Ryan Bruce Norris

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We carried out a systematic overview using individual patient data from the seven randomised trials that have compared a strategy of initial coronary artery bypass graft (CABG) surgery with one of initial medical therapy to assess the effects on mortality in patients with stable coronary heart disease (stable angina not severe enough to necessitate surgery(More)
S. E. Franks (sfranks@sfu.ca), B. Schwarz, A. Jiménez, R. C. Ydenberg and D. B. Lank, Centre for Wildlife Ecology, Dept of Biological Sciences, Simon Fraser Univ., Burnaby, BC V5A 1S6, Canada. AJ also at: Facultad de Biología, Univ. de La Habana, Havana 10400, Cuba . – D. R. Norris, Dept of Integrative Biology, Univ. of Guelph , Guelph, ON N1G 2W1, Canada.(More)
Costs of reproduction represent a common life-history trade-off. Critical to understanding these costs in migratory species is the ability to track individuals across successive stages of the annual cycle. We assessed the effects of total number of offspring fledged and date of breeding completion on pre-migratory body condition, the schedule of moult and(More)
One of the greatest feats of avian migration is the non-stop crossing of extensive areas of inhospitable habitat such as deserts and seas. Differences in spring and autumn migration routes have been reported in species that cross such barriers, and are thought to have evolved in response to seasonal variation in prevailing wind direction. We tested the(More)
within bird populations, eggs vary extensively in size, shape, and color, but individual females tend to lay eggs that are relatively consistent in most traits. we measured all eggs laid by individual female Savannah Sparrows (Passerculus sandwichensis) breeding on Kent island, new brunswick, comparing subsequent clutches within the same year and in(More)
Understanding the mechanisms that influence variation in sexually selected ornaments in seabirds has been challenging owing to the difficulty of capturing and sampling individuals outside of the breeding period when ornaments are usually grown. Stable carbon (dC) and nitrogen (dN) isotopes were used to examine the influence of pre-breeding diet composition(More)
http://dx.doi.org/10.1016/j.anbehav.2016.08.014 0003-3472/© 2016 The Association for the Study of A Phenotypic plasticity allows individuals to adjust reproductive timing in response to variation in the environment but little is known about how other factors, such as habitat quality, social environment and experience, may influence adjustments in the timing(More)
The authors introduce and describe the features of Quicksilver, a novel clinical messaging platform deployed in a multidisciplinary academic primary care clinic. The system follows a publication-subscription messaging paradigm employing dynamic role-based addressing. Quicksilver leverages the open-source XMPP, a powerful and extensible protocol for(More)