Section: Evolutionary Biology
Topic: Evolution, Genetics/Genomics, Population biology
Distribution of iridescent colours in hummingbird communities results from the interplay between selection for camouflage and communication
10.24072/pcjournal.7 - Peer Community Journal, Volume 1 (2021), article no. e64.
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Identification errors between closely related, co-occurring, species may lead to misdirected social interactions such as costly interbreeding or misdirected aggression. This selects for divergence in traits involved in species identification among co-occurring species, resulting from character displacement. On the other hand, predation may select for crypsis, potentially leading co-occurring species that share the same environment and predators to have a similar appearance. However, few studies have explored how these antagonistic processes influence colour at the community level. Here, we assess colour clustering and overdispersion in 189 hummingbird communities, tallying 112 species, across Ecuador and suggest possible evolutionary mechanisms at stake by controlling for species phylogenetic relatedness. In hummingbirds, most colours are iridescent structural colours, defined as colours that change with the illumination or observation angle. Because small variations in the underlying structures can have dramatic effects on the resulting colours and because iridescent structures can produce virtually any hue and brightness, we expect iridescent colours to respond finely to selective pressures. Moreover, we predict that hue angular dependence a specific aspect of iridescent colours may be used as an additional channel for species recognition. In our hummingbird assemblages in Ecuador, we find support for colour overdispersion in ventral and facial patches at the community level even after controlling for the phylogeny, especially on iridescence-related traits, suggesting character displacement among co-occurring species. We also find colour clustering at the community level on dorsal patches, suspected to be involved in camouflage, suggesting that the same cryptic colours are selected among co-occurring species.
Type: Research article
CC-BY 4.0
@article{10_24072_pcjournal_7,
author = {Gruson, Hugo and Elias, Marianne and Parra, Juan L. and Andraud, Christine and Berthier, Serge and Doutrelant, Claire and Gomez, Doris},
title = {Distribution of iridescent colours in hummingbird communities results from the interplay between selection for camouflage and communication},
journal = {Peer Community Journal},
eid = {e64},
publisher = {Peer Community In},
volume = {1},
year = {2021},
doi = {10.24072/pcjournal.7},
url = {https://peercommunityjournal.org/articles/10.24072/pcjournal.7/}
}
TY - JOUR AU - Gruson, Hugo AU - Elias, Marianne AU - Parra, Juan L. AU - Andraud, Christine AU - Berthier, Serge AU - Doutrelant, Claire AU - Gomez, Doris TI - Distribution of iridescent colours in hummingbird communities results from the interplay between selection for camouflage and communication JO - Peer Community Journal PY - 2021 VL - 1 PB - Peer Community In UR - https://peercommunityjournal.org/articles/10.24072/pcjournal.7/ DO - 10.24072/pcjournal.7 ID - 10_24072_pcjournal_7 ER -
%0 Journal Article %A Gruson, Hugo %A Elias, Marianne %A Parra, Juan L. %A Andraud, Christine %A Berthier, Serge %A Doutrelant, Claire %A Gomez, Doris %T Distribution of iridescent colours in hummingbird communities results from the interplay between selection for camouflage and communication %J Peer Community Journal %D 2021 %V 1 %I Peer Community In %U https://peercommunityjournal.org/articles/10.24072/pcjournal.7/ %R 10.24072/pcjournal.7 %F 10_24072_pcjournal_7
Gruson, Hugo; Elias, Marianne; Parra, Juan L.; Andraud, Christine; Berthier, Serge; Doutrelant, Claire; Gomez, Doris. Distribution of iridescent colours in hummingbird communities results from the interplay between selection for camouflage and communication. Peer Community Journal, Volume 1 (2021), article no. e64. doi : 10.24072/pcjournal.7. https://peercommunityjournal.org/articles/10.24072/pcjournal.7/
Peer reviewed and recommended by PCI : 10.24072/pci.evolbiol.100086
Conflict of interest of the recommender and peer reviewers:
The recommender in charge of the evaluation of the article and the reviewers declared that they have no conflict of interest (as defined in the code of conduct of PCI) with the authors or with the content of the article.
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