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postgraduate thesis: Cenozoic ostracode biodiversity in the Indo-Pacific

TitleCenozoic ostracode biodiversity in the Indo-Pacific
Authors
Issue Date2017
PublisherThe University of Hong Kong (Pokfulam, Hong Kong)
Citation
Shin, C. P. [單嘉恩]. (2017). Cenozoic ostracode biodiversity in the Indo-Pacific. (Thesis). University of Hong Kong, Pokfulam, Hong Kong SAR.
AbstractBiodiversity is dynamic with time, and can be highly variable. Peak shallow marine diversity currently centers in southeastern Asia in the Indo-west Pacific (IWP) or Indo-Australian Archipelago hotspot, but its presence has only been apparent since the middle Cenozoic and it is still unclear how diversity has developed to form this locus. Fossil diversity during the Miocene, Pliocene, and Pleistocene was investigated for a diverse, widespread and abundant microfossil class (Crustacea: Ostracoda) from Java island (Indonesia) and the Philippines. An unprecedented number of taxa from this collection, half of which may be new, were discovered. From low species, generic and familial diversity in the Miocene, there was an increase in the Pliocene, the period where diversity was also most variable. Diversity subsequently declined from the Pleistocene onwards. Though approximate trends are similar among taxonomic levels, family diversity was significantly different to species and genera. These epochal diversities were not statistically significant, but sample clustering by time and location can be observed. Although the majority of ostracodes were common to multiple time intervals, taxa that contributed the most to similarities within temporal and locality groupings were almost identical to those responsible for dissimilarities between paired time and location comparisons. Fluctuating diversity with time and the occurrences of cosmopolitan fauna antecedent to the IWP suggest the effect of Pliocene and Pleistocene eustatic changes, and Cenozoic tectonic events. A tropical ostracode hotspot may have occurred before the present, or lie outside of the studied time and region.
DegreeMaster of Philosophy
SubjectOstracoda, Fossil - Indo-Pacific Region
Paleontology - Cenozoic
Dept/ProgramBiological Sciences
Persistent Identifierhttp://hdl.handle.net/10722/240671
HKU Library Item IDb5855036

 

DC FieldValueLanguage
dc.contributor.authorShin, Caren Pearl-
dc.contributor.author單嘉恩-
dc.date.accessioned2017-05-09T23:14:53Z-
dc.date.available2017-05-09T23:14:53Z-
dc.date.issued2017-
dc.identifier.citationShin, C. P. [單嘉恩]. (2017). Cenozoic ostracode biodiversity in the Indo-Pacific. (Thesis). University of Hong Kong, Pokfulam, Hong Kong SAR.-
dc.identifier.urihttp://hdl.handle.net/10722/240671-
dc.description.abstractBiodiversity is dynamic with time, and can be highly variable. Peak shallow marine diversity currently centers in southeastern Asia in the Indo-west Pacific (IWP) or Indo-Australian Archipelago hotspot, but its presence has only been apparent since the middle Cenozoic and it is still unclear how diversity has developed to form this locus. Fossil diversity during the Miocene, Pliocene, and Pleistocene was investigated for a diverse, widespread and abundant microfossil class (Crustacea: Ostracoda) from Java island (Indonesia) and the Philippines. An unprecedented number of taxa from this collection, half of which may be new, were discovered. From low species, generic and familial diversity in the Miocene, there was an increase in the Pliocene, the period where diversity was also most variable. Diversity subsequently declined from the Pleistocene onwards. Though approximate trends are similar among taxonomic levels, family diversity was significantly different to species and genera. These epochal diversities were not statistically significant, but sample clustering by time and location can be observed. Although the majority of ostracodes were common to multiple time intervals, taxa that contributed the most to similarities within temporal and locality groupings were almost identical to those responsible for dissimilarities between paired time and location comparisons. Fluctuating diversity with time and the occurrences of cosmopolitan fauna antecedent to the IWP suggest the effect of Pliocene and Pleistocene eustatic changes, and Cenozoic tectonic events. A tropical ostracode hotspot may have occurred before the present, or lie outside of the studied time and region.-
dc.languageeng-
dc.publisherThe University of Hong Kong (Pokfulam, Hong Kong)-
dc.relation.ispartofHKU Theses Online (HKUTO)-
dc.rightsThe author retains all proprietary rights, (such as patent rights) and the right to use in future works.-
dc.rightsThis work is licensed under a Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International License.-
dc.subject.lcshOstracoda, Fossil - Indo-Pacific Region-
dc.subject.lcshPaleontology - Cenozoic-
dc.titleCenozoic ostracode biodiversity in the Indo-Pacific-
dc.typePG_Thesis-
dc.identifier.hkulb5855036-
dc.description.thesisnameMaster of Philosophy-
dc.description.thesislevelMaster-
dc.description.thesisdisciplineBiological Sciences-
dc.description.naturepublished_or_final_version-

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