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dc.contributor.author
Depino, Emiliano Agustín

dc.contributor.author
Areta, Juan Ignacio

dc.date.available
2020-12-14T23:49:11Z
dc.date.issued
2020-04-26
dc.identifier.citation
Depino, Emiliano Agustín; Areta, Juan Ignacio; Interspecific territoriality despite vocal divergence in two sympatric Laterallus crakes; Springer; Journal of Ornithology; 161; 2; 26-4-2020; 409-420
dc.identifier.issn
0021-8375
dc.identifier.uri
http://hdl.handle.net/11336/120402
dc.description.abstract
Territoriality is a widespread behavioral phenomenon that functions for partitioning space and defending resources. Birds tend to defend territories against homospecific individuals through long-distance acoustic signals, but some species also exhibit interspecific territoriality. Two main hypotheses could explain interspecific territoriality mediated by long-distance acoustic signals: (1) misidentification of heterospecifics as homospecifics (misdirected aggression), or (2) recognition of heterospecifics as threats (purposeful aggression). The sympatric Red-and-white crake (Laterallus leucopyrrhus) and the Rufous-sided crake (L. melanophaius) are reciprocally territorial, but the mechanism underlying this interspecific territoriality is not known. We assessed the similarity of territorial long-distance acoustic signals (duet trills) between these crakes in comparison to more closely related species: Red-and-white vs. Rufous-faced crake (L. xenopterus) and Rufous-sided vs. White-throated crake (L. albigularis). Duet trills are two-parted, beginning with soft initial notes audible at close range and followed by a loud-trilled portion audible at long range. We ran univariate comparisons (Kruskal–Wallis), assessed overlap in multivariate acoustic space (PCA), and calculated vocal similarities (cluster analysis; Euclidean distances). The loud-trilled portions of the interspecifically territorial Red-and-white and Rufous-sided crakes occupied completely non-overlapping acoustic spaces, and were not grouped together by vocal similarity. Their territorial signals were more similar to those of their closest relatives, than between them. Soft initial notes of duet trills were in general very different between species, and their general structure matched the phylogenetic relationships. We found no evidence for strong character convergence and partial phylogenetic conservatism in signal explained overall similarities in vocalizations among species. The highly divergent vocalizations of Red-and-white and Rufous-sided crakes in conjunction with their interspecific territorial responses suggest that recognition of heterospecifics as threats, and not misidentification of heterospecifics as homospecifics, mediates their vocal responses. Our study adds evidence showing that interspecific territoriality represents purposeful heterospecific aggression and is not the product of misdirected homospecific aggression.
dc.format
application/pdf
dc.language.iso
eng
dc.publisher
Springer

dc.rights
info:eu-repo/semantics/restrictedAccess
dc.rights.uri
https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
dc.subject
ACOUSTIC SIGNAL
dc.subject
COMPETITION
dc.subject
CRAKES
dc.subject
INTERSPECIFIC INTERACTIONS
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INTERSPECIFIC TERRITORIALITY
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PLAYBACK
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RALLIDAE
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SIGNAL PERCEPTION
dc.subject.classification
Zoología, Ornitología, Entomología, Etología

dc.subject.classification
Ciencias Biológicas

dc.subject.classification
CIENCIAS NATURALES Y EXACTAS

dc.title
Interspecific territoriality despite vocal divergence in two sympatric Laterallus crakes
dc.type
info:eu-repo/semantics/article
dc.type
info:ar-repo/semantics/artículo
dc.type
info:eu-repo/semantics/publishedVersion
dc.date.updated
2020-11-20T17:30:43Z
dc.identifier.eissn
1439-0361
dc.journal.volume
161
dc.journal.number
2
dc.journal.pagination
409-420
dc.journal.pais
Suiza

dc.journal.ciudad
Cham
dc.description.fil
Fil: Depino, Emiliano Agustín. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Salta. Instituto de Bio y Geociencias del Noroeste Argentino. Universidad Nacional de Salta. Facultad de Ciencias Naturales. Instituto de Bio y Geociencias del Noroeste Argentino; Argentina
dc.description.fil
Fil: Areta, Juan Ignacio. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Salta. Instituto de Bio y Geociencias del Noroeste Argentino. Universidad Nacional de Salta. Facultad de Ciencias Naturales. Instituto de Bio y Geociencias del Noroeste Argentino; Argentina
dc.journal.title
Journal of Ornithology
dc.relation.alternativeid
info:eu-repo/semantics/altIdentifier/doi/https://doi.org/10.1007/s10336-019-01735-x
dc.relation.alternativeid
info:eu-repo/semantics/altIdentifier/url/https://link.springer.com/article/10.1007%2Fs10336-019-01735-x
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