Xerocrassa geyeri
... that the active biological dispersal of land snail Xerocrassa geyeri is about 3 meters during one year?
... that the active <a href="./Biological_dispersal" id="mwCBU" rel="mw:WikiLink" title="Biological dispersal">biological dispersal</a> of land snail <i id="mwCBY"><b id="mwCBc"><a href="./Xerocrassa_geyeri" id="mwCBg" rel="mw:WikiLink" title="Xerocrassa geyeri">Xerocrassa geyeri</a></b></i> is about 3 meters during one year?