Floristic diversity of the Połaniec (Vistula lowland)

The research covers in Vistula lowland (north part of Sandomierz valley) in years 2008 – 2011. The studied area covers about 25 km2 in ATPOL grid and included 10 squares of side length 2 x 2 km in the great square EF.A floristic list contains 214 species of vascular plants (numbered) belong to 52 family and 8 species feral from cultivation. Distinguished three mountain species and two protect species.Badania florystyczne prowadzone były na obszarze Niziny nadwiślańskiej (północna część Kotliny Sandomierskiej) w latach 2008 – 2011. Powierzchnia badanego obszaru wynosi około 25 km2, w siatce kwadratów ATPOL. Obejmuje 10 kwadratów o boku 2x2km leżących w obrębie dużej jednostki EF.Lista florystyczna obejmuje 214 gatunków należących do 56 rodzin, oraz 8 gatunków zdziczałych z upraw. Scharakteryzowano szatę roślinną, wyróżniono trzy gatunki górskie, oraz dwa gatunki podlegające ochronie prawnej

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Results of multiple regression with seed characteristics as a dependent variable, and elevation with factors as independent variables.

<p>Results of multiple regression with seed characteristics as a dependent variable, and elevation with factors as independent variables.</p

Relationship between seed size and elevation.

<p>Depending on a plant species, a mean size of seeds either increased, decreased, or remained uncorrelated with elevation. The lines represent least square regressions fitted to data on mean seed size in the study sites. PE–<i>Primula elatior</i>, SC–<i>Soldanella carpatica</i>, GM–<i>Geum montanum</i>, HA–<i>Homogyne alpina</i>, LW–<i>Leucanthemum waldsteinii</i>, SS–<i>Senecio subalpinus</i>.</p

Results of factor analysis.

<p>Results of factor analysis.</p

Correlations between seed characteristics and elevation in the studied plant species.

<p>Correlations between seed characteristics and elevation in the studied plant species.</p