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Article: Demography and population trends of the largest population of Indo-Pacific humpback dolphins
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TitleDemography and population trends of the largest population of Indo-Pacific humpback dolphins
 
AuthorsHuang, SL4 3
Karczmarski, L1
Chen, J2
Zhou, R4
Lin, W2 4
Zhang, H4
Li, H4
Wu, Y4
 
KeywordsConservation genetics
Demographic survey
Dolphin
Effective population size
Endangered species
 
Issue Date2012
 
PublisherElsevier BV. The Journal's web site is located at http://www.elsevier.com/locate/biocon
 
CitationBiological Conservation, 2012, v. 147 n. 1, p. 234-242 [How to Cite?]
DOI: http://dx.doi.org/10.1016/j.biocon.2012.01.004
 
AbstractEstimates of demographic parameters and predictive modeling of population viability furnish baseline evidence for informed management of species and populations. There are very few examples of such approaches involving cetaceans due to often limited fundamental data, which frequently impairs the effectiveness of conservation. In this study, we estimate demographic parameters for the Indo-Pacific humpback dolphins, Sousa chinensis, from the Pearl River Estuary (PRE), China, based on a life-table constructed using data from stranded animals. We apply current abundance estimates and use an individual-based Leslie-matrix model to predict the population fluctuation by factoring in parameter uncertainty and demographic stochasticity. Our estimates indicate a continuous rate of population decline of 2.46% per annum, albeit with considerable variation. If the estimated rate of decline remains constant, 74.27% of the current population is projected to be lost after three generations and 57.60% of model simulations meet the criteria for classification as endangered under Criterion A3, applying IUCN Red List Categories and Criteria Version 3.1. However, as PRE is among the fastest economically growing regions of China and the world, the estimated rate of decline may further accelerate in a near future and the projected risk of extinction may be higher. Effective conservation measures are much needed and should be seen as a matter of urgency in management plans targeting PRE and environs. © 2012 Elsevier Ltd.
 
ISSN0006-3207
2013 Impact Factor: 4.036
2013 SCImago Journal Rankings: 2.552
 
DOIhttp://dx.doi.org/10.1016/j.biocon.2012.01.004
 
ReferencesReferences in Scopus
 
DC FieldValue
dc.contributor.authorHuang, SL
 
dc.contributor.authorKarczmarski, L
 
dc.contributor.authorChen, J
 
dc.contributor.authorZhou, R
 
dc.contributor.authorLin, W
 
dc.contributor.authorZhang, H
 
dc.contributor.authorLi, H
 
dc.contributor.authorWu, Y
 
dc.date.accessioned2012-09-20T08:25:59Z
 
dc.date.available2012-09-20T08:25:59Z
 
dc.date.issued2012
 
dc.description.abstractEstimates of demographic parameters and predictive modeling of population viability furnish baseline evidence for informed management of species and populations. There are very few examples of such approaches involving cetaceans due to often limited fundamental data, which frequently impairs the effectiveness of conservation. In this study, we estimate demographic parameters for the Indo-Pacific humpback dolphins, Sousa chinensis, from the Pearl River Estuary (PRE), China, based on a life-table constructed using data from stranded animals. We apply current abundance estimates and use an individual-based Leslie-matrix model to predict the population fluctuation by factoring in parameter uncertainty and demographic stochasticity. Our estimates indicate a continuous rate of population decline of 2.46% per annum, albeit with considerable variation. If the estimated rate of decline remains constant, 74.27% of the current population is projected to be lost after three generations and 57.60% of model simulations meet the criteria for classification as endangered under Criterion A3, applying IUCN Red List Categories and Criteria Version 3.1. However, as PRE is among the fastest economically growing regions of China and the world, the estimated rate of decline may further accelerate in a near future and the projected risk of extinction may be higher. Effective conservation measures are much needed and should be seen as a matter of urgency in management plans targeting PRE and environs. © 2012 Elsevier Ltd.
 
dc.description.natureLink_to_subscribed_fulltext
 
dc.identifier.citationBiological Conservation, 2012, v. 147 n. 1, p. 234-242 [How to Cite?]
DOI: http://dx.doi.org/10.1016/j.biocon.2012.01.004
 
dc.identifier.citeulike10313203
 
dc.identifier.doihttp://dx.doi.org/10.1016/j.biocon.2012.01.004
 
dc.identifier.eissn1873-2917
 
dc.identifier.epage242
 
dc.identifier.hkuros210255
 
dc.identifier.issn0006-3207
2013 Impact Factor: 4.036
2013 SCImago Journal Rankings: 2.552
 
dc.identifier.issue1
 
dc.identifier.scopuseid_2-s2.0-84862802640
 
dc.identifier.spage234
 
dc.identifier.urihttp://hdl.handle.net/10722/165982
 
dc.identifier.volume147
 
dc.languageeng
 
dc.publisherElsevier BV. The Journal's web site is located at http://www.elsevier.com/locate/biocon
 
dc.publisher.placeNetherlands
 
dc.relation.ispartofBiological Conservation
 
dc.relation.referencesReferences in Scopus
 
dc.subjectConservation genetics
 
dc.subjectDemographic survey
 
dc.subjectDolphin
 
dc.subjectEffective population size
 
dc.subjectEndangered species
 
dc.titleDemography and population trends of the largest population of Indo-Pacific humpback dolphins
 
dc.typeArticle
 
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<contributor.author>Lin, W</contributor.author>
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Author Affiliations
  1. The University of Hong Kong
  2. Pearl River Estuary Chinese White Dolphin National Nature Reserve
  3. National Taiwan Ocean University
  4. Sun Yat-Sen University