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.

PhD students

Siti Asmah Muslim
asmah_muslim06@yahoo.comAsmah 1

Asmah is interested in insect ecology, in particular in the way that species are affected by disturbance of forest and expansion of agriculture. Currently, she focuses on studying impacts of forest fragmentation, land-use change and El Nino on ant communities in tropical rainforest. The work funded by UMSGreat, the Czech Science Foundation and the South East Asia Rainforest Research Partnership, SEARRP.


Masters students

Koid Qian QunYvonne2
Co-supervised by Prof David Edwards

Yvonne is working on the impacts of climber cutting on canopy and leaf litter ant communities. She will be sampling ants in areas with different experimental intensities of climber cutting in Malua Forest Reserve.




Wanji 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.

Fulbright Research Scholar


Yesenia Valverde

Yesenia is interested in how human-induced shifts in plant-animal interactions can lead to changes in community structure and ecosystem functioning. Supported by a 2019-2020 Fulbright Research Study grant, she will be studying the dynamics between land use change and myrmecochory, or ant-mediated seed dispersal, in the SAFE Project, Maliau Basin, and Danum Valley.


Past group members

AmyAmelia Joyce Philip (Masters)

Amy’s work focused on the impacts of canopy simplification due to logging in terms of vertical stratification of ants. She also investigated the differences in vulnerability between different microhabitats to habitat degradation. This work was funded by the Czech Science Foundation. Amy is now studying for her PhD at the University of South Bohemia, Czech Republic.

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

Hugo investigated the distribution of the only wild bovid in Borneo, the banteng, listed by IUCN as endangered. Hugo mapped banteng specifically in relation to human disturbance events.

Prescilla Jane Peter (Undergraduate project 2014-2015) – responses of ants and termites to habitat degradation

Hoo Sie Teng (Undergraduate project 2014-2015) – shifts in vertical stratification of canopy and ground litter ants with habitat fragmentation

Wong Yan Theng (Undergraduate project 2014-2015) – effects of logging and conversion to oil palm on ant scavenging activity

Lee Zi Shang (Undergraduate project 2014-2015) – altitudinal stratification of ant communities

Yu Shi Sang (Undergraduate project 2014-2015) – altitudinal stratification of ant communities

Hoe Kahyie (Undergraduate project 2014-2015) – altitudinal stratification of ant-mediated nutrient redistribution


Malaysian 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)

Hasber Salim (School of Biological Sciences, Universiti of Science Malaysia)


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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