With the objective of protecting woodpeckers and forest environment, the relationship between the appearance of woodpeckers and the forest vegetation type was determined in urban forests of Seoul area. The target woodpecker species were the dominant woodpeckers in the area such as Japanese pygmy woodpecker (Dendrocopos kizuki), great spotted woodpecker (Dendrocopos major), and grey-faced green woodpecker (Picus canus). These species appeared mostly in the forest vegetation of Dahurian Birch (Betula davurica) and Japanese alder (Alnus japonica), which are grown in the valley in our study area. The appearance of woodpeckers is assumed to correlate with the woodpeckers' foraging activity for insects living in the soil. The soil moisture of the forest was thought to affect the inhabitation of insects. The population of grey-faced green woodpecker increased with an increase in the tree diameter at breast height (DBH), while that of two other species increased only with small to medium tree DBH (20-25 cm). The reason for this is that the grey-faced green woodpecker grew larger than the other two species in biomass, needing relatively large trunks for their nesting unlike the other two species that had a relatively smaller biomass.
|ジャーナル||Journal of the Faculty of Agriculture, Kyushu University|
|出版ステータス||出版済み - 9月 1 2013|
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