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globalchange > 过去全球变化的重建

DOI:	10.1371/journal.pone.0133701
论文题名:	Deforestation and Forest Fragmentation in South Ecuador since the 1970s – Losing a Hotspot of Biodiversity
作者:	María Fernanda Tapia-Armijos; Jürgen Homeier; Carlos Iván Espinosa; Christoph Leuschner; Marcelino de la Cruz
刊名:	PLOS ONE
ISSN:	1932-6203
出版年:	2015
发表日期:	2015-9-2
卷:	10, 期:9
语种:	英语
英文关键词:	Forests ; Forest ecology ; Ecuador ; Conservation science ; Biodiversity ; Trees ; Ecosystems ; Rivers
英文摘要:	Deforestation and fragmentation are major components of global change; both are contributing to the rapid loss of tropical forest area with important implications for ecosystem functioning and biodiversity conservation. The forests of South Ecuador are a biological ‘hotspot’ due to their high diversity and endemism levels. We examined the deforestation and fragmentation patterns in this area of high conservation value using aerial photographs and Aster satellite scenes. The registered annual deforestation rates of 0.75% (1976–1989) and 2.86% (1989–2008) for two consecutive survey periods, the decreasing mean patch size and the increasing isolation of the forest fragments show that the area is under severe threat. Approximately 46% of South Ecuador’s original forest cover had been converted by 2008 into pastures and other anthropogenic land cover types. We found that deforestation is more intense at lower elevations (premontane evergreen forest and shrubland) and that the deforestation front currently moves in upslope direction. Improved awareness of the spatial extent, dynamics and patterns of deforestation and forest fragmentation is urgently needed in biologically diverse areas like South Ecuador.
URL:	http://journals.plos.org/plosone/article/file?id=10.1371/journal.pone.0133701&type=printable
Citation statistics:
资源类型:	期刊论文
标识符:	http://119.78.100.158/handle/2HF3EXSE/21837
Appears in Collections:	过去全球变化的重建影响、适应和脆弱性科学计划与规划气候变化与战略全球变化的国际研究计划气候减缓与适应气候变化事实与影响

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File Name/ File Size	Content Type	Version	Access	License
journal.pone.0133701.PDF（793KB）	期刊论文	作者接受稿	开放获取	CC BY-NC-SA	View Download

作者单位:

Sección de Ecología y Sistemática, Departamento de Ciencias Naturales, Universidad Técnica Particular de Loja, Loja, Ecuador;Plant Ecology, Albrecht von Haller Institute for Plant Sciences, University of Göttingen, Göttingen, Germany;Plant Ecology, Albrecht von Haller Institute for Plant Sciences, University of Göttingen, Göttingen, Germany;Sección de Ecología y Sistemática, Departamento de Ciencias Naturales, Universidad Técnica Particular de Loja, Loja, Ecuador;Plant Ecology, Albrecht von Haller Institute for Plant Sciences, University of Göttingen, Göttingen, Germany;Área de Biodiversidad y Conservación, Departamento de Biología y Geología, ESCET, Universidad Rey Juan Carlos, Madrid, Spain

Recommended Citation:

María Fernanda Tapia-Armijos,Jürgen Homeier,Carlos Iván Espinosa,et al. Deforestation and Forest Fragmentation in South Ecuador since the 1970s – Losing a Hotspot of Biodiversity[J]. PLOS ONE,2015-01-01,10(9)

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