field vole
... that scramble competition is one of the causes of the large population swings experienced by the field vole?
... that <a href="./Scramble_competition" id="mwDss" rel="mw:WikiLink" title="Scramble competition">scramble competition</a> is one of the causes of the large population swings experienced by the <b id="mwDsw"><a class="mw-redirect" href="./Field_vole" id="mwDs0" rel="mw:WikiLink" title="Field vole">field vole</a></b>?