Qualifications & Awards
I work at all levels in freshwater ecosystems, ranging from population and community ecology through to ecosystem and aquatic landscape ecology, including work on fish and invertebrates in streams, lakes and wetlands. I’ve been particularly interested in aquatic food webs, predator-prey interactions, the influences of flow-related habitat size and disturbance in rivers, exchanges between aquatic and terrestrial ecosystems, and restoration and rehabilitation. This has included long-running studies in the upper Waimakariri River system in Canterbury, at the Rocky Mountain Biological Laboratory in Colorado and in agricultural streams of the Canterbury Plains. Important aspects include investigations of:
- effects of non-native trout on galaxiid fishes,
- riverscape configuration influences on fish and other aquatic biodiversity,
- changes in river habitat size (e.g. through alteration in flows) on river food webs,
- habitat drying on pond communities,
- connections between aquatic and terrestrial ecosystems (cross-ecosystem influences)
-restoration of agricultural streams in the Canterbury Waterway Rehabilitation Experiment (CAREX).
See the FERG (Freshwater Ecology Research Group) pages for more details on this research and my EcologyLive website (see link under Resources above) for photographs, stories and information of interest to a wider audience.
- Boddy NC. and McIntosh AR. (2017) Temperature, invaders and patchy habitat interact to limit the distribution of a vulnerable freshwater fish. Austral Ecology 42(4): 456-467. http://dx.doi.org/10.1111/aec.12463.
- Campbell RE. and McIntosh AR. (2017) Space–time interactions and invertebrate assemblage change in stream networks. Austral Ecology 42(2): 227-237. http://dx.doi.org/10.1111/aec.12425.
- Hunt SK., Galatowitsch ML. and McIntosh AR. (2017) Interactive effects of land use, temperature, and predators determine native and invasive mosquito distributions. Freshwater Biology http://dx.doi.org/10.1111/fwb.12967.
- O'Brien JM., Warburton HJ., Elizabeth Graham S., Franklin HM., Febria CM., Hogsden KL., Harding JS. and McIntosh AR. (2017) Leaf litter additions enhance stream metabolism, denitrification, and restoration prospects for agricultural catchments. Ecosphere 8(11) http://dx.doi.org/10.1002/ecs2.2018.
- White RSA., McHugh PA., Glover CN. and McIntosh AR. (2017) Metabolism drives distribution and abundance in extremophile fish. PLoS ONE 12(11) http://dx.doi.org/10.1371/journal.pone.0187597.