Alarm calls of the Southern House Wren Troglodytes musculus: Variation with nesting stage and predator model
Alarm calls given by parents when risk is detected during nesting may be considered a form of parental defense. We analyzed variations in callings of breeding pairs of the Southern House Wren Troglodytes musculus during the nesting cycle and when faced with different predator models. Nesting birds w...
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2009
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| Acceso en línea: | https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_00218375_v150_n4_p853_Fasanella http://hdl.handle.net/20.500.12110/paper_00218375_v150_n4_p853_Fasanella |
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paper:paper_00218375_v150_n4_p853_Fasanella2023-06-08T14:42:07Z Alarm calls of the Southern House Wren Troglodytes musculus: Variation with nesting stage and predator model Acoustic signal Alarm calls Communication Nesting cycle Troglodytes musculus antipredator defense bioacoustics calling behavior nesting songbird Aves Troglodytes Troglodytes musculus Alarm calls given by parents when risk is detected during nesting may be considered a form of parental defense. We analyzed variations in callings of breeding pairs of the Southern House Wren Troglodytes musculus during the nesting cycle and when faced with different predator models. Nesting birds were exposed to stuffed models at different nesting stages (early and late during incubation, and nests with younger and older nestlings). Nests were also exposed to different predator models where the calling response of breeding adults and acoustic structure variations of the calls were analyzed. The presence of a predator model increased the parents' alarm calls along the nesting stage. This result supports the hypothesis that the higher the nest reproductive value, the higher the nest defense performed by the Southern House Wren. However, it also supports the notion that alarm calls could be used by parents to silence nestlings and reduce their detectability. Alarm calls also varied according to the predator model presented. We suggest that alarm calls variations of Southern House Wrens could encode information about the kind of predator and the risk envisaged through variations of call rates. © Dt. Ornithologen-Gesellschaft e.V. 2009. 2009 https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_00218375_v150_n4_p853_Fasanella http://hdl.handle.net/20.500.12110/paper_00218375_v150_n4_p853_Fasanella |
| institution |
Universidad de Buenos Aires |
| institution_str |
I-28 |
| repository_str |
R-134 |
| collection |
Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA) |
| topic |
Acoustic signal Alarm calls Communication Nesting cycle Troglodytes musculus antipredator defense bioacoustics calling behavior nesting songbird Aves Troglodytes Troglodytes musculus |
| spellingShingle |
Acoustic signal Alarm calls Communication Nesting cycle Troglodytes musculus antipredator defense bioacoustics calling behavior nesting songbird Aves Troglodytes Troglodytes musculus Alarm calls of the Southern House Wren Troglodytes musculus: Variation with nesting stage and predator model |
| topic_facet |
Acoustic signal Alarm calls Communication Nesting cycle Troglodytes musculus antipredator defense bioacoustics calling behavior nesting songbird Aves Troglodytes Troglodytes musculus |
| description |
Alarm calls given by parents when risk is detected during nesting may be considered a form of parental defense. We analyzed variations in callings of breeding pairs of the Southern House Wren Troglodytes musculus during the nesting cycle and when faced with different predator models. Nesting birds were exposed to stuffed models at different nesting stages (early and late during incubation, and nests with younger and older nestlings). Nests were also exposed to different predator models where the calling response of breeding adults and acoustic structure variations of the calls were analyzed. The presence of a predator model increased the parents' alarm calls along the nesting stage. This result supports the hypothesis that the higher the nest reproductive value, the higher the nest defense performed by the Southern House Wren. However, it also supports the notion that alarm calls could be used by parents to silence nestlings and reduce their detectability. Alarm calls also varied according to the predator model presented. We suggest that alarm calls variations of Southern House Wrens could encode information about the kind of predator and the risk envisaged through variations of call rates. © Dt. Ornithologen-Gesellschaft e.V. 2009. |
| title |
Alarm calls of the Southern House Wren Troglodytes musculus: Variation with nesting stage and predator model |
| title_short |
Alarm calls of the Southern House Wren Troglodytes musculus: Variation with nesting stage and predator model |
| title_full |
Alarm calls of the Southern House Wren Troglodytes musculus: Variation with nesting stage and predator model |
| title_fullStr |
Alarm calls of the Southern House Wren Troglodytes musculus: Variation with nesting stage and predator model |
| title_full_unstemmed |
Alarm calls of the Southern House Wren Troglodytes musculus: Variation with nesting stage and predator model |
| title_sort |
alarm calls of the southern house wren troglodytes musculus: variation with nesting stage and predator model |
| publishDate |
2009 |
| url |
https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_00218375_v150_n4_p853_Fasanella http://hdl.handle.net/20.500.12110/paper_00218375_v150_n4_p853_Fasanella |
| _version_ |
1768542820317003776 |