Amrita Srivathsan
Ph.D. Student

Evolutionary Biology Laboratory
Department of Biological Sciences
National University of Singapore

Blk S1A #05-20
14 Science Drive 4
Singapore 117543

+65 6516 2968 (Tel)
+65 6779 2486 (Fax)

asrivathsan@gmail.com

 

Education
2010 - Present Ph.D. candidate in Department of Biological Sciences, NUS and Department of Life Sciences, Imperial College London
2006 - 2010 B.Sc. (Hons) in Life Sciences (National University of Singapore)

Research Interests
I am interested in molecular methods of species identification and related bioinformatics. I focus on the taxonomic categorization of metagenomic data from environmental samples.

Research Projects

With next generation sequencing technologies, it is now possible to characterize complex environmental samples by whole genome shotgun sequencing of the DNA extracted. The focus of my thesis is to characterize feeding ecology using fecal DNA. We optimized the bioinformatics for a metagenomic approach to diet analyses to obtain reliable identifications for diet items and then compared metagenomics and metabarcoding using samples with known diet. We then apply these optimized approaches to characterize the diet of the banded leaf monkeys, a critically endangered primate in Singapore. We also address the questions related to population diversity and gut parasites.

For my honours thesis, I studied the evolution of the genes related to audition in primates and in particular genes related to the function of inner ear. We used methods for phenotype-genotype correlations and analysed whether frequency of hearing is correlated with genetic evolution.


Publications
Srivathsan, A., Sha, J. C. M., Vogler, A., Meier, R. (2014) Comparing the effectiveness of metagenomics and metabarcoding for diet analysis of a leaf-feeding monkey (Pygathrix nemaeus). Molecular Ecology Resources DOI: 10.1111/1755-0998.12302.

Zhao, L., Ang, A., Srivathsan, A., Su, K. F. Y., Meier, R. (2013) Does better taxon sampling help? A new phylogenetic hypothesis for Sepsidae (Diptera: Cyclorrhapha) based on 50 new taxa and the same old mitochondrial and nuclear markers. Molecular Phylogenetics and Evolution 69 (1), 153-164.

Wong, H. F., Tan, S.Y.,Koh, C.Y., Siow, M.H.J., Li, T.,Heyzer, H., Ang, A.H.F., Ismail, M.R.B, Srivathsan, A., Tan, H.T.W., (2013). Checklist of the Plant Species of Nee Soon Swamp Forest, Singapore: Bryophytes to Angiosperms. National Parks Board and Raffles Museum of Biodiversity Research, National University of Singapore, Singapore. 521 pp.

Wang, Y.C., Srivathsan, A., Feng, C.C., Salim, A., Shekelle, M. (2013). Asian primate species richness correlates with rainfall. PLoS ONE e54995.

Ang A., Srivathsan A., Md.-Zain B.M., Ismail M. R. B., Meier R. (2012). Low genetic variability in the recovering urban banded leaf monkey population of Singapore. The Raffles Bulletin of Zoology 60(2): 589–594.

Kwong S, Srivathsan A, Meier R. 2012. An update on DNA barcoding: low species coverage and numerous unidentified sequences. Cladistics 28 (6), 639-644.

Kwong S, Srivathsan A, Vaidya G, Meier R. 2012. Is the COI barcoding gene involved in speciation through intergenomic conflict? Molecular Phylogenetics and Evolution 62(3): 1009-1012.

Srivathsan A, Meier R. 2012. On the inappropriate use of Kimura-2-parameter (K2P) divergences in the DNA-barcoding literature. Cladistics 28(2): 190-194.

Srivathsan, A, Meier, R. 2011. Proboscis monkeys (Nasalis larvatus (Wurmb,1787)) have unusually high pitched vocalizations. The Raffles Bulletin of Zoology 59(2):317-321.

Selected Grants, Fellowships and Awards
2012 - 2014 President's Graduate Fellowship
2010 - 2012 NUS Research Scholarship
2010 NUS University Scholars Programme (USP) President’s Honour Roll
2010 NUS University Scholars Programme (USP) Senior Honour Roll
2009 NUS University Scholars Programme (USP) Honour Roll
2008 NUS University Scholars Programme (USP) Study and Research Grant
2006 - 2010 University Scholar, National University of Singapore
2006 Merit Certificate in Biology, CBSE, India

Packages developed

readsidentifier: Pipeline for read based identification of Next Generation Sequencing data.

Conferences
Srivathsan, A., Ang A., Teo, L. Y., Vogler A. and Meier R. (2014, Sep). Studying the ecology of endangered primates using metagenomics. Poster presentation at the NUS-Imperial College London Symposium 2014, Singapore.

Srivathsan, A., Ang A., Teo, L. Y., Vogler A. and Meier R. (2014, May). Studying the natural history of endangered species in the genomic era. Oral presentation at the Biodiversity Research Symposium, Singapore.

Zhao L., Su, K.F.Y., Ang, A., Srivathsan, A. and Meier R. (2013, Aug). A new phylogenetic hypothesis for Sepsidae (Diptera: Cyclorrhapha) based on improved taxa sampling and phylogenomic analyses of transcriptome data. Oral presentation (by L. Zhao) at the XXXII Meeting of the Willi Hennig Society, Rostock, Germany.

Srivathsan, A., Ang A., Sha J., Chua M., Vogler A. and Meier R. (2013, Jun). Can Next Generation Sequencing help with obtaining ecological information about endangered species? Poster presentation at Tropical Biodiversity in the 21st Century Symposium, London, UK.

Srivathsan, A., Ang A., Goh W.K., Vogler A. and Meier R. (2013, Mar). Can Next Generation Sequencing help with obtaining ecological information about endangered species? Poster presentation at Natural History Museum Student Conference, London, UK.

Srivathsan, A., Ang A., Goh W.K., Vogler A. and Meier R. (2012, Oct). Can Next Generation Sequencing help with obtaining ecological information about endangered species? Poster presentation at Imperial-NUS symposium, London, UK.

Ang, A., Srivathsan, A., Meier, R. and Md-Zain, B. (2012, Apr). Population recovery and genetic variability in an urban environment: Singapore’s banded leaf monkey population (by A. Ang) at the 81th Annual Meeting of the American Association of Physical Anthropologists, Portland, USA.

Ismail, M., Ang, A. and Srivathsan, A. (2011, Sep). Distribution, diet, reproduction, behaviour and genetic diversity of Banded Leaf Monkeys (Presbytis femoralis femoralis) in Singapore. Poster presentation (M. Ismail) at Biodiversity of Singapore Symposium III, Singapore.

Shekelle, M., Salim, A. and Srivathsan, A. (2009, Sep). Correlation of primate species richness and rainfall facilitates GIS modeling of the effects of global warming on primate species richness capacity. Oral presentation (by M. Shekelle) at the Thirty-second Meeting of American Society of Primatologists, San Diego, USA.

Shekelle, M., Salim, A. and Srivathsan, A. (2009, Apr). Asian primate species richness correlates with rainfall using GIS modeling. Oral presentation (by M. Shekelle) at the Seventy-eighth Annual Meeting of the American Association of Physical Anthropologists, Chicago, USA.

Srivathsan, A., Salim, A. and Shekelle, M. (2008, Aug). Southeast Asian primate species richness correlates linearly with rainfall using GIS modeling. Oral presentation at the International Primatological Society XXII Congress, Edinburgh, UK.

Teaching Experience
2011 Teaching Assistant, LSM4254: Principles of Taxonomy and Systematics, Semester 1, AY2011/12, NUS
2010 Teaching Assistant, ULS2202: Evolution, Semester 1, AY2010/11, NUS

Last updated: September 18, 2014