{"title":"Connectivity dynamics of Araucaria forest and grassland surrounding Passo Fundo National Forest, southern Brazil","authors":"Eliziane Carla Scariot, Dayana Almeida, José Eduardo dos Santos","doi":"10.1016/j.ncon.2015.05.001","DOIUrl":null,"url":null,"abstract":"","PeriodicalId":49776,"journal":{"name":"Natureza & Conservacao","volume":"13 1","pages":"54-59"},"PeriodicalIF":0.0000,"publicationDate":"2015-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1016/j.ncon.2015.05.001","citationCount":"9","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Natureza & Conservacao","FirstCategoryId":"1085","ListUrlMain":"https://www.sciencedirect.com/science/article/pii/S1679007315000134","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"","JCRName":"","Score":null,"Total":0}
引用次数: 9
巴西南部Passo Fundo国家森林周围Araucaria森林和草原的连通性动态
保护区周围自然栖息地结构的变化干扰了生物多样性保护措施。本研究的目的是分析1986年、1997年和2011年巴西RS Passo Fundo国家森林周围三个景观水平的植被破碎和损失,并确定这些斑块的孤立/连通程度。这些分析是基于等级和补丁级别的景观指标。从1986年到2011年,植被占用的面积在三个景观级别上都有所增加,同时森林遗迹之间的距离也有所缩短。在其他两个级别的景观中,保护区的森林覆盖率较高。这种情况表明,该地区的农业扩张减少,栖息地丧失和破碎化过程减弱。然而,目前保护区外植被的比例(19%)对许多物种来说仍然至关重要。
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