Spatial memory is as important as weapon and body size for territorial ownership in a lekking hummingbird

Abstract Advanced cognitive abilities have long been hypothesized to be important in mating. Yet, most work on sexual selection has focused on morphological traits and its relevance for cognitive evolution is poorly understood. We studied the spatial memory of lekking long-billed hermits (Phaethorni...

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Autores principales:	Marcelo Araya-Salas, Paulina Gonzalez-Gomez, Katarzyna Wojczulanis-Jakubas, Virgilio López, Timothy F. Wright
Formato:	article
Lenguaje:	EN
Publicado:	Nature Portfolio 2018
Materias:	Medicine R Science Q
Acceso en línea:	https://doaj.org/article/6fc590d7913d46e1b8aeb8a4b2e1053e
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id	oai:doaj.org-article:6fc590d7913d46e1b8aeb8a4b2e1053e
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spelling	oai:doaj.org-article:6fc590d7913d46e1b8aeb8a4b2e1053e2021-12-02T15:08:52ZSpatial memory is as important as weapon and body size for territorial ownership in a lekking hummingbird10.1038/s41598-018-20441-x2045-2322https://doaj.org/article/6fc590d7913d46e1b8aeb8a4b2e1053e2018-01-01T00:00:00Zhttps://doi.org/10.1038/s41598-018-20441-xhttps://doaj.org/toc/2045-2322Abstract Advanced cognitive abilities have long been hypothesized to be important in mating. Yet, most work on sexual selection has focused on morphological traits and its relevance for cognitive evolution is poorly understood. We studied the spatial memory of lekking long-billed hermits (Phaethornis longirostris) and evaluated its role in lek territory ownership, the magnitude of its effect compared to phenotypic traits expected to influence sexual selection, and whether its variation is indicated in the structure of mating vocal signal. Spatial memory (the ability to recall the position of a rewarding feeder) was compared between “territorial” and “floater” males. Interestingly, although spatial memory and body size both positively affected the probability of lek territory ownership, our results suggest a stronger effect of spatial memory. Bill tip length (used as weapon in agonistic interactions) also showed a positive but smaller effect. Load lifting during vertical flight, a measure of physical performance relevant to agonistic interactions, had no effect on territory ownership. Finally, both body size and spatial memory were indicated in the structure of male song: body size negatively correlated with song lowest frequency, while spatial memory positively predicted song consistency. Together, our findings lend support for cognition as a sexual selection target.Marcelo Araya-SalasPaulina Gonzalez-GomezKatarzyna Wojczulanis-JakubasVirgilio LópezTimothy F. WrightNature PortfolioarticleMedicineRScienceQENScientific Reports, Vol 8, Iss 1, Pp 1-11 (2018)
institution	DOAJ
collection	DOAJ
language	EN
topic	Medicine R Science Q
spellingShingle	Medicine R Science Q Marcelo Araya-Salas Paulina Gonzalez-Gomez Katarzyna Wojczulanis-Jakubas Virgilio López Timothy F. Wright Spatial memory is as important as weapon and body size for territorial ownership in a lekking hummingbird
description	Abstract Advanced cognitive abilities have long been hypothesized to be important in mating. Yet, most work on sexual selection has focused on morphological traits and its relevance for cognitive evolution is poorly understood. We studied the spatial memory of lekking long-billed hermits (Phaethornis longirostris) and evaluated its role in lek territory ownership, the magnitude of its effect compared to phenotypic traits expected to influence sexual selection, and whether its variation is indicated in the structure of mating vocal signal. Spatial memory (the ability to recall the position of a rewarding feeder) was compared between “territorial” and “floater” males. Interestingly, although spatial memory and body size both positively affected the probability of lek territory ownership, our results suggest a stronger effect of spatial memory. Bill tip length (used as weapon in agonistic interactions) also showed a positive but smaller effect. Load lifting during vertical flight, a measure of physical performance relevant to agonistic interactions, had no effect on territory ownership. Finally, both body size and spatial memory were indicated in the structure of male song: body size negatively correlated with song lowest frequency, while spatial memory positively predicted song consistency. Together, our findings lend support for cognition as a sexual selection target.
format	article
author	Marcelo Araya-Salas Paulina Gonzalez-Gomez Katarzyna Wojczulanis-Jakubas Virgilio López Timothy F. Wright
author_facet	Marcelo Araya-Salas Paulina Gonzalez-Gomez Katarzyna Wojczulanis-Jakubas Virgilio López Timothy F. Wright
author_sort	Marcelo Araya-Salas
title	Spatial memory is as important as weapon and body size for territorial ownership in a lekking hummingbird
title_short	Spatial memory is as important as weapon and body size for territorial ownership in a lekking hummingbird
title_full	Spatial memory is as important as weapon and body size for territorial ownership in a lekking hummingbird
title_fullStr	Spatial memory is as important as weapon and body size for territorial ownership in a lekking hummingbird
title_full_unstemmed	Spatial memory is as important as weapon and body size for territorial ownership in a lekking hummingbird
title_sort	spatial memory is as important as weapon and body size for territorial ownership in a lekking hummingbird
publisher	Nature Portfolio
publishDate	2018
url	https://doaj.org/article/6fc590d7913d46e1b8aeb8a4b2e1053e
work_keys_str_mv	AT marceloarayasalas spatialmemoryisasimportantasweaponandbodysizeforterritorialownershipinalekkinghummingbird AT paulinagonzalezgomez spatialmemoryisasimportantasweaponandbodysizeforterritorialownershipinalekkinghummingbird AT katarzynawojczulanisjakubas spatialmemoryisasimportantasweaponandbodysizeforterritorialownershipinalekkinghummingbird AT virgiliolopez spatialmemoryisasimportantasweaponandbodysizeforterritorialownershipinalekkinghummingbird AT timothyfwright spatialmemoryisasimportantasweaponandbodysizeforterritorialownershipinalekkinghummingbird
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Spatial memory is as important as weapon and body size for territorial ownership in a lekking hummingbird

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