Demographic response to patch destruction in a spatially structured amphibian population

1. Economic activities such as logging and mineral extraction can result in the creation of new anthropogenic habitats that host specific biodiversity, including protected species. However, the legislation in many Western European countries requires the rehabilitation of ‘damaged’ areas following logging and mining operations, which can eliminate these early successional habitats. Conservation managers face a dilemma in these situations, but often lack knowledge about the impacts of environmental rehabilitation on the population dynamics of pioneer species and so are unable to take this into account in their actions. 2. We investigated the demography of a spatially structured population of an endangered amphibian (Bombina variegata) that uses waterbodies created by logging activities as breeding sites. Using capture–recapture (CR) data collected during a 9-year study period, we examined how the destruction of breeding patches due to environmental rehabilitation affected adult survival ...1. 伐木、采矿等经济活动可形成新的人为栖息地（anthropogenic habitats），为包括保护物种在内的特定生物类群提供生存场所。但多数西欧国家的立法要求，在伐木与采矿作业完成后，需对"受损"区域开展生态修复，该举措往往会消除这类早期演替栖息地。在此类场景中，保护管理者常陷入两难境地，却往往缺乏环境修复对先锋物种种群动态影响的相关认知，因此无法在决策中纳入该因素。 2. 本研究针对一种以伐木活动形成的水体作为繁殖位点的濒危两栖动物——黄脊铃蟾（Bombina variegata）的空间结构化种群开展种群统计学调查。基于为期9年的标记重捕（Capture-Recapture, CR）数据，本研究分析了环境修复导致的繁殖斑块消失对成体存活率的影响……