Birds of the Iztaccíhuatl-Popocatépetl National Park and their significance for ecotourism

2003 ◽  
pp. 73-101
Author(s):  
Alejandro Meléndez-Herrada ◽  
Nuri Trigo Boix ◽  
Aurora Chimal-Hernández
Keyword(s):  
National Park

Ultrastructural Localization of Phycocyanin in the Acidophilic, Thermophilic Alga, Cyanidium Caldarium

1973 ◽  
Vol 31 ◽  
pp. 462-463
Author(s):  
M. R. Edwards ◽  
J. D. Mainwaring
Keyword(s):  
Yellowstone National Park ◽  
National Park ◽  
Ultrastructural Localization ◽  
Review Of Literature ◽  
Cyanidium Caldarium ◽  
Taxonomic Rank ◽  
Thin Sections ◽  
Standard Methods ◽  
Laboratory Cultures

Although the general ultrastructure of Cyanidium caldarium, an acidophilic, thermophilic alga of questionable taxonomic rank, has been extensively studied (see review of literature in reference 1), some peculiar ultrastructural features of the chloroplast of this alga have not been noted by other investigators.Cells were collected and prepared for thin sections at the Yellowstone National Park and were also grown in laboratory cultures (45-52°C; pH 2-5). Fixation (glutaraldehyde-osmium), dehydration (ethanol), and embedding (Epon 812) were accomplished by standard methods. Replicas of frozenfracture d- etched cells were obtained in a Balzers apparatus. In addition, cells were examined after disruption in a French Press.

Evaluation of national park soundscapes based on aircraft type

2011 ◽  
Author(s):  
Levi Zitting ◽  
Britton Mace ◽  
Grant Corser
Keyword(s):  
National Park ◽  
Aircraft Type

Philanthropy and the National Park Service

2013 ◽  
Author(s):  
Jacqueline Vaughn ◽  
Hanna J. Cortner
Keyword(s):  
National Park ◽  
National Park Service ◽  
Park Service

2. Occupational Exposure to Snowmobile Emissions at Yellowstone National Park

2005 ◽  
Author(s):  
W. Campbell ◽  
D. Stephenson ◽  
R. Morris ◽  
T. Spear
Keyword(s):  
Occupational Exposure ◽  
Yellowstone National Park ◽  
National Park ◽  
Snowmobile Emissions
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