Fig. 7
Pearson correlation matrices between time budgets of various diurnal activities of the Shelduck wintering at Sabkha Djendli (Northeastern Algeria) during the seasons 2010–2011 and 2011–2012. Correlation tests are displayed as correlation coefficients (shown by color, size and intensity of shading in squares and pie charts and their corresponding values above diagonal) and p-values (under diagonal)