Research

I sample soils from wetlands across the province of Ontario to determine their carbon content. Sites include Sphagnum-dominated fens, Carex-dominated fens, bogs, marshes, and restored marshes. In addition to coring, I use eddy-covariance towers and closed chambers to measure CO2 and CH4 in the atmosphere of wetlands.

By combining data loggers, iButtons, and weather stations with a multitude of instruments, we have been monitoring two peatland sites in Ontario since 2011. Measurements are taken from soils (e.g., temperature, moisture, nutrients), waters (e.g., water table level, temperature) and air (e.g., wind speed and direction, temperature).

To date,  124,456 valid species are known to Brazil, its huge majority of arthropods (about 85% with almost 94,000 species!) and chordates (about 10%). All other species are members of other invertebrate groups. In general, except for some phyla, the number of species of the large majority of phyla exceeded those disclosed in recent estimates. I am responsible for maintaining and updating the checklist of oribatid mite species (Acari: Oribatida) for the country. You can find the catalogue here.