Trophic Control of Fishless Ponds by Tiger Salamander Larvae

Oikos ◽  
1994 ◽  
Vol 71 (1) ◽  
pp. 55 ◽  
Author(s):  
Joseph R. Holomuzki ◽  
James P. Collins ◽  
Paul E. Brunkow
Keyword(s):  
Tiger Salamander ◽  
Salamander Larvae

Head and Body Size Relationships in Polymorphic Tiger Salamander Larvae from Colorado

Copeia ◽  
1998 ◽  
Vol 1998 (4) ◽  
pp. 1089 ◽  
Author(s):  
Judy P. Sheen ◽  
Howard H. Whiteman
Keyword(s):  
Body Size ◽  
Tiger Salamander ◽  
Salamander Larvae

Morphology and escape performance of tiger salamander larvae (Ambystoma tigrinum mavortium)

2003 ◽  
Vol 297A (2) ◽  
pp. 147-159 ◽  
Author(s):  
Benjamin M Fitzpatrick ◽  
Michael F. Benard ◽  
James A. Fordyce
Keyword(s):  
Ambystoma Tigrinum ◽  
Tiger Salamander ◽  
Escape Performance ◽  
Salamander Larvae

Foraging under the risk of cannibalism leads to divergence in body size among tiger salamander larvae

Oecologia ◽  
2000 ◽  
Vol 124 (2) ◽  
pp. 225-231 ◽  
Author(s):  
R. E. Ziemba ◽  
M. T. Myers ◽  
J. P. Collins
Keyword(s):  
Body Size ◽  
Tiger Salamander ◽  
Salamander Larvae

Amacrine and ganglion cell contributions to the electroretinogram in amphibian retina

2001 ◽  
Vol 18 (1) ◽  
pp. 147-156 ◽  
Author(s):  
GAUTAM AWATRAMANI ◽  
JUE WANG ◽  
MALCOLM M. SLAUGHTER
Keyword(s):  
Contrast Agents ◽  
Ganglion Cell ◽  
Neuronal Activity ◽  
Opposite Effect ◽  
Cell Function ◽  
Ganglion Cells ◽  
Field Potential ◽  
Tiger Salamander ◽  
Third Order ◽  
Light Responses

The neuronal generators of the b- and d-waves of the electroretinogram (ERG) were investigated in the tiger salamander retina to determine if amacrine and ganglion cells contribute to this field potential. Several agents were used that affect third-order neurons, such as tetrodotoxin, baclofen, and NMDA agonists and antagonists. Baclofen, an agent that enhances light responses in third-order neurons, increased the d-wave and reduced the b-wave. In contrast, agents that decrease light responses in third-order neurons had the opposite effect of enhancing the b-wave and depressing the d-wave. The effect on the d-wave was particularly pronounced. The results indicate that third-order neuronal activity influences b- and d-waves of the ERG. The opposing actions suggest that the b-wave to d-wave ratio might serve as an measure of ganglion cell function.

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