Effects of vegetation, corridor width and regional land use on early successional birds on powerline corridors.

PloS One
Robert A AskinsMargaret C Hardy

Abstract

Powerline rights-of-way (ROWs) often provide habitat for early successional bird species that have suffered long-term population declines in eastern North America. To determine how the abundance of shrubland birds varies with habitat within ROW corridors and with land use patterns surrounding corridors, we ran Poisson regression models on data from 93 plots on ROWs and compared regression coefficients. We also determined nest success rates on a 1-km stretch of ROW. Seven species of shrubland birds were common in powerline corridors. However, the nest success rates for prairie warbler (Dendroica discolor) and field sparrow (Spizella pusilla) were <21%, which is too low to compensate for estimated annual mortality. Some shrubland bird species were more abundant on narrower ROWs or at sites with lower vegetation or particular types of vegetation, indicating that vegetation management could be refined to favor species of high conservation priority. Also, several species were more abundant in ROWs traversing unfragmented forest than those near residential areas or farmland, indicating that corridors in heavily forested regions may provide better habitat for these species. In the area where we monitored nests, brood parasitism by bro...Continue Reading

References

Nov 1, 1996·Environmental Management·D W STEVENS
Nov 1, 1996·Environmental Management·S A TEMPLE
May 19, 2006·Ecological Applications : a Publication of the Ecological Society of America·Dirk E Burhans, Frank R Thompson
Jun 15, 2011·Journal of Environmental Management·Terhi LensuJanne S Kotiaho
May 1, 1993·Ecological Applications : a Publication of the Ecological Society of America·Tamia C Rudnicky, Malcolm L Hunter

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Citations

May 27, 2015·Biological Reviews of the Cambridge Philosophical Society·Roman D Furrer, Gilberto Pasinelli
Jun 22, 2019·Scientific Reports·Richard BischofCyril Milleret
Mar 3, 2019·Environmental Monitoring and Assessment·Süleyman ÇobanGülen Özalp

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