seasons (2007, 2008, 2009, 2014, 2015, 2023 and 2024). Within each breeding season, only weeks during rufous horneros were present were considered, generally from September to December. Once eggs were detected, nests were marked and systematically followed three times per week (every 2-3 days) until all nestlings fledged or died. Nestlings within each brood were individually identified using nailclips and examined for external parasites by thoroughly inspecting the entire body surface. Detected Philornis torquans larvae were counted and their developmental stage recorded. Larval stage were classified according to size: L1 (first instar; <4 mm), L2 (second instar; 4 – 7 mm) and L3 (final instar; >7 mm). Meteorological data were obtained from an automatic meteorological station (OMIXOM) located at the Donnet campus of the Faculty of Agriculture Science, Universidad Nacional del Litoral (31º 26’ 31. 29’’ S; 60º 56’ 23.87’’ W; height above sea level: 40 meters) Parasitism by Philornis was measured as presence or absence of at least one larva of any stage for prevalence analyses, as the count of L1 larvae for analyses of mean abundance and host selection; or as the total number of larvae (all instars) for analyses assessing impact on nestlings. Each dataset employed a different study unit. For prevalence analysis, the study unit was brood. For mean abundance analysis, the study unit was brood - day, with repeated measurements taken on the same brood. For analysis of host selection by Philornis torquans within nests, the study unit was the nestling – day, with repeated measurements taken on individual nestlings irrespective of species. For survival analyses of rufous hornero and shiny cowbirds, the study unit was the nestling - day of each species, respectively.

Palabras clave: HOST PARASITE INTERACTION, BROOD PARASITE, MYIASIS, BIRDS

Alcance geográfico

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Identificador del recurso

URI: http://hdl.handle.net/11336/278074

Colecciones

Datos de Investigación(IBIGEO)
Datos de Investigación de INST.DE BIO Y GEOCIENCIAS DEL NOA

Datos de Investigación(ICIVET-LITORAL)
Datos de Investigación de INST. DE CIENCIAS VETERINARIAS DEL LITORAL

Citación

Fasano, Agustín Alfonso; Manzoli, Darío Ezequiel; Antoniazzi, Leandro Raúl; Saravia Pietropaolo, María José; Arce, Sofía Irene; Beldomenico, Pablo Martín; Fabre, Franco Nicolás; (2025): Tripartite interaction among Rufous Hornero, Shiny Cowbirds nestlings, and Philornis torquans complex larvae. Consejo Nacional de Investigaciones Científicas y Técnicas. (dataset). http://hdl.handle.net/11336/278074

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Excepto donde se diga explícitamente, este item se publica bajo la siguiente descripción: Creative Commons Attribution-NonCommercial-ShareAlike 2.5 Unported (CC BY-NC-SA 2.5)