3 dossier(s) trouvé(s) portant l’étiquette "food chain" (les projets pluriannuels sont regroupés): Vous ne trouvez pas les résultats souhaités? Essayez la recherche avancée..
chercheur principal:Katz, Sharon Année(s) de permis:
2009
Résumé:
The objectives of this study are: (a) To determine whether brominated flame retardants (BFRs), current use pesticides (CUPs), perfluorinated compounds (PFCs), and mercury bioaccumulate using the vegetation-caribou-wolf food chain and the Bathurst caribou herd as a model; (b) To explore possible sources of lead contamination in the Bathurst herd caribou; (c) To elucidate the pathway of lead uptake ...
chercheur principal:Katz, Sharon Année(s) de permis:
2008
Résumé:
The objective of this research is to obtain traditional knowledge (TK) about: the feeding and preying habits of wolves; the relative importance of caribou in wolves' diet; the composition and seasonality of wolves diet; wolves’ prey preference; the composition and seasonality of caribou diet; caribou and wolf and oral history information, and compare TK from different regions.
The Gwich'in Soci...
chercheur principal:Thomas, Patricia Année(s) de permis:
1991
Résumé:
The study will compare two arctic food chains, namely, lichen-caribou- wolf and lichen-caribou-human to investigate the accumulation and transfer of Polonium-210 and Lead-210. Background levels of radiation will be measured by collecting samples of lichen, caribou, wolf and human placenta....