Noise Pollution from Oil and Gas Activities Add Chronic Stress in Birds

Birds in the continuous exposure of noise released from the gas and oil activities, are suffering from a chronic stress and in some cases, they give birth to chicks with inhibited growth, says a new study performed by researchers from The University of Colorado Boulder.

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The research findings have been disclosed in the Proceedings of the National Academy of Sciences (PNAS) also discovered that the western bluebirds tending to gravitate to noisy environments are laying very few eggs that hatch while nesting there.

Authors from the Florida Museum of Natural History and the California Polytechnic State University, who were involved in the research, say that the recent evidences added to the earlier findings, which suggest that rising noise pollution due to human activities is hazardous to wildlife health, developing chronic stress in them.

Christopher Lowry, stress physiologist and co-author of the study from the CU Boulder’s department of integrative physiology said in a statement that, “You might assume this means they are not stressed. But what we are learning from both human and rodent research is that, with inescapable stressors, including post-traumatic stress disorder (PTSD) in humans, stress hormones are often chronically low.”

The discovery also has shed a new light on the theory about how chronic stress caused by noise exposure can affect humans’ health.

Lowry also indicates that sometimes, the body adapts to store energy and may become sensitive, when fight-or-flight reaction is continuously revved. This ‘hypocorticism’ is associated with the reduced weight and inflammation gain in rodents.

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