I obtained a PhD degree from the Australian National University in December 2010. The thesis looks at the performance of various habitat modeling methods using simulated data and how the nature of species distribution data and methodological factors affect the performance of habitat models (relevant papers: santika2009effect, santika2011prevalence). I was a postdoctoral researcher at the University of Queensland in 2011-2012, working on assessing climate and land-use change impacts on the distributions of the koalas in and spatio-temporal priorities for the recovery of the species (relevant papers: santika2014modellling).

I am currently working on assessing protected area effectiveness in Kalimantan and modelling metapopulation dynamics of the orangutan populations in Sabah, Malaysia, funded by the Australian Centre of Excellence in Environmental Decisions, as part of the Borneo Futures initiative. Key collaborators for this projects include Dr. Kerrie Wilson (University of Queensland), Dr. Erik Meijaard (People and Nature Consulting International), Dr. Marc Ancrenaz (HUTAN – Kinabatangan Orangutan Conservation Project), and Dr. Stephanie Spehar (University of Wisconsin).

UQ Adjunct Fellow

The University of Queensland, March 2011 – current

E-Mail:  trulysantika@gmail.com

Research interests

My research interests include spatial and temporal prioritization for conservation planning, population dynamics, macroecology and species distribution modelling, applied statistics and mathematics in ecology and natural resource management, and spatial analysis.

  • Macroecological and niche modeling
  • Spatial population dynamics
  • Empirical and theoretical spatio-temporal analysis
  • Optimization modeling for biodiversity conservation and natural resource management

Themes and Projects:

Borneo project

 

Publications:

Published peer-review papers:

Santika, T., McAlpine, C., Lunney, D., Wilson, K.A. & Rhodes, J.R. (2014) Modelling species distributional shifts across broad spatial extents by linking   dynamic occupancy models with public-based surveys. Diversity and Distributions 20, 786–796. View online

Lunney, D., Stalenberg, E., Santika, T. & Rhodes, J.R. (2014) Extinction in Eden: identifying the role of climate change in the decline of the koala in south-eastern NSW. Wildlife Research 41, 22-34.

Santika, T. (2011) Assessing the effect of prevalence on the predictive performance of species distribution models using simulated data. Global Ecology and Biogeography 20, 181–192. View online

Santika, T. & Hutchinson, M.F. (2009) The effect of species response form on species distribution model prediction and inference. Ecological Modelling 220, 2365–2379. View online

Hearne, J., Santika, T. & Goodman, P. (2008) Portfolio selection theory and wildlife management. ORiON 24, 103-113. View online

 

Manuscripts in review:

Santika, T., McAlpine, C., Lunney, D., Wilson, K.A. &   Rhodes, J.R. (Minor revision) Assessing spatio-temporal priorities for species’ recovery in broad-scale dynamic landscapes

Santika, T., Meijaard, E. & Wilson, K.A. (In review) Effectiveness of protected areas in preventing deforestation: what role do logging concessions play?

Santika, T., Hutchinson, M.F. & Wilson, K.A. (In review) Another look at current approaches for measuring the accuracy of presence-only species distribution models.

Lunney, D., Predavec, M., Miller, I., Shannon, I., Santika, T., Rhodes, J., Fisher, M., Moon, C., Turbill, J., & Matthews, A. (In review) Long-term datasets reveal the decline of an iconic, but cryptic, species: koalas of Coffs Harbour on the north coast of NSW.

 

Reports and Theses:

Santika, T. (2010) The assessment of factors effecting species distribution model inference and prediction using simulated data. PhD thesis. The Australian National University (ANU), Canberra.

Santika, T. (2005) Portfolio selection theory for assessing the risk and optimizing the trade off-take of African game. Master thesis. School of Mathematical and Geospatial Sciences. Royal Melbourne Institute of Technology (RMIT), Melbourne.

Santika, T. (2004) Modelling the mean monthly precipitation of Madagascar using thin plate smoothing spline. Project report. The Fenner School of Environment and Society (formerly Centre for Resource and Environmental Studies), The Australian National University (ANU), Canberra. 11 pages.

Santika, T. (2004) The interpolation of Timor monthly mean rainfall using thin plate smoothing spline. Project report. The Fenner School of Environment and Society (formerly Centre for Resource and Environmental Studies), The Australian National University (ANU), Canberra. 26 pages.