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Regulation of life history strategies with individuals in predictable and unpredictable environments
Animals must adjust their physiology and life histories to conform with changes in the environment. These changes can be fairly predictable, such as the changes in the season, or they can be unpredictable, such as an attack by a predator or an unusual storm. A finite state machine model was developed to understand individual ...
Ecological factors affecting rates of spread in Cytisus scoparius, an invasive exotic shrub
Invasions of exotic species are among our most daunting conservation challenges, and range expansion models provide us with a framework for modelling them. I have focussed on ecological factors contributing to variation in population growth and spread in Cytisus scoparius (Scotch broom), an exotic shrub invading western ...
Effects of repetitiveness, pairing and linkage on position-effect variegation in Drosophila
Position-effect variegation (PEV) is a long distance silencing effect that results in variable inactivation of one or many genes. PEV is caused by the abnormal juxtaposition of heterochromatin and euchromatin following chromosome breakage. By using artificially constructed transgene arrays, I have found that the effects of ...