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- 870Biological Sciences, Department of/Journal Articles (Biological Sciences)
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- 419University of Alberta, Department of Biological Sciences
- 138Sawchuk, Matthew
- 81Mark A. Lewis
- 52Lewis, Mark A.
- 52Stockey, R.A.
- 23Wishart, D.S.
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Aquaculture-induced changes to dynamics of a migratory host and specialist parasite: a case study of pink salmon and sea lice
Download2012-01-01
Ashander, Jaime, Lewis, Mark A., Krkošek, Martin
Exchange of diseases between domesticated and wild animals is a rising concern for conservation. In the ocean, many species display life histories that separate juveniles from adults. For pink salmon (Oncorhynchus gorbuscha) and parasitic sea lice (Lepeophtheirus salmonis), infection of juvenile...
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2009-07-29
Benedetti, Eleonora, El-Sawaf, Gamal, Maria Stella Mura, Ghazal, Abeer, Mahmoud El Zalabani, Elghazouly, Karim, Arpino, Carla, Helaly, Ghada, Francesca Farchi, Andrea Soddu, Venturi, Giulietta, Marchi, Antonella, Denise Cacciatore, Fiorentini, Cristiano, Maria Grazia Ciufolini, Giovanni Rezza, Madeddu, Giordano
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Are boreal birds resilient to forest fragmentation? An experimental study of short-term community responses
Download1997
Schmiegelow, F. K. A., Machtans, C. S., Hannon, S. J.
Abstract: We studied the effect of habitat fragmentation on the richness, diversity, turnover, and abundance of bleeding bird communities in old, boreal mixed-wood forest by creating isolated and connected forest fragments of 1, 10, 40, and 100 ha. Connected fragments were linked by 100 m wide...
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Are Point Counts of Boreal Songbirds Reliable Proxies for More Intensive Abundance Estimators?
Download2006
Villard, M.-A., Schmiegelow, F.K.A., Hannon, S.J., Toms, J.D.
Point counts are often used to provide information on abundance of songbirds. If data from point counts are to be compared in space or time, however, any bias in the estimate should be consistent and linearly related to the true abundance. Several studies have suggested that this assumption may...
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Are the “ seeds ” of spatial variation in cyclic dynamics apparent in spatially-replicated short time-series ? An example from the forest tent caterpillar
Download2005
Variation in the pattern of dynamics of the forest tent caterpillar was assessed over a 13-year interval of population collapse and increase among 68 sites within a 420 km2 region. Patterns of population change were compared with the level of forest fragmentation among sites, and interpreted in...
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Aroid Seeds from the Middle Eocene Princeton Chert ( Keratosperma allenbyense , Araceae): Comparisons with Extant Lasioideae.
Download2003
A reinvestigation of more than 200 new specimens of Keratosperma allenbyense Cevallos-Ferriz et Stockey from the Middle Eocene Princeton chert allows a more detailed comparison with living Araceae and provides evidence for the evolution of the lasioid clade. The anacampylotropous seeds possess a...
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2007
Greif, M.D., Tsuneda, A., Currah, R.S., Gibas, C.F.C.
Catinella olivacea is a discomycetous fungus often found fruiting within cavities in rotting logs. Because this habitat would lack the air currents upon which discomycete species normally rely for the dispersal of their forcibly ejected ascospores, we suspected an alternative disseminative...
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Ascomatal Morphogenesis in Myxotrichum arcticum Supports the Derivation of the Myxotrichaceae from a Discomycetous Ancestor
Download2004
Electron microscopy shows that ascomata of Myxotricum arcticum bear a striking resemblance to discocarps in morphogenesis and in previously overlooked aspects of gross morphology. Although mature ascomata of M. arcticum superficially resemble reticuloperidial cleistothecia common in the...
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Assessing the mating status of male obliquebanded leafrollers Choristoneura rosaceana (Lepidoptera: Tortricidae) by dissection of male and female moths
Download2003
Borden, J. H., Delury, L. E., Judd, G. J. R., Evenden, M. L.
Abstract: We tested several methods for assessing the mating status of male obliquebanded leafrollers, Choristoneura rosaceana (Harris) (Lepidoptera: Tortricidae). In four experiments, we established that the technique developed to determine mating status of male spruce budworms, Choristoneura...
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Assessment of commercially available pheromone lures for monitoring diamondback moth (Lepidoptera: Plutellidae) in canola
Download2010
Abstract: Sex pheromone monitoring lures from five different commercial sources were compared for their attractiveness to male diamondback moth, Plutella xylostella L. (Lepidoptera: Plutellidae) in canola, Brassica napus L., fields in western Canada. Lures that had the highest pheromone release...