Projection of the climatic variable <i>precipitation in the driest quarter</i> and logistic responses for each species.

<p><b>A</b>. The color gradient on the map indicates the precipitations (in mm) over the study area. <b>B</b>. The logistic responses of the precipitation in the driest quarter tested alone for the four studied species (<i>P</i>. <i>icarus</i>, <i>P</i>. <i>celina</i>, <i>A</i>. <i>agestis</i>, <i>A</i>. <i>cramera</i> from left to right). The response showed a clear and recurrent threshold between 50 and 100 mm of precipitation.