The other stops, Baker Street, Marble Arch and Victoria coach station are centrally located and also offer many onward travel options, including access to the Jubilee, Metropolitan, District & Circle, Victoria and Bakerloo tube lines and overground services from Marylebone and Victoria stations.
Competitive Exclusion Principle. The competitive exclusion principle is an ecological principle stating that when two competing life forms attempt to occupy the same niche, only one outcome is possible: One life form will drive out the other.
Density Independent Factors. These factors occur regardless of a population size in a species. Usually these are environmental disasters, such as a forest fire, tidal wave etc that destroy the natural ecosystem that a species survives in.he result is that ecosystem can no longer sustain the species' population size and they begin to die out until the population size is at a more sustainable level. Human intervention also has increasingly played a part in determining the population of species, either via domestication or consequence from our actions.