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- 419University of Alberta, Department of Biological Sciences
- 81Mark A. Lewis
- 52Lewis, Mark A.
- 52Stockey, R.A.
- 23Wishart, D.S.
- 21Rothwell, G.W.
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Leg size affects male mating success in Tarsonemus confusus Ewing (Prostigmata: Tarsonemidae)
Download1997
Belczewski, R., Garga, N., Proctor, H.
Legs IV of males in the family Tarsonemidae are highly modified to form thickened pincer-like appendages. Previous literature describes males using legs IV both to manipulate pharate females onto the males' genital capsule as well as to constrain the adult female's legs during mating. We observed...
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Leptographium piriforme sp. nov., from a Taxonomically Diverse Collection of Arthropods Collected in an Aspen-Dominated Forest in Western Canada
Download2006
Currah, Randolph S., Gibas, Connie Fe C., Greif, Matthew D.
During a survey of fungi associated with arthropods collected in a southern boreal mixedwood forest in Alberta we obtained 29 isolates of a unique species of Leptographium. This species displayed a distinct combination of characteristics, including curved conidia on short-stipitate conidiophores,...
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2016-01-01
Maya L. Groner, Luke A. Rogers, Andrew W. Bateman, Brendan M. Connors, L. Neil Frazer, Sean C. Godwin, Martin Krkosˇek, Mark A. Lewis, Stephanie J. Peacock, Erin E. Rees, Crawford W. Revie, Ulrike E. Schla¨gel
Effective disease management can benefit from mathematical models that identify drivers of epidemiological change and guide decision-making. This is well illustrated in the host–parasite system of sea lice and salmon, which has been modelled extensively due to the economic costs associated...
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1992
Leucoloma crosbyi, a new species from northern Madagascar, is described, resulting from a revision of the pantropical genus. Diagnostic characters include: robust habit; narrow, opaque, juxtacostal bands tapering to basal region; costal-laminal transition zone with 2-9 multi- to bistratose rows;...
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Life History Strategies in Extreme Environments: Comparative Demography of Arctic and Alpine Ptarmigan
Download2005
Hannon, S. J., Sandercock, B. K., Martin, K.
Abstract: Arctic and alpine habitats are extreme environments characterized by short breeding seasons, cold temperatures, limited food availability, and potentially high predation rates. Stringent ecological conditions are likely to have important consequences for the evolution of life history...
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2007
Van Moorter, B., Mcloughlin, P. D., Gaillard, J. M., Duncan, P., Boyce, M. S., Delorme, D., Klein, F., Bonenfant, C., Messier, F., Said, S.
The relationship between individual performance and nonrandom use of habitat is fundamental to ecology; however, empirical tests of this relationship remain limited, especially for higher orders of selection like that of the home range. We quantified the association between lifetime reproductive...
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Light, wind, and touch influence leaf chemistry and rates of herbivory in Apocynum cannabinum (Apocynaceae)
Download2006-01-01
Cahill, J.F., Ingersoll, C.M., Niesenbaum, R.A.
Simply visiting and manipulating plants in a way consistent with measurement in typical ecological studies influences the amount of leaf herbivory experienced by some plant species. We examined the mechanistic basis for why Apocynum cannabinum is particularly responsive to such visitation and...
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2018-01-01
University of Alberta, Department of Biological Sciences
This image is part of a series demonstrating how to light a Bunsen Burner. This image illustrates how to hold a striker above the Bunsen Burner when prepared to light. This laboratory equipment is used in Introduction to Cell Biology: Biology 107 and MolecuLar Genetics and Heredity: Biology 207....
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2018-01-01
University of Alberta, Department of Biological Sciences
This image is part of a series demonstrating how to light a Bunsen Burner. This image illustrates how to hold a striker above the Bunsen Burner when prepared to light. This laboratory equipment is used in Introduction to Cell Biology: Biology 107 and MolecuLar Genetics and Heredity: Biology 207....
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Limited effects of soil nutrient heterogeneity on populations of Abutilon theophrasti (Malvaceae)
Download1996-01-01
An experiment was conducted to determine if spatial nutrient heterogeneity affects mean plant size or size hierarchies in experimental populations of the weedy annual Abutilon theophrasti Medic. (Malvaceae). Heterogeneity was imposed by alternating 8 X 8 X 10 cm blocks of low and high nutrient...