Fracking Linked to Reduced Songbird Nesting Success

A new study from The Condor: Ornithological Applications demonstrates that the nesting success of the Louisiana Waterthrush is declining at sites impacted by fracking in northwestern West Virginia.
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The central Appalachian region is experiencing the country’s most rapid growth in shale gas development, or fracking. And now we have better insight about how this activity is impacting the region’s songbird populations.

A new study from The Condor: Ornithological Applications demonstrates that the nesting success of the Louisiana Waterthrush – a habitat specialist that nests along forested streams, where the potential for habitat degradation is high – is declining at sites impacted by shale gas development in northwestern West Virginia.

West Virginia University’s Mack Frantz and his colleagues mapped waterthrush territories and monitored nests along 14 streams from 2009 to 2011 and again from 2013 to 2015.

They also mapped and measured disturbances to streams and the forest canopy, using aerial photographs and satellite imagery as well as extensive ground-truthing, and classifying them according to whether they were related to shale gas development.

Fracking’s Impact on Song Birds

Their results show that as shale gas development has expanded in the area, nest survival and productivity and riparian habitat quality have declined. At the same time, the size of individual waterthrush territories has increased, suggesting birds need to range farther to find sufficient resources.

This study is one of the first to demonstrate that shale gas development can affect songbird reproductive success and productivity, both directly through the presence of fracking infrastructure and indirectly through effects on habitat quality.

Fracking and the Modern-Day Canary in a Coal Mine

“I hope our findings lead to robust protections of our forested headwater stream ecosystems, which are currently overlooked for regulation despite their critical role in providing nutrients and organic matter downstream, not to mention as an important source for drinking water,” says Frantz.


“Waterthrushes are a modern-day ‘canary in the coal mine,’ and there are many more opportunities to study how anthropogenic disturbance effects and entangles food webs at the aquatic-terrestrial interface.”

“After twelve years of research conducted with this species, I have seen the numerous impacts hydraulic fracturing has had on waterthrush survival and the toll that the industry has had on our nation’s wild places and wildlife,” adds Louisiana State University-Alexandria’s Leesia Marshall, a waterthrush expert who was not involved in the Condor study.

“This paper should serve as a call for all scientists to redouble efforts across all related disciplines to document the present impacts of shale gas extraction and to develop strategies for mitigation and avoidance of potential impacts in the future.”

Read the full abstract, Demographic response of Louisiana Waterthrush, a stream obligate songbird of conservation concern, to shale gas development here.


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