A genetic screen of the island races of Wren<i>Troglodytes troglodytes</i>in the North-east Atlantic

Shannon, Thomas J.; McGowan, R Y; Zonfrillo, Bernard; Piertney, Stuart B.; Collinson, J. Martin

doi:10.1080/00063657.2014.894493

Cited by 9 publications

(21 citation statements)

References 10 publications

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“…The purpose of our study is to investigate further the genetic differentiation of T. t. islandicus from the Eurasian wren subspecies in northwestern Europe, and to assess whether its taxonomic status is supported by reciprocal monophyly, which has been proposed as a criteria for subspecies status (Zink ). The present study extends the work of Drovetski et al () and Shannon et al () by examining the genetic relationships within the European clade of Troglodytes troglodytes , based on eight nuclear intron markers and one mitochondrial locus, including four subspecies; T. t. islandicus from Iceland, T. t. borealis from the Faroe Islands, T. t. indigenus from the Scottish Highlands and T. t. troglodytes from southern Norway, Sweden and Denmark.…”

supporting

confidence: 64%

“…Our data support that T. t. indigenus is the smallest Eurasian wren from northwestern Europe as suggested in Sweeney and Tatner () (data not shown). According to Shannon et al (), St Kilda (for T. t. hirtensis ) and Iceland (for T. t. islandicus ) are not on the usual migration route of Scandinavian birds, further isolating these island populations from other populations from northwestern Europe. The large size of the island Eurasian wrens ( T. t. islandicus, T. t. borealis and T. t. hirtensis ) is in accordance to Covas () conclusions, that due to simpler environments on islands than on mainlands, birds might increase their investment in the offspring and generally in larger individuals.…”

Section: Discussionmentioning

confidence: 99%

“…A larger Φ ST than F ST suggests a phylogeographic signal; that distinct alleles were generally more related within populations than among populations. Going one step further, Shannon et al () argued that the Icelandic Eurasian wren could fulfil the species criteria under the evolutionary species concept (ESC, Helbig et al ), considering its differentiation in morphology and song, and being genetically diverged, though their genetic evidence was based on limited data. Despite the large genetic differentiation of T. t. islandicus from the other subspecies, our analysis does not support such a split, none of the markers examined had fixed differences or were monophyletic.…”

Section: Discussionmentioning

confidence: 99%

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Genetic divergence of Troglodytes troglodytes islandicus from other subspecies of Eurasian wren in northwestern Europe

Amouret

Barisas

Hallgrímsson

et al. 2015

Journal of Avian Biology

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The Icelandic subspecies of Eurasian wren Troglodytes troglodytes islandicus has been described as a large wren which is sedentary on the island. It is one member of a large passerine complex which is widely distributed over the Holarctic except the Arctic. The taxonomic affiliation of the subspecies is mainly based on variation in plumage and on the song complexity. This study investigated the genetic differentiation of T. t. islandicus among the Eurasian wren subspecies in northwestern Europe, and especially in relation to its geographically proximate populations in the Faroe Islands, Scotland, southern Norway, Sweden and Denmark. Troglodytes t. islandicus and the Faroese subspecies (T. t. borealis) were genetically differentiated from the other subspecies (T. t. indigenus and T. t. troglodytes) with an estimated time of divergence from this group during the last glacial maximum; 21 thousand years before present (KYBP) [44–8]. A clear but a more recent split was observed between T. t. islandicus and T. t. borealis 12 KYBP [28–4].

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supporting

confidence: 64%

Section: Discussionmentioning

confidence: 99%

Section: Discussionmentioning

confidence: 99%

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Genetic divergence of Troglodytes troglodytes islandicus from other subspecies of Eurasian wren in northwestern Europe

Amouret

Barisas

Hallgrímsson

et al. 2015

Journal of Avian Biology

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“…, Shannon et al . ). Vocally, South Georgia Pipit is close to Correndera Pipit, but distinct (unlike grayi ).…”

Section: Discussionmentioning

confidence: 97%

A revision of species limits in Neotropical pipits Anthus based on multilocus genetic and vocal data

van

Norambuena

2017

Ibis

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Previous investigations of the systematics of Neotropical pipits Anthus revealed multiple cases of paraphyly. We revised the species limits of this group based on sequence data of mitochondrial (ND2) and nuclear genes (ACOI9, MB, FGB5) from 39 tissue samples of all 22 subspecies‐level taxa in the New World Anthus clade, as well as analysis of display song. We found that Anthus lutescens peruvianus is not part of Yellowish Pipit Anthus lutescens genetically or vocally; thus, we elevate peruvianus to species rank (Peruvian Pipit). Anthus lutescens abariensis Chubb (Bull. Br. Orn. Club., 41, 1921a, 79) should be placed in synonymy with Anthus lutescens parvus (instead of A. l. lutescens), at least until further morphological or vocal data become available. Paramo Pipit Anthus bogotensis is likewise paraphyletic, with Anthus meridae sister to all other bogotensis subspecies and also to Hellmayr's Pipit Anthus hellmayri. However, placement of the taxon is based on a relatively short stretch of mitochondrial DNA, and further data are needed. Andean populations of Short‐billed Pipit Anthus furcatus are split as Puna Pipit Anthus brevirostris, based on genetic and vocal data. South Georgia Pipit Anthus antarcticus is, at least genetically, part of Correndera Pipit Anthus correndera, and we recommend considering it a subspecies of Correndera Pipit, in line with the taxonomy of other morphologically distinct but genetically little‐differentiated insular bird taxa.

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“…To isolate full-length fragments for genes encoding cytochrome b (cytb), cytochrome oxidase subunit 1 (COI) and NADH:ubiquinone oxidoreductase core subunit 2 (ND2) from DNA from blood samples, the universal bird PCR primers L14993/H16065, BirdF1/BirdR1 and L5216/ H6313, respectively (Helbig et al 1995;Hebert et al 2004;Shannon et al 2014), were employed using Bio-X-Act Short DNA polymerase (Bioline, UK) with PCR reactions and conditions as described previously (Helbig et al 1995;Hebert et al 2004;Shannon et al 2014;Dejtaradol et al 2016 ). Although the Liberian Greenbul specimen was only 33 years old, none of the above primers produced bands from that sample, consistent with significant DNA degradation.…”

Section: Pcr and Sequencingmentioning

confidence: 99%

Taxonomic status of the Liberian Greenbul Phyllastrephus leucolepis and the conservation importance of the Cavalla Forest, Liberia

et al. 2017

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The Liberian Greenbul Phyllastrephus leucolepis is known only from the Cavalla Forest, Liberia, where it was seen between 1981 and 1984 but has not been found since the collection of the type, and only, specimen. It is similar to the common and widespread Icterine Greenbul P. icterinus, from which it differs primarily in having white subterminal spots on the wing coverts and all flight feathers. Its validity as a distinct species has been questioned but left unresolved. This paper describes the first genetic study of the Liberian Greenbul, to attempt to determine whether it is a distinct species, a plumage variant of Icterine Greenbul, or a hybrid. Total genomic DNA was isolated independently by two separate laboratories from the type specimen, as well as from Icterine and Whitethroated Greenbuls P. albigularis sampled close to the type locality in Liberia. Mitochondrial and nuclear DNA was sequenced and compared to that of Icterine and other greenbul species from Liberia and elsewhere. Sequence analysis of three mitochondrial genes and one nuclear gene showed that the Liberian Greenbul is not a hybrid but falls within the range of intraspecific genetic variation observed in the Icterine Greenbul. Reasons for this are discussed, but the most likely explanation is that the Liberian Greenbul represents a plumage variant of the Icterine Greenbul. The alternative possibilities that the Liberian Greenbul represents a distinct species which only recently diverged or has ongoing gene flow with the Icterine Greenbul cannot be formally refuted. Conservation implications for the Cavalla Forest are discussed.

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A genetic screen of the island races of WrenTroglodytes troglodytesin the North-east Atlantic

Cited by 9 publications

References 10 publications

Genetic divergence of Troglodytes troglodytes islandicus from other subspecies of Eurasian wren in northwestern Europe

Genetic divergence of Troglodytes troglodytes islandicus from other subspecies of Eurasian wren in northwestern Europe

A revision of species limits in Neotropical pipits Anthus based on multilocus genetic and vocal data

Taxonomic status of the Liberian Greenbul Phyllastrephus leucolepis and the conservation importance of the Cavalla Forest, Liberia

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