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Table 1 Environmental factors selected in this study

From: Environmental factors affecting the composition and diversity of the avian community in igune, a traditional agricultural landscape in northern Japan

Factor Abbreviation Attribute
Number of igune within each site Density Numerical
Average area of igune woodlots within each site Mean area Numerical
Distance from nearest large forest habitat to the center of each site Distance Numerical
Total area of igune woodlots within each site Total area Numerical
Total area of igune woodlots observed directly during bird surveys 100 m area Numerical
Percentage of igune which included the broadleaf more than half in canopy area Broadleaf Numerical
Percentage of igune which was pruned bushes Clearing Numerical