2024-03-29T06:09:26Zhttp://digital.csic.es/dspace-oai/requestoai:digital.csic.es:10261/350372018-09-11T09:21:02Zcom_10261_15com_10261_6col_10261_268
DIGITAL.CSIC
author
García, Luis V.
author
Marañón, Teodoro
author
Clemente Salas, Luis
funder
Ministerio de Medio Ambiente (España)
2011-04-27T13:33:59Z
2011-04-27T13:33:59Z
2002
Proceedings International Congress of the European Society of Soil ConservationMan and Soil at the Third Millenium Volume I: 705-712 (2002)
84-87779-46-8
http://hdl.handle.net/10261/35037
Seagull and rabbit proliferation in the Chafarinas Islands (three small semiarid
islets in NW Africa) has produced significant changes in physical and chemical properties
of the soil, as well as in plant cover. Analysis of preliminary data has shown that
soils in areas with a strong seabird influence were significantly higher in soluble salts
(electrical conductivity), macronutrients (total N, nitrate, phosphorous, potassium and
magnesium), and organic carbon, than soils located in areas with low seabird influence.
Water and nutrient retention capacity (related to saturation percentage) and bioavailability
of some heavy metal (Zn, Fe, Cd) were increased significantly in seabirdaffected
soils. No significant differences in other soil properties (such as soil texture
or carbonate contents) were found between seabird-affected and -unaffected areas. On
the other hand, percent of bare soil was significantly higher in seabird-affected areas,
whereas shrub cover was significantly decreased in those areas. Rabbit grazing (but
not seabird presence) strongly reduced above-ground biomass of herbaceous species
and soil seed bank density. As long as high seabird density and rabbit pressure significantly
reduce plant cover andlor biomass and increase percentage of bare soil, they
are relevant factors in conservation strategies of semiarid protected areas.
Management practices should be implemented to protect these arid, steep and shallow
soils against water erosion.
eng
openAccess
Seabirds
Rabbits
Soil salinity
Soil fertilization
Bare soil
Standing crop
Soil erosion
Animal influences on soil properties and plant cover in the Chafarinas Islands (NW Africa).
artículo
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URL
https://digital.csic.es/bitstream/10261/35037/1/Animal%20influences%20on%20soil%20properties%20and%20plant%20cover%20in%20the%20Chafarinas%20Islands%20%28NW%20Africa%29.pdf
File
MD5
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application/pdf
Animal influences on soil properties and plant cover in the Chafarinas Islands (NW Africa).pdf
URL
https://digital.csic.es/bitstream/10261/35037/4/Animal%20influences%20on%20soil%20properties%20and%20plant%20cover%20in%20the%20Chafarinas%20Islands%20%28NW%20Africa%29.pdf.txt
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MD5
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text/plain
Animal influences on soil properties and plant cover in the Chafarinas Islands (NW Africa).pdf.txt