Heterogeneity of mollusc communities between and within forest fragments in a much modified floodplain landscape

Abstract

abstract: The Rhine floodplain is much modified by human land use. What used to be the hardwood zone , recent(mostly) forest. The , usually observed within floodplains, or if heterogeneity prevailed. We inventoried molluscs (presence-absence) in(total). Communities - site . Species occurred with distance from the Rhine , partially along with lateral habitat turnover . Introduced species mainly, in . Old the - site , suggesting strong (selection) which the - derived . The first , indicating . The were , resulting of - absence . The , regularly from . Flooding and . The - site . During the years after the flooding event , the within - site homogeneity of communities increases (suggesting local) in - site (local stochastic extinctions) .