Reconciling historical processes and population structure in the sooty tern <i>Sterna fuscata</i>

Peck, Darren R.; Congdon, Bradley C.

doi:10.1111/j.0908-8857.2004.03303.x

Cited by 58 publications

(44 citation statements)

References 62 publications

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“…Contemporary Bass Strait colonies may have been derived from a genetically homogenous source population, and any concomitant increases in population numbers and general abundance would also tend to hinder the development of population genetic structuring (McCauley 1991). While our results cannot reject population expansion associated with other, unknown events falling within the broad confidence intervals reported above, Pleistocene fluctuations in availability of nesting habitat have also been implicated for a lack of genetic differentiation among colonies of short-tailed shearwater (Puffinus tenuirostris) in this region (Austin et al 1994), and among other seabird populations elsewhere (Roeder et al 2001;Peck and Congdon 2004), as has postPleistocene re-colonisation of a wide area from a single, homogeneous source population (Friesen et al 1996;Liebers and Helbig 2002). Consequently, such climatic fluctuations may represent a major contributor to contemporary genetic structuring of near-shore nesting seabirds.…”

Section: Genetic Homogeneity Among Coloniesmentioning

confidence: 50%

Contrasting genetic structuring between colonies of the World’s smallest penguin, Eudyptula minor (Aves: Spheniscidae)

et al. 2007

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The Little Penguin, Eudyptula minor, is a seabird that nests in colonies throughout New Zealand and southern Australia. Individuals from different colonies in southeast Australia differ significantly in morphology and ecology, suggesting that some genetic structuring may exist among colonies. In contrast, the marking of individuals with flipper bands has revealed some, albeit infrequent, movement between colonies. To determine the extent of genetic structuring, we tested the null hypothesis of substantial gene flow within southeast Australia by examining patterns of genetic variation across seven colonies separated by up to 1,500 km. Phylogeographic structuring was absent for mitochondrial control region sequences (2-3 individuals per colony). Microsatellite allele frequencies at five loci and mitochondrial haplotype frequencies (50 individuals per colony) were also homogenous among the majority of colonies sampled, although two colonies at the western periphery of the sampling range were distinct from those to the east. The genetic homogeneity among the majority of colonies can be explained by low but consistent contemporary gene flow among them, or a recent founder event in Bass Strait following the last marine transgression. The genetic break towards the western end of the sampling distribution appears best explained by differences in sea surface temperature and, consequentially breeding phenology, the latter hindering genetically effective migration.

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Section: Genetic Homogeneity Among Coloniesmentioning

confidence: 50%

Contrasting genetic structuring between colonies of the World’s smallest penguin, Eudyptula minor (Aves: Spheniscidae)

et al. 2007

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“…Islands are the easiest sites at which to sample pelagic birds, which are conspicuous by their relative dearth in this review (Table 1; Austin et al 1994;Abbott andDouble 2003a, 2003b;Peck and Congdon 2004). Abbott andDouble (2003a, 2003b) illustrated the value to albatross taxonomy of phylogeographic data obtained by sampling at island breeding colonies.…”

Section: Island Populationsmentioning

confidence: 99%

Phylogeography: its development and impact in Australo-Papuan ornithology with special reference to paraphyly in Australian birds

Joseph

Omland

2009

Emu - Austral Ornithology

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Abstract.With examples from Australo-Papuan ornithology, we examine the technical and theoretical roots of molecular phylogeography and review its development. We describe the progression from ad hoc interpretation of gene trees in single species phylogeographic studies through to comparative phylogeography and currently advocated model-testing approaches. Mitochondrial DNA (mtDNA) sequences have provided most advances to date, although we demonstrate and advocate the future use of multilocus datasets analysed with coalescent methods. We examine interrelationships among speciation research, historical biogeography, phylogeography and landscape genetics. Mitochondrial paraphyly, in which individuals of one species or population have mtDNA that is more closely related to that of another than to their own, emerges in 44% of Australian studies to date as a common, important result in Australian avian phylogeography. Accordingly, we explore at length its most common causes and its impact on case studies in Australo-Papuan avian phylogeography. The impact of so much paraphyly on avian phylogeography and taxonomy is a major theme of the review. We suggest a full research agenda for avian phylogeography in the AustraloPapuan region that spans diverse topics: the need for more studies of pelagic birds, spatio-temporal links between New Guinea and Australia, island populations, testing of long-established biogeographical hypotheses, and integration of molecular and non-molecular datasets into integrated evolutionary understanding of species and populations. Studying the full continuum of divergences from landscape genetics, to phylogeography, to recently diverged species with evidence of paraphyly, to highly divergent species with many fixed differences will lead to a more complete understanding of the processes and patterns of avian evolution.

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“…Demographic history was explored by inferring mismatch distribution analysis, R2 [56], haplotype and nucleotide diversities [57,58] and S/K ratio or expansion coefficient [59] (Fu,[62]), which are sensitive to demographic changes, were ascertained by handling DnaSP. These significance tests of neutrality were estimated based on 1000 coalescent simulations.…”

Section: Demographic History Coalescence Analysis and Time Of Divergmentioning

confidence: 99%

Haplotype Structure and Phylogeographic Evolution of West African Populations of Sitophilus zeamais (Coleoptera, Curculionidae)

Racky¹,

Cheikh²,

Sembène³

2017

J Phylogenetics Evol Biol

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Knowledge of spatial and temporal distribution of genetic variability within and between populations is a crucial step for establishing strategies management of stored crops and commodities to assure food safety. The maize weevil, Sitophilus zeamais, is known because of his extraordinary potential for destruction of stored cereals; but little is known about its phylogeography and population structure in Africa in general. This study aimed to determine phylogenic relationships and Phylogeographic structuring of maize weevil populations in West and Central Africa. After alignments and corrections, a total of 112 and 109 samples were used for analysis of Cytochrome B and Cytochrome oxidase I, respectively. The standard indices of genetic diversity, analyses of hierarchical molecular variance (AMOVA), haplotypic network, phylogenetic relationships, demographic tests and Nested Clade Phylogeographic Analysis (NPCA) were computed. Analysis of sequences revealed, with the concatenated matrix, for example, the presence of 30 haplotypes and a high level of haplotype diversity and low nucleotide diversity were observed in West Africa (h = 0.922 ± 0.023; π = 0.0067 ± 0.00116); but these both parameters were twice lower in Central Africa's populations (h=0.512 ± 0.085; π =0.0034 ± 0.00083). The majority haplotype represented 43% of the overall population and connected West Africa to Central Africa. Maize weevil populations showed a genetic structure but indicated a lack of phylogeographic signal. They also showed that most of molecular variance was due to individual characteristics in a population (~60%); while a proportion of molecular divergence (8-14%) was related to a differentiation between two biogeographical regions in Sub-Saharan Africa. The latters were characterized by the presence of endemic haplotypes as well as common haplotypes. Analysis of mismatch distribution, neutrality tests and Bayesian inferences suggested the existence of 4 to 5 main clusters that had separated themselves from a bottleneck followed by a moderate demographic expansion since Pleistocene period.

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Reconciling historical processes and population structure in the sooty tern Sterna fuscata

Cited by 58 publications

References 62 publications

Contrasting genetic structuring between colonies of the World’s smallest penguin, Eudyptula minor (Aves: Spheniscidae)

Contrasting genetic structuring between colonies of the World’s smallest penguin, Eudyptula minor (Aves: Spheniscidae)

Phylogeography: its development and impact in Australo-Papuan ornithology with special reference to paraphyly in Australian birds

Haplotype Structure and Phylogeographic Evolution of West African Populations of Sitophilus zeamais (Coleoptera, Curculionidae)

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