Intraspecific Variation in the Wing Shape and Genetic Differentiation of Reed Warblers<i>Acrocephalus scirpaceus</i>in Croatia

Kralj, Jelena; Procházka, Petr; Fainová, Drahomíra; Patzenhauerová, Hana; Tutiš, Vesna

doi:10.3161/000164510x516083

Cited by 14 publications

(15 citation statements)

References 52 publications

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“…Our results indicate low genetic diff erentiation and high gene fl ow between the sampling sites, suggesting high dispersal capability for the reed warblers. Low diff erentiation of the reed warbler populations has been observed also previously in Europe (Kralj et al 2010, Proch á zka et al 2011). However, the weak but signifi cant diff erentiation among some of the sampling sites in microsatellite data indicates that gene fl ow can be partly restricted.…”

Section: Reed Warblersupporting

confidence: 76%

Does fragmentation of wetlands affect gene flow in sympatric Acrocephalus warblers with different migration strategies?

Ceresa

Belda

Kvist

et al. 2015

Journal of Avian Biology

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Wetlands are naturally patchy habitats, but patchiness has been accentuated by the extensive wetlands loss due to human activities. In such a fragmented habitat, dispersal ability is especially important to maintain gene flow between populations. Here we studied population structure, genetic diversity and demographic history of Iberian and North African populations of two wetland passerines, the Eurasian reed warbler Acrocephalus scirpaceus and the moustached warbler Acrocephalus melanopogon. These species are closely related and sympatric in our study sites, but the reed warbler is a long-distance migrant and widespread bird while the moustached warbler is resident or migrates over short distances, and breeds across a more discontinuous range. Using microsatellites and mtDNA data, we found higher population differentiation in moustached than in reed warbler, indicating higher dispersal capability of the latter species. Our results also suggest that the sea limits dispersal in the moustached warbler. For both species, we found evidence of gene flow between study sites, indicating the capability of compensating for habitat fragmentation.However, in most cases gene flow was restricted, possibly because of the large distances between study sites (from c. 290 to 960 km) or breeding site fidelity. Haplotype diversity was higher for the reed warbler, possibly because of a more important contribution of dispersal from different populations and the higher population size. Studying demographic history, we obtained signs of postglacial population growth for both species, and evidences of a recent colonization or recolonization of the Mallorca Island by the moustached warbler.2

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Section: Reed Warblersupporting

confidence: 76%

Does fragmentation of wetlands affect gene flow in sympatric Acrocephalus warblers with different migration strategies?

Ceresa

Belda

Kvist

et al. 2015

Journal of Avian Biology

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“…In a general approach across several taxa, Leisler & Winkler [11] established the generalisation that migrants have relatively longer and more pointed wings and also higher aspect ratios. This pattern has been repeatedly confirmed at the intraspecific level [13] , [19] – [26] . Among different populations of blackcaps, Sylvia atricapilla , Fiedler [13] found with increasing migratory distance: (1) an increase in wing length, aspect ratio and wing pointedness; (2) a decrease in wing-load; (3) relatively shorter slots on the wing-tip; (4) a shorter alula in relation to wing length; and (5) a shorter tail in relation to wing length.…”

Section: Introductionsupporting

confidence: 56%

Morphological Shifts of the External Flight Apparatus across the Range of a Passerine (Northern Wheatear) with Diverging Migratory Behaviour

Förschler

Bairlein

2011

PLoS ONE

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We studied morphological differentiation in the flight apparatus of the four currently recognised sub-species of Northern Wheatears, Oenanthe oenanthe. Considering all measured birds without assigning them a priori to any sub-species we found a clinal morphological shift. Relative wing length, wing pointedness, and the degree of tail forking were positively correlated with migratory distance, whereas tail length (relative to wing length) was negatively correlated. The large-sized, long-distance migrant “Greenland” Wheatear, O. o. leucorhoa, is characterized by relatively longer, broader and more pointed wings and more forked tails, similar to the smaller-sized nominate Northern Wheatear, O. o. oenanthe, from North Europe, Siberia and Russia. In contrast, the short distance migrant “Seebohm's” Wheatear, O. o. seebohmi, from northwest Africa, possesses much rounder wings, and the tail is relatively longer and less forked. Sub-species with intermediate migratory habits (different populations of nominate Northern Wheatear, O. o. oenanthe, and “Mediterranean” Northern Wheatear, O. o. libanotica) show, as expected, intermediate features according to their intermediate migratory behaviour. Our results are congruent with other inter- and intraspecific studies finding similar adaptations for energy-effective flight in relation to migration distance (morphological migratory syndrome).

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“…In the non‐breeding season, A. scirpaceus winters in sub‐Saharan Africa (Cramp , Kralj et al . ). Israel is a stopover site and all subspecies are common transients, passing through during spring and autumn migration (Merom et al .…”

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confidence: 97%

Mitochondrial phylogeography of the Eurasian Reed Warbler Acrocephalus scirpaceus and the first genetic record of A. s. fuscus in Central Europe

Arbabi

González

Witt³

et al. 2014

Ibis

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The phylogeography and evolutionary history of the long‐distance migratory Eurasian Reed Warbler Acrocephalus scirpaceus were analysed using sequence data from the mitochondrial DNA COI gene of 405 individuals and cyt b sequences from a subset of those individuals from 20 breeding, migrating and wintering populations over its wide geographical range. Median‐joining network and Bayesian phylogenetic analyses recovered three lineages corresponding to three subspecies of A. scirpaceus that started to diverge approximately 480 000 years ago: one spanning Asia (Acrocephalus scirpaceus fuscus), one encompassing Europe and Northern Africa (Acrocephalus scirpaceus scirpaceus) and a third that included Eastern Africa and Southwestern Asia (Acrocephalus scirpaceus avicenniae). Phylogenetic analyses suggest that the third clade is basal and diverged from its sister species, the African Reed Warbler Acrocephalus baeticatus, around 700 000 years ago. This earliest subspecies (avicenniae) may have survived the Last Glacial Maximum in one of the African refugia, probably the low forest refugium of the Ethiopian Highlands. Sequences of 348 samples from Germany, which were captured for ringing, showed that one bird was genetically assigned to the subspecies fuscus, the first genetic evidence of this Asian subspecies in Central Europe. According to our DNA sequences, 6.8% of Eurasian Reed Warblers were misidentified at the species level, Marsh Warbler Acrocephalus palustris accounting for most of these misidentified specimens. At the subspecies level, of 22 fuscus identified by genetic analyses, only six had been correctly named by the ringers.

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Intraspecific Variation in the Wing Shape and Genetic Differentiation of Reed WarblersAcrocephalus scirpaceusin Croatia

Cited by 14 publications

References 52 publications

Does fragmentation of wetlands affect gene flow in sympatric Acrocephalus warblers with different migration strategies?

Does fragmentation of wetlands affect gene flow in sympatric Acrocephalus warblers with different migration strategies?

Morphological Shifts of the External Flight Apparatus across the Range of a Passerine (Northern Wheatear) with Diverging Migratory Behaviour

Mitochondrial phylogeography of the Eurasian Reed Warbler Acrocephalus scirpaceus and the first genetic record of A. s. fuscus in Central Europe

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