نتایج جستجو برای: cold season

تعداد نتایج: 159045  

Journal: :Tree physiology 2017
Allison M Chan David R Bowling

Productivity of conifers in seasonally snow-covered forests is high before and during snowmelt when environmental conditions are optimal for photosynthesis. Climate change is altering the timing of spring in many locations, and changes in the date of transition from winter dormancy can have large impacts on annual productivity. Sap flow methods provide a promising approach to monitor tree activ...

2013
Yuan Luo Yonghui Zhang Tao Liu Shannon Rutherford Yanjun Xu Xiaojun Xu Wei Wu Jianpeng Xiao Weilin Zeng Cordia Chu Wenjun Ma

BACKGROUND Many studies have found extreme temperature can increase the risk of mortality. However, it is not clear whether extreme diurnal temperature range (DTR) is associated with daily disease-specific mortality, and how season might modify any association. OBJECTIVES To better understand the acute effect of DTR on mortality and identify whether season is a modifier of the DTR effect. M...

Journal: :Revista de biologia tropical 2013
Yuself R Cala Alberto de Jesús-Navarrete Frank A Ocaña José Oliva-Rivera

The queen conch Eustrombus gigas is an important fisheries resource in the Caribbean region. In Cuba Island the studies about this resource are very scarce and particularly in the Southeastern regions of the country. With the aim to get important fishery information about this gastropod, adult Queen Conch density and frequency of reproductive activity were evaluated in Cabo Cruz, Cuba, during 2...

2015
Guihua Yi Tingbin Zhang Yu-Pin Lin

The Tibetan Plateau is a key area for research on global environmental changes. During the past 50 years, the climate in the Siling Co lake area has become continuously warmer and wetter, which may have further caused the increase in Siling Co lake area. Based on the Siling Co lake area (2003 to 2013) and climate data acquired from the Xainza and Baingoin meteorological stations (covering 1966 ...

2016
Xiangxu Zou Hui Zhang Jie Zuo Penghe Wang Dehua Zhao Shuqing An

To identify the facilitation effect of a cool-season aquatic macrophyte (FEam) for use in effluent purification via constructed floating wetlands (CFWs) and to determine the possible pathways used during a winter period with an average temperature of less than 5 °C, pilot-scale CFWs were planted with the cold-season macrophyte Oenanthe clecumbens and were operated as batch systems. Although som...

2015
Tavershima Dzenda Joseph O Ayo Victor O Sinkalu Lukuman S Yaqub

This study was carried out to determine heart rate (HR) values, including diurnal, seasonal, and sex patterns, in the African giant rat (Cricetomys gambianus, Waterhouse). HR was measured using stethoscope in grip-restrained African giant rats of either sex (103 bucks and 98 does), live-trapped from a tropical Savannah, and caged individually in the laboratory during the harmattan (cold-dry), h...

2017
John Murray

buted by the natives to a punishment inflicted by Devi on the high priest at Kiddernath. The first notice of the appearance of the plague in India dates from the beginning of the present century, when there were cases of typhus, with occasional buboes. In 1816-17 plague raged in Kattywar, and continued to prevail till 1821, when it was seen by Dr. O'Shaughnessy, who is now in London, and has su...

Journal: :Atmospheric Chemistry and Physics 2012

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