Please use this identifier to cite or link to this item: http://scholarbank.nus.edu.sg/handle/10635/49615
Title: MODERN MORPHOLOGICAL TECHNIQUES AND THE EVOLUTIONARY BIOLOGY AND TAXONOMY OF SEPSIDAE (DIPTERA)
Authors: ANG YUCHEN
Keywords: Morphology, Taxonomy, Evolutionary Biology, Sepsidae
Issue Date: 16-Aug-2013
Source: ANG YUCHEN (2013-08-16). MODERN MORPHOLOGICAL TECHNIQUES AND THE EVOLUTIONARY BIOLOGY AND TAXONOMY OF SEPSIDAE (DIPTERA). ScholarBank@NUS Repository.
Abstract: In my thesis, I pursue my research interests in morphology by conducting a series of studies on the evolutionary biology and taxonomy of Sepsidae (Diptera), using various bioimaging techniques such as microcomputered-tomography, photomicrography and scanning electron-microscopy. First, I document how de-novo appendages evolved from male sternites and that it evolved twice in sepsids. Second, I demonstrate that sexual selection highly increases morphological divergence by quantifying and comparing the rates of evolution between sexually dimorphic structures that are likely to be under sexual selection and monomorphic structures that are mostly under viability selection. Third, I explore the benefits of coupling taxonomy with information technology by creating a digital reference collection featuring 140 sepsid species and publishing species descriptions simultaneously featured as entries in a wiki-based platform. Lastly, I show how morphological data-richness and iterative taxonomy can address inadequately diagnostic species descriptions and resolve 'cryptic' species and disjunctive distributions in species.
URI: http://scholarbank.nus.edu.sg/handle/10635/49615
Appears in Collections:Ph.D Theses (Open)

Show full item record
Files in This Item:
File Description SizeFormatAccess SettingsVersion 
Video1.mov8.23 MBVideo Quicktime

OPEN

None Preview online
View/Download
YuchenAng (Part 1 of 3).pdf4.02 MBAdobe PDF

OPEN

NoneView/Download
YuchenAng (Part 2 of 3).pdf9.53 MBAdobe PDF

OPEN

NoneView/Download
YuchenAng (Part 3 of 3).pdf1.86 MBAdobe PDF

OPEN

NoneView/Download
Appendix 1B- Model 1 (Saltella sphondylii M).pdf2.02 MBAdobe PDF

OPEN

NoneView/Download
Appendix 1B- Model 2 (Themira lucida M).pdf2.6 MBAdobe PDF

OPEN

NoneView/Download
Appendix 1B- Model 3 (Themira superba M).pdf1.68 MBAdobe PDF

OPEN

NoneView/Download
Appendix 1B- Model 4 (Themira superba F).pdf1.85 MBAdobe PDF

OPEN

NoneView/Download

Page view(s)

126
checked on Dec 18, 2017

Download(s)

288
checked on Dec 18, 2017

Google ScholarTM

Check


Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.