The effect of temperature on the activity of Carabidae (Coleoptera) in a fallow field

摘要: In 1992-1994, the activity of ground surface arthropods was investigated on a fallow field divided into small plots with different regimes weed management. Daily operated pitfall traps were placed in transect across field. The aim study to investigate effect temperature magnitude total arthropod catches. pooled catches all species poorly correlated since its effects damped by differences timing peak abundance species. To compensate for this variation groups similar patterns annual selected. regressions catch average daily then calculated periods their occurrence when changes and/or behaviour minimum. Seven abundant carabid selected and April 20-May 13 (Bembidion lampros, Harpalus tardus, Poecilus cupreus), June 25-July 25 (H. P. August 8-September 9 (Amara convexiuscula, H. affinis, distinguendus, Pseudoophonus rufipes). By procedure significant shown, periods. size increased 6.3 percentage points per 1°C increase temperature. Using temperature/catch relationship several recalculated standard 20°C. This decreased 5-31%. decrease proportional temperatures during period sampling.