Abstract
The life cycle, population dynamics and secondary production of the xerothermophilic land snail Xeropicta arenosa were studied in northern Greece. The study of biology and the demographic analysis of the populations of X. arenosa revealed that it is a semelparous annual species. Reproduction takes place in autumn and the majority of the adults die after egglaying. Growth is continuous throughout the year and no seasonal fluctuations occur. Estimation of annual secondary production with the Hynes' size frequency method revealed a mean standing crop (aa) of 0.075 g m-2 year-1 and a productivity (P) of 0.267+ 0.043 gm-2 year-1. The annual turnover ratio (P/) was equal to 3.56.
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