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Skip to Search Results- 1527Biological Sciences, Department of
- 870Biological Sciences, Department of/Journal Articles (Biological Sciences)
- 419Biological Sciences, Department of/BioSci OER
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- 109Mathematical and Statistical Sciences, Department of
- 109Mathematical and Statistical Sciences, Department of/Research Publications (Mathematical and Statistical Sciences)
- 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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2013-01-01
Krkošek, M., Ashander, J., Lewis, Mark A., Frazer, N.
The exchange of native pathogens between wild and domesticated animals can lead to novel disease threats to wildlife. However, the dynamics of wild host-parasite systems exposed to a reservoir of domesticated hosts are not well understood. A simple mathematical model reveals that the spill-back...
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2012-01-01
Poulin, R., Connors, B. M., Krkosek, M., Lewis, Mark A.
Allee effects are thought to mediate the dynamics of population colonization, particularly for invasive species. However, Allee effects acting on parasites have rarely been considered in the analogous process of infectious disease establishment and spread. We studied the colonization of...
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2001-01-01
Holt, R. D., Lewis, Mark A., Keitt, T. H.
All species’ ranges are the result of successful past invasions. Thus, models of species’ invasions and their failure can provide insight into the formation of a species’ geographic range. Here, we study the properties of invasion models when a species cannot persist below a critical population...
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1990
Sperling, F. A. H., Spence, J. R.
Five species of Limnoporus Stål (L. canaliculatus [Say], L. dissortis [Drake and Harris], L. nearcticus [Kelton], L. notabilis [Drake and Hottes], and L. rufoscutellatus [Latreille]) were each sampled at 20 electrophoretic loci. Twofold differences among species in mean heterozygosity appear to...
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2000
Keyghobadi, N., Roland, J., Fownes, S.
We used mark-recapture methods to estimate the number of Parnssius smintheus (Papilionidae) butterflies moving among 20 alpine meadows separated by varying amounts of forest along the east slope of the Rocky Mountains in Alberta, Canada. We combined generalized additive models and generalized...
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1980
Glamm, A. B., Swanson, C. A., Borchers-Zampini, C., Hoddinott, J.
Bean plants, trimmed to a simplified “double source, double sink” translocation system (the paired primary leaves serving as the double source and the paired lateral leaflets of the immature first trifoliate leaf as the double sink) were used to study the magnitude and short-term time course of...
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Alternative Requirements for Vestigial, Scalloped, and Dmef2 during Muscle Differentiation in Drosophila melanogaster
Download2009
Bell, J. B., Deng, H., Simmonds, A. J., Hughes, S. C.
Abstract: Vertebrate development requires the activity of the myocyte enhancer factor 2 (mef2) gene family for muscle cell specification and subsequent differentiation. Additionally, several muscle-specific functions of MEF2 family proteins require binding additional cofactors including members...
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Amino acid polymorphisms in strictly conserved domains of a P-type ATPase HMA5 are involved in the mechanism of copper tolerance variation in Arabidopsis
Download2008
Kimura, K., Southron-Francis, J. L., Iuchi, S., Furuzawa, A., Taylor, G. J., Kobayashi, Y., Koyama, H., Kobayashi, M., Kuroda, K.
Copper (Cu) is an essential element in plant nutrition, but it inhibits the growth of roots at low concentrations. Accessions of Arabidopsis ( Arabidopsis thaliana) vary in their tolerance to Cu. To understand the molecular mechanism of Cu tolerance in Arabidopsis, we performed quantitative trait...
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Amino Acid Utilization in Seeds of Loblolly Pine during Germination and Early Seedling Growth: I. Arginine and Arginase Activity
Download1997
Abstract: The mobilization and utilization of the major storage proteins in loblolly pine (Pinus taeda L.) seeds following imbibition were investigated. Most of the seed protein reserves were contained within the megagametophyte. Breakdown of these proteins occurred primarily following radicle...
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Amplified mitochondrial DNA as a diagnostic marker for species of conifer-feeding Choristoneura (Lepidoptera: Tortricidae)
Download1995
Hickey, D. A., Sperling, F. A. H.
Abstract: We describe a method for identifying conifer-feeding species and lineages of Choristoneura Lederer in Canada and Alaska. The method relies on amplification of mitochondrial (mt) DNA by the polymerase chain reaction (PCR); amplified DNA is then digested with restriction enzymes to give...