Journal Articles (Biological Sciences)
Items in this Collection
- 870Biological Sciences, Department of
- 870Biological Sciences, Department of/Journal Articles (Biological Sciences)
- 109Mathematical and Statistical Sciences, Department of
- 109Mathematical and Statistical Sciences, Department of/Research Publications (Mathematical and Statistical Sciences)
- 50The NSERC TRIA Network (TRIA-Net)
- 50The NSERC TRIA Network (TRIA-Net)/Journal Articles (TRIA-Net)
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Intrinsic rate of increase and temperature coefficients of the aphid parasite Ephedrus californicus baker (Hymenoptera: Aphidiidae)
Download1987
The demographic statistics and the temperature requirements for development of Ephedrus californicus Baker were determined under constant laboratory conditions. At 23°C, females provided each day with forty 2nd-instar pea aphids, Acyrthosiphon pisum (Harris), lived for 13.4 days and laid 1193...
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Introgression potential between safflower (Carthamus tinctorius) and wild relatives of the genus Carthamus
Download2011
Christianson, Jed, Mayerhofer, Marion, Topinka, Deborah, Good, Allen G., Mayerhofer, Reinhold
Background: Safflower, Carthamus tinctorius, is a thistle that is grown commercially for the production of oil and birdseed and recently, as a host for the production of transgenic pharmaceutical proteins. C. tinctorius can cross with a number of its wild relatives, creating the possibility of...
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2001-01-01
Clark, James S., Lewis, Mark A., Horvath, Lajos
For populations having dispersal described by fat‐tailed kernels (kernels with tails that are not exponentially bounded), asymptotic population spread rates cannot be estimated by traditional models because these models predict continually accelerating (asymptotically infinite) invasion. The...
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2002
Lewis, M. A., Fagan, W. F., Neubert, M. G.
Recent advances in the mathematical theory of invasion dynamics have much to offer to biological control. Here we synthesize several results concerning the spatiotemporal dynamics that occur when a biocontrol agent spreads into a population of an invading pest species. We outline conditions under...
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Is the anthophyte hypothesis alive and well? New evidence from the reproductive structures of Bennettitales
Download2009
Stockey, R.A., Rothwell, G.W., Crepet, W.L.
Bennettitales is an extinct group of seed plants with reproductive structures that are similar in some respects to both Gnetales and angiosperms, but systematic relationships among the three clades remain controversial. This study summarizes characters of bennettitalean plants and presents new...