Systematics and Zoogeography of the Mer Rouge Pocket Gopher (Geomys breviceps breviceps) Based on Cytochrome-b Sequences

1994 ◽  
Vol 39 (3) ◽  
pp. 276 ◽  
Author(s):  
James W. Demastes
Keyword(s):  
Cytochrome B ◽  
Pocket Gopher ◽  
Geomys Breviceps

Some Habits of the Pocket Gopher, Geomys Breviceps Breviceps

1932 ◽  
Vol 13 (2) ◽  
pp. 126 ◽  
Author(s):  
Pennoyer F. English
Keyword(s):  
Pocket Gopher ◽  
Geomys Breviceps

Reproductive cycle of Baird's pocket gopher (Geomys breviceps) in northern Louisiana

2014 ◽  
Vol 59 (1) ◽  
pp. 115-117
Author(s):  
Matthew B. Connior ◽  
Douglas C. Cagle ◽  
Heather E. Peek ◽  
Christopher R. Ellington ◽  
John L. Hunt
Keyword(s):  
Reproductive Cycle ◽  
Pocket Gopher ◽  
Geomys Breviceps

Burrowing ecology of the rare and elusive Louisiana pine snake, Pituophis ruthveni (Serpentes: Colubridae)

2001 ◽  
Vol 22 (1) ◽  
pp. 91-101 ◽  
Author(s):  
John Himes
Keyword(s):  
Leaf Litter ◽  
Pine Plantations ◽  
Canopy Closure ◽  
Pocket Gopher ◽  
North Central ◽  
Pituophis Melanoleucus ◽  
Pine Snakes ◽  
Pine Snake ◽  
Geomys Breviceps

AbstractThe burrowing ecology of 12 adult and nine juvenile Louisiana pine snakes, Pituophis ruthveni, was studied during 1995-1997 in north-central Louisiana, U.S.A. Significantly more adult burrows connected to pocket gopher (Geomys breviceps) tunnels than did juvenile burrows, although a relatively high number of adult and juvenile snake burrows were blind-ended. Significantly more adult snake burrows were located in pine plantations and grasslands and significantly less were located in clearcuts than expected. Significantly more juvenile snake burrows were located in pine plantations than expected. Adult and juvenile snake burrows were located in areas that had relatively less leaf litter and canopy closure than expected. Excavation behavior by P. ruthveni was stereotyped and similar to excavation behavior by the bullsnake, Pituophis catenifer sayi and the northern pine snake, Pituophis melanoleucus melanoleucus.

Some Observations on Intra-Mitochondrial Crystals

1977 ◽  
Vol 35 ◽  
pp. 406-407
Author(s):  
J. A. Clarke ◽  
D. N. Landon ◽  
P. R. Ward
Keyword(s):  
Cytochrome B ◽  
Mitochondrial Myopathy ◽  
Crystallographic Analysis ◽  
Mitochondrial Membranes ◽  
Electron Microscopes ◽  
Muscle Biopsies

Intra-mitochondrial crystals have been noted in muscle biopsies from patients in a wide variety of diseased states. As far as we are aware, none of these crystals have been subjected to detailed crystallographic analysis. Recently, similar crystals were observed in a biopsy from a patient with a mitochondrial myopathy, characterised by a deficiency in reducible cytochrome b (Morgan-Hughes, J. A., Darveniza, P., Kahn, S. N., Landon, D. N., Sherratt, R. M., Land, J. M. and Clark, J. B., 1977, Brain, In Press). Aldehyde-fixed, osmicated resin imbedded material was examined using Siemens, JEOL and Phillips electron microscopes with goniometer specimen stages. The crystals generally lay between the outer and inner mitochondrial membranes and measured 1 - 3 μm in length and 0.1 - 0.3 μm in width. Characteristically, these crystals revealed specific periodicities.

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