NPO picchio Wild Bear Mt.Asama
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Meadow Ecosystem
Forest Ecosystem

Restoration of a Meadow Ecosystem

Akaiwa, valley once a forest plantation, was lumbered in the past. Its area is 60m wide and 300m long. Our aim for this area is to manage and restore the environment to an ideal meadow state. Which, we believe, should be thriving with the native flora and fauna of Karuizawa.

Apart from this activity, this area is scheduled to be an eco-garden. Its main focus being the investigation of the intricate network between Japanese primrose (Primula sieboldii), its pollinator (bumblebee) and the field mice (Apodemus speciosus) which are a nest provider for bumblebees.

Lastly, this meadow is an active field area for research carried out by the University of Tokyo. Their main projects include, genetic study of the Japanese primrose, seed distribution by birds and mammals, and studies in pollination.

Bumblebees (Bombus diversus)

Our organization firmly believes that no two organisms are the same, and is strongly against generalizing species’ traits. Therefore, our studies are carried one step further, for example, recognizing the individual characteristics of each and every being involved in our field study. Thus, species of Great tit (Parus major), Japanese giant flying squirrel (Petaurista leucogenys), Montane Brown Frog (Rana ornativentris), Bumblebees (Bombus diversus) et cetera. are all individually captured and marked, enabling detailed observations of breeding activities and migration. These activities facilitate observations of true science.

Highland Meadow Flowers and Insects

The foothills of Mt. Asama are located at an altitude of 2000m and the Ike-no-taira meadow carries with it a unique ecosystem. We focus on the unique interactions between insects and flowers. The primary visitors to flowers are Bombus beaticola, but a few species of ants serve as the dominant visitors to some plant species.