Principal Investigator

KalsumKalsum M. Yusah

I am interested in the way that animals respond to human-driven environmental changes. I work mainly on ants, but am also interested in mammals. I am currently investigating the impacts of logging, forest fragmentation and conversion to oil palm on ant-plant interactions, and also on vertical stratification of ant communities within the canopy. This work is being carried out in collaboration with the Stability of Altered Forest Ecosystems project (SAFE). I am also looking at changes in ant communities and ant scavenging rates along altitudinal gradients, with a view to predicting climate change impacts, in collaboration with Sabah Parks. Finally, I am collaborating with Danau Girang Field Centre to look at spatial distributions of banteng (Bos javanicus) wild cattle in relation to human disturbance.


Masters students

AmyAmelia Joyce Philip

Amy’s work focusses on the impacts of canopy simplification due to logging in terms of vertical stratification of ants. She is also investigating the differences in vulnerability between different microhabitats to habitat degradation. This work is funded by the Czech Science Foundation.



IMG_8502Wanji Chua
Co-supervised by Dr Tom Fayle

Wanji is interested in the way that the mutualistic interaction between Crematogaster ants and their host Macaranga trees is affected by logging and conversion to oil palm. This has implications for regeneration of degraded forests. This work is funded by the Malaysian Minstry of Higher education.


Hugo2Lim Hong Ye @ Hugo
Co-supervised with Dr Benoit Goossens and Miss Penny Gardner

Hugo is investigating the distribution of the only wild bovid in Borneo, the banteng, listed by IUCN as endangered. Hugo will map banteng specifically in relation to human disturbance events.


Undergraduate students (2014-2015)

Prescilla Jane Peter – responses of ants and termites to habitat degradation

Hoo Sie Teng – shifts in vertical stratification of canopy and ground litter ants with habitat fragmentation

Wong Yan Theng – effects of logging and conversion to oil palm on ant scavenging activity

Lee Zi Shang – altitudinal stratification of ant communities

Yu Shi Sang – altitudinal stratification of ant communities

Hoe Kahyie – altitudinal stratification of ant-mediated nutrient redistribution


Local Collaborators

Fiffy Hanisdah Saikim (Institute for Tropical Biology and Conservation, Universiti Malaysia Sabah)

Lam Nyee Fan (Institute for Tropical Biology and Conservation, Universiti Malaysia Sabah)

Musri Ismenyah (Faculty of Science and Natural Resources, Universiti Malaysia Sabah)

Suzan Benedick (School of Sustainable Agriculture, Universiti Malaysia Sabah)


International Collaborators

Paul Eggleton (Natural History Museum, London, UK)

Rob Ewers (Imperial College London, UK)

Tom Fayle (Czech Academy of Sciences, Czech Republic and Imperial College London, UK)

William Foster (University of Cambridge, UK)

Roger Kitching (Griffith University, Australia)

Vojtech Novotny (University of South Bohemia and Czech Academy of Sciences, Czech Republic)

Kate Parr (University of Liverpool, UK)

Nigel Stork (Griffith University, Australia)

Ed Turner (University of Cambridge, UK)


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