Multiple Choice Quiz


1	Johnston and Odum’s data on Piedmont birds has been modeled with an exponential curve which:
		A)	is a pattern unlike the relationship for plants observed in Glacier Bay
		B)	upon close inspection, shows an apparent decrease in species richness after 50 years
		C)	suggests that species are added at an even pace
		D)	actually would fit better with a linear model


2	During succession, after organisms establish and interact with each other:
		A)	little will change for hundreds of years
		B)	only floods can reset the process
		C)	they begin to change the physical conditions
		D)	none of the above


3	Successional stages to a relatively stable “climax” occur most rapidly in:
		A)	glacial terrain
		B)	marine intertidal zones
		C)	temperate forests
		D)	forests developing from volcanic substrate


4	One lesson from the Park Grass Experiment is that:
		A)	stability is a function of scale considered
		B)	fertilizers have little effect on species richness
		C)	effects of variation in precipitation were hard to see
		D)	short-term studies are more likely to tell us how succession proceeds


5	Turner and Betancourt have estimated that their repeat photographs of desert landscapes can sometimes be taken within what distance of the original?
		A)	1 m
		B)	10 m
		C)	100 m
		D)	10 cm


6	Dryas is a:
		A)	horseweed
		B)	stream algae
		C)	dwarf shrub
		D)	brand name for frozen carbon dioxide, used to preserve soft tissue


7	True or False: If disturbances occur sporadically across a landscape, the process of succession will likely produce a mosaic of habitat types.
		A)	True
		B)	False


8	True or False: Ecological resilience refers to speed of recovery by some measure, not to how difficult the change was to produce.
		A)	True
		B)	False


9	True or False: The successional model receiving the least amount of empirical support is facilitation.
		A)	True
		B)	False


10	True or False: Cooper is associated with early Twentieth century surveying trips to Glacier Bay, Nova Scotia.
		A)	True
		B)	False

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