Recovery of small rodent populations after population collapse

摘要: In this review we summarise published knowledge regarding small mammal population recovery following sudden collapse, regardless as to whether the collapse is caused by natural or man-made events. We determine mechanisms, time and rate, suggest how adapt optimise current methods regulate size, for pest management and/or conservation. It vital that principles underlying mechanisms are known both control conservation align either maintain animal numbers at a permanent minimum level increase size. Collapses can be naturally, in declining phase of multi-annual fluctuations after disasters, events, such pesticide application. general, there three ways occur: (1) situ survival multiplication remaining fraction population; (2) immigration; (3) combination two. The mechanism strongly depends on life history strategy, social behaviour density-dependent processes dynamics species question. addition, kind disturbance, its intensity spatial scale, well environmental circumstances (e.g. presence distance refuge areas) have taken into account. Recovery vary from couple days several years depending reproductive potential type disturbances, man made natural. Ultimately, most populations rebound levels equal before collapse. Based knowledge, case-by-case decisions seem appropriate small-scale For control, large-scale approach seems necessary. Further investigations required make sound, species-specific recommendations.