The earliest stages of ecosystem succession in high-elevation (5000 metres above sea level), recently deglaciated soils
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منابع مشابه
The earliest stages of ecosystem succession in high-elevation (5000 metres above sea level), recently deglaciated soils.
Global climate change has accelerated the pace of glacial retreat in high-latitude and high-elevation environments, exposing lands that remain devoid of vegetation for many years. The exposure of 'new' soil is particularly apparent at high elevations (5000 metres above sea level) in the Peruvian Andes, where extreme environmental conditions hinder plant colonization. Nonetheless, these seemingl...
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15 صفحه اولEffect of moderate elevation above sea level on blood oxygen saturation in healthy young adults.
BACKGROUND Arterial hemoglobin oxygen saturation (SaO₂) decreases at an altitude of >1,500 m. There are no reports on normal SaO₂ at altitudes between 0 and 1,500 m. The clinical significance of decreased SaO₂ at such altitudes is unclear. OBJECTIVE To test the hypothesis that in healthy volunteers normal SaO₂ at moderate altitude (MA; 725 m) is lower than that at almost sea level (SL; 43 m)....
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ژورنال
عنوان ژورنال: Proceedings of the Royal Society B: Biological Sciences
سال: 2008
ISSN: 0962-8452,1471-2954
DOI: 10.1098/rspb.2008.0808