Megan McCusker

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North-western North America has been repeatedly glaciated over most of the past two million years, with the most recent glaciation occurring between 60 000 and 10 000 years ago. Intraspecific genetic variation in many species has been shaped by where they survived glaciation and what postglacial recolonization routes were used. In this study, molecular(More)
Molecular markers, such as mitochondrial DNA and microsatellite loci, are widely studied to assess population genetics and phylogeography; however, the selective neutrality of these markers is increasingly being questioned. Given the importance of molecular markers in fisheries science and conservation, we evaluated the neutrality of both mtDNA and(More)
Marine fishes from the northwest Atlantic Ocean were analysed to determine whether barcoding was effective at identifying species. Our data included 177 species, 136 genera, 81 families and 28 orders. Overall, 88% of nominal species formed monophyletic clusters based on >500 bp of the CO1 region, and the average bootstrap value for these species was 98%.(More)
Genetic variation was assessed in Atlantic wolffish, Anarhichas lupus, across the North Atlantic Ocean using microsatellite and amplified fragment length polymorphism (AFLP) markers. Despite unusual life history attributes such as large benthic eggs, large larvae, a limited pelagic stage and relatively sedentary adults, which suggest potential for strong(More)
Phylogenetic analyses of all 4 wolffish species (Atlantic, Spotted, Northern, and Bering wolffishes) and the Wolfeel were assessed with both mitochondrial (D-loop and ND1) and nuclear (amplified fragment length polymorphism) DNA to resolve relationships within the family Anarhichadidae. Species-specific mitochondrial DNA (mtDNA) mutation rates were(More)
The Pugnose Shiner is a small minnow with a fragmented distribution across the Great Lakes and Upper Mississippi River in North America. The species is listed federally as endangered in Canada, and in the United States its status varies by state, from Special Concern to Endangered (as well as Extirpated). We conducted a thorough genetic assessment of the(More)
The technology industry has received poor marks on its ability to deliver successful projects on time and on budget. According to Sribar & Passori [32], 72% of all IT projects are late, over budget, lack functionality, or are never delivered as planned. Varley [36] suggested that poor communications, unrealistic expectations, competing agendas, resistance(More)
OBJECTIVE Cytokines may be linked to depression, although it has been challenging to demonstrate this association in cancer because of the overlap between depressive symptoms and other sickness behaviors. This study investigates the relationship between cytokines and depression in cancer patients, accounting for confounding clinical and methodological(More)
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