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IF 3.4 2区环境科学与生态学 Q2 ECOLOGY

Journal of Biogeography Pub Date : 2025-01-20 DOI:10.1111/jbi.15090

Stella Manes, Diogo S. B. Rocha, Luiz Oliveira, Luisa Fernanda Liévano-Latorre, Juliana M. de Almeida-Rocha, Renata Capellão, Carlos Leandro Cordeiro, Viviane Dib, Eduardo Lacerda, Agnieszka Latawiec, Julia Niemeyer, Fernando Resende, Rafael Loyola

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引用次数: 0

摘要

目的土地利用和土地覆盖（LULC）变化是生物多样性丧失的主要驱动因素，导致栖息地丧失和破碎化，阻碍物种移动并对种群产生负面影响。虽然栖息地碎片在结构上是不相连的，但根据物种的扩散能力，功能上的连通性仍然可以发生。将景观连通性纳入恢复规划有助于确定战略区域，显著增强连通性。在这里，我们提出了一个前所未有的全国性连续空间层，代表了每个可恢复像素对功能连通性的贡献，并以巴西为例进行了研究。位置巴西。我们对每个巴西生物群系进行了基于像素的动态分析，以评估恢复景观中每个可恢复像素所带来的整体连通性指数（IIC）的潜在增长。为此，我们定义了具有中等、高和非常高扩散能力的假设物种，并计算了每个生物群系不同自然LULC的IIC。然后，我们运行了一个动态的基于像素的恢复分析，以评估每个可恢复像素对功能连接的贡献。我们的数据集代表了景观中每个可恢复像素的连通性的相对贡献，考虑了每个生物群系的所有分散能力和LULC。由于我们正在评估单个像素对整体生物群落景观连通性的贡献，因此大多数值预期较低。然而，对连通性贡献最大的像素显示了生物群系范围内的独立贡献，因此被解释为恢复的优先事项。值得注意的是，我们将嵌套的区域显示为恢复的优先级，具有更高优先级排名的趋势（例如，最重要的前5%的区域）被随后的优先级排名所包围。我们的研究首次评估了恢复规划工作对巴西所有生物群系功能连通性的影响。我们在每个巴西生物群系中确定了优先恢复区域，为指导决策和政策实施提供了有价值的信息。研究中使用的创新的基于像素的分析可以在其他地区复制，旨在提高恢复规划的效率。

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Planning for the Restoration of Functional Connectivity in Brazil

Aim

Land use and land cover (LULC) change is the main driver of biodiversity loss, causing habitat loss and fragmentation that hinders species movement and negatively impacts populations. While habitat fragments are structurally disconnected, functional connectivity can still occur depending on the species' dispersal abilities. Incorporating landscape connectivity into restoration planning helps identify strategic areas significantly enhancing connectivity. Here, we present an unprecedented, nationwide continuous spatial layer representing each restorable pixel's contribution to functional connectivity, using Brazil as a case study.

Location

Brazil.

Methods

We performed a dynamic pixel-based analysis across each Brazilian biome to assess the potential increases in the Integral Index of Connectivity (IIC) resulting from restoring each restorable pixel in the landscape. For that, we defined hypothetical species with medium, high and very high dispersal abilities and calculated the IIC for the different natural LULC in each biome. Then, we ran a dynamic pixel-based restoration analysis to assess the contribution of each restorable pixel to functional connectivity.

Results

Our resulting dataset represents the relative contribution of connectivity for each restorable pixel in the landscape, considering all dispersal abilities and LULC in each biome. Since we are assessing the contributions of individual pixels to overall biome landscape connectivity, most values are expectedly low. However, pixels with the highest contributions to connectivity show a stand-alone contribution biome-wide and thus were interpreted as priorities for restoration. Notably, we show nested regions as priorities for restoration, with a trend of higher priority rankings (e.g., the top 5% most important regions) being surrounded by subsequent rankings of priorities.

Main Conclusions

Our study is the first to evaluate the impact of restoration planning efforts on functional connectivity across all Brazilian biomes. We identified priority areas for restoration within each Brazilian biome, providing valuable information to guide decision-making and policy implementation. The innovative pixel-based analysis used in the study can be replicated in other regions, aiming to make restoration planning more efficient.

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来源期刊

Journal of Biogeography 环境科学-生态学

CiteScore

7.70

自引率

5.10%

发文量

203

审稿时长

2.2 months

期刊介绍： Papers dealing with all aspects of spatial, ecological and historical biogeography are considered for publication in Journal of Biogeography. The mission of the journal is to contribute to the growth and societal relevance of the discipline of biogeography through its role in the dissemination of biogeographical research.