نتایج جستجو برای: warm season

تعداد نتایج: 82529  

Journal: :تحقیقات جغرافیایی 0
مهدی نارنگی فرد دانشگاه شهید بهشتی داوود عاشورلو دانشگاه شهید بهشتی محمود احمدی دانشگاه شهید بهشتی

in urban areas the world over the past several decades was associated with an exponential growth of population, which led to widespread changes in land use urban and land cover. therefore, in this study, the daily temperature data from 1951 to 2010 at the synoptic station shiraz 60-year period were reviewed. then the average daily temperature average was five days into quintile. results of clus...

2013
N. P. McCann R. A. Moen T. R. Harris

Understanding howmoose (Alces alces (L., 1758)) are affected by temperature is critical for determiningwhy populations have recently declined at the southern extent of their North American range.Warm-season heat-stress thresholds of 14 and 20 °C are commonly used to study moose, but the variable response of free-ranging moose to temperatures above these thresholds suggests thatmoosemay bemore t...

2017
Digna Rueda-Roa Jeremy Mendoza Frank Muller-Karger Juan José Cárdenas Alina Achury Yrene Astor

The Sardinella aurita fishery off northeastern Venezuela, region of seasonal wind-driven coastal-upwelling, accounts for 90% of the Caribbean Sea small pelagic catch. This law-protected artisanal fishery takes place up to ~10 km offshore. The spatial distribution, number of schools, and biomass of S. aurita were studied using eight hydro-acoustic surveys (1995-1998). The study included the anal...

ژورنال: بوم شناسی آبزیان 2017

In this study, species composition, density and biomass of zooplanktons including Rotatoria, Protozoa and Meroplanktons were sampled using Juday net with mesh size of 100 µ at depths of 5, 10 and 20 meters in southern Caspian Sea (Babolsar) in two seasons of cold (Feb. 2015) and warm (June 2015) . This study identified Asplanchna sp. and Synchaeta sp. from Rotatoria, and Balanus sp., Pelecypoda...

Journal: :International journal of occupational medicine and environmental health 2009
Mieczysław Szyszkowicz Gilaad G Kaplan Eric Grafstein Brian H Rowe

OBJECTIVES We set out to examine associations between ambient air pollution concentrations and emergency department (ED) visits for migraine/headache in a multi-city study. MATERIALS AND METHODS We designed a time-series study of 64 839 ED visits for migraine (ICD-9: 346) and of 68 495 ED visits for headache (ICD-9: 784) recorded at hospitals in five different cities in Canada. The data (days...

2010
Robert A. Masters Kenneth P. Vogel

The effect of spring burning, fertilization, and atrazine on herbage yield of warmand cool-season grasses, flowering stalk density, and seed yield of selected warm-season grasses was determined on a remnant prairie and a restored prairie located near Lincoln and Center, Nebraska, respectively. Sites were burned in mid-April 1987 and followed by application of fertilizer (112 kg N/ha at the remn...

2016
Leila Heidari Andrea Winquist Mitchel Klein Cassandra O’Lenick Andrew Grundstein Stefanie Ebelt Sarnat

Identification of populations susceptible to heat effects is critical for targeted prevention and more accurate risk assessment. Fluid and electrolyte imbalance (FEI) may provide an objective indicator of heat morbidity. Data on daily ambient temperature and FEI emergency department (ED) visits were collected in Atlanta, Georgia, USA during 1993-2012. Associations of warm-season same-day temper...

Journal: :Journal of animal science 2013
C D Buckner T J Klopfenstein K M Rolfe W A Griffin M J Lamothe A K Watson J C MacDonald W H Schacht P Schroeder

Four experiments were conducted to evaluate RUP content and digestibility for smooth bromegrass, subirrigated meadow, upland native range, and warm-season grasses. Samples were collected from esophageally cannulated cows or ruminally cannulated steers. Forages were ruminally incubated in in situ bags for durations of time based on 75% of total mean retention time, which was based on IVDMD and r...

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