Sympatry, syntopy, and species age: disentangling drivers of signal evolution in a large radiation of passerine birds (Meliphagides)

Result code in IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F61989592%3A15310%2F25%3A73634070" target="_blank" >RIV/61989592:15310/25:73634070 - isvavai.cz</a>

Alternative codes found

RIV/00216208:11310/25:10500780

Result on the web

<a href="https://academic.oup.com/biolinnean/article/144/1/blae125/7942155" target="_blank" >https://academic.oup.com/biolinnean/article/144/1/blae125/7942155</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1093/biolinnean/blae125" target="_blank" >10.1093/biolinnean/blae125</a>

Result language

angličtina

Original language name

Sympatry, syntopy, and species age: disentangling drivers of signal evolution in a large radiation of passerine birds (Meliphagides)

Original language description

The evolution of signalling traits is crucial in species diversification, because they can become effective barriers to interspecific hybridization. Among various selection pressures acting on signal evolution, species interactions can reinforce signal divergence via reproductive character displacement, especially during secondary sympatry. Although previous evidence suggests that sympatry promotes signal divergence, methods using large-scale geographical range overlap fail to capture local co-occurrence (syntopy), an essential prerequisite of species interactions. In this study, we used 116 sympatric species pairs of Meliphagides, a large radiation of Australasian passerines, to test simultaneously the effects of node age, range sympatry, and, for the first time, local syntopy on colour and song divergence. Signal divergence increased with node age (although not consistently). However, we did not find conclusive evidence that sympatry was driving signal evolution, probably owing to a necessary exclusion of allopatric pairs from our analyses. Furthermore, we did not demonstrate any significant effect of syntopy on signal evolution. This could suggest that reinforcement of signal divergence in sympatry (and syntopy) is not as common as previously thought, with neutral trait drift potentially being a more dominant driver. Alternatively, constraints on signal evolution might prevent trait divergence.

Czech name

—

Czech description

—

Type

J_imp - Article in a specialist periodical, which is included in the Web of Science database

CEP classification

—

OECD FORD branch

10615 - Ornithology

Project

<a href="/en/project/GA21-26376S" target="_blank" >GA21-26376S: Ecology and evolution of secondary sympatry in birds across spatial scales</a><br>

Continuities

P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)

Publication year

2025

Confidentiality

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Name of the periodical

BIOLOGICAL JOURNAL OF THE LINNEAN SOCIETY

ISSN

0024-4066

e-ISSN

1095-8312

Volume of the periodical

144

Issue of the periodical within the volume

1

Country of publishing house

GB - UNITED KINGDOM

Number of pages

8

Pages from-to

"blae125-1"-"blae125-8"

UT code for WoS article

001388797500001

EID of the result in the Scopus database

2-s2.0-85216119945