TY - JOUR T1 - Breeding-Bird Population Changes Following Right-of-Way Maintenance Treatments JF - Arboriculture & Urban Forestry (AUF) JO - JOA SP - 23 LP - 32 DO - 10.48044/jauf.1992.006 VL - 18 IS - 1 AU - W.C. Bramble AU - R.H. Yahner AU - W. R. Byrnes Y1 - 1992/01/01 UR - http://auf.isa-arbor.com/content/18/1/23.abstract N2 - The effects of herbicide and mechanical vegetation maintenance treatments on breeding-bird populations were compared on electric transmission rights-of-way (ROW) in the Allegheny Mountain and Piedmont Physiographic Provinces in Pennsylvania (hereafter termed the Allegheny ROW and the Piedmont ROW, respectively). Bird density decreased from pre-treatment (June) to post-treatment (August) in 1987 on handcut and mowed plus herbicide-treated ROW areas on both the Allegheny and Piedmont ROW; whereas, bird density increased on basal-, stem-foliage-, and foliage-sprayed ROW from pre-to post-treatment. A decrease occurred on the mowed ROW areas only on the Piedmont ROW. Retention of shrubby borders by selective treatment was a major factor in retaining the pre-treatment bird populations in the post-treatment period. ER -