Time filter

Source Type

Moose Jaw, Canada

Phillips I.D.,Integrated Quality | Phillips I.D.,University of Saskatchewan | Parker D.,AquaTax Consulting and 1204 Main Street | Hoemsen B.M.,University of Saskatchewan | And 2 more authors.
Western North American Naturalist | Year: 2013

During research on brook trout (Salvelinus fontinalis [Mitchill]), we collected larval and pupal specimens of the midge Odontomesa fulva (Kieffer) (Diptera: Chironomidae) from Pine Cree Creek, in the Cypress Hills area of the Northern Great Plains of Saskatchewan, Canada. This record is the first observation of O. fulva from the province. The larvae of the population of O. fulva in this study prefer shallow pools in this first-order, cold water stream. The species displays a univoltine emergence phenology. This range extension of O. fulva highlights and reinforces the importance of the Cypress Hills to the unique aquatic faunal biodiversity and ecology of Saskatchewan and the Northern Great Plains.

Bell A.J.,TRoutreach Saskatchewan | Phillips I.D.,TRoutreach Saskatchewan | Phillips I.D.,University of Saskatchewan | Phillips I.D.,Integrated Quality | And 4 more authors.
Environmental Entomology | Year: 2014

Captures of insects in pitfall traps are affected by features of trap design that may confound the interpretation of data. One such feature is a lid suspended over the opening of the trap to exclude debris and rainwater. In this study, we tested whether use of these lids affected captures of carabid beetles by altering the light conditions at the opening to the trap. In one experiment, we examined the effects of lid transparency (opaque, semitransparent, or transparent) on catch rates. In a second experiment, we manipulated the heights (high, medium, or low) of vegetation adjacent to the traps to test for lid transparency and vegetation height interactions. We found that significantly more carabids were captured with use of transparent lids compared with other lid transparencies. Fewest Agonum cupreum Dejean, 1831, were captured with use of opaque lids. No other effects were detected. Given these results, we advocate the use of transparent lids, which provide the benefits of traditional opaque lids while minimizing the effects of lid use on light conditions at the opening to the trap. © 2014 Entomological Society of America.

Discover hidden collaborations