The Influence of Changing Prey Availability on the Prevalence ofDiphyllobothriumin River Otters from Yellowstone National Park

2015 ◽  
Vol 101 (2) ◽  
pp. 240-243 ◽  
Author(s):  
Jamie R. Crait ◽  
Antoinette D. McIntosh ◽  
Ellis C. Greiner ◽  
Merav Ben-David
2006 ◽  
Vol 156 (1) ◽  
pp. 189-192 ◽  
Author(s):  
Jamie R. Crait ◽  
Gail M. Blundell ◽  
Kaithryn E. Ott ◽  
Jason K. Herreman ◽  
Merav Ben-David

1998 ◽  
Vol 76 (10) ◽  
pp. 1960-1963 ◽  
Author(s):  
Eric M Gese

Territoriality is an important mechanism by which social carnivores limit or exclude potential competitors from mates, food, and space. The response of neighboring conspecifics to social disruption in an adjacent social unit has been rarely documented, owing to the difficulty of observing secretive or nocturnal carnivores. We observed 54 coyotes (Canis latrans) from five resident packs, plus five transient animals, for 2507 h from January 1991 to June 1993 in the Lamar River Valley, Yellowstone National Park, Wyoming. We documented the spatial response of three neighboring coyote packs to the social disruption in an adjacent fourth pack caused by the death of the alpha male and subsequent temporary abandonment of the territory by the alpha female. One of the three packs shifted its space-use pattern into part of the adjacent pack's territory and maintained occupancy of the newly acquired area even when the alpha female returned with a new mate. Neither food shortage nor prey availability was a contributing factor. The absence of the alpha pair maintaining territorial boundaries allowed the adjacent pack to take over part of the unoccupied area.


2010 ◽  
Vol 143 (5) ◽  
pp. 1144-1153 ◽  
Author(s):  
William R. Wengeler ◽  
Douglas A. Kelt ◽  
Michael L. Johnson

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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