Wetland Feeding Site Use by White Ibises (Eudocimus albus) Breeding in Coastal South Carolina

1997 ◽  
Vol 20 (2) ◽  
pp. 167 ◽  
Author(s):  
Toni L. De Santo ◽  
James W. Johnston ◽  
Keith L. Bildstein
Keyword(s):  
South Carolina ◽  
Feeding Site ◽  
Eudocimus Albus ◽  
Site Use

Daily feeding site use of urban pigeons

1984 ◽  
Vol 62 (7) ◽  
pp. 1425-1428 ◽  
Author(s):  
Louis Lefebvre ◽  
Luc-Alain Giraldeau
Keyword(s):  
Individual Differences ◽  
Columba Livia ◽  
Feeding Site ◽  
Daily Feeding ◽  
Daily Schedule ◽  
Site Use

Small flocks (20–40 individuals) of feral rock doves (Columba livia) studied in downtown Montréal follow a bimodal daily schedule of feeding site attendance. The bimodal schedule is achieved through a summation of different usage schedules in the various areas of the sites. The latter schedules are not necessarily bimodal and reveal clear differences between individuals that otherwise share some common feeding areas. The existence of these individual differences has implications for two of the mechanisms by which flock feeding may benefit birds, information centres, and the skill pool.

scholarly journals Sleeping site use of the white-headed langur Trachypithecus leucocephalus: The role of predation risk, territorial defense, and proximity to feeding sites

2011 ◽  
Vol 57 (3) ◽  
pp. 260-268 ◽  
Author(s):  
Dayong Li ◽  
Qihai Zhou ◽  
Xiaoping Tang ◽  
Henglian Huang ◽  
Chengming Huang
Keyword(s):  
Central Area ◽  
Central Place ◽  
Feeding Site ◽  
Trachypithecus Leucocephalus ◽  
Sleeping Site ◽  
First Feeding ◽  
Site Use ◽  
Sleeping Sites ◽  
Contrast Group ◽  
Central Place Forager

Abstract We collected data on sleeping site use from two groups of white-headed langurs Trachypithecus leucocephalus living in Fusui Nature Reserve, China between August 2007 and July 2008. This information was used to test several hypotheses regarding ultimate causes of sleeping site use in this primate. White-headed langurs slept either in caves (17 sites) or on a cliff ledge (one site). They used all sleeping sites repeatedly, and reused some of them on consecutive nights; three nights was the longest consecutive use of any one sleep site. We suggest that langurs use sleeping sites to make approach and attack by predators difficult, and to increase their own familiarity with a location so as to improve chances for escape. Langurs’ cryptic behaviors with an increased level of vigilance before entering sleeping sites may also help in decreasing the possibility of detection by predators. Group 1 spent more sleeping nights in the central area of their territory than expected; in contrast, group 2 spent more sleeping nights in the periphery of their territory, which overlaps with that of another groups, than expected. The position of sleeping site relative to the last feeding site of the day and the first feeding site of the subsequent morning indicated a strategy closer to that of a multiple central place forager than of a central place forager. These results suggest that territory defense and food access may play an important role in sleeping site use of white-headed langurs.

scholarly journals Performance Evaluation of a Respirator Vortex Cooling Device

2018 ◽  
Vol 140 (5) ◽  
Author(s):  
Ashley D. Elizondo ◽  
Robert K. Iacovone
Keyword(s):  
South Carolina ◽  
Vortex Tube ◽  
The United States ◽  
Statistical Test ◽  
United States Department ◽  
Test Plan ◽  
Product Analysis ◽  
Site Use ◽  
Mechanical Devices ◽  
Vortex Tubes

The United States Department of Energy's Savannah River Site (SRS) in Aiken, South Carolina, is dedicated to promoting site-level, risk-based inspection practices to maintain a safe and productive work environment. Protective suits are worn by personnel working in contaminated environments. These suits require that cooling be applied to keep the interior temperature within safe and comfortable limits. A vortex tube, also known as the Ranque-Hilsch vortex tube (RHVT), can provide the necessary cooling. As mechanical devices void of moving components, vortex tubes separate a compressed gas into hot and cold streams—the air emerging from the “hot” end reaching a temperature of 433.2 K and the air emerging from the “cold” end reaching a temperature of 241.5 K (Hilsch, 1946, “Die Expansion Von Gasen Im Zentrifugalfeld Als Kälteprozeß,” Z. Für Naturforsch., 1, pp. 208–214). Routing the cold stream of the vortex tube to the user's protective suit facilitates the required cooling. Vortex tubes currently in use at SRS are preset, through modification solely by and within the SRS respiratory equipment facility (REF), to provide a temperature reduction between 22.2 and 25.0 K. When a new model of vortex tube capable of user adjustment during operation recently became available, prototype testing was conducted for product comparison. Ultimately, it was identified that similar cooling performance between the old and new models is achievable. Production units were acquired to be subjected to complete product analysis at SRS utilizing a statistical test plan. The statistical test plan, data, thermodynamic calculations, and conclusions were reviewed to determine acceptability for site use.

scholarly journals Distribución y abundancia de las Aves Marinas residentes y migratorias en El Estero de la Comuna El Real, Provincia de Santa Elena

2017 ◽  
Vol 4 (1) ◽  
pp. 61-68
Author(s):  
Tanya González Banchón ◽  
Rina Álvarez Arce
Keyword(s):  
Single Species ◽  
Feeding Site ◽  
Eudocimus Albus ◽  
Sea Birds ◽  
Ardea Alba ◽  
Himantopus Mexicanus ◽  
Egretta Thula ◽  
Santa Elena ◽  
Pelecanus Occidentalis

El estero de la Comuna El Real en la Provincia de Santa Elena – Ecuador, es utilizado como un sitio de descanso y alimentación por varias especies de aves marinas. El estudio permitió conocer la distribución y abundancia de las aves marinas residentes y migratorias mediante 35 monitoreos durante los meses de noviembre, diciembre del 2014 y enero del 2015. Se registraron 12 especies de aves con un total de 62020 ind., Fregata magnificens; 816 ind., Himantopus mexicanus; 182 ind., Anas bahamensis; 119 ind., Nictanassa violácea; 66 ind., Egretta thula; 57 ind., Actitis maculariu; 29 ind., Pelecanus occidentalis; 20 ind., Ardea alba; 15 ind., Platalea ajaja; 14 ind., Pelecanus thagus; 6 ind., Jacana jacana; 1 ind., Eudocimus albus. Los Índices de Simpson, Shannon Wiener y Pielou para noviembre 0,0344; 0,11; 0,0458, diciembre 0,04195; 0,132; 0,0573 y enero 0,04711; 0,1444; 0,0581, demostraron que el lugar de estudio es un hábitat poco diverso en cuanto a variedad de especies pero abundante para una sola especie de la familia Fregatidae cuyas agrupaciones fueron georreferenciadas a lo largo de las riberas del estero El Real. AbstractThe estuary of the El Real Commune in the Province of Santa Elena - Ecuador, is used as a resting and feeding site for several species of seabirds. The study allowed to know the distribution and abundance of resident and migratory seabirds through 35 monitoring during the months of November, December, 2014 and January, 2015. There were 12 species of birds with a total of 62020 ind., Fregata magnificens; 816 ind., Himantopus mexicanus; 182 ind., Anas bahamensis; 119 ind., Nictanassa violacea; 66 ind., Egretta thula; 57 ind., Actitis maculariu; 29 ind., Pelecanus occidentalis; 20 ind., Ardea alba; 15 ind., Platalea ajaja; 14 ind., Pelecanus thagus; 6 ind., Jacana jacana; 1 ind., Eudocimus albus. The Simpson, Shannon Wiener and Pielou Indexes for November 0.0344; 0.11; 0.0458, December 0.04195; 0.132; 0.0573 and January 0.04711; 0.1444; 0.0581, showed that the study site is a habitat that is not diverse in variety of species but abundant for a single species of the Fregatidae family whose groupings were georeferenced along the shores of the El Real estuary.Keywords: Sea birds, distribution, abundance, habitat, georeferencing.

An Ultrastructural Comparison of Hepatocytes from ADH+ and ADH−Peromyscus Maniculatus

1996 ◽  
Vol 54 ◽  
pp. 30-31
Author(s):  
J. T. Ellzey ◽  
D. Borunda ◽  
B. P. Stewart
Keyword(s):  
South Carolina ◽  
Adult Male ◽  
Uranyl Acetate ◽  
Model System ◽  
Deer Mice ◽  
En Bloc ◽  
Genetic Stock ◽  
Hepes Buffer ◽  
Transmission Electron ◽  
Color Scanner

Genetically alcohol deficient deer mice (ADHN/ADHN) (obtained from the Peromyscus Genetic Stock Center, Univ. of South Carolina) lack hepatic cytosolic alcohol dehydrogenase. In order to determine if these deer mice would provide a model system for an ultrastructural study of the effects of ethanol on hepatocyte organelles, 75 micrographs of ADH+ adult male deer mice (n=5) were compared with 75 micrographs of ADH− adult male deer mice (n=5). A morphometric analysis of mitochondrial and peroxisomal parameters was undertaken.The livers were perfused with 0.1M HEPES buffer followed by 0.25% glutaraldehyde and 2% sucrose in 0.1M HEPES buffer (4C), removed, weighed and fixed by immersion in 2.5% glutaraldehyde in 0.1M HEPES buffer, pH 7.4, followed by a 3,3’ diaminobenzidine (DAB) incubation, postfixation with 2% OsO4, en bloc staining with 1% uranyl acetate in 0.025M maleate-NaOH buffer, dehydrated, embedded in Poly/Bed 812-BDMA epon resin, sectioned and poststained with uranyl acetate and lead citrate. Photographs were taken on a Zeiss EM-10 transmission electron microscope, scanned with a Howtek personal color scanner, analyzed with OPTIMAS 4.02 software on a Gateway2000 4DX2-66V personal computer and stored in Excel 4.0.

Use of the AMA Guides in State Workers' Compensation Systems: 2009 Update

2009 ◽  
Vol 14 (2) ◽  
pp. 13-16
Author(s):  
Christopher R. Brigham ◽  
Jenny Walker
Keyword(s):  
New York ◽  
North Carolina ◽  
South Carolina ◽  
South Dakota ◽  
Rhode Island ◽  
Workers Compensation ◽  
Fourth Edition ◽  
Sixth Edition ◽  
Specific Guideline ◽  
Compensation Systems

Abstract The AMAGuides to the Evaluation of Permanent Impairment (AMA Guides) is the most widely used basis for determining impairment and is used in state workers’ compensation systems, federal systems, automobile casualty, and personal injury, as well as by the majority of state workers’ compensation jurisdictions. Two tables summarize the edition of the AMA Guides used and provide information by state. The fifth edition (2000) is the most commonly used edition: California, Delaware, Georgia, Hawaii, Kentucky, New Hampshire, Idaho, Indiana, Iowa, Kentucky, Massachusetts, Nevada, North Dakota, Ohio, Vermont, and Washington. Eleven states use the sixth edition (2007): Alaska, Arizona, Louisiana, Mississippi, Montana, New Mexico, Oklahoma, Pennsylvania, Rhode Island, Tennessee, and Wyoming. Eight states still commonly make use of the fourth edition (1993): Alabama, Arkansas, Kansas, Maine, Maryland, South Dakota, Texas, and West Virginia. Two states use the Third Edition, Revised (1990): Colorado and Oregon. Connecticut does not stipulate which edition of the AMA Guides to use. Six states use their own state specific guidelines (Florida, Illinois, Minnesota, New York, North Carolina, and Wisconsin), and six states do not specify a specific guideline (Michigan, Missouri, Nebraska, New Jersey, South Carolina, and Virginia). Statutes may or may not specify which edition of the AMA Guides to use. Some states use their own guidelines for specific problems and use the Guides for other issues.

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