Search
Now showing items 31-40 of 212
Complex interactions of climatic and ecological controls on macroalgal recruitment.
(2002-11)
Little is known about the cumulative effects of multiple (>2) environmental controls on species performance and interactions in aquatic ecosystems. We asked how changes in climatic (temperature, ultraviolet radiation) and ...
Prey Exchange Rates and the Impact of Predators on Prey Populations in Streams
(1990)
We present four lines of evidence that the magnitude of prey exchange (=immigration/emigration) among substrate patches has an overwhelming influence on the perceived effects of predators on prey populations. (1) An extensive ...
Cetaceans have complex brains for complex cognition
(2007-05)
No abstract available.
Computer-Assisted Photo-Identification of Narwhals
(2011-09)
Although the narwhal (Monodon monoceros) is economically and culturally important to northern residents, sound management of this species is impaired by large gaps in knowledge. Research on this species has been limited ...
Patch Dynamics of a Phytophagous Mite Population Effect of Number of Subpopulations
(1991)
I conducted a field test of the hypothesis that the dynamics of a predator-prey interaction should be affected by the number of interacting subpopulations within an assemblage. I used a "successful" biological control ...
Tidal and turbidity effects on the shallow-water fish assemblage of Kuwait Bay
(1990)
Effects of location, diel period, tidal condition and water clarity on the size and distribution of the shallow water fish assemblage of the non-estuarine Kuwait Bay, were investigated using a beach seine and a small ...
Consequences of farmed-wild hybridization across divergent wild populations and multiple traits in salmon
(2010-06)
Theory predicts that hybrid fitness should decrease as population divergence increases. This
suggests that the effects of human-induced hybridization might be adequately predicted from the
known divergence among parental ...
Hybridization effects on phenotypic plasticity: experimental compensatory growth in farmed-wild Atlantic salmon
(2011-05)
Compensatory growth (CG) is a means by which organisms can increase their growth rate above
their routine growth rate after a period of environmentally induced growth depression. Despite a
focus on the implications of ...
Mixed evidence for reduced local adaptation in wild salmon resulting from interbreeding with escaped farmed salmon: complexities in hybrid fitness
(2008-08)
Interbreeding between artificially-selected and wild organisms can have negative fitness
consequences for the latter. In the Northwest Atlantic, farmed Atlantic salmon recurrently escape
into the wild and enter rivers ...
Evolutionary and ecological feedbacks of the survival cost of reproduction
(2012-04)
Arguably the most fundamental of trade-offs in life-history evolution is the increase in natural
mortality resulting from sexual maturity and reproduction. Despite its central importance, this
increase in mortality, a ...