Powell, S. (In press) How ecology shapes caste evolution: Linking resource use, morphology, performance, and fitness in a superorganism. Journal of Evolutionary Biology.
O’Donnell, S., Lattke, J., Powell, S. & Kaspari, M. (In Press). Species and site differences in Neotropical army ant emigration behavior. Ecological Entomology.
Dornhaus, A. & Powell, S. (In Press). Foraging and defence strategies in ants. In: Ant Ecology (Ed. Lach, L., Parr, C. and Abbott, K.) London, United Kingdom: Oxford University Press.
Powell, S. (2008). Ecological specialization and the evolution of a specialized caste in Cephalotes ants. Functional Ecology, 22: 902–911. [Request PDF]
Powell, S. & Baker, B. (2008). Os grandes predadores dos neotrópicos: comportamento, dieta e impacto das formigas de correição (Ecitoninae). In: Insetos Sociais da Biologia à Aplicação (eds Ferreira Vilela, I. A. dos Santos, J. E. Serrão, J. H. Schoereder, J. Lino-Neto & L. A. de O. Campos), pp. 18-37. Universidade Federal de Viçosa, Viçosa, Brazil. [Request PDF] (English translation available)
Hurlbert, A. H., Ballantyne, F. IV, & Powell, S. (2008). Shaking a leg and hot to trot: the effects of body size and temperature on running speed in ants. Ecological Entomology, 33: 144-154. [Request PDF]
Powell, S. & Franks, N. R. (2007). How a few help all: Living pothole plugs speed prey-delivery in the army ant Eciton burchellii. Animal Behaviour, 73: 1067-1076. [PDF]
O’Donnell, S., Lattke, J., Powell, S. & Kaspari, M. (2007). Army ants in four forests: Geographic variation in raid rates and species abundance. Journal of Animal Ecology, 76: 580-589. [Request PDF]
Powell, S. & Franks, N. R. (2006). Ecology and the evolution of worker morphological diversity: A comparative analysis with Eciton army ants. Functional Ecology, 20: 1105–1114. [Request PDF]
Kronauer, D. J. C., Berghoff, S. M., Powell, S., Denny, A. J., Edwards, K. J., Franks, N. R., & Boomsma, J. J. (2006). A reassessment of the mating system characteristics of the army ant Eciton burchellii. Naturwissenschaften, 93: 402–406. [Request PDF]
Powell, S. & Franks, N. R. (2005). Caste evolution and ecology: A special worker for novel prey. Proceedings of the Royal Society B: Biological Sciences, 272: 2173–2180. [Request PDF]
Powell, S. & Clark, E. (2004). Combat between large derived societies: A subterranean army ant established as a predator of mature leaf-cutting ant colonies. Insectes Sociaux, 51: 342-351. [PDF]
Denny, A. J., Franks, N. R., Powell, S. & Edwards K. J. (2004). Exceptionally high levels of multiple mating in an army ant. Naturwissenschaften, 91: 396–399. [Request PDF]
Powell, S. & Tschinkel, W. R. (1999). Ritualized conflict in Odontomachus brunneus and the generation of interaction-based task allocation: a new organizational mechanism in ants. Animal Behaviour, 58: 965–972. [PDF]
Submitted and draft manuscripts
Powell, S. & Vasconcelos, H. L. Costa, A. N., Lopes, C. T. Canopy connectivity and the availability of heterogeneous nesting resources affect the diversity and structure of arboreal ant communities. (In preparation for Ecology).
Powell, S. & Vasconcelos, H. L. Ecological specialization, nest site limitation and competition drive the nesting dynamics of canopy ants. (In preparation for Functional Ecology).
Powell, S. & Del-Claro, K. Obligate information parasitism and behavioral mimicry by a remarkable new Cephalotes species from the Brazilian savannah (In preparation for Biological Journal of the Linnean Society)
Powell, S. Detailing the structural defenses of a superorganism: Soldier production and spatial allocation in the multiple-nest arboreal ant Cephalotes persimilis. (In preparation for Behavioral Ecology and Sociobiology).
... and more on the way
Coverage in the Popular Science Press
Science online article on plugging behaviour in the army ant Eciton burchellii
BBC Science/Nature online article on plugging behaviour in the army ant Eciton burchellii
BBC Radio Five Live interview on plugging behaviour in the army ant Eciton burchellii
Quirks & Quarks radio interview (given by my co-author Nigel Franks) on plugging behaviour in the army ant Eciton burchellii
Geo Magazine full length article on army ants, with a focus on my work (June 2004, pp 70-88).
