Hundreds of sea gulls scavenge for food as bulldozers bury rubbish at the now-closed Wake County Landfill in North Raleigh in this file photo. A study by Duke University researchers concludes that gulls feeding on trash can be a significant course of nitrogen and phosphorus at nearby lakes. TRAVIS LONG TRAVIS LONG
At lakes which are close to a site where gulls feed on the trash can be a reason for course of nitrogen and phosphorous
( z1 possible :ARG1 ( z2 cause :ARG0 ( z3 fertilize :ARG1 ( z4 course :cxnsistof ( z5 and :op ( z6 nitrate ) :op ( z7 phosphorous ) ) ) ) ) :location ( z8 lake :ARG1-of ( z9 close :ARG2 ( z10 site :location-of ( z11 feed :ARG0 ( z12 gull ) :ARG1 ( z13 trash ) ) ) ) ) )