Greyling MD, Van Aarde RJ, Ferreira SM: 2001. Seasonal changes in habitat preferences of two closely related millipede species. African Journal of Ecology, 39, pp 51-58.

Kirkman SP, Wallace E, Van Aarde RJ, Potgieter HC: 2001. Steroidogenic correlates of pregnancy in the rock hyrax (Procavia capensis). Life Sciences, 68, pp 2061-2072.

Lamb (Fincham) CE, Van Aarde RJ: 2001. Maternal dietary protein intake and sex-specific investment in Mastomys coucha (Rodentia: Muridae). Journal of Zoology, 253, pp 505-512.

Pimm SL, Van Aarde RJ: 2001. African elephants and immunocontraception. Nature, 411, pp 766.

Smit A, Van Aarde RJ: 2001. The influence of millipedes on selected soil elements: A microcosm study on three millipede species of coastal sand dunes. Functional Ecology, 15, pp 51-59.

Thompson M, Vink ER, Fairbanks D, Balance A, Shackleton CM: 2001. Comparison of extent and transformation of South Africa's woodland biome from two national databases. South African Journal of Science, 97, pp 179-182.

Wilkinson IS, Van Aarde RJ: 2001. Investment in sons and daughters by southern elephant seals, Mirounga leonina, at Marion Island. Marine Mammal Science, 17(4), pp 873-887.