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All Outputs (4)

Multi‐Species Impacts of Invasive Opuntia Cacti on Mammal Habitat Use (2025)
Journal Article
Stewart, P. S., Stewart, P. S., Oduor, A. M. O., Hill, R. A., Oduor, A. M. O., Whittingham, M. J., Stephens, P. A., Whittingham, M. J., & Dawson, W. (2025). Multi‐Species Impacts of Invasive Opuntia Cacti on Mammal Habitat Use. Ecology Letters, 28(7), Article e70163. https://doi.org/10.1111/ele.70163

Biological invasions impact ecosystems worldwide, including through changing the behaviour of native species. Here, we used camera traps to investigate the effects of invasive Opuntia spp. on the habitat use of 12 mammal species in Laikipia County, K... Read More about Multi‐Species Impacts of Invasive Opuntia Cacti on Mammal Habitat Use.

Model Selection in Occupancy Models: Inference versus Prediction (2023)
Journal Article
Stewart, P. S., Stephens, P. A., Hill, R. A., Whittingham, M. J., & Dawson, W. (2023). Model Selection in Occupancy Models: Inference versus Prediction. Ecology, 104(3), Article e3942. https://doi.org/10.1002/ecy.3942

Occupancy models are a vital tool for ecologists studying the patterns and drivers of species occurrence, but their use often involves selecting among models with different sets of occupancy and detection covariates. The information-theoretic approac... Read More about Model Selection in Occupancy Models: Inference versus Prediction.

Wild herbivores enhance resistance to invasion by exotic cacti in an African savanna (2022)
Journal Article
Wells, H. B., Crego, R. D., Alston, J. M., Ndung'u, S. K., Khasoha, L. M., Reed, C. G., Hassan, A. A., Kurukura, S., Ekadeli, J., Namoni, M., Stewart, P. S., Kimuyu, D. M., Wolf, A. A., Young, T. P., Kartzinel, T. R., Palmer, T. M., Goheen, J. R., & Pringle, R. M. (2023). Wild herbivores enhance resistance to invasion by exotic cacti in an African savanna. Journal of Ecology, 111(1), https://doi.org/10.1111/1365-2745.14010

Whether wild herbivores confer biotic resistance to invasion by exotic plants remains a key question in ecology. There is evidence that wild herbivores can impede invasion by exotic plants, but it is unclear whether and how this generalises across ec... Read More about Wild herbivores enhance resistance to invasion by exotic cacti in an African savanna.

Global impacts of climate change on avian functional diversity (2022)
Journal Article
Stewart, P. S., Voskamp, A., Santini, L., Biber, M. F., Devenish, A. J., Hof, C., Willis, S. G., & Tobias, J. A. (2022). Global impacts of climate change on avian functional diversity. Ecology Letters, 25(3), 673-685. https://doi.org/10.1111/ele.13830

Climate change is predicted to drive geographical range shifts, leading to fluctuations in species richness (SR) worldwide. However, the effect of these changes on functional diversity (FD) remains unclear, in part because comprehensive species-level... Read More about Global impacts of climate change on avian functional diversity.