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Disentangling effects of local and landscape variables on attractiveness of restored gravel‐sand pits for bat foraging activities
Land Degradation & Development ( IF 4.7 ) Pub Date : 2020-03-12 , DOI: 10.1002/ldr.3604
Christian Kerbiriou 1, 2 , Marion Parisot‐Laprun 3
Affiliation  

Despite the impacts of extraction activities, quarries have great potential for conservation of biodiversity, and their restoration can be considered a major task in restoration ecology. A particularly important issue is to quantify the roles of the following various factors that may influence biodiversity and restoration success: (a) local variables, (b) landscape variables and (c) ecological management. Following a multi‐model inference, we identify which variables were the most useful predictors of bat activity in gravel‐sand pits. We used data from 21 French gravel‐sand pits provided by the biodiversity‐monitoring scheme, ROSELIERE. Our results suggest that within these restored gravel‐sand pits, landscape variables appear to be better predictors of the attractiveness of restored gravel‐sand pits for the foraging activity of bats than local variables. Species or community indexes appeared to be more sensitive to landscape variables measured at a large scale (i.e., 1,000 m). Among local variables, the time elapsed after operation was a better predictor of bat foraging activity than the description of the habitat itself. The effect was more obvious within a site with an elapsed time since operation greater than 10 years. Our findings suggest that to increase the attractiveness of gravel‐sand pits for bat foraging activities, planning policies should consider not only the intrinsic characteristics of a project (i.e., local variables) but also the surrounding environment (i.e., landscape variables).

中文翻译:

局部和景观变量对恢复的砾石沙坑对蝙蝠觅食活动的吸引力的影响解开

尽管采掘活动产生了影响,但采石场在保护生物多样性方面具有巨大潜力,恢复采石被认为是恢复生态学的一项主要任务。一个特别重要的问题是量化可能影响生物多样性和恢复成功的以下各种因素的作用:(a)局部变量,(b)景观变量和(c)生态管理。经过多模型推断,我们确定了哪些变量是砂砾坑中蝙蝠活动的最有用预测因子。我们使用了由生物多样性监测计划ROSELIERE提供的21个法国砾石砂坑的数据。我们的结果表明,在这些恢复的砾石坑中,与局部变量相比,景观变量似乎更好地预测了恢复的砾石坑对蝙蝠觅食活动的吸引力。物种或群落指数似乎对大规模(即1,000 m)测量的景观变量更为敏感。在局部变量中,手术后经过的时间比蝙蝠的栖息地本身更能预测蝙蝠的觅食活动。自手术时间超过10年以来,在经过一段时间的现场效果更明显。我们的发现表明,为增加砾石坑对蝙蝠觅食活动的吸引力,规划政策不仅应考虑项目的固有特征(即局部变量),还应考虑周围环境(即景观变量)。物种或群落指数似乎对大规模(即1,000 m)测量的景观变量更为敏感。在局部变量中,手术后经过的时间比蝙蝠的栖息地本身更能预测蝙蝠的觅食活动。自手术时间超过10年以来,在经过一段时间的现场效果更为明显。我们的发现表明,为了增加砾石坑对蝙蝠觅食活动的吸引力,规划政策不仅应考虑项目的内在特征(即局部变量),还应考虑周围环境(即景观变量)。物种或群落指数似乎对大规模(即1,000 m)测量的景观变量更为敏感。在局部变量中,与描述栖息地本身相比,手术后经过的时间更好地预测了蝙蝠的觅食活动。自手术时间超过10年以来,在经过一段时间的现场效果更明显。我们的发现表明,为了增加砾石坑对蝙蝠觅食活动的吸引力,规划政策不仅应考虑项目的内在特征(即局部变量),还应考虑周围环境(即景观变量)。手术后经过的时间比蝙蝠的栖息地本身更能预测蝙蝠的觅食活动。自手术时间超过10年以来,在经过一段时间的现场效果更明显。我们的发现表明,为了增加砾石坑对蝙蝠觅食活动的吸引力,规划政策不仅应考虑项目的内在特征(即局部变量),还应考虑周围环境(即景观变量)。手术后经过的时间比蝙蝠的栖息地本身更能预测蝙蝠的觅食活动。自手术时间超过10年以来,在经过一段时间的现场效果更明显。我们的发现表明,为增加砾石坑对蝙蝠觅食活动的吸引力,规划政策不仅应考虑项目的固有特征(即局部变量),还应考虑周围环境(即景观变量)。
更新日期:2020-03-12
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