WASHINGTON (AP) – Paul’s dogs are Paul with the Great Plain Man: They bark to alert neighbors to the presence of predators, with separate calls for risks that come through the ground or by air.
“The wild dogs are in the list for every predator you can think of” – Golden eaglesAnd Andy Boyce, the research environment scientist in Montana at the National Animal Animal Animal Animals for National Animals and Biology in Smithsonian, Falcons, Foxes, Badger, even large snakes-in-in-in-Boyce, the environment scientist in Montana at the National Institute of Animals and Biology in Smithsonian.
These predators will also eat a snack on birds nesting herbal lands like Curlew long.
To protect themselves, Curlews listens to the alerts coming from wild dog colonies, according to research published on Thursday in the animal behavior magazine.
Previous research has shown that birds often listen to other bird types to receive information about potential food sources or approach danger. However, so far, scientists have documented a few cases of birds that listen to mammals.
She said: “This does not necessarily mean that it is rare in the wilderness, as this means that we have not yet studied it.”
Brairi dogs live in large colonies with a series of burrows that may extend underground miles. When they hear the bark of some some, they either stand in a state of alert or dive into their burrows to avoid approaching claws and claws.
“This little bark is very high-it can carry a long way,” said Andrew Drillin, the co-author, who also works in Smithsonian.
Long nest Curlew in short grass and embrace eggs on the ground. When one hears the warning of the wild dog, she responds by pressing her head, beak and abdomen near the ground.
In this winning position, birds depend on the amazing camouflage of their feathers to become an invisible basis on the plains, “said Drielin.
To test the extent of bird alert to the gossip dogs, the researchers invented a fake predator by linking Ghor to fighting a small vehicle that is controlled remotely. They sent this unpleasant rolling over a Marj north in central Montana towards the nests of Corlio-Sometimes in silence and sometimes while playing the barking of the dogs.
When the bark was played, Curlews retreated to the grass quickly, hiding when the gag is about 160 feet (49 meters). Without the bark, Al -Ghurair, who controls it, entered a distance about 52 feet (16 meters) of nests before it seems that Curlews feels dangerous.
“You have a much more chance to avoid predation if you enter this hidden position early-and birds do when you hear the wild dogs bark.”
She said that the Al -Barari dogs are often seen as “environmental engineers”, because they build wide burrows and drop the wilderness, while maintaining short ecosystems on the proper.
“But we are now aware that they are also forming ecosystems by producing and publishing information,” she said.
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