A broad compilation of modern carbon isotope compositions in all C3 plant types shows a monotonic increase in δ(13)C with decreasing mean annual precipitation (MAP) that differs from previous models. Corrections for temperature, altitude, or latitude are smaller than previously estimated. As corrected for altitude, latitude, and the δ(13)C of atmospheric CO(2), these data permit refined interpr...

Vegetation restoration on slopes is generally difficult, especially in high altitude areas since the environment has dramatically changing weather conditions that are not suitable for plant growth. In this study, potential of film mulching vegetation such environments and growth nutrients artificial soil were determined. Experiments carried out Jiuzhaigou County, Sichuan Province, to determine ...

Environ. En!om,,!. 12: 1892-1897 (1983) ABSTRACT We determined the susceptibility of the Colorado potato beetle, Leptinotarsa decem/ineata (Say) to the fungal pathogen Beauveria bassiana (Balsamo)when reared on So/anum tuberosum L., So/anum dulcamara L., So/anum carolineme L., and Lycopersicwn escu/entum Miller growing in both the field and greenhouse. With the exceptionof L. escu/entwn, the ho...

As TeV gamma-ray astronomy progresses into the era of Cherenkov Telescope Array (CTA), there is a desire for capacity to instantaneously follow up on transient phenomena and continuously monitor flux at energies above $10^{12}$ eV. To this end, worldwide network Imaging Air Telescopes (IACTs) required provide triggers CTA observations complementary continuous monitoring. An IACT array sited in ...

The potential effect of invasive plant species on biodiversity is one of most important subject of inquiry at present. In many parts of the world, the alarming spread of these plants has been documented. Knowing that climate exerts a dominant control over the distribution of plant species, predictions can therefore be made to determine which areas the species would likely spread under a climate...

Human population and cities are growing fast, with a concomitant modification of the land surface. Urbanization is driving biodiversity loss biological homogenization, which impacts human wellbeing. In this study, we evaluated influence urbanization on flower visitor assemblage using an interaction network approach. We assessed effect different variables at local landscape scales community para...

Exposure to high altitude imposes significant strain on cardiopulmonary system and the brain. As a consequence, sojourners to high altitude frequently experience sleep disturbances, often reporting restless and sleepless nights. At altitudes above 3,000 meters (9,800 ft) almost all healthy subjects develop periodic breathing especially during NREM sleep. Sleep architecture gradually improves wi...