Size Fraction Effects on Planktonic Foraminifera Assemblages: A Compositional Contribution to the Golden Sieve Rush
dc.contributor.author
dc.date.accessioned
2015-09-16T10:33:29Z
dc.date.available
2015-09-16T10:33:29Z
dc.date.issued
2015-05
dc.identifier.issn
1874-8961
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dc.description.abstract
A comparative study of Last Glacial to Holocene planktonic foraminiferal assemblages obtained from 150 to 106 m size fractions of a Tyrrhenian sea core was carried out by means of compositional data analysis methods. The results show a major loss of small-sized species in the 150 m size fraction, resulting in underdetection limit values for several Holocene samples. Statistical tests, performed by means of contrast and bootstrap, indicate that the assemblages obtained differ statistically. Nevertheless, despite the drawbacks of the analysis based on the 150 m fraction, these differences do not imply, in the compositional data analysis approach, a significant change in covariance structure. Under compositional data analysis, covariance-based analysis should give similar results regardless of the size fraction adopted, while distance-based ones may give partly different results. The 106 m size fraction, in which both large and small-sized species are sufficiently represented, is proposed for adoption in future studies focussing on palaeoclimatic reconstruction
dc.description.sponsorship
This research was supported by the Ministerio de Economia y Competividad under the project METRICS Ref. MTM2012-33236; by the Agencia de Gestio d'Ajuts Universitaris i de Recerca of the Generalitat de Catalunya under the project Ref. 2009SGR424. The authors would like to thank the anonymous reviewers for their valuable comments and suggestions to improve the quality of the paper.
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application/pdf
dc.language.iso
eng
dc.publisher
Springer Verlag
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info:eu-repo/grantAgreement/MINECO//MTM2012-33236/ES/METODOS ESTADISTICOS EN ESPACIOS RESTRINGIDOS/
AGAUR/2009-2014/2009 SGR-424
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Reproducció digital del document publicat a: http://dx.doi.org/10.1007/s11004-014-9529-y
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© Mathematical Geosciences, 2015, vol. 47, núm. 4, p. 455-470
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Articles publicats (D-IMA)
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Tots els drets reservats
dc.subject
dc.title
Size Fraction Effects on Planktonic Foraminifera Assemblages: A Compositional Contribution to the Golden Sieve Rush
dc.type
info:eu-repo/semantics/article
dc.rights.accessRights
info:eu-repo/semantics/embargoedAccess
dc.embargo.terms
Cap
dc.date.embargoEndDate
info:eu-repo/date/embargoEnd/2026-01-01
dc.type.version
info:eu-repo/semantics/publishedVersion
dc.identifier.doi
dc.identifier.idgrec
022344
dc.contributor.funder
dc.relation.ProjectAcronym
dc.identifier.eissn
1874-8953