ABSTRACT Captive rearing can be a successful short-term strategy for protecting species threatened with extinction, by bolstering existing populations, or establishing new ones. Improving the success of captive rearing requires specific prior ecological knowledge, for example habitat and climatic requirements. Here, we report on the captive rearing of the critically endangered Canterbury knobbled weevil Hadramphus tuberculatus (Pascoe, 1877). Only a single population of H. tuberculatus is known, with an estimated population size of fewer than 100 individuals; as such, captive rearing provides an opportunity to augment the remaining population and potentially to allow the establishment of new populations, if suitable sites can be found. We successfully reared two F1 generation adults and two live larvae were recovered at the end of the project. We use a qualitative spatial analysis to determine the location of possible sites for reintroduction of H. tuberculatus. The spatial analysis suggests that there is little suitable habitat remaining for new H. tuberculatus populations. Our study provides guidelines for future captive breeding programmes and highlights the risks of removing individuals from an already vulnerable, small population.

中文翻译：

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圈养饲养濒临灭绝的象鼻象鼻虫（Pascoe，1877）（鞘翅目： Curculionidae：Molytinae）用于异地保护

摘要 通过加强现有种群或建立新种群，圈养饲养可以成为保护濒临灭绝物种的成功短期战略。提高圈养饲养的成功率需要特定的先验生态知识，例如栖息地和气候要求。在这里，我们报告了圈养饲养极度濒危的坎特伯雷多节象甲 Hadramphus tuberculatus (Pascoe, 1877)。已知的结核菌只有一个种群，估计种群数量不到 100 只；因此，如果能找到合适的地点，圈养饲养提供了增加剩余种群的机会，并有可能允许建立新种群。我们成功饲养了两只 F1 代成虫，并在项目结束时回收了两只活幼虫。我们使用定性空间分析来确定重新引入结核菌的可能地点的位置。空间分析表明，新的结核菌种群几乎没有合适的栖息地。我们的研究为未来的圈养繁殖计划提供了指导方针，并强调了将个体从已经脆弱的小种群中移除的风险。