Productivity and Fledging Success of Trumpeter Swans in Yellowstone National Park, 1987–2007

Waterbirds ◽  
2010 ◽  
Vol 33 (3) ◽  
pp. 341-348 ◽  
Author(s):  
Kelly M. Proffitt ◽  
Terrence P. McEneaney ◽  
Patrick J. White ◽  
Robert A. Garrott
Author(s):  
Ruth Shea

This report summarizes the first of two field seasons investigating habitat selection, productivity, and human disturbance of Trumpeter Swans nesting in and near Yellowstone National Park (YNP). The study is supported by the Montana Cooperative Wildlife Research Unit, the National Park Service, the National Wildlife Federation, the Northern Rocky Mountain Cooperative Park Study Project, the Trumpeter Swan Society, and the Wildlife Management Institute. I wish to thank the personnel of the Biologist's Office, YNP, and of the Montana Cooperative Wildlife Research Unit for their vital assistance on numerous occasions.


Author(s):  
M. R. Edwards ◽  
J. D. Mainwaring

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.


2019 ◽  
Vol 53 (3) ◽  
pp. 309
Author(s):  
Lauren E. Walker ◽  
Lisa M. Baril ◽  
David B. Haines ◽  
Douglas W. Smith

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