10.5061/DRYAD.Q42P7
Illera, Juan Carlos
Spanish National Research Council
Palmero, Ana M.
Spanish National Research Council
Laiolo, Paola
Centre de Biologie et de Gestion des Populations
Rodríguez, Felipe
Biodiversity Service; Canary Government, Servicios Múltiples II
building; 4th Floor; 35071 Las Palmas de Gran Canaria Canary Islands
Spain
Moreno, Ángel C.
Vice Council of Environment; Environ. Impact Serv; Las Palmas de Gran
Canaria; Canary Islands Spain
Navascués, Miguel
Centre de Biologie et de Gestion des Populations
Data from: Genetic, morphological and acoustic evidence reveals lack of
diversification in the colonization process in an island bird
Dryad
dataset
2014
Sylvia conspicillata
Holocene
2014-04-01T19:45:39Z
2014-04-01T19:45:39Z
en
https://doi.org/10.1111/evo.12429
331003 bytes
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CC0 1.0 Universal (CC0 1.0) Public Domain Dedication
Songbirds with recently (i.e. early Holocene) founded populations are
suitable models for studying incipient differentiation in oceanic islands.
On such systems each colonization event represents a different
evolutionary episode that can be studied by addressing sets of diverging
phenotypic and genetic traits. We investigate the process of early
differentiation in the spectacled warbler (Sylvia conspicillata) in 14
populations separated by sea barriers from three Atlantic archipelagos and
from continental regions spanning from tropical to temperate latitudes.
Our approach involved the study of sexual acoustic signals, morphology and
genetic data. Mitochondrial DNA did not provide clear population
structure. However, microsatellites analyses consistently identified two
genetic groups, albeit without correspondence to subspecies classification
and little correspondence to geography. Coalescent analyses showed
significant evidence for gene flow between the two genetic groups.
Discriminant analyses could not correctly assign morphological or acoustic
traits to source populations. Therefore, although theory predicting that
in isolated populations genetic, morphological or acoustic traits can lead
to radiation, we have strikingly failed to document differentiation on
these attributes in a resident passerine throughout three oceanic
archipelagos.
Microsatellite_Sylvia conspicillataMicrosatellite genotypes for
individuals analysed in 15 loci and per population. Names of populations
as in the manuscript.Acoustic traits_Sylvia
conspicillata_standardizedStandardized acoustic traits for Sylvia
conspicillata (2010-2011). Abbreviations as in the
manuscript.Morphological traits_Sylvia conspicillataMorphometric traits
for all Sylvia conspicillata males (2010-2011). Abbreviations as in the
manuscript.
Macaronesia
Morocco
Spain