Search
Now showing items 1-10 of 325
Management of avian botulism and survival of molting mallards
(2002-12-01)
Avian botulism outbreaks are perpetuated by proliferation of toxin producing Clostridium botulinum in bird carcasses and consumption of maggots containing toxin by healthy birds. Removal and disposal of bird carcasses has ...
Relationships between plant productivity and soil conditions in alpine tundra of southern Yukon Territory, Canada
(2012-09-24)
Climate change is predicted to significantly alter ecosystem functioning and species distributions across the globe. Arctic and alpine areas are experiencing a faster rate of temperature increase as compared to other ...
Threat-sensitive learning and generalization of predator recognition by aquatic vertebrates
(2009)
Many prey species lack innate recognition of their potential predators. Hence, learning is required for them to recognize and respond to predation threats. When wild-caught, these same species may show amazing sophistication ...
Carotenoids in the eggs of American coots : associations with size of eggs, local environment and diet
(2005-12-21)
I studied carotenoids in the eggs of American coots (Fulica americana) from 3 study sites in Saskatchewan, Canada. I supplemented two diet types designed to reduce carotenoids in the diet of laying coots to investigate ...
The role of sec24 in protein export from the plant endoplasmic reticulum
(2008)
Plant cells contain multiple mobile Golgi bodies. Golgi bodies receive cargo from specialized subdomains of the endoplasmic reticulum (ER), so-called ER export sites (ERES). How ERES operate in plant cells is largely ...
Parasite-host interactions in an arctic goose colony
(2006-12)
The arctic is currently experiencing some of the greatest rates of warming. Newly emerging diseases in the arctic are of particular interest due to the implications these may have at southern latitudes if temperatures ...
The effects of pathogens, parasites, and familiarity on alarm cell investment in fathead minnows, pimephales promelas
(2005-12-09)
Fishes in the Superorder Ostariophysi have specialized epidermal club cells that contain an alarm substance. Damage to these cells causes the release of the alarm substance which can serve as a useful indicator of predation ...
Morphology and diversity of arbuscular mycorrhizal fungi colonizing roots of dandelion and chive
(2008)
Arbuscular mycorrhizas (AM) are the plant root-fungus interactions that are most widespread mycorrhiza in nature. As classically defined, there are two major AM morphologies named after the plant genera in which they were ...
Molecular and pathological differentiation of colletotrichum truncatum from scentless chamomile and legume crops
(2007-03-15)
The fungus Colletotrichum truncatum is a potential biocontrol agent (BA) against the noxious weed scentless chamomile (Metricaria perforata Mérat; syn.: Tripleurospermum perforatum (Mérat) Lainz) in western Canada. This ...
Food ecology and hunting behaviour of denning arctic foxes at Aberdeen Lake, Northwest Territories
(1972-01)
This study of breeding arctic foxes (Alopex lagopus) and their major prey, the brown lemming (Lemmus trimucronatus) and the Greenland collared lemming (Dicrostonyx groenlandicus), was conducted at Aberdeen Lake, District ...