Arid
DOI10.3390/f7040091
Recovery of Vegetation Cover and Soil after the Removal of Sheep in Socorro Island, Mexico
Ortiz-Alcaraz, Antonio1,2; Maya-Delgado, Yolanda1; Cortes-Calva, Patricia1; Aguirre-Munoz, Alfonso2; Rojas-Mayoral, Evaristo2; Cordoba-Matson, Miguel V.1; Ortega-Rubio, Alfredo1
通讯作者Maya-Delgado, Yolanda
来源期刊FORESTS
EISSN1999-4907
出版年2016
卷号7期号:4
英文摘要

For over 140 years, the habitat of Socorro Island in the Mexican Pacific has been altered by the presence of exotic sheep. Overgrazing, jointly with tropical storms, has caused soil erosion, and more than 2000 hectares of native vegetation have been lost. Sheep eradication was conducted from 2009 to 2012. Since then, the vegetation has begun to recover passively, modifying soil properties. The objective of our study was to verify that this island was resilient enough to be recovered and in a relatively short time scale. To confirm our hypothesis, we analyzed changes in the physical-chemical properties of the soil and vegetation cover, the last one in different times and habitats after sheep eradication. The change in vegetation cover was estimated by comparing the normalized difference vegetation index (NDVI) between 2008 and 2013. In sites altered by feral sheep, soil compaction was assessed, and soil samples were taken, analyzing pH, electrical conductivity, organic carbon, total nitrogen, phosphorus, calcium, and magnesium. After a year of total sheep eradication, clear indications in the recovery of vegetation cover and improvement of soil quality parameters were observed and confirmed, specifically compaction and nitrogen, organic carbon, phosphorus, and calcium. The results seem to support our hypothesis.


英文关键词feral sheep soil erosion soil recovery Socorro Island
类型Article
语种英语
国家Mexico
收录类别SCI-E
WOS记录号WOS:000375210700019
WOS关键词FERAL SHEEP ; HERBIVORES ; DESERTIFICATION ; ERADICATION ; IMPACT
WOS类目Forestry
WOS研究方向Forestry
资源类型期刊论文
条目标识符http://119.78.100.177/qdio/handle/2XILL650/193007
作者单位1.Ctr Invest Biol Noroeste, SC Av Inst Politecn Nacl 195, La Paz 23096, Bcs, Mexico;
2.Grp Ecol & Conservac Islas, AC Moctezuma 836, Ensenada 22800, Baja California, Mexico
推荐引用方式
GB/T 7714
Ortiz-Alcaraz, Antonio,Maya-Delgado, Yolanda,Cortes-Calva, Patricia,et al. Recovery of Vegetation Cover and Soil after the Removal of Sheep in Socorro Island, Mexico[J],2016,7(4).
APA Ortiz-Alcaraz, Antonio.,Maya-Delgado, Yolanda.,Cortes-Calva, Patricia.,Aguirre-Munoz, Alfonso.,Rojas-Mayoral, Evaristo.,...&Ortega-Rubio, Alfredo.(2016).Recovery of Vegetation Cover and Soil after the Removal of Sheep in Socorro Island, Mexico.FORESTS,7(4).
MLA Ortiz-Alcaraz, Antonio,et al."Recovery of Vegetation Cover and Soil after the Removal of Sheep in Socorro Island, Mexico".FORESTS 7.4(2016).
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