BIO 213 Final Exam Questions with Complete Solutions

life history Traits that affect an organism's schedule of reproduction and survival. coevloution the evolution of two species that is due to mutual influence, often in a way that makes the relationship more beneficial to both species. marginal value theorem A rate-maximizing forager will choose the residence time for each patch type so that the marginal rate of gain at the time of leaving equals the long term average rate of energy intake in the habitat. ecological trap where habitat structure attracts individuals but reproductive success and/or survival is reduced edge effect the condition in which, at ecosystem boundaries, there is greater species diversity and biological density than there is in the heart of ecological communities. SLOSS debate controversy concerning the relative advantages of a single large or several small conservation areas density dependent growth factors that are dependent on the number of individuals density independent growth population growth that does not factor population size (flood, fire, drought) intraspecific competition competition between members of the same species delayed density dependence when density dependence occurs based on a population density at some time in the past Lotka-Volterra Model A model of predator-prey interactions that incorporates oscillations in the abundances of predator and prey populations and shows predator numbers lagging behind those of their prey SIR model A simple model of disease dynamics that tracks the population as it enters and leaves three categories: Susceptible, Infectious and Recovered or Removed Richness number of species Eveness distribution of individuals among the different species diminshing returns you find less new things the longer you look