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., Booker DJ. and McIntosh AR. (2019) Confluence configuration of river networks controls spatial patterns in fish communities. Landscape Ecology 34(1): 187-201. http://dx.doi.org/10.1007/s10980-018-0763-4.
- Collins KE., Febria CM., Warburton HJ., Devlin HS., Hogsden KL., Goeller BC., McIntosh AR. and Harding JS. (2019) Evaluating practical macrophyte control tools on small agricultural waterways in Canterbury, New Zealand. New Zealand Journal of Marine and Freshwater Research 53(2): 182-200. http://dx.doi.org/10.1080/00288330.2018.1487454.
- Eveleens RA., McIntosh AR. and Warburton HJ. (2019) Interactive community responses to disturbance in streams: disturbance history moderates the influence of disturbance types. Oikos http://dx.doi.org/10.1111/oik.05868.
- Goeller BC., Burbery LF., Febria CM., Collins KE., Burrows NJ., Simon KS., Harding JS. and McIntosh AR. (2019) Capacity for bioreactors and riparian rehabilitation to enhance nitrate attenuation in agricultural streams. Ecological Engineering 134: 65-77. http://dx.doi.org/10.1016/j.ecoleng.2019.03.014.
- Goeller BC., Febria CM., Warburton HJ., Hogsden KL., Collins KE., Devlin HS., Harding JS. and McIntosh AR. (2019) Springs drive downstream nitrate export from artificially-drained agricultural headwater catchments. Science of the Total Environment 671: 119-128. http://dx.doi.org/10.1016/j.scitotenv.2019.03.308.