Panmixia and high genetic diversity in a Humboldt Current endemic, the Peruvian Booby (Sula variegata)

Scott A. Taylor, Carlos B. Zavalaga, Guillermo Luna-Jorquera, Alejandro Simeone, David J. Anderson, Vicki L. Friesen

Resultado de la investigación: Article

9 Citas (Scopus)

Resumen

Marine ecosystems and their inhabitants are increasingly under threat from climate change, competition with humans for resources, and pollution. Species that are endemic to particular currents or regions of the world's oceans have the potential to be at higher risk due to localized overfishing, pollution, or locally severe impacts of climate change such as more intense, or longer, El Niño Southern Oscillation events. Understanding patterns of population differentiation in endemic marine organisms may be particularly important for their conservation and persistence. Peruvian Boobies (Sula variegata) are endemic to the Humboldt Current upwelling system and have experienced population fluctuations throughout their evolutionary history due to both dramatic reduction of food supplies, and anthropogenic influence over the last ~150 years. Recent research on other members of the Sulidae indicates that populations of these primarily tropical seabirds show a high degree of genetic differentiation; however, the sister species of the Peruvian Booby, the Blue-footed Booby (S. nebouxii), exhibits only weak range-wide population genetic structure. We characterized population genetic differentiation and diversity in 153 Peruvian Boobies using sequence variation of 540 base pairs of the mitochondrial control region and seven microsatellite loci. Although we found evidence of panmixia, a signature of isolation by distance appears to exist between the five sampled colonies. We also found unexpectedly high genetic diversity given this species' recent population decline. Our results are similar to those for the Humboldt Penguin (Spheniscus humboldti), another endemic of the Humboldt Current upwelling system.

Idioma originalEnglish
Páginas (desde-hasta)623-630
Número de páginas8
PublicaciónJournal of Ornithology
Volumen152
N.º3
DOI
EstadoPublished - 1 jul 2011

Huella dactilar

genetic variation
population genetics
pollution
climate change
Spheniscus
overfishing
penguins
seabirds
human resources
anthropogenic activities
oscillation
oceans
microsatellite repeats
history
loci
Sula
organisms
Sula nebouxii
Sulidae
sequence diversity

ASJC Scopus subject areas

  • Animal Science and Zoology

Citar esto

Taylor, Scott A. ; Zavalaga, Carlos B. ; Luna-Jorquera, Guillermo ; Simeone, Alejandro ; Anderson, David J. ; Friesen, Vicki L. / Panmixia and high genetic diversity in a Humboldt Current endemic, the Peruvian Booby (Sula variegata). En: Journal of Ornithology. 2011 ; Vol. 152, N.º 3. pp. 623-630.
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abstract = "Marine ecosystems and their inhabitants are increasingly under threat from climate change, competition with humans for resources, and pollution. Species that are endemic to particular currents or regions of the world's oceans have the potential to be at higher risk due to localized overfishing, pollution, or locally severe impacts of climate change such as more intense, or longer, El Ni{\~n}o Southern Oscillation events. Understanding patterns of population differentiation in endemic marine organisms may be particularly important for their conservation and persistence. Peruvian Boobies (Sula variegata) are endemic to the Humboldt Current upwelling system and have experienced population fluctuations throughout their evolutionary history due to both dramatic reduction of food supplies, and anthropogenic influence over the last ~150 years. Recent research on other members of the Sulidae indicates that populations of these primarily tropical seabirds show a high degree of genetic differentiation; however, the sister species of the Peruvian Booby, the Blue-footed Booby (S. nebouxii), exhibits only weak range-wide population genetic structure. We characterized population genetic differentiation and diversity in 153 Peruvian Boobies using sequence variation of 540 base pairs of the mitochondrial control region and seven microsatellite loci. Although we found evidence of panmixia, a signature of isolation by distance appears to exist between the five sampled colonies. We also found unexpectedly high genetic diversity given this species' recent population decline. Our results are similar to those for the Humboldt Penguin (Spheniscus humboldti), another endemic of the Humboldt Current upwelling system.",
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Panmixia and high genetic diversity in a Humboldt Current endemic, the Peruvian Booby (Sula variegata). / Taylor, Scott A.; Zavalaga, Carlos B.; Luna-Jorquera, Guillermo; Simeone, Alejandro; Anderson, David J.; Friesen, Vicki L.

En: Journal of Ornithology, Vol. 152, N.º 3, 01.07.2011, p. 623-630.

Resultado de la investigación: Article

TY - JOUR

T1 - Panmixia and high genetic diversity in a Humboldt Current endemic, the Peruvian Booby (Sula variegata)

AU - Taylor, Scott A.

AU - Zavalaga, Carlos B.

AU - Luna-Jorquera, Guillermo

AU - Simeone, Alejandro

AU - Anderson, David J.

AU - Friesen, Vicki L.

PY - 2011/7/1

Y1 - 2011/7/1

N2 - Marine ecosystems and their inhabitants are increasingly under threat from climate change, competition with humans for resources, and pollution. Species that are endemic to particular currents or regions of the world's oceans have the potential to be at higher risk due to localized overfishing, pollution, or locally severe impacts of climate change such as more intense, or longer, El Niño Southern Oscillation events. Understanding patterns of population differentiation in endemic marine organisms may be particularly important for their conservation and persistence. Peruvian Boobies (Sula variegata) are endemic to the Humboldt Current upwelling system and have experienced population fluctuations throughout their evolutionary history due to both dramatic reduction of food supplies, and anthropogenic influence over the last ~150 years. Recent research on other members of the Sulidae indicates that populations of these primarily tropical seabirds show a high degree of genetic differentiation; however, the sister species of the Peruvian Booby, the Blue-footed Booby (S. nebouxii), exhibits only weak range-wide population genetic structure. We characterized population genetic differentiation and diversity in 153 Peruvian Boobies using sequence variation of 540 base pairs of the mitochondrial control region and seven microsatellite loci. Although we found evidence of panmixia, a signature of isolation by distance appears to exist between the five sampled colonies. We also found unexpectedly high genetic diversity given this species' recent population decline. Our results are similar to those for the Humboldt Penguin (Spheniscus humboldti), another endemic of the Humboldt Current upwelling system.

AB - Marine ecosystems and their inhabitants are increasingly under threat from climate change, competition with humans for resources, and pollution. Species that are endemic to particular currents or regions of the world's oceans have the potential to be at higher risk due to localized overfishing, pollution, or locally severe impacts of climate change such as more intense, or longer, El Niño Southern Oscillation events. Understanding patterns of population differentiation in endemic marine organisms may be particularly important for their conservation and persistence. Peruvian Boobies (Sula variegata) are endemic to the Humboldt Current upwelling system and have experienced population fluctuations throughout their evolutionary history due to both dramatic reduction of food supplies, and anthropogenic influence over the last ~150 years. Recent research on other members of the Sulidae indicates that populations of these primarily tropical seabirds show a high degree of genetic differentiation; however, the sister species of the Peruvian Booby, the Blue-footed Booby (S. nebouxii), exhibits only weak range-wide population genetic structure. We characterized population genetic differentiation and diversity in 153 Peruvian Boobies using sequence variation of 540 base pairs of the mitochondrial control region and seven microsatellite loci. Although we found evidence of panmixia, a signature of isolation by distance appears to exist between the five sampled colonies. We also found unexpectedly high genetic diversity given this species' recent population decline. Our results are similar to those for the Humboldt Penguin (Spheniscus humboldti), another endemic of the Humboldt Current upwelling system.

KW - Dispersal

KW - Humboldt current

KW - Marine ecosystems

KW - Population genetics

KW - Sulid

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DO - 10.1007/s10336-010-0628-3

M3 - Article

AN - SCOPUS:79958768189

VL - 152

SP - 623

EP - 630

JO - Journal fur Ornithologie

JF - Journal fur Ornithologie

SN - 2193-7206

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ER -