Conservation genomics reveals low connectivity among populations of threatened roseate terns (Sterna dougallii) in the Atlantic Basin

Byerly, Paige A.; Chesser, R. Terry; Fleischer, Robert C.; McInerney, Nancy Rotzel; Przelomska, Natalia A. S.; Leberg, Paul L.

doi:10.1007/s10592-023-01505-6

Cited by 3 publications

(2 citation statements)

References 94 publications

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“…Different genetic markers can be used to understand genetic structure and historic processes in populations of seabirds (e.g. Obiol et al 2001, Goméz-Díaz and González-Solís 2007, Byerly et al 2023).…”

Section: Introductionmentioning

confidence: 99%

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Absence of genetic structure among ecologically diverse populations indicate high plasticity in a pantropical seabird

Mazzochi,

Muraro,

Fagundes

et al. 2024

Conserv Genet

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Genotype and phenotype in mobile organisms can be de ned by various factors such as environmental, biological and geographical. Brown noddies Anous stolidus are pan-tropical seabirds breeding at different times, with migratory and resident populations in six islands throughout 20° of latitude in the Southwestern Atlantic Ocean. If environmental heterogeneity plays a key role in their population biology, we would expect signi cant genetic structure and/or phenotypic variation among colonies. However, absence of genetic structure between phenotypically different populations could play a scenario of ecological plasticity. To test these hypotheses, we used a model-based integrative approach combining genetic (mtDNA and ultraconserved elements) and morphological data of the brown noddy (n = 122) along with environmental variables and isotopic niches. We uncovered low levels of genetic structure, with 16 haplotypes for mtDNA and a signal of an ancient population expansion. Ultraconserved elements indicated that all colonies belong to the same genetic population (K = 1) and revealed substantial endogamy. However, phenotype differed both by biometric measures and isotopic niches between most pairs of populations. Although individuals from the northernmost colony are larger than the others, they are genetically similar, indicating a wide reaction norm for this species. Our results indicate the Southwestern Atlantic populations of the brown noddy are panmictic, but ecologically and morphologically diverse.

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Section: Introductionmentioning

confidence: 99%

“…Oswald et al 2016, Mason et al 2018). (Byerly et al 2023) but also between temporally isolated individuals breeding at the same location (Garrett et al 2020). Genetic isolation had also been reported between populations of other seabird species breeding at the same colonies of brown noddies at Southwestern Atlantic Ocean .…”

Section: Introductionmentioning

confidence: 99%

Absence of genetic structure among ecologically diverse populations indicate high plasticity in a pantropical seabird

Mazzochi,

Muraro,

Fagundes

et al. 2024

Conserv Genet

View full text Add to dashboard Cite

show abstract

Variable Connectivity among Black Skimmer (Rynchops niger) Populations in North and South America: A Population Genetics Investigation

Goodenough,

Finch,

Newstead

et al. 2024

Waterbirds

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Absence of genetic structure among ecologically diverse populations indicate high plasticity in a pantropical seabird

Mazzochi,

Muraro,

Fagundes

et al. 2023

Preprint

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Genotype and phenotype in mobile organisms can be defined by various factors such as environmental, biological and geographical. Brown noddies Anous stolidus are pan-tropical seabirds breeding at different times, with migratory and resident populations in six islands throughout 20° of latitude in the Southwestern Atlantic Ocean. If environmental heterogeneity plays a key role in their population biology, we would expect significant genetic structure and/or phenotypic variation among colonies. However, absence of genetic structure between phenotypically different populations could play a scenario of ecological plasticity. To test these hypotheses, we used a model-based integrative approach combining genetic (mtDNA and ultraconserved elements) and morphological data of the brown noddy (n = 122) along with environmental variables and isotopic niches. We uncovered low levels of genetic structure, with 16 haplotypes for mtDNA and a signal of an ancient population expansion. Ultraconserved elements indicated that all colonies belong to the same genetic population (K = 1) and revealed substantial endogamy. However, phenotype differed both by biometric measures and isotopic niches between most pairs of populations. Although individuals from the northernmost colony are larger than the others, they are genetically similar, indicating a wide reaction norm for this species. Our results indicate the Southwestern Atlantic populations of the brown noddy are panmictic, but ecologically and morphologically diverse.

show abstract

Conservation genomics reveals low connectivity among populations of threatened roseate terns (Sterna dougallii) in the Atlantic Basin

Cited by 3 publications

References 94 publications

Absence of genetic structure among ecologically diverse populations indicate high plasticity in a pantropical seabird

Absence of genetic structure among ecologically diverse populations indicate high plasticity in a pantropical seabird

Variable Connectivity among Black Skimmer (Rynchops niger) Populations in North and South America: A Population Genetics Investigation

Absence of genetic structure among ecologically diverse populations indicate high plasticity in a pantropical seabird

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