I am studying the bird's behaviour in a bird sanctuary (Keoladeo National Park, Bharatpur). A highway is passing (after 2007) near the sanctuary. How the noise level generated by the vehicle affects the bird's behaviour and breeding pattern.
Note that "noise levels" can be measured in a variety of ways. Frequency information is important, especially to evaluate impacts such as the Lombard effect and pitch shifts. Is there passive acoustic monitoring at your site?
Noise level can indeed disturb the bird's breeding behaviour especially in the buffer zone near to sanctuary. High noise level can interfere with detection, discrimination and recognition of species specific vocalizations. Even it can lead to physical damage,physiological stress and ultimately death of the animals.
http://beheco.oxfordjournals.org/content/early/2015/01/12/beheco.aru232.abstract
but of course it all depends on how high the noise levels are and how they can interfere with the specific ecology of a given species. Also you might want to eliminate other impacts that road might have on the area, such as pollution and human access
Dear Neeraj Sharma,
Noise pollution interferes with communication of birds that communicate to indicate danger, feeding sites, etc., and this can cause the reduction of the communication distance to 1500 meters to 50 meters, according to the biologist Dr. Carlos Barros de Araujo.
Such interference can even make the birds change their corner vocalizarem most acutely in higher noise areas.
Noise barriers along highways can contribute to reduction of noise pollution.
Dear Maura,
Very informative answer by you. Please provide some relevant articles, if you have.
Do not have much idea about the vehicle noise but i had seen that High tension electric cables also produces much noise. One the important wetland of my city is under threat due to same. Electric company passed the line from the lake due to which we had seen fall in the population of migratory bird in the lake.
hi
noise pollution has adverse effects on the birds behavior special on the breeding
It might affect the frequency and pitch of bird songs as well as interfere with developmental Biology of eggs.
Several authors claim that highways affect wildlife through loss and fragmentation of habitats, by causing mortality. Due to being run over, in addition to affecting the behavior of animals and the movement and dispersion in the
wild animal populations. I provide here a link to a publication of the Brazilian Agricultural Research Corporation - EMBRAPA. .
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