Breeding southern house wrens exhibit a threat-sensitive response when exposed to different predator models
We assessed the ability of southern house wrens (Troglodytes aedon musculus) to recognize and discriminate different birds of prey. We exposed nesting birds to stuffed specimens of two sympatric predator species, the chimango caracara (Milvago chimango, a nest predator) and the roadside hawk (Buteo...
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2018
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| Acceso en línea: | https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_02890771_v36_n1_p43_DureRuiz http://hdl.handle.net/20.500.12110/paper_02890771_v36_n1_p43_DureRuiz |
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paper:paper_02890771_v36_n1_p43_DureRuiz2023-06-08T15:27:04Z Breeding southern house wrens exhibit a threat-sensitive response when exposed to different predator models Antipredator response Bird of prey Predation risk Predator recognition Threat-sensitive response We assessed the ability of southern house wrens (Troglodytes aedon musculus) to recognize and discriminate different birds of prey. We exposed nesting birds to stuffed specimens of two sympatric predator species, the chimango caracara (Milvago chimango, a nest predator) and the roadside hawk (Buteo magnirostris, a predator of adults and nests), and to a dummy of a non-sympatric predator, the double-toothed kite (Harpagus bidentatus, a predator of adults). Nesting wrens avoided going into their nest or took a longer time to resume their parental duties when exposed to the predators than when they were exposed to a control dummy (Chrysomus ruficapillus, a sympatric blackbird). Nest avoidance was higher when birds were exposed to the roadside hawk but no differences were detected when exposed to the chimango caracara or the double-toothed kite. The results indicate that southern house wrens are able to recognize a predator, responding in a graded manner. Our findings support the hypothesis that southern house wrens exhibit a threat-sensitive response during breeding. Also, individuals were able to recognize the unknown predator but failed to correctly assess the threat level represented by it. We propose that correct assessment of threat level by house wrens requires direct experience with the predator, which might mediate in the modulation of the response. © 2017, Japan Ethological Society and Springer Japan KK. 2018 https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_02890771_v36_n1_p43_DureRuiz http://hdl.handle.net/20.500.12110/paper_02890771_v36_n1_p43_DureRuiz |
| institution |
Universidad de Buenos Aires |
| institution_str |
I-28 |
| repository_str |
R-134 |
| collection |
Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA) |
| topic |
Antipredator response Bird of prey Predation risk Predator recognition Threat-sensitive response |
| spellingShingle |
Antipredator response Bird of prey Predation risk Predator recognition Threat-sensitive response Breeding southern house wrens exhibit a threat-sensitive response when exposed to different predator models |
| topic_facet |
Antipredator response Bird of prey Predation risk Predator recognition Threat-sensitive response |
| description |
We assessed the ability of southern house wrens (Troglodytes aedon musculus) to recognize and discriminate different birds of prey. We exposed nesting birds to stuffed specimens of two sympatric predator species, the chimango caracara (Milvago chimango, a nest predator) and the roadside hawk (Buteo magnirostris, a predator of adults and nests), and to a dummy of a non-sympatric predator, the double-toothed kite (Harpagus bidentatus, a predator of adults). Nesting wrens avoided going into their nest or took a longer time to resume their parental duties when exposed to the predators than when they were exposed to a control dummy (Chrysomus ruficapillus, a sympatric blackbird). Nest avoidance was higher when birds were exposed to the roadside hawk but no differences were detected when exposed to the chimango caracara or the double-toothed kite. The results indicate that southern house wrens are able to recognize a predator, responding in a graded manner. Our findings support the hypothesis that southern house wrens exhibit a threat-sensitive response during breeding. Also, individuals were able to recognize the unknown predator but failed to correctly assess the threat level represented by it. We propose that correct assessment of threat level by house wrens requires direct experience with the predator, which might mediate in the modulation of the response. © 2017, Japan Ethological Society and Springer Japan KK. |
| title |
Breeding southern house wrens exhibit a threat-sensitive response when exposed to different predator models |
| title_short |
Breeding southern house wrens exhibit a threat-sensitive response when exposed to different predator models |
| title_full |
Breeding southern house wrens exhibit a threat-sensitive response when exposed to different predator models |
| title_fullStr |
Breeding southern house wrens exhibit a threat-sensitive response when exposed to different predator models |
| title_full_unstemmed |
Breeding southern house wrens exhibit a threat-sensitive response when exposed to different predator models |
| title_sort |
breeding southern house wrens exhibit a threat-sensitive response when exposed to different predator models |
| publishDate |
2018 |
| url |
https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_02890771_v36_n1_p43_DureRuiz http://hdl.handle.net/20.500.12110/paper_02890771_v36_n1_p43_DureRuiz |
| _version_ |
1768542036276805632 |