Joined: Nov. 2006
|Quote (Patrick Caldon @ July 25 2007,15:54)|
| Suppose there is a bird who has learned to avoid butterflies having a specific pattern. There is then a selective advantage to looking like the poisonous butterfly. This has been studied quite a lot.|
I am not sure "it has been studied quite a lot". According (neo)darwinsim wasps have aposemtic coloration to warn and deter predators. Hornet moth (Aegeria apiformis) looks and buzz like a wasp. One would think that the moth has some survival advantage looking like a wasp. But probably no scientist has made a research to prove it yet. Wasps have many bird's predators who eat them.
One of them is bird Merops apiaster living in Europe - Bee eater:
Just as the name suggests, bee-eaters predominantly eat insects, especially bees, wasps and hornets, which are caught in the air by sorties from an open perch.
or curl-crested jay (Cyanocorax cristatellus) in Brazil:
These observations suggest that predation by birds could play an important role in the dynamics of social wasp populations.
It is only a (neo)darwinian pressuposition that a moth mimicing wasps are protected having wasp coloration. Probably no serious research has been done yet. If it has been done let me notice.
Btw. I have read in a text-book published during communism (socialism you know) that birds are able to tell apart a hornet moth and a wasp very well - but there was no resource of the claim. But Frankfurter school of structuralism claims the same - the predators can distuinguish between mimic and model.
I could not answer, but should maintain my ground.-