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Population Trend of the World's Monitored Seabirds, 1950-2010.


ABSTRACT: Seabird population changes are good indicators of long-term and large-scale change in marine ecosystems, and important because of their many impacts on marine ecosystems. We assessed the population trend of the world's monitored seabirds (1950-2010) by compiling a global database of seabird population size records and applying multivariate autoregressive state-space (MARSS) modeling to estimate the overall population trend of the portion of the population with sufficient data (i.e., at least five records). This monitored population represented approximately 19% of the global seabird population. We found the monitored portion of the global seabird population to have declined overall by 69.7% between 1950 and 2010. This declining trend may reflect the global seabird population trend, given the large and apparently representative sample. Furthermore, the largest declines were observed in families containing wide-ranging pelagic species, suggesting that pan-global populations may be more at risk than shorter-ranging coastal populations.

SUBMITTER: Paleczny M 

PROVIDER: S-EPMC4461279 | biostudies-literature | 2015

REPOSITORIES: biostudies-literature

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Population Trend of the World's Monitored Seabirds, 1950-2010.

Paleczny Michelle M   Hammill Edd E   Karpouzi Vasiliki V   Pauly Daniel D  

PloS one 20150609 6


Seabird population changes are good indicators of long-term and large-scale change in marine ecosystems, and important because of their many impacts on marine ecosystems. We assessed the population trend of the world's monitored seabirds (1950-2010) by compiling a global database of seabird population size records and applying multivariate autoregressive state-space (MARSS) modeling to estimate the overall population trend of the portion of the population with sufficient data (i.e., at least fiv  ...[more]

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