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Skip to Search Results- 2Lewis, Mark A.
- 1Bampfylde, Caroline J.
- 1Derocher, A.E.
- 1Jerde, Christopher L.
- 1Lewis, M.A.
- 1Mark A. Lewis
- 4Biological Sciences, Department of
- 4Biological Sciences, Department of/Journal Articles (Biological Sciences)
- 2Graduate and Postdoctoral Studies (GPS), Faculty of
- 2Graduate and Postdoctoral Studies (GPS), Faculty of/Theses and Dissertations
- 2Mathematical and Statistical Sciences, Department of
- 2Mathematical and Statistical Sciences, Department of/Research Publications (Mathematical and Statistical Sciences)
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A Pilot Study to Determine the Consistency of Simultaneous Sleep Actigraphy Measurements Comparing All Four Limbs of Patients with Parkinson Disease
DownloadFall 2018
Background: Wrist actigraphy is a form of objective sleep measurement that has gained a central role in research and clinical settings. Although actigraph data is available for sleep disorders concerning medical and neurobehavioral disorders, the literature identifies that sensitivity of...
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2009-01-01
Bampfylde, Caroline J., Jerde, Christopher L., Lewis, Mark A.
We formalize the establishment process for a sexual, semelparous organism through the use of hierarchical probability modeling from parameters of survival, probability of being female, probability of being fertilized, and expected fecundity.We show how to calculate the expected per capita growth...
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1996-01-01
Mark Kot, Mark A. Lewis, P. van den Driessch
Models that describe the spread of invading organisms often assume that the dispersal distances of propagules are normally distributed. In contrast, measured dispersal curves are typically leptokurtic, not normal. In this paper, we consider a class of models, integrodifference equations, that...
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2014
Lewis, M.A., Derocher, A.E., Molnár, P.K.
Allee effects are an important component in the population dynamics of numerous species. Accounting for these Allee effects in population viability analyses generally requires estimates of low-density population growth rates, but such data are unavailable for most species and particularly...
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2007
Warren, S. A., Yiannakoulias, N., Svenson, L. W., Schopflocher, D. P.
Our objective is to examine how persons diagnosed with Multiple Sclerosis (MS) and Parkinson's disease (PD) change residence following disease onset. We hypothesize that persons choose to change residence (locally or regionally) in different ways depending on whether or not they have been...
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Surrogate markers of progression in Parkinson disease: Correlation between clinical features and neuroimaging
DownloadSpring 2015
Parkinson disease is a progressive neurodegenerative disorder affecting approximately 100,000 Canadians. Loss of dopaminergic neurons in the substantia nigra of the basal ganglia is the prominent pathology associated with many of the motor features that characterise Parkinson disease. Increased...
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Temperature-dependent Allee effects in a stage-structured model for Bythotrephes establishment
Download2011-01-01
Young, J. D., Yan, N. D., Lewis, Mark A., Wittmann, M. J.
Whether the invasive freshwater cladoceran Bythotrephes longimanus can establish after introduction into a water body depends on several biotic and abiotic factors. Among these, water temperature is important because both development rates and mode of reproduction (parthenogenetic or sexual) in...