A refined correlation method of synoptic pattern classification defines 32 unique types which control the summer climate of Quebec-Labrador. The synoptic catalogue is dominated by Hudson Bay cyclones on 38% of early summer days and by northern cyclones on 56% of fall days. August marks the seasonal progression from summer to fall with almost complete type transience. / Each type evokes a distinct response in surface climate and energy balance components. Representative type temperature deviations allow the reconstruction of daily and monthly temperature records. Radiative characteristics are defined for each synoptic pattern, yet there is little variation in cloud response to the type catalogue. Precipitation can be expected with any type occurrence and anticyclonic domination contributes significantly to summer precipitation. / The equilibrium evaporation model is extended to sub-arctic environments by using a Priestley-Taylor constant of (alpha)(,1) = 1.27. Seasonal variations in stored lake energy require synoptic evaporation estimates to be further categorized into three periods.

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Two hundred years ago, a violent Christian extremist cult was excommunicated from their native Iceland. Now living in isolation on an island off the coast of Newfoundland, these Pilgrims defend their practice of child-marriage and widow burning as an integral part of worship. Sassa Jóhannsdottir is a 16-year-old member of the colony on the verge marrying a man--a virtual stranger--twice her age. Forced to watch the women of her community sacrifice their independence, happiness, and even their lives, Sassa seeks solace in relationships with her best friend Marta, her young ewe Fær, and the natural world. With Wifehood looming, Sassa must reckon with her faith, her societal role, and her alleged destiny.

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Dans le contexte de changements climatiques et d’intensification des contacts avec les Européens de la fin du XVIIe siècle, on dénote l’apparition de maisons multifamiliales dans le paysage labradorien. Afin de documenter la configuration interne de ces habitations, les approches micromorphologique, sédimentologique et géochimique sont utilisées. Notre étude porte sur trois maisons multifamiliales situées sur les sites archéologiques d’Oakes Bay-1 et d’Uivak Point, au nord de la côte du Labrador. Les indicateurs anthropiques identifiés par nos analyses ont été associés à des résidus d’activités domestiques tels que la préparation et la consommation des repas et l’entretien de la lampe en stéatite. On note une différenciation des signatures anthropiques dans la Maison 1, mais les données des maisons 2 et 7 reflètent une dispersion des indicateurs anthropiques à travers la maison. Cette dispersion pourrait résulter d’épisodes de nettoyage ou indiquer que les activités pratiquées n’étaient pas spécialisées ou bien délimitées.

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Physical barriers are known to limit species' ranges, but, in the absence of physical barriers, what prevents adaptation and expansion at the periphery? Genetic influence from central populations may prevent adaptation to ecological barriers by swamping peripheral populations with suboptimal genes. If this is the case, then isolation may enable local adaptation and further range expansion. Barriers such as rivers provide ideal tests of the influence of gene flow and may explain differences in range sizes. This study investigates northern range limitations and phylogeography of the Northern Two-lined ( Eurycea bislineata) and Northern Dusky (Desmognathus fuscus ) stream salamanders. Phylogeographic patterns of populations throughout Quebec and Labrador were investigated by sequencing portions of cytochrome b and 12S rRNA mitochondrial DNA genes. Interpopulation divergence was low for both species, however, unique genetic haplotypes and morphological variation on the north shore of the St. Lawrence indicate that the river is acting as a barrier to gene flow.