If you murmur trucks, honk de car horns and rams of the leaves, you are not only – researchers say sound traffic can leave birds in anger, even.
Researchers found a male Galapagos yellow trochles, and live near busy roads on the islands behave more aggressively with the listening songs from the male, if possible before traffic sounds.
Researchers say to be found to be the birds and knew their own songs, which they act as a warning to interrupters to the territory could a larva of the tap traffic.
“Communications are usually in the physical aggression, if the communication can not be used for the noise, as well as possible in dangerous behaviors to lead to the physical fight,” Dr Male çağr akçay, a co-cover research from England Ruskin University.
Writing an Journal of MorningThe team reported how they studied 38 males in two islands in Galapagos. While 20 birds were living nearby trips, 18 nested by traffic.
The territory between male, the team played two memory soundtracks in different days. One soundtrack only featured a song of another male Galapagos yellow warbler with other additionally featured traffic sounds.
The team found the males who lived near busy roads behaved more aggressively in the posterior, approaching and flying around the speaker to seek intruding. Akçay is said that when the possibility that he got closer to themselves, not all men sounded approached – suggests ready powder.
“If there is no bird for the speaker, which was the middle … a challenge, by itself, and what could result in a physical fight,” he said.
On the contrary, masculine, who had lived a roads less irascible with traffic noise present – perhaps, the team suggests that they are scared by unknown sound.
The scientists said Males lived in more densely populated Santa Cruz Island sounded for now with traffic sounds were present when the converter is true for those in more sparsly populated floreana island.
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However, across the board, the males are slightly increased at least frequencies of their songs with traffic sounds were played – perhaps to her easier for others to hear. And when the increase in the peak frequency of the male, who lived a traffic, the team suggests that it could be that birds who lived near the roads are already singing at the best peak frequency are now.
Akçay said that the birds who were better able to deal with traffic sounds lived nearly trips, but either, which can be that birds as a result of living near traffic.
And for a few words in floreana, and another.
“Even as a little experience [of traffic]It seems that it has an effect, “he says.” We have to think about the sound of pollution also in the places Galapagos, I think the impact of noise pollution in the unique species. “