Mountains support high biodiversity, often including endemic and vulnerable species, but they are also particularly sensitive to climate change. Whilst studies on mountain biodiversity at the species level common, that consider whole assemblages scarce. We assessed how an alpine bird assemblage varied in terms of ecological habitat niche by surveying birds point count sites placed along elevati...

This study analyzes multiyear data recorded by 21 stations along an elevation gradient (0–1045 m a.s.l.) in the Luquillo Mountains on rainfall and rainwater chemistry. The total ionic concentration volume exhibited inverse exponential relationship, with correlation coefficients ranging from –0.66 to –0.90. Furthermore, tended increase elevation, although a few stations, owing their geographical...

• The author has no financial conflicts of interest. cc This is an Open Access article distributed under the terms of the Creative Commons Attribution Non-Commercial License (http://creativecommons.org/licens-es/by-nc/3.0) which permits unrestricted non-commercial use, distribution, and reproduction in any medium, provided the original work is properly cited. Considerable variability exists for...

The geographical distribution of growing degree-days (GDDs) within Iran was studied using GIS-based maps. GDDs were calculated using daily thermal parameters (daily maximum and minimum air temperature). Based on the purpose of the study and climatic conditions of Iran, the average value of 5?C was chosen for GDD calculation. The calculations were carried out using daily weather data of 113 mete...

Resurveys of historical collecting localities have revealed range shifts, primarily leading edge expansions, which have been attributed to global warming. However, there have been few spatially replicated community-scale resurveys testing whether species' responses are spatially consistent. Here we repeated early twentieth century surveys of small mammals along elevational gradients in northern...

BACKGROUND The incidence of arrhythmic complications in Thai patients with acute coronary syndromes (ACS) has not been previously reported. The present study results will serve as the local database for future studies. OBJECTIVE To evaluate the incidence of arrhythmic complications in ASC in Thai patients and to identify factors that may affect arrhythmia complications in ACS patients. MATE...

Topical application of the tumor promoter 12-O-tetradecanoylphorbol-13-acetate (TPA) to SENCAR mouse skin results within 48 h in a 3-fold elevation of xanthine oxidase (XO) activity, an enzyme capable of generating the reactive oxygen species superoxide and hydrogen peroxide. The antiinflammatory steroid fluocinolone acetonide, an inhibitor of TPA-induced hyperplasia, as well as the multiple st...