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Are diurnal time-budgets and activity patterns density-dependent in the Shelduck (Tadorna tadorna) w
[期刊论文] 作者:Djamel Bensizerara,Haroun Chen,
来源:鸟类学研究:英文版 年份:2019
Background: The Shelduck (Tadorna tadorna) is a characteristic waterbird species of inland wetlands in northeastern Algeria. Its wintering behavior in relation...
Are diurnal time-budgets and activity patterns density-dependent in the Shelduck (Tadorna tadorna) w
[期刊论文] 作者:Djamel Bensizerara,Haroun Chen,
来源:黑龙江科技学院学报 年份:2019
为探究吕家坨井田地质构造格局,根据钻孔勘探资料,采用分形理论和趋势面分析方法,研究了井田7...
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