The research indicated that habitatdiversity was the main key factors to control bird species diversity in a certain time and space.
研究表明,在一定时空条件下,地域景观的复杂性是决定鸟类种类和数量的关键因素。
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The numerical effect is obvious: there are fewer salmon in degraded regions than in pristine ones; however, habitat loss also has the potential to reduce genetic diversity.