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- 3Food web
- 1Arthropod community dynamics
- 1Bacillus thuringiensis
- 1Biological control
- 1Ecological statistics
- 1Barrion, Alberto, T.
- 1Cohen, Michael, B.
- 1Fortin, Barbra Linda
- 1Gaolach, Bradley
- 1Gingras, B. A.
- 1Klatt, P. H.
Effects of Bacillus thuringiensis on non-target herbivore and natural enemy assemblages in tropical irrigated riceDownload
Endotoxins from Bacillus thuringiensis (Bt) produced in transgenic pest-resistant Bt crops are generally not toxic to predatory and parasitic arthropods. However, elimination of Bt-susceptible prey and hosts in Bt crops could reduce predator and parasitoid abundance and thereby disrupt biological...
I investigated, water, invertebrates and fishes from lakes in Banff National Park and Kananaskis Country, Alberta for selenium (Se), an element known to be toxic to vertebrates. At some depths, Se concentrations in sediment exceeded recognized thresholds for bird and fish reproductive...
Trophic Relations of the Red-Necked Grebe on Lakes in the Western Boreal Forest: A Stable-Isotope Analysis.Download
We compared trophic ecology of grebes inferred from stable-isotope analysis to that from gut contents, and compared isotopic ratios of Red-necked Grebes (Podiceps grisegena) from lakes differing in their food webs. Analyses of different grebe tissues (egg yolk and albumen, pectoral and leg...