Journal Articles (Biological Sciences)

2006

Stockey, R.A., Beard, G., Trivett, M.L., Rothwell, G.W.

Several fertile pinnules with abaxially borne sporangia have been discovered in calcareous marine nodules from the Middle or Late Eocene Appian Way locality on the east coast of Vancouver Island, British Columbia, Canada. Fertile pinnules are attached in groups of two or three. They are deeply...

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...

1997

Lafferty, K.D., Shostak, A.W., Bush, A.O., Lotz, J.M.

W: e consider 27 populationa nd communityt erms used frequentlyb y parasitologistsw hen describingt he ecology of parasites. We provide suggestions for various terms in an attempt to foster consistent use and to make terms used in parasite ecology easier to interpret for those who study...

1994

Veit, R. R., Banks, J. E., Holmes, E. E., Lewis, M. A.

Most of the fundamental elements of ecology, ranging from individual behavior to species abundance, diversity, and population dynamics, exhibit spatial variation. Partial differential equation models provide a means of melding organism movement with population processes and have been used...

2006

Devito, K.J., Redding, T.E.

Particle density is a fundamental soil physical property, yet values of soil and organic matter particle density (ρs and ρo) vary widely in the literature. We measured particle density of organic soils from five wetland types, and from exposed sediments of drying ponds, in northern Alberta,...

2004

Whittington, J., Mercer, G., St. Clair, C.C.

Few studies have examined the effects of human development on fine-scale movement behavior, yet understanding animal movement through increasingly human-dominated landscapes is essential for the persistence of many wild populations, especially wary species. In mountainous areas, roads and trails...

2009

Tsuneda, A., Davey, M.L., Currah, R.S.

Atradidymella muscivora (Pleosporales) is a bryophyte pathogen that infects the mosses Aulacomnium palustre , Hylocomium splendens , and Polytrichum juniperinum . Light and scanning electron microscopy and extracellular enzyme production were used to characterize the interactions between this...

2009

Hillen, T., Lewis, M.A., Lee, J.M.

In this paper, we consider spatial predator–prey models with diffusion and prey-taxis. We investigate necessary conditions for pattern formation using a variety of non-linear functional responses, linear and non-linear predator death terms, linear and non-linear prey-taxis sensitivities, and...

2007

Greif, M.D., Currah, R.S.

Fungi from approximately 1700 individual arthropods that had been captured in traps set in aspen-dominated woodland in western Canada and baited with coyote dung, moose dung, white-rotted wood, brown-rotted wood and fiberglass were isolated in pure culture and identified. These data were analysed...

1982

Magnuson, J. J., Tonn, W. M.

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...