BIOL 302 Final: ALL Notes
23 Feb 2017
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Document Summary
What is biodiversity & how do we measure it robert. colautti@queensu. ca. Number of and abundance of species in an area. Genetic variability within a population or species. Biotic factors- predation, interaction with other organisms, behaviour differences- migration, allopatric speciation, dispersal barriers. Abiotic factors- food availability, temperatures, climate, behavioural/ functional tradeoffs. Predict the climatic niche model of them by analyzing the areas that zebra mussels already live: abiotic- water properties- o2/ salinity/ alkalinity/ temperature, food- plankton density, pollution, biotic- inter/ intraspecific interactions- predation/ competition, pathogens, human disturbance. Plankton density to predict the presence or absence of mussels: x-axis = plankton density; y=axis = mussel abundance. Temperature to predict the presence or absence of mussels: x-axis = temperature; y-axis= mussel abundance, parabola opening downwards. Range does not totally account for salamander distribution. Flowers at higher latitudes flower earlier and are smaller. Spatial structure- the pattern of density and spacing of individuals in a population.
