Study systems include
Small mammals (Peromyscus spp., Tamias striatus) and their helminth parasites
Grear DA and PJ Hudson. 2011. The dynamics of macroparasite host-self-infection: a study of the patterns and processes of pinworm (Oxyuridae) aggregation. Parasitology, 138, 619-617. doi: 10.1017/S0031182011000096.
Grear DA, MD Samuel, K Scribner, BV Weckworth, and JA Langenberg. 2010 Influence of genetic relatedness and spatial proximity on CWD transmission among female white-tailed deer. Journal of Applied Ecology, 47, 532-540.
Luong, LT, SE Perkins, DA Grear, A Rizzoli, and PJ Hudson. 2010. The relative importance of host characteristics and co-infectionin generating variation in Heligmosomoides polygyrus fecundity. Parasitology, 137, 1003-1012.
Grear, DA, SE Perkins, and PJ Hudson. 2009. Does elevated testosterone result in increased exposure and transmission of parasites? Ecology Letters, 12, 528-537.
Luong, LT, DA Grear, and PJ Hudson. 2009. Male hosts are responsible for the transmission of a trophically transmitted parasite, Pterygodermatites peromysci to the intermediate host in the absence of sex-biased infection. International Journal for Parasitology, 39, 1263-1268.
I am investigating mechanisms that cause heterogeneities in transmission. These heterogeneities appear to result in key hosts that:
- Harbor a majority of parasites
- Account for a majority of transmission
My research focuses on identifying differences between individuals that create key hosts, including:
- Exposure due to behavior
- Exposure due to body size
- Susceptibility due to immune function
exposure to parasites
I've started my post-doc at CSU! http://rydberg.biology.colostate.edu/ctwebb/News.html