Population genetic and behavioural variation of the two remaining colonies of Providence petrel (Pterodroma solandri)

Lombal, Anicee J.; Wenner, Theodore J.; Carlile, Nicholas; Austin, Jeremy J.; Woehler, Eric J.; Priddel, David; Burridge, Christopher P.

doi:10.1007/s10592-016-0887-5

Cited by 5 publications

(3 citation statements)

References 89 publications

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“…In the absence of genetic divergence, the question remains whether the observed morphological variation in the species is a result of plasticity or selective processes driving local adaptation. High behavioural plasticity has been observed in other Procellariiforms, for example, Gould's petrels and Providence petrels ( Pterodroma solandri ) populations are genetically similar despite ecological distinctiveness (Iglesias‐Vasquez et al., ; Lombal et al., ).…”

Section: Discussionmentioning

confidence: 99%

High vagility facilitates population persistence and expansion prior to the Last Glacial Maximum in an antarctic top predator: The Snow petrel (Pagodroma nivea)

Carrea

Burridge

Wienecke

et al. 2019

Journal of Biogeography

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Aims: Pleistocene glacial cycles have had profound effects on the distribution and genetic diversity of high latitude species, which can vary with species-specific traits, such as vagility. Demographic responses of antarctic flying seabirds to the same events remain unassessed. We addressed this knowledge gap by studying the genetic population connectivity and demographic history of a flying seabird endemic to Antarctica, the Snow petrel. We hypothesize that their high vagility due to flight may represent an advantage over non-flying seabirds in enduring past climate variation.Location: Approximately 3,000 km of coastline in East Antarctica, covering three areas in Mac. Robertson Land, Princess Elizabeth Land and Wilkes Land. An inland location was also sampled at the Prince Charles Mountains, Mac. Robertson Land.Taxon: Snow petrel (Pagodroma nivea). Methods:We sampled 93 individuals and sequenced a total of 5,412 base pairs, including two mitochondrial genes, four anonymous nuclear loci and a nuclear intron. We used frequentist and Bayesian approaches to examine population genetic structuring and an Extended Bayesian Skyline Plot method to infer the demographic history of the species in the study area. In addition, evidence of exposed bedrock during glacial periods was summarized in maps of the studied area representing potential refugia for the species.Results: Differentiation indexes, genetic clustering and haplotype networks suggest long-term population connectivity for Snow petrels across the study area, with no evidence for reliction into refugia that were genetically isolated. Significantly, population expansions pre-dated the Last Glacial Maximum (LGM), but only where there was evidence of ice-free areas during this period. Main conclusions:The high vagility of Snow petrels may have been advantageous for access to foraging areas and supported large populations despite the harsh conditions during the LGM. Our results highlight that species-specific traits can exert a strong influence on demographic responses to the same environmental events.

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Section: Discussionmentioning

confidence: 99%

High vagility facilitates population persistence and expansion prior to the Last Glacial Maximum in an antarctic top predator: The Snow petrel (Pagodroma nivea)

Carrea

Burridge

Wienecke

et al. 2019

Journal of Biogeography

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“…through mate choice) or a consequence of genetic isolation. In seabirds morphological and phenological differences are not always accompanied by genetic structure (Liebers & Helbig, ; Wiley et al ., ; Lombal et al ., ), especially at high latitudes (Moum & Arnason, ). For example, in the lesser black‐backed gull, the divergence between Larus fuscus heuglini and L. f. fuscus is reflected in behavioural and ecological segregation, but reciprocal monophyly is lacking for mtDNA (Liebers & Helbig, ).…”

Section: Seabirds As a Model System To Investigate The Determinants Omentioning

confidence: 99%

“…(); 25 , Lombal et al . ( ); 26 , Abbott & Double (2003 b ); 27 , Burg & Croxall (); 28 , Burg & Croxall (); 29 , Abbott & Double (2003 b ); 30 , Steeves et al . (); 31 , Levin & Parker (); 32 , Morris‐Pocock 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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Genetic diversity, population structure, and historical demography of a highly vagile and human‐impacted seabird in the Pacific Ocean: The red‐tailed tropicbird, Phaethon rubricauda

Varela

Brokordt

Ismar-Rebitz

et al. 2020

Aquatic Conservation

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1. Many seabird breeding colonies have recovered from heavy anthropogenic disturbance after conservation actions. The widely distributed red-tailed tropicbird, Phaethon rubricauda, was used as a model species to assess potential anthropogenic impacts on the genetic diversity of breeding colonies in the Pacific Ocean. 2. Cytochrome c oxidase subunit I and control region sequences analyses were conducted across the range of the species in the Pacific Ocean. The study sites were at islands without human-related disturbance (non-impacted islands) and with human-related disturbance (impacted islands). We hypothesized that (i) breeding colonies of the red-tailed tropicbird on impacted islands have lower genetic diversity compared with colonies on non-impacted islands, and (ii) breeding colonies of the red-tailed tropicbird show significant fine and broad-scale genetic structure across the Pacific Ocean. Bayesian skyline analyses were conducted to infer past changes in population sizes. 3. Genetic diversity was similar between impacted and non-impacted islands. There was significant broad-scale genetic structure among colonies separated by over 6,000 km, but a lack of significant fine-scale genetic structure within Australasia and Hawai'i, although a significant level of differentiation was found within Chile with Φ ST analyses. Skyline analyses showed that effective population sizes

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Population genetic and behavioural variation of the two remaining colonies of Providence petrel (Pterodroma solandri)

Cited by 5 publications

References 89 publications

High vagility facilitates population persistence and expansion prior to the Last Glacial Maximum in an antarctic top predator: The Snow petrel (Pagodroma nivea)

High vagility facilitates population persistence and expansion prior to the Last Glacial Maximum in an antarctic top predator: The Snow petrel (Pagodroma nivea)

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

Genetic diversity, population structure, and historical demography of a highly vagile and human‐impacted seabird in the Pacific Ocean: The red‐tailed tropicbird, Phaethon rubricauda

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