Spotted antbirds in Panama (data from Touchton and Wikelski 2015)

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Date
2015-03-13
DOI
https://doi.org/10.5441/001/1.f7j8vt43/1
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Citation
Touchton JM. 2015. Spotted antbirds in Panama (data from Touchton and Wikelski 2015). Movebank Data Repository. https://doi.org/10.5441/001/1.f7j8vt43/1
Abstract
1. Loss of a dominant competitor can open ecological opportunities. Ecological opportunities are considered prerequisites for adaptive radiations. Nonetheless, initiation of diversification in response to ecological opportunity is seldom observed, so we know little about the stages by which behavioural variation either increases or coalesces into distinct phenotypes. 2. Here, a natural experiment showed that in a tropical island’s guild of army-ant following birds, a new behavioural phenotype emerged in subordinate spotted antbirds (Hylophylax naevioides) after the socially dominant ocellated antbird (Phaenostictus mcleannani) died out. 3. Individuals with this behavioural phenotype are less territorial; instead, they roam in search of ant swarms where they feed in locations from which dominant competitors formerly excluded them. Roaming individuals fledge more young than territorial individuals. 4. We conclude that ecological opportunity arising from species loss may enhance the success of alternative behavioural phenotypes and can favour further intraspecific diversification in life-history traits in surviving species.
Keywords
Alternative behavioural phenotypes,ant-following birds,behavioural diversification,competitive release,ecological opportunity,individual differences,Hylophylax naevioides,spotted antbirds,territorial breakdown
Taxa
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URI
https://datarepository.movebank.org/handle/10255/move.409
BibTex
@misc{001/1_f7j8vt43/1,
  title = {Spotted antbirds in Panama (data from Touchton and Wikelski 2015)},
  author = {Touchton, JM},
  year = {2015},
  URL = {http://dx.doi.org/10.5441/001/1.f7j8vt43/1},
  doi = {doi:10.5441/001/1.f7j8vt43/1},
  publisher = {Movebank data repository}
}
RIS
TY  - DATA
ID  - doi:10.5441/001/1.f7j8vt43/1
T1  - Spotted antbirds in Panama (data from Touchton and Wikelski 2015)
AU  - Touchton, Janeene M
Y1  - 2015/03/13
KW  - Alternative behavioural phenotypes
KW  - ant-following birds
KW  - behavioural diversification
KW  - competitive release
KW  - ecological opportunity
KW  - individual differences
KW  - Hylophylax naevioides
KW  - spotted antbirds
KW  - territorial breakdown
KW  - Hylophylax naevioides
PB  - Movebank data repository
UR  - http://dx.doi.org/10.5441/001/1.f7j8vt43/1
DO  - doi:10.5441/001/1.f7j8vt43/1
ER  -
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