Multiple variations on these topics are possible:
Role of competition/facilitation in determining community composition of different ecosystems
Biotic factors (competition/ facilitation) in succsession following different kinds of disturbance (fire, floods, glaciation)
Importance of herbivory in preventing competitive exclusion
Introduced (non-native) species- influence on native species diversity, disturbance regimes, ecosystem function
Plant species effects on nutrient cycling, primary production
Influence of diversity on ecosystem function
Differences in sexual versus vegetative reproduction in relation to environment/disturbance regime
Coevolution between plants and herbivore specialists
Variation in plant secondary chemistry and potential ecological roles
Climate change effects on vegetation- past and future
Direct effect of elevated CO2 on vegetation
Variation in life history characters
in relation to climate / disturbance regimes
rev. 19 Oct 05