Population vulnerability of marine birds within the California Current System

Six metrics were used to determine Population Vulnerability: global population size, annual occurrence in the California Current System (CCS), percent of the...本研究采用六项指标以确定种群脆弱性（Population Vulnerability）：全球种群规模、加利福尼亚流系（California Current System, CCS）内的年度出现频次、……所占比例