@article{Cantor2012-01Asses-50152,
  year={2012},
  doi={10.1111/j.1748-7692.2010.00456.x},
  title={Assessing population parameters and trends of Guiana dolphins (Sotalia guianensis ) : An eight-year mark-recapture study},
  number={1},
  volume={28},
  issn={1748-7692},
  journal={Marine Mammal Science},
  pages={63--83},
  author={Cantor, Mauricio and Wedekin, Leonardo L. and Daura-Jorge, Fábio G. and Rossi-Santos, Marcos R. and Simões-Lopes, Paulo C.}
}

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    <dc:contributor>Wedekin, Leonardo L.</dc:contributor>
    <dc:contributor>Simões-Lopes, Paulo C.</dc:contributor>
    <dc:creator>Wedekin, Leonardo L.</dc:creator>
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    <dc:contributor>Rossi-Santos, Marcos R.</dc:contributor>
    <dc:contributor>Cantor, Mauricio</dc:contributor>
    <dcterms:title>Assessing population parameters and trends of Guiana dolphins (Sotalia guianensis ) : An eight-year mark-recapture study</dcterms:title>
    <dc:contributor>Daura-Jorge, Fábio G.</dc:contributor>
    <dc:creator>Daura-Jorge, Fábio G.</dc:creator>
    <dcterms:abstract xml:lang="eng">This study represents the first attempt to study the population dynamics of Guiana dolphins (Sotalia guianensis ), by evaluating a set of demographic parameters. The population of the Caravelas River estuary, eastern Brazil, was systematically monitored through a long‐term mark‐recapture experiment (2002–2009). Abundance estimates revealed a small population (57–124 dolphins), comprised of resident dolphins and individuals that temporarily leave or pass through the study area. Temporary emigration from the estuary to adjacencies (γ″= 0.33 ± 0.07 SE) and return rate (1 −γ′= 0 .67) were moderate and constant, indicating that some dolphins use larger areas. Survival rate (ϕ= 0.88 ± 0.07 SE) and abundance were constant throughout the study period. Power analysis showed that the current monitoring effort has high probability of detecting abrupt population declines (1 −β= 0.9). Although the monitoring is not yet sensitive to subtle population trends, sufficient time to identify them is feasible (additional 3 yr). Despite such apparent stability, this population, as many others, inhabits waters exposed to multiple human‐related threats. Open and closed population modeling applied to photo‐identification data provide a robust baseline for estimating several demographic parameters and can be applied to other populations to allow further comparisons. Such synergistic efforts will allow a reliable definition of conservation status of this species.</dcterms:abstract>
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    <dc:creator>Cantor, Mauricio</dc:creator>
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    <dc:creator>Simões-Lopes, Paulo C.</dc:creator>
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    <dc:creator>Rossi-Santos, Marcos R.</dc:creator>
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