Silphid and dung beetle assemblages lured by carrion in old-growth evergreen broad-leaved forests and other forest environments
2020
Ueda, A. (Forestry and Forest Products Research Institute (FFPRI), Sapporo (Japan). Hokkaido Research Center)
To detect species dependent on old-growth evergreen broad-leaved forests and compare assemblages between old-growth and other forest environments, silphid and dung beetles were collected with using carrion baited pitfall traps in old-growths, middle-aged conifer plantations, middle-aged secondary forests, young secondary forests and open lands in the Aya district, Miyazaki Prefecture. Species richness and diversity index were higher in plantations and middle-aged secondary forests than in the old-growths. No old-growth dependent beetle species were found and beetle assemblages were not different among sites in the old-growths, middle-aged conifer plantations, and middle-aged secondary forests. Many species were forest generalists found in several forest types but Nicrophorus concolor, Ptmascops morio, and Onthophagus fodiens were significant indicators of the middle-aged secondary forests. On the other hand, Onthophagus nitidus was abundant especially in the open lands and the young secondary forests. These collectively made up the beetle assemblages in the open lands and the young secondary forests different from the old-growths, the plantations, and the middle-aged secondary forests.
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