Arthropod reaction to landscape and habitat features in agricultural landscapes

摘要: Determining explanatory environmental factors that lead to patterns of biodiversity in cultivated landscapes is an important step for the assessment impact landscape changes. In context effect agricultural national extensification programme on biodiversity, field data 2 regions were collected according a stratified sampling method. A distribution model 3 indicator species taxa (butterflies, spiders, and carabid beetles) related influencing by means multivariate statistics (CCA, partial CCA). Hypothetical are categorised as follows: (1) habitat (habitat type, management techniques) (2) heterogeneity, variability, diversity, proportion natural semi-natural areas). The correlation models developed spider, beetle butterfly assemblages revealed there no general rules relating diversity features. relationship strongly depends organism region under study. Therefore, response changes has be identified multi-indicator concept different situations.