Speciation and phylogeography of giant petrels Macronectes

Techow, N.M.S. Mareile; O’Ryan, Colleen; Phillips, Richard A.; Gales, Rosemary; Marín, Manuel; Patterson‐Fraser, Donna L.; Quintana, Flavio; Ritz, Markus S.; Thompson, David R.; Wanless, Ross M.; Weimerskirch, Henri; Ryan, Peter G.

doi:10.1016/j.ympev.2009.09.005

Cited by 37 publications

(27 citation statements)

References 78 publications

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“…pairwise F ST = 0.362 in snowy plover Charadrius alexandrinus across 4,000 km (Funk et al 2007) and pairwise D est = 0.260 in giant petrel (Macronectes spp.) across 7,000 km (Techow et al 2010). Overall, differentiation among red-billed chough populations was therefore notably high and demonstrates strong genetic structure.…”

Section: Genetic Structure and Dispersalmentioning

confidence: 89%

“…Geographic distance rarely explains [20 % of variation in genetic differentiation in bird populations (e.g. Johnson et al 2003;Funk et al 2007;Techow et al 2010). Notable exceptions include 27 % in European shags (Barlow et al 2011) and 38.4 % in orange-crowned warblers Vermivora celata in Canada and Alaska across a large spatial scale of up to 4,000 km (Bull et al 2010).…”

Section: Genetic Structure and Dispersalmentioning

confidence: 99%

“…Nichols et al 2001;Segelbacher et al 2003;Funk et al 2007;Techow et al 2010). Genetic structure and diversity are influenced by both recent and historic processes, so comprehensive characterisation of demographic interactions and evolutionary relationships requires consideration of multiple temporal and spatial scales.…”

Section: Introductionmentioning

confidence: 99%

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Pronounced genetic structure and low genetic diversity in European red-billed chough (Pyrrhocorax pyrrhocorax) populations

et al. 2012

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The red-billed chough (Pyrrhocorax pyrrhocorax) is of conservation concern in the British Isles and continental Europe, with historically declining populations and a highly fragmented distribution. We quantified the distribution of genetic variation within and among European populations to identify isolated populations that may need to be managed as demographically independent units, and assess whether individual populations are denuded of genetic diversity and so may show reduced viability. We genotyped 326 choughs from ten wild populations and 22 from one captive population at 16 nuclear microsatellite loci, and sequenced 34 individuals across three mitochondrial regions to quantify genetic structure, diversity and phylogeography. Microsatellite diversity was low (often \4 alleles per locus), but pairwise population differentiation was high (often D est [ 0.1), with a signature of isolationby-distance. Bayesian-inferred a posteriori genetic clusters coincided with a priori populations, supporting strong genetic structure. Microsatellites also allowed us to identify the probable origin of the captive choughs and one recently founded wild population. Mitochondrial DNA sequence diversity was low (p = 0.00103). Phylogeographic structure was consequently poorly resolved, but indicated that sampled continentalEuropean populations are ancestral to British Isles populations, which comprised a single clade. Our data suggest that British Isles chough populations are relatively isolated with infrequent gene flow and relatively genetically depauperate, potentially requiring genetic management. These findings should be integrated into conservation management policy to ensure longterm viability of chough populations.

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Section: Genetic Structure and Dispersalmentioning

confidence: 89%

Section: Genetic Structure and Dispersalmentioning

confidence: 99%

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Pronounced genetic structure and low genetic diversity in European red-billed chough (Pyrrhocorax pyrrhocorax) populations

et al. 2012

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“…Some authors have suggested that differences between Northern Fulmars from the Atlantic and Pacific are on par with that observed between other Procellariid species (Howell 2012). A notable example is Macronectes giganteus and M. halli, which differ only subtly by primarily qualitative morphological characters and exhibit far less genetic differentiation than the Northern Fulmar populations (Techow et al 2010). Other examples, such as Pterodroma phaeopygia and P. sandwichensis echo the case of Macronectes, but these species breed on separate islands and may not be considered sympatric per se (Welch et al 2011).…”

Section: °1mentioning

confidence: 99%

Delimiting shades of gray: phylogeography of theNorthernFulmar,Fulmarus glacialis

Kerr

Dove

2013

Ecology and Evolution

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The Northern Fulmar (Fulmarus glacialis) is a common tube-nosed seabird with a disjunct Holarctic range. Taxonomic divisions within the Northern Fulmar have historically been muddled by geographical variation notably including highly polymorphic plumage. Recent molecular analyses (i.e., DNA barcoding) have suggested that genetic divergence between Atlantic and Pacific populations could be on par with those typically observed between species. We employ a multigene phylogenetic analysis to better explore the level of genetic divergence between these populations and to test an old hypothesis on the origin of the modern distribution of color morphs across their range. Additionally, we test whether mutations in the melanocortin-1 receptor gene (MC1R) are associated with dark plumage in the Northern Fulmar. We confirmed that mitochondrial lineages in the Atlantic and Pacific populations are highly divergent, but nuclear markers revealed incomplete lineage sorting. Genetic divergence between these populations is consistent with that observed between many species of Procellariiformes and we recommend elevating these two forms to separate species. We also find that MC1R variation is not associated with color morph but rather is better explained by geographical divergence.

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“…(); 10 , Techow et al . (); 11 , Smith & Friesen (); 12 , Bicknell et al . (); 13 , Quillfeldt et al .…”

Section: Approachmentioning

confidence: 99%

Identifying mechanisms of genetic differentiation among populations in vagile species: historical factors dominate genetic differentiation in seabirds

et al. 2020

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Elucidating the factors underlying the origin and maintenance of genetic variation among populations is crucial for our understanding of their ecology and evolution, and also to help identify conservation priorities. While intrinsic movement has been hypothesized as the major determinant of population genetic structuring in abundant vagile species, growing evidence indicates that vagility does not always predict genetic differentiation. However, identifying the determinants of genetic structuring can be challenging, and these are largely unknown for most vagile species. Although, in principle, levels of gene flow can be inferred from neutral allele frequency divergence among populations, underlying assumptions may be unrealistic. Moreover, molecular studies have suggested that contemporary gene flow has often not overridden historical influences on population genetic structure, which indicates potential inadequacies of any interpretations that fail to consider the influence of history in shaping that structure. This exhaustive review of the theoretical and empirical literature investigates the determinants of population genetic differentiation using seabirds as a model system for vagile taxa. Seabirds provide a tractable group within which to identify the determinants of genetic differentiation, given their widespread distribution in marine habitats and an abundance of ecological and genetic studies conducted on this group. Herein we evaluate mitochondrial DNA (mtDNA) variation in 73 seabird species. Lack of mutation-drift equilibrium observed in 19% of species coincided with lower estimates of genetic differentiation, suggesting that dynamic demographic histories can often lead to erroneous interpretations of contemporary gene flow, even in vagile species. Presence of land across the species sampling range, or sampling of breeding colonies representing ice-free Pleistocene refuge zones, appear to be associated with genetic differentiation in Tropical and Southern Temperate species, respectively, indicating that long-term barriers and persistence of populations are important for their genetic structuring. Conversely, biotic factors commonly considered to influence population genetic structure, such as spatial segregation during foraging, were inconsistently associated with population genetic differentiation. In light of these results, we recommend that genetic studies should consider potential historical events when identifying determinants of genetic differentiation among populations to avoid overestimating the role of contemporary factors, even for highly vagile taxa.

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Speciation and phylogeography of giant petrels Macronectes

Cited by 37 publications

References 78 publications

Pronounced genetic structure and low genetic diversity in European red-billed chough (Pyrrhocorax pyrrhocorax) populations

Pronounced genetic structure and low genetic diversity in European red-billed chough (Pyrrhocorax pyrrhocorax) populations

Delimiting shades of gray: phylogeography of theNorthernFulmar,Fulmarus glacialis

Identifying mechanisms of genetic differentiation among populations in vagile species: historical factors dominate genetic differentiation in seabirds

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