权威例句
The effectiveness of a seal scarer at a wild salmon net fisherySeal scarers do not scare seals: A study on the effects of seal scarer sounds on harbour sealsRoadside animal scarer has light elements at a similar spacing to the eyes of predatorsFar-reaching effects of a seal scarer on harbour porpoises , Phocoena phocoenaHeron scarer comprises decoy bird mounted on metal wire connected to it by spring attached to its chestAccidental death due to explosion of acetylene bird-scarerSound operated mole scarer - emits electrically produced intermittent sound in audible range from buried housingSimulated seal scarer sounds scare porpoises, but not seals: species-specific responses to 12 kHz deterrence soundsHearing thresholds of harbor seals ( Phoca vitulina ) for playbacks of seal scarer signals, and effects of the signals on behaviorCost-effectiveness of scaring brent geese Branta b. bernicla from fields of arable crops by a human bird scarer