Potential Use of Population Viability Analysis in Assessing Invasive Species Control

摘要

A significant proportion of effort in wildlife management and ecology is focused on assessing thenfuture size, health, and risk of extinction for various populations of wild organisms (Menges 1990,nNantel et al. 1996, Haines et al. 2006). Although many methods have been developed to aid ecologists innthis undertaking, one of the most powerful and pervasive of these has been population viability analysisn(PVA; Possingham et al. 1993). Although commonly used to signify a specific analytical tool, the termn“population viability analysis” actually refers to a wide variety of quantitative methods used to assessnthe likelihood that a population will become extinct within a certain amount of time under a specificnset of conditions (Morris et al. 1999). These PVA methods have almost exclusively been employed bynecologists to assess the recovery of threatened populations of plants and animals by evaluating their risknof extinction under current and proposed management prescriptions.