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Unformatted text preview: from aggressive defense of a patch of flowers to peaceful coexistence, depending on the rate at which they gain nectar from the flowers (the nectar availability being manipulated experimentally by researchers, who also weighed the birds & measured their energy expenditure under various conditions!) Similar patterns of switching from territorial to open systems of spatial organization have now been observed in dozens of species, ranging from insects to wolves Do you suppose that birds get more territorial when nectar becomes scarce, or less? Most people unfamiliar with this research (or with the underlying theory that guides some of it) expect that territoriality increases with scarcity. But in fact, birds become less territorial when nectar is scarce, a counter-intuitive finding explained in the following section...
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This note was uploaded on 11/22/2011 for the course ANT ANT2000 taught by Professor Monicaoyola during the Fall '10 term at Broward College.
- Fall '10