Plant-animal interactions in tropical forests- especially seed dispersal, secondary seed dispersal and pollination. For example how different primate species disperse seed and what happens to this seed when their primary disperser becomes rare or goes extinct.
Understanding the evolution of unusual plant breeding systems in tropical trees. For example the evolution of female sterility in the legume Anthonotha noldeae.
Forest restoration- exploration of management techniques to promote forest restoration in Afromontane environments.
The role of hybridisation and speciation in the evolution of invasiveness in plants. In New Zealand invasive plants are a major contributor to biodiversity loss. What makes some species so invasive? Do they evolve this ability through hybridisation after arrival in NZ?
- Chapman JD. and Chapman HM. (2001) The forests of Taraba and Adamawa States, Nigeria. An ecological account and Plant Species Checklist. Christchurch: New Zealand. 221.
- Islam R., Howlett BG., Chapman H., Haque MA. and Ahmad M. (2022) The value of insect pollination to yield of oilseed rape (Brassica rapa) in Bangladesh. Journal of Asia-Pacific Entomology 25(1) http://dx.doi.org/10.1016/j.aspen.2021.11.005.
- Abiem I., Dickie I., Kenfack D. and Chapman H. (2021) Conspecific negative density dependence does not explain coexistence in a tropical Afromontane forest. Journal of Vegetation Science 32(1) http://dx.doi.org/10.1111/jvs.12990.
- Chapman H., Agaldo J. and Christianini A. (2021) Interactions between ants and non-myrmecochorous diaspores in a West African montane landscape. Journal of Tropical Ecology http://dx.doi.org/10.1017/S0266467420000231.
- Cheek M., Onana JM. and Chapman HM. (2021) The montane trees of the Cameroon Highlands, West-Central Africa, with Deinbollia onanae sp. Nov. (Sapindaceae), a new primate-dispersed, Endangered species. PeerJ 9 http://dx.doi.org/10.7717/peerj.11036.