We studied the timing of reproductive maturity of cherry fruit fly, Rhagoletis cingulata (Loew), a key pest of sweet and tart cherries in the eastern United States. To determine when cherry fruit fly females become reproductively mature in managed and natural habitats, we deployed traps in sweet and tart cherry orchards and nearby stands of the ancestral host tree, black cherry. Flies were remo...

Studies of community assembly have emphasized snapshot comparisons of spatially replicated samples from "natural" assemblages. Agro-ecosystems are characterized by relatively little habitat heterogeneity and no dispersal barriers for actively flying insects. Therefore, dynamic patterns of species segregation and aggregation are more likely to reflect the direct or indirect effects of species in...

switching of polarization in thin films of vinylidene fluoride oligomers" (2014). Stephen Ducharme Publications. 101.

Purpose: The cutoff values currently used to categorize tumor response to therapy are neither biologically based nor tailored for measurement reproducibility with contemporary imaging modalities. Sources and magnitudes of discordance in response assessment in metastatic colorectal cancer (mCRC) are unknown. Experimental Design: A subset of patients’ CT images of chest, abdomen, and pelvis were ...

Wide-ranging species cannot persist in reserves alone. Consequently, there is growing interest in the conservation value of agricultural lands that separate or buffer natural areas. The value of agricultural lands for wildlife habitat and connectivity varies as a function of the crop type and landscape context, and quantifying these differences will improve our ability to manage these lands mor...

During the past year, we evaluated the fitness and likelihood of establishing the Guthion-resistant strain of walnut aphid parasite, Trioxys pallidus, in California walnut orchards by conducting a combination of laboratory and field experiments. We compared the stability of the azinphosmethyl resistance in the resistant strain and in progeny derived from crossing the resistant and the base colo...