薄壁弯曲蝗生境适宜性模型(Hagen, 1888)及其在淡水资源保护中的应用

Q2 Environmental Science Acta Limnologica Brasiliensia Pub Date : 2022-01-01 DOI:10.1590/s2179-975x9719
Alison Bramuth, H. Paprocki
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引用次数: 0

摘要

摘要/ Abstract摘要:目的通过建立burmeisteri弯曲菌生境适宜性模型,对河道质量及其保护提供依据。方法建模需要25条发生记录,其中12条作为训练数据,13条作为测试数据。研究区包括一个300公里的缓冲区,覆盖在发生记录上。我们使用一组22个环境层作为环境数据,如下:19个生物气候变量在Worldclim上可用;来自Worldclim的高度;坡度,在ArcGis v10.3中以海拔为变量进行地理处理得到;和排水密度由Ambdata提供。使用模糊逻辑对这些层进行变换,以表示连续变化,从而在主成分分析后选择最重要的数据。为了指示新的调查区域,我们定义了发生概率显著且远离发生点的位置。最后,利用卫星影像对espinhaarso Range生物圈保护区周边10公里的缓冲带进行了环境完整性观测,分析了潜在的河道质量。结果9个新增调查区中,发生概率最高的区域集中在河间区和保护单元附近。以espinhaarso Range生物圈保护区为研究对象,划分了7个生境适宜性较好的区域。利用卫星图像对该区域进行了观测,其中5个区域具有较高的生态完整性。有两个地区受到采矿活动的影响。结论该物种的分布格局证实了该物种作为良好水质生物指标的特征。据估计,该方法可适用于其他生物指标。源头和低阶支流所在的地区必须得到保护,因为它们对维持各自流域内的水质至关重要。
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A habitat suitability modeling of Campylocia burmeisteri (EPHEMEROPTERA: Euthyplociidae) (Hagen, 1888) and its application on freshwater resources conservation
Abstract: Aim This paper aims to make inferences about the quality of watercourses, and its conservation, through the habitat suitability model of Campylocia burmeisteri. Methods The modelling demanded twenty-five occurrence records, twelve as training data and thirteen as test data. The study area consisted of a 300 kilometers buffer zone applied over the occurrence records. We used a set of twenty-two environmental layers as ambient data, as follows: 19 bioclimatic variables available on Worldclim; altitude from Worldclim; slope, obtained through geoprocessing in ArcGis v10.3 with altitude variable; and drainage density provide by Ambdata. These layers were transformed by the use of fuzzy logic to represent a continuous variation, and thus the most significant data was select after a PCA. To indicated to new surveys areas, we define locations with significant occurrence probability and distant from occurrence points. And, lastly, we observed the environmental integrity to analyze the potential watercourse quality, by using satellite images, in a buffer zone of ten kilometers from Espinhaço Range Biosphere Reserve. Results The chosen regions with the highest occurrence probability, which account for 9 new survey areas, are concentrated in interfluvial areas and near conservation units. We performed an analysis focused on the region of the Espinhaço Range Biosphere Reserve and delimited seven areas that presented good habitat suitability. The region was observed using satellite images, and five of the areas presented high ecological integrity. Two areas showed impacts from mining activity. Conclusions The distribution pattern corroborates the features of the species as a bioindicator of good water quality. It is estimated that this methodology can be adapted and applied to other bioindicators. The areas where headwaters and low-order tributaries are present must be conserved, because they are fundamental for maintaining the quality within the respective watershed.
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来源期刊
Acta Limnologica Brasiliensia
Acta Limnologica Brasiliensia Environmental Science-Ecology
CiteScore
2.20
自引率
0.00%
发文量
17
审稿时长
50 weeks
期刊最新文献
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