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Current Search ((ALL：Bird))
Filters ((来源：plos one) AND (发表日期：2017) AND (关键词：birds) AND (资源类型：期刊论文))
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conservation(11)
landscape(6)
forests(5)
population(5)
density(2)
surface water(2)
urban areas(2)
wetlands(2)
agricultural lands(1)
agriculture(1)
altitude(1)
boundaries(1)
grasslands(1)
lakes(1)
leads(1)
magnetic field(1)
mortality(1)
oil spills(1)
precipitation(1)
radiocarbon(1)
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