predatorprey10

predatorprey10 - Effect of interaction on species A Effect...

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1 _ _ 0 + + 0 Effect of interaction on species A Effect of interaction on species B Competition Amensalism Predation / Parasitism Amensalism Predation / Parasitism Commensalism/ Facilitation Commensalism/ Facilitation Mutualism Neutral If interspeci±c interactions as agents of natural selection. Adaptations to acquire resources alter competitive ability Anti-predator adaptations Example of prey evolution in response to predators: Back to the peppered moth… http://www. techapps . net/interactives/pepperMoths . swf
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2 Prickly Pear Cactus in Australia Introduction of moth larvae--biocontrol Parasites and disease can also function as “predators” to limit prey populations. Myxomatosis - disease reduced rabbit population in Australia by 98% in just a few years. Predators can have strong enough effects to eliminate prey entirely from some locations. Predators don’t always wipe out prey species In fact, predators and prey often COEXIST… but how?
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3 Some natural populations of predators and prey display
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predatorprey10 - Effect of interaction on species A Effect...

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