Schematic representation of the breeding <i>S</i>_<i>B</i> and natal dispersal strategy <i>S</i>_<i>N</i>.

<p>Under <i>S</i>_<i>B</i> reproduction takes place before and after dispersal with a fraction 1-<i>t</i>_<i>E</i> of offspring allocated to the natal patch and a fraction <i>t</i>_<i>E</i> to the target patch. In contrast, under <i>S</i>_<i>N</i> all reproduction always takes place either in the natal patch (with probability 1-<i>p</i>) or in the target patch (with probability <i>p</i>). In both scenarios dispersing individuals carry a certain mortality risk <i>μ</i> during dispersal—in case of mortality individuals will not reproduce in the target patch.