CRB: Influence of Captive Breeding Strategies on Population Viability

随着野生物种濒临灭绝的数量不断增加，人工繁殖计划在保护生物多样性方面的作用将变得更加重要。关于圈养种群管理的决定可能会对它们的遗传多样性产生重大影响，并可能最终影响到受威胁物种的生存。圈养繁殖策略对个体和种群生存能力的影响将在两个相关的实验中进行评估。首先，将使用已提出的管理圈养种群的四种战略中的一种来管理少量蚊虫(Gambusia Affinis)。这项实验将确定这些策略如何影响圈养个体的繁殖、生长、发育和生存。其次，来自这些种群的个体将被用来在模拟小池塘的大型微观世界中发现种群。这项实验将确定圈养种群的管理方式是否会影响其建立成功的野生种群的能力。还将研究圈养繁殖策略对建立成功的野生种群所需释放的个体数量的影响。这项研究将有助于改善圈养繁殖种群的管理，同时也有助于确保重新引入计划的成功。

As the number of species facing extinction in the wild continues to increase, the role of captive breeding programs in preserving biotic diversity will become more important. Decisions regarding management of captive populations can have large impacts on their genetic diversity and may ultimately affect the survival of threatened species. The influence of captive breeding strategies on the viability of individuals and populations will be assessed in two related experiments. First, small populations of the mosquitofish (Gambusia affinis) will be managed using one of four strategies that have been suggested for the management of captive populations. This experiment will determine how these strategies affect the reproduction, growth, development and survival of individuals in captivity. Second, individuals from these populations will be used to found populations in large microcosms, designed to simulate small ponds. This experiment will determine if the way a captive population is managed will affect its ability to establish successful wild populations. The influence of captive breeding strategies on the number of individuals that need to be released to establish successful wild populations will also be examined. This research will help improve management of captive breeding populations, while also helping to ensure the success of reintroduction programs.