Black rumped flameback software#

Mimicry occurs when one species evolves to look like another species because of the social interactions between the two. вЂњThe fact that the strongest correlation for these look-alikes was range overlap, rather than any of the other possibilities we looked at, strongly suggests there is mimicry happening,вЂќ says Miller. For each woodpecker pairing, they tested how strongly genetics, habitat, climate conditions, and geographic proximity correlated to similarities in plumage patterns.ДЄfter comparing millions of eBird observations, satellite readings of habitats, and complex color and pattern measurements of the woodpeckers, their results showed that geographic overlap-sharing ranges-was a better predictor of look-alikes than genetics, habitat, or climate. Miller and his colleagues compared 230 woodpecker species across the globe. The new study sought to explain how it is that the Downy and Hairy Woodpecker, or the White-naped Woodpecker and Black-rumped Flameback (two Asian species that resemble Pileated Woodpeckers painted with a strip of gold), can look nearly identical even though they have been evolving separately for millions of years. вЂњOther researchers have noticed these pairings before, but this is the firstВ time anyone has tried to conclusively demonstrate that these similarities are true mimicry,вЂќ says Eliot Miller, lead author of the study and collections development manager at the Cornell Lab of OrnithologyвЂ™s Macaulay Library.

And the researchers found more instances of woodpecker doppelgangers all around the world, including Lesser Spotted Woodpeckers that look like Great Spotted Woodpeckers in Europe and Cardinal Woodpeckers that look like Gabon Woodpeckers in Africa.

The Hairy Woodpecker is more closely related to the very different looking Red-cockaded Woodpecker, while the Downy is closer to NuttallвЂ™s Woodpecker.ДЄ new study published in April in the journal Nature Communications provides strong evidence that Downy and Hairy Woodpeckers are an example of вЂњplumage mimicryвЂќ-one species of bird evolving to match the plumage patterns and colors of another. Their genetic lineages split off from a shared ancestor over 6 million years ago-about as far back as chimps and humans split. Both woodpeckers sport similar black-and-white plumages, males of both species don a red mark on the back of their heads, and the two speciesвЂ™ habitats and ranges overlap considerably.Д«ut despite being look-alikes, these two species are not that closely related. Copy, distribute and/or modify this document under permission granted by Imran Shah.Downy and Hairy Woodpeckers are a classic case of confusing species.Black-rumped Flameback (Dinopium benghalense).Black-rumped Flameback (Dinopium benghalense) captured at, Sulemanki, Punjab, Pakistan with Canon PowerShot SX30 ISДЇlash did not fire, compulsory flash suppressionД«lack-rumped Flameback (Dinopium benghalense).The timestamp is only as accurate as the clock in the camera, and it may be completely wrong. If the file has been modified from its original state, some details such as the timestamp may not fully reflect those of the original file.

Black rumped flameback software#

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