地中海校园的土壤解封:蚂蚁群落的驱动因素是什么?

IF 2.5 3区 环境科学与生态学 Q2 BIODIVERSITY CONSERVATION
Louise Eydoux, Pierre Jay Robert, Bernard Kaufmann, Mickael Hedde, Alan Vergnes
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引用次数: 0

摘要

土壤解封,即去除不透水土壤表层的过程,越来越受到城市规划政策的倡导。人们对土壤解封区域在生物多样性保护(尤其是土壤生物多样性)方面的作用,尤其是在了解土壤生物多样性在这些新生境中的重新定殖动态方面,研究仍然严重不足。此外,土壤解封后形成的各种土壤覆盖可能会影响重新定殖动力学。这项研究主要针对位于法国地中海沿岸 14 所学校操场的 79 块未封闭地块,通过在未封闭地块上放置 485 个诱饵来调查蚂蚁群落。研究考虑了两个变量:土壤未密封的时间(1 年或 2 年)和土壤覆盖的类型(木屑、覆盖木屑的种植园或草坪)。值得注意的是,这些未封闭区域在建成后的最初几年就成为了蚂蚁的栖息地:观察到了丰富的蚂蚁物种(21 种;占地区物种库的五分之一和法国本土物种的 10%)。此外,蚂蚁群落在一年内就发生了显著变化:与一年内未封闭的地块相比,两年内未封闭的地块的蚂蚁丰度和物种丰富度指数明显更高。然而,这些空间的构造会影响目前的群落,与其他地面覆盖物类型相比,木屑覆盖区域的蚂蚁数量和丰富程度明显较低。这些发现是一个很有希望的起点,为了解此类项目在保护土壤生物多样性方面的潜力提供了启示。
本文章由计算机程序翻译,如有差异,请以英文原文为准。

Soil unsealing in Mediterranean schoolyards: what factors drive ant communities?

Soil unsealing in Mediterranean schoolyards: what factors drive ant communities?

Soil unsealing, the process of removing the impermeable top layer of soil, is increasingly advocated by urban planning policies. The role of unsealed areas in biodiversity conservation, particularly soil biodiversity, remains strongly understudied and especially in understanding the recolonization dynamics of soil biodiversity in these new habitats. Besides, the various types of soil cover resulting from soil unsealing could potentially influence the recolonization kinetics. This study focused on 79 unsealed plots located in 14 schoolyards along the French Mediterranean coast, investigating ant communities through the placement of 485 baits on unsealed plots. Two variables were considered: the duration since soil unsealing (1 or 2 years) and the type of soil cover (wood chips, plantations mulched with wood chips or lawns). Remarkably, these unsealed areas act as habitats for ants from their very first years of creation: a rich number of ant species (21 species; a fifth of the regional pool and 10% of the metropolitan French species) has been observed. Additionally, notable changes in ant communities were evident within a single year: plots unsealed for 2 years exhibited significantly higher indices of ant abundance and species richness compared to those unsealed for 1 year. However, the construction of these spaces influences the present communities, with wood chip-covered areas significantly less rich and abundant in ants compared to other ground cover types. These findings represent a promising starting point and offer insights into the potential of such projects for soil biodiversity conservation.

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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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