Potential biodiversity map of darkling beetles (Tenebrionidae): environmental characterization, land-uses and analyses of protection areas in Southern Patagonia
Potential biodiversity map of darkling beetles (Tenebrionidae): environmental characterization, land-uses and analyses of protection areas in Southern Patagonia
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DOI：
10.1007/s10841-019-00170-w
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发表时间：
2019-07
影响因子：
1.9
通讯作者：
Y. M. Rosas;P. Peri;R. Carrara;G. Flores;J. Pedrana;G. M. Martínez Pastur
中科院分区：
文献类型：
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作者：
Y. M. Rosas;P. Peri;R. Carrara;G. Flores;J. Pedrana;G. M. Martínez Pastur
基于区域尺度潜在生物多样性建模，制定了不同的物种管理和保护方法。然而，这些模型大多数都适用于保护伞物种（例如大型哺乳动物）而不是微型动物群。由于甲虫在干旱环境中的功能作用和脆弱性，应将其纳入其中以改进保护策略。基于不同潜在栖息地适宜性（PHS）地图的潜在生物多样性（MPB）地图可用于指示高生物多样性区域。首先，我们的目标是根据居住在圣克鲁斯省（阿根廷）的 10 种 PHS 地图，详细阐述暗甲虫（鞘翅目：拟甲虫科）的 MPB。然后，我们分析了 MPB、环境梯度和土地利用变量。我们探索了 41 个潜在变量来开发 PHS 地图。 MPB 被纳入 GIS 项目，并考虑气候和地形变量、生态区和土壤有机碳 (SOC) 储量、羊密度、荒漠化和保护区网络进行分析。模型显示它们的栖息地要求（例如温度）存在很大差异，其中边缘性（PHS 与可用条件不同）和专业化（PHS 的环境条件范围）决定了三个物种组。 MPB由东北部草原向东南部灌丛增加，且随SOC、羊密度和荒漠化程度的增加而升高。保护区内暗甲虫的 MPB 较低，与国家公园相比，省级保护区具有重要的保护作用。 MPB 让我们了解了环境和人类使用之间的潜在权衡。这为我们提供了制定管理和保护新战略（例如节约土地）的工具。
Different methodologies had been developed for species management and conservation based on modelling of potential biodiversity at regional scales. However, most of these models were fitted for umbrella species (e.g. big mammals) rather than micro-fauna. Beetles should be included to improve conservation strategies due to their functional roles and vulnerability in arid environments. The maps of potential biodiversity (MPB) based on different potential habitat suitability (PHS) maps are useful to indicate high biodiversity areas. Firstly, we aim to elaborate a MPB of darkling beetles (Coleoptera: Tenebrionidae) based on 10 species PHS maps inhabiting Santa Cruz Province (Argentina). Then, we analysed the MPB an environmental gradients and land-use variables. We explored 41 potential variables to develop PHS maps. The MPB was included into a GIS project, and was analysed considering climatic and topographic variables, ecological areas and soil organic carbon (SOC) stock, also sheep density, desertification and protected area network. The modelled showed great variability in their habitat requirements (e.g. temperature), where marginality (PHS differs from the available conditions) and specialization (environmental condition range of PHS) determined three species groups. MPB increased from grasslands in the NE to shrublands in the SE, and was higher with SOC, sheep density and desertification degree. Protection areas included lower MPB for darkling beetles, where provincial reserves have a major conservation role compared with national parks. MPB allowed us to understand the potential trade-offs with the environment and human uses. This gave us a tool to development new strategies (e.g. land-sparing) for management and conservation.