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Electronic Supplementary Material: Can reduced predation offset negative effects of sea louse parasites on chum salmon?
Electronic Supplementary Material: Can reduced predation offset negative effects of sea louse parasites on chum salmon?
Download2013-11-06
The .zip file contains R code and data that accompanies the paper \"Can reduced predation offset negative effects of sea louse parasites on chum salmon?\". The R code includes three main files: (1) code to compile chum salmon spawner-recruit data from escapement, catch and age -at-return, (2)...
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2011
Hilborn, Ray, Ford, Jennifer S., Peacock, Stephanie, Dill, Lawrence M., Morton, Alexandra, Krkosek, Martin, Connors, Brendan, Lewis, Mark A., Volpe, John P., Mages, Paul, Ford, Helen
For some salmon populations, the individual and population effects of sea lice (Lepeophtheirus salmonis) transmission from sea cage salmon farms is probably mediated by predation, which is a primary natural source of mortality of juvenile salmon. We examined how sea lice infestation affects...
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1998
Boutin, S., Zuleta, G., Krebs, C. J., O'Donoghue, M., Hofer, E. J., Murray, D. L.
Coyotes and lynx are the two most important mammalian predators of snowshoe hares throughout much of the boreal forest. Populations of hares cycle in abundance, with peaks in density occurring every 8-11 yr, and experimental results suggest that predation is a necessary factor causing these...
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Spring 2013
Industrial development is transforming Alberta's landscapes, with largely unquantified effects on wildlife species. Open-pit mining is occurring on vast expanses, most notably for bitumen but also extensively for coal in a rich seam that traverses the province. Major concerns have developed over...
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2005
Hurd, T. E., Hebblewhite, M., Nietvelt, C. G., Paquet, P. C., Fryxell, J. M., White, C. A., Bayley, S. E., McKenzie, J. A.
Abstract: Experimental evidence of trophic cascades initiated by large vertebrate predators is rare in terrestrial ecosystems. A serendipitous natural experiment provided an opportunity to test the trophic cascade hypothesis for wolves (Canis lupus) in Banff National Park, Canada. The first wolf...
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Interactions between the forest tent caterpillar (Malacosoma disstria Hubner) and its natural enemies: the effects of forest composition and implications for outbreak spread
DownloadFall 2011
Forest tent caterpillar (Malacosoma disstria Hübner; FTC), a major defoliator of aspen trees, occupies both aspen and mixedwood forest stands in Alberta’s boreal forest. Forest stand composition could influence the spatial pattern of FTC outbreaks if mortality from natural enemies differs...
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1994
Movement and settlement patterns of animal offspring, along with the costs of occupying familiar and unfamiliar habitats, have been inferred frequently, but rarely have they been documented directly. To obtain such information, we monitored the individual fates of 205 (94%) of the 219 offspring...
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2015-01-01
Peacock, Stephanie J., Krkošek, Martin, Bateman, Andrew W., Lewis, Mark A.
There is an increasing realization of the diverse mechanisms by which parasites and pathogens influence the dynamics of host populations and communities. In multi‐host systems, parasites may mediate food web dynamics with unexpected outcomes for host populations. Models have been used to explore...
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Patterns in the species composition and richness of fish assemblages in northern Wisconsin lakes
Download1982
Fish assemblage structure, and factors and mechanisms appearing important in the ecological maintenance of these structures, were examined for 18 small lakes in northern Wisconsin during summer and winter. The study was focused around the following questions. Are there discrete, repeatable groups...