BSc (Hons) University of Guelph (2002)
PhD Rhodes University (2008)
Cellphone +27 83 544 7645
FAX +27 46 622-8959
Stable isotopes in trophic ecology
Alternative stable states
Nitrogen dynamics in aquatic systems
American Society of Limnology and Oceanography
American Geophysical Union
Zoological Society of Southern Africa
1. Roy Jones (PhD, Rhodes University) – Aquatic invasions of the Nseleni river system: causes, consequences and control.
1. Jeremiah Plaas-Johnson (MSc, Rhodes University) - The trophic ecology of parrotfish of Zanzibar: application of stable isotope analysis.
1. Plass-Johnson JG, McQuaid CD, Hill JM (2012) Stable isotope analysis indicates a lack of inter- and intraspecific dietary redundancy among ecologically important coral reef fishes. Coral Reefs (In Press).
2. Hill JM, Hill MP, Kaehler (2012) Baseline isotope data for Spirodela sp.: Nutrient differentiation in aquatic systems. Water Research 46: 3353-3562.
3. Sheppard JN, Whitfield AK, Cowley PD, Hill JM (2012)Effects of altered submerged macrophyte bed cover on the omnivorous Cape stumpnose Rhabdosargus holubi in a South African estuary. Journal of Fish Biology 80: 705-712.
4. Kohler SA, Connan M, Hill JM, Mablouké, Ludynia K, Kepmer J, Huisamen J, Underhill LG, Cherel Y, McQuaid CD, Jaquemet S (2011) Geographical variations in the trophic ecology of a rocky shore predator, the African Black Oystercatcher, along the southern African coastline. Marine Ecology Progress Series 435: 235–249.
6. Porri F, Hill JM, McQuaid CD (2011) Associations in ephemeral systems: do close links between sandhoppers and beach wrack reflect trophic relationships? Marine Ecology Progress Series 426: 253–262.
7. Hill JM, McQuaid CD (2011) Stable isotope methods: effect of gut content on isotopic ratios of zooplankton. Estuarine Coastal and Shelf Science 92: 480-485.
8. Hill JM, McQuaid CD (2009). Effects of food quality on tissue specific isotope ratios in the mussel Perna perna. Hydrobiologia 635: 81-94.
9. Hill JM, McQuaid CD (2009). Variability in the fractionation of stable isotopes during degradation of two intertidal red algae. Estuarine, Coastal and Shelf Science 82: 397–405.
10. Hill JM, McQuaid CD (2008). δ13C and δ15N biogeographic trends in rocky intertidal communities along the coast of South Africa: Evidence of strong environmental signatures. Estuarine, Coastal and Shelf Science 80: 261-268.
11. Hill JM, McQuaid CD, Kaehler S (2008). Temporal isotopic variation in suspended particulate matter suggests strong links to nearshore hydrography and heavy dependence of mussels on very nearshore production. Marine Biology 154(5): 899-909.
12. Hill JM, McQuaid CD, Kaehler S (2006). Biogeographic and nearshore/offshore trends in isotope ratios of intertidal mussels and their food sources around the coast of southern Africa. Marine Ecology Progress Series 318: 63-73.