Effect of exotic species management on the recovery of relict forests through citizen participation

IF 2.5 3区 环境科学与生态学 Q2 BIODIVERSITY CONSERVATION
Nihaib Flores-Galicia, Erick Gutiérrez, Irma Trejo
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Abstract

In the cities, remnants of the vegetation that originally occupied these areas can be found. Exotic species have established in these relicts, and therefore these spaces require management aimed at recovering native vegetation. In this study, we evaluated the impact of the removing exotic species on the floristic composition of the remnants of an oak forest. We compared the abundance/cover and composition of exotic plants in a forest that has been managed through citizen participation with that of reference forests (both with remnants, but the former without protection and the latter with protection). We established 48 sampling sites to characterize the vegetation in three strata (upper, middle, and low) and monitored changes in composition in managed forest sites for a period of 3 years. The results indicate that the managed forest hosts different species than those found in the reference forests, with lower abundance and cover of exotic plants in the upper and lower strata. Regarding temporal changes, we observed shifts in floristic composition before and after management activities, and a reduction in the cover of exotic species before and after management, with consistently low cover three years later. This underscores the effectiveness of citizen-led management activities, offering a viable alternative for restoring native vegetation in urban environments.

Abstract Image

外来物种管理对通过公民参与恢复孑遗森林的影响
在城市中,可以发现这些地区原来的植被遗迹。外来物种已经在这些遗迹中生长,因此需要对这些空间进行管理,以恢复本地植被。在这项研究中,我们评估了移除外来物种对橡树林遗迹植物组成的影响。我们比较了通过公民参与管理的森林与参照森林(均有残迹,但前者未受保护,后者受保护)中外来植物的丰度/覆盖率和组成。我们建立了 48 个取样点,以描述三个层(上层、中层和低层)的植被特征,并在 3 年时间里监测受管理森林中植被组成的变化。结果表明,人工林中的物种与参照林中的物种不同,上层和下层中外来植物的丰度和覆盖率较低。在时间变化方面,我们观察到管理活动前后植物组成的变化,以及管理前后外来物种覆盖率的降低,三年后覆盖率持续较低。这凸显了市民主导的管理活动的有效性,为在城市环境中恢复本地植被提供了一种可行的选择。
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来源期刊
Urban Ecosystems
Urban Ecosystems BIODIVERSITY CONSERVATION-ECOLOGY
CiteScore
5.70
自引率
6.90%
发文量
113
期刊介绍: Urban Ecosystems is an international journal devoted to scientific investigations of urban environments and the relationships between socioeconomic and ecological structures and processes in urban environments. The scope of the journal is broad, including interactions between urban ecosystems and associated suburban and rural environments. Contributions may span a range of specific subject areas as they may apply to urban environments: biodiversity, biogeochemistry, conservation biology, wildlife and fisheries management, ecosystem ecology, ecosystem services, environmental chemistry, hydrology, landscape architecture, meteorology and climate, policy, population biology, social and human ecology, soil science, and urban planning.
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