Journal Articles (Biological Sciences)

2013-01-01

Lewis, Mark A., Proboscsz, S., Orr, C., Krkošek, M., Peacock, S.J.

The resilience of coastal social–ecological systems may depend on adaptive responses to aquaculture disease outbreaks that can threaten wild and farm fish. A nine-year study of parasitic sea lice (Lepeophtheirus salmonis) and pink salmon (Oncorhynchus gorbuscha) from Pacific Canada indicates that...

2016-07-07

Cooper, Endymion D , Graham, Sean W , Moran, Robbin C , Smalls, Tynisha L , Ambrose, Barbara A , Wong, Gane Ka‐Shu , Vasco, Alejandra , Stevenson, Dennis W

Despite the extraordinary significance leaves have for life on Earth, their origin and development remain vigorously debated. More than a century of paleobotanical, morphological, and phylogenetic research has still not resolved fundamental questions about leaves. Developmental genetic data are...

2009-01-01

Bampfylde, Caroline J., Jerde, Christopher L., Lewis, Mark A.

We formalize the establishment process for a sexual, semelparous organism through the use of hierarchical probability modeling from parameters of survival, probability of being female, probability of being fertilized, and expected fecundity.We show how to calculate the expected per capita growth...

2000

Owttrim, George W., Yu, Esther

We have shown previously that CrhC is a unique member of the DEAD-box family of RNA helicases whose expression occurs specifically under conditions of cold stress. Here we show that recombinant His-tagged CrhC, purified from Escherichia coli, is an ATP-independent RNA binding protein possessing...

2012-01-01

Coltman, David W., James, Patrick M. A., Cullingham,Catherine I., Cooke, Janice E. K.

Understanding the physical and genetic structure of hybrid zones can illuminate factors affecting their formation and stability. In north-central Alberta, lodgepole pine (Pinus contorta Dougl. ex Loud. var. latifolia) and jack pine (Pinus banksiana Lamb) form a complex and poorly defined hybrid...

2011

Kljun, N., Hopkinson, C., Giroux, K., Petrone, R., Chasmer, L., Milne, T., Devito, K., Creed, I., Barr, A.

In this study, a Boolean classification was applied using novel methods to 3-D vegetation structural and topographic attributes found within flux footprint source/sink areas measured by eddy covariance instrumentation. The purpose was to determine if the spatial frequency of 3-D attributes, such...

2013-01-01

Evenden, Maya, Shan, Bin, Ma, Cary, Najar, Ahmed, Erbilgin, Nadir, Whitehouse, Caroline

Host plant secondary chemistry can have cascading impacts on host and range expansion of herbivorous insect populations. We investigated the role of host secondary compounds on pheromone production by themountain pine beetle (Dendroctonus ponderosae) (MPB) and beetle attraction in response to a...

2005

Li, S., Dai, M., He, X., Zhang, Y., Ruan, J., Burt, D., Yu, J., Wang, J., Yang, H., Hu, Y., Liu, B., Wong, G., Ye, C., Chen, J., Cong, L., Fang, L.

Working in parallel with the efforts to sequence the chicken (Gallus gallus) genome, the Beijing Genomics Institute led an international team of scientists from China, USA, UK, Sweden, The Netherlands and Germany to map extensive DNA sequence variation throughout the chicken genome by sampling...

2012

Campbell, S.D., Homola, E.M., Fasulo, B., Yu, K.R., Hsieh, T.S., Sullivan, W., Koyama, C.

Defects in DNA replication and chromosome condensation are common phenotypes in cancer cells. A link between replication and condensation has been established, but little is known about the role of checkpoints in monitoring chromosome condensation. We investigate this function by live analysis,...

2013-01-01

Merrill, E., Lewis, Mark A., Pybus, M., Potapov, A., Coltman, D.

We develop a model for the spread of chronic wasting disease (CWD) in a mule deer (Odocoileus hemionus) population to assess possible mechanisms of disease transmission and parameterize it for the mule deer population in Alberta, Canada. We consider seven mechanisms of disease transmission...