Museum collections reveal that Buff-breasted Sandpipers (Calidris subruficollis) maintained mtDNA variability despite large population declines during the past 135 years

Zachary Lounsberry, Juliana B. Almeida, Richard B. Lanctot, Joseph R. Liebezeit, Brett K. Sandercock, Khara M. Strum, Steve Zack, Samantha M. Wisely

Research output: Contribution to journalArticle

2 Citations (Scopus)

Abstract

A principal goal of conservation efforts for threatened and endangered taxa is maintenance of genetic diversity. Modern and historic processes that limit population size can contribute to a loss of genetic variation that can reduce future adaptability of a species. Buff-breasted Sandpipers (Calidris subruficollis) are a Neotropical migratory shorebird that experienced rapid, large-scale declines in population numbers (population bottleneck) due to intensive market hunting at the turn of the 20th century. Market hunting ended shortly after the passage of the Migratory Bird Treaty Act in 1918, but subsequent population losses have occurred due to continued anthropogenic disturbances throughout the species’ migratory range. To assess the impact of population declines on the genetic variation of Buff-breasted Sandpipers, we surveyed two mitochondrial DNA (mtDNA) markers, the control region and cytochrome b, from 209 museum specimens collected between 1874 and 1983 and 460 modern samples collected between 1993 and 2009. Measures of mtDNA variation did not change significantly among individuals sampled before and after the ban on market hunting, nor among four temporal groups (Pre-Act, Early Post-Act, Late Post-Act, and Modern; trend analysis: χ2 = 0.171, P = 0.679). Similarly, we did not observe loss of common haplotypes, implying that there was no substantial reduction in unique matrilineal units during our 135-year study period. Using Bayesian Skyline reconstruction of temporal changes in effective population size of females (Nef), we concluded that Nef has been stable for the past century. Results of resampling suggest that diversity estimators can be imprecise and we emphasize the importance of a well-rounded analytical approach to addressing conservation genetic hypotheses. Considering all of the evidence it appears that genetic variation and Nef were stable despite the pressures of market hunting early in the 20th century and habitat loss and degradation in the latter half of the 20th century. Conservation efforts should continue to focus on maintaining the population size of Buff-breasted Sandpipers to avoid reaching a threshold where genetic variability is lost.

Original languageEnglish (US)
Pages (from-to)1197-1208
Number of pages12
JournalConservation Genetics
Volume15
Issue number5
DOIs
StatePublished - Jan 1 2014

Fingerprint

Scolopacidae
Museums
population decline
Mitochondrial DNA
mitochondrial DNA
hunting
museum
Population Density
genetic variation
market
markets
population size
Population
International Cooperation
migratory species
conservation genetics
population bottleneck
Cytochromes b
wader
trend analysis

Keywords

  • Effective population size
  • Historic DNA
  • mtDNA
  • Shorebird
  • Wader

ASJC Scopus subject areas

  • Ecology, Evolution, Behavior and Systematics
  • Genetics

Cite this

Museum collections reveal that Buff-breasted Sandpipers (Calidris subruficollis) maintained mtDNA variability despite large population declines during the past 135 years. / Lounsberry, Zachary; Almeida, Juliana B.; Lanctot, Richard B.; Liebezeit, Joseph R.; Sandercock, Brett K.; Strum, Khara M.; Zack, Steve; Wisely, Samantha M.

In: Conservation Genetics, Vol. 15, No. 5, 01.01.2014, p. 1197-1208.

Research output: Contribution to journalArticle

Lounsberry, Zachary ; Almeida, Juliana B. ; Lanctot, Richard B. ; Liebezeit, Joseph R. ; Sandercock, Brett K. ; Strum, Khara M. ; Zack, Steve ; Wisely, Samantha M. / Museum collections reveal that Buff-breasted Sandpipers (Calidris subruficollis) maintained mtDNA variability despite large population declines during the past 135 years. In: Conservation Genetics. 2014 ; Vol. 15, No. 5. pp. 1197-1208.
@article{db9e5349e35d4ae6a3af6913b91be310,
title = "Museum collections reveal that Buff-breasted Sandpipers (Calidris subruficollis) maintained mtDNA variability despite large population declines during the past 135 years",
abstract = "A principal goal of conservation efforts for threatened and endangered taxa is maintenance of genetic diversity. Modern and historic processes that limit population size can contribute to a loss of genetic variation that can reduce future adaptability of a species. Buff-breasted Sandpipers (Calidris subruficollis) are a Neotropical migratory shorebird that experienced rapid, large-scale declines in population numbers (population bottleneck) due to intensive market hunting at the turn of the 20th century. Market hunting ended shortly after the passage of the Migratory Bird Treaty Act in 1918, but subsequent population losses have occurred due to continued anthropogenic disturbances throughout the species’ migratory range. To assess the impact of population declines on the genetic variation of Buff-breasted Sandpipers, we surveyed two mitochondrial DNA (mtDNA) markers, the control region and cytochrome b, from 209 museum specimens collected between 1874 and 1983 and 460 modern samples collected between 1993 and 2009. Measures of mtDNA variation did not change significantly among individuals sampled before and after the ban on market hunting, nor among four temporal groups (Pre-Act, Early Post-Act, Late Post-Act, and Modern; trend analysis: χ2 = 0.171, P = 0.679). Similarly, we did not observe loss of common haplotypes, implying that there was no substantial reduction in unique matrilineal units during our 135-year study period. Using Bayesian Skyline reconstruction of temporal changes in effective population size of females (Nef), we concluded that Nef has been stable for the past century. Results of resampling suggest that diversity estimators can be imprecise and we emphasize the importance of a well-rounded analytical approach to addressing conservation genetic hypotheses. Considering all of the evidence it appears that genetic variation and Nef were stable despite the pressures of market hunting early in the 20th century and habitat loss and degradation in the latter half of the 20th century. Conservation efforts should continue to focus on maintaining the population size of Buff-breasted Sandpipers to avoid reaching a threshold where genetic variability is lost.",
keywords = "Effective population size, Historic DNA, mtDNA, Shorebird, Wader",
author = "Zachary Lounsberry and Almeida, {Juliana B.} and Lanctot, {Richard B.} and Liebezeit, {Joseph R.} and Sandercock, {Brett K.} and Strum, {Khara M.} and Steve Zack and Wisely, {Samantha M.}",
year = "2014",
month = "1",
day = "1",
doi = "10.1007/s10592-014-0611-2",
language = "English (US)",
volume = "15",
pages = "1197--1208",
journal = "Conservation Genetics",
issn = "1566-0621",
publisher = "Springer Netherlands",
number = "5",

}

TY - JOUR

T1 - Museum collections reveal that Buff-breasted Sandpipers (Calidris subruficollis) maintained mtDNA variability despite large population declines during the past 135 years

AU - Lounsberry, Zachary

AU - Almeida, Juliana B.

AU - Lanctot, Richard B.

AU - Liebezeit, Joseph R.

AU - Sandercock, Brett K.

AU - Strum, Khara M.

AU - Zack, Steve

AU - Wisely, Samantha M.

PY - 2014/1/1

Y1 - 2014/1/1

N2 - A principal goal of conservation efforts for threatened and endangered taxa is maintenance of genetic diversity. Modern and historic processes that limit population size can contribute to a loss of genetic variation that can reduce future adaptability of a species. Buff-breasted Sandpipers (Calidris subruficollis) are a Neotropical migratory shorebird that experienced rapid, large-scale declines in population numbers (population bottleneck) due to intensive market hunting at the turn of the 20th century. Market hunting ended shortly after the passage of the Migratory Bird Treaty Act in 1918, but subsequent population losses have occurred due to continued anthropogenic disturbances throughout the species’ migratory range. To assess the impact of population declines on the genetic variation of Buff-breasted Sandpipers, we surveyed two mitochondrial DNA (mtDNA) markers, the control region and cytochrome b, from 209 museum specimens collected between 1874 and 1983 and 460 modern samples collected between 1993 and 2009. Measures of mtDNA variation did not change significantly among individuals sampled before and after the ban on market hunting, nor among four temporal groups (Pre-Act, Early Post-Act, Late Post-Act, and Modern; trend analysis: χ2 = 0.171, P = 0.679). Similarly, we did not observe loss of common haplotypes, implying that there was no substantial reduction in unique matrilineal units during our 135-year study period. Using Bayesian Skyline reconstruction of temporal changes in effective population size of females (Nef), we concluded that Nef has been stable for the past century. Results of resampling suggest that diversity estimators can be imprecise and we emphasize the importance of a well-rounded analytical approach to addressing conservation genetic hypotheses. Considering all of the evidence it appears that genetic variation and Nef were stable despite the pressures of market hunting early in the 20th century and habitat loss and degradation in the latter half of the 20th century. Conservation efforts should continue to focus on maintaining the population size of Buff-breasted Sandpipers to avoid reaching a threshold where genetic variability is lost.

AB - A principal goal of conservation efforts for threatened and endangered taxa is maintenance of genetic diversity. Modern and historic processes that limit population size can contribute to a loss of genetic variation that can reduce future adaptability of a species. Buff-breasted Sandpipers (Calidris subruficollis) are a Neotropical migratory shorebird that experienced rapid, large-scale declines in population numbers (population bottleneck) due to intensive market hunting at the turn of the 20th century. Market hunting ended shortly after the passage of the Migratory Bird Treaty Act in 1918, but subsequent population losses have occurred due to continued anthropogenic disturbances throughout the species’ migratory range. To assess the impact of population declines on the genetic variation of Buff-breasted Sandpipers, we surveyed two mitochondrial DNA (mtDNA) markers, the control region and cytochrome b, from 209 museum specimens collected between 1874 and 1983 and 460 modern samples collected between 1993 and 2009. Measures of mtDNA variation did not change significantly among individuals sampled before and after the ban on market hunting, nor among four temporal groups (Pre-Act, Early Post-Act, Late Post-Act, and Modern; trend analysis: χ2 = 0.171, P = 0.679). Similarly, we did not observe loss of common haplotypes, implying that there was no substantial reduction in unique matrilineal units during our 135-year study period. Using Bayesian Skyline reconstruction of temporal changes in effective population size of females (Nef), we concluded that Nef has been stable for the past century. Results of resampling suggest that diversity estimators can be imprecise and we emphasize the importance of a well-rounded analytical approach to addressing conservation genetic hypotheses. Considering all of the evidence it appears that genetic variation and Nef were stable despite the pressures of market hunting early in the 20th century and habitat loss and degradation in the latter half of the 20th century. Conservation efforts should continue to focus on maintaining the population size of Buff-breasted Sandpipers to avoid reaching a threshold where genetic variability is lost.

KW - Effective population size

KW - Historic DNA

KW - mtDNA

KW - Shorebird

KW - Wader

UR - http://www.scopus.com/inward/record.url?scp=84907085371&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=84907085371&partnerID=8YFLogxK

U2 - 10.1007/s10592-014-0611-2

DO - 10.1007/s10592-014-0611-2

M3 - Article

AN - SCOPUS:84907085371

VL - 15

SP - 1197

EP - 1208

JO - Conservation Genetics

JF - Conservation Genetics

SN - 1566-0621

IS - 5

ER -