Continued Invasion by an Introduced Frog (Rana berlandieri): Southwestern Arizona, Southeastern California, and Rio Colorado, Mexico

2002 ◽  
Vol 47 (1) ◽  
pp. 12 ◽  
Author(s):  
James C. Rorabaugh ◽  
Michael J. Sredl ◽  
Verma Miera ◽  
Charles A. Drost
Keyword(s):  
Rana Berlandieri

scholarly journals Responses to Acute Aquatic Hypoxia in Larvae of the Frog Rana Berlandieri

1983 ◽  
Vol 104 (1) ◽  
pp. 79-95 ◽  
Author(s):  
MARTIN E. FEDER
Keyword(s):  
Heart Rate ◽  
Oxygen Consumption ◽  
Body Size ◽  
Gas Exchange ◽  
Total Oxygen ◽  
Oxygen Loss ◽  
Anuran Larvae ◽  
Ventilation Frequency ◽  
Gill Ventilation ◽  
Rana Berlandieri

The oxygen consumption of larvae of the frog Rana berlandieri Baird was reduced during exposure to aquatic hypoxia at 25°C, and under severe hypoxia the larvae lost oxygen to the water. The larvae responded to aquatic hypoxia by increasing aerial oxygen consumption and lung ventilatory frequency, and also by altering their heart rate and gill ventilation frequency. Under severe or prolonged aquatic hypoxia without access to air, Rana larvae accumulated lactate. When prevented from breathing air, the larvae were unable to compensate fully by increasing their aquatic oxygen consumption. Body size or the interaction of body size and oxygen partial pressure significantly affected the aerial oxygen consumption, the total oxygen consumption and gill ventilation frequency, but did not affect other aspects of larval gas exchange. Anuran larvae resemble air-breathing fishes in some responses to aquatic hypoxia (e.g. increased dependence upon aerial oxygen uptake and changes in ventilatory frequencies), but are unusual in some ways (e.g. oxygen loss to the water). The interactions of body size and hypoxia are not sufficient to explain why so many anuran larvae without lungs are small.

Phylogeny of the Mexican coastal leopard frogs of the Rana berlandieri group based on mtDNA sequences

2004 ◽  
Vol 30 (1) ◽  
pp. 38-49 ◽  
Author(s):  
Alejandro Zaldı́var-Riverón ◽  
Virginia León-Regagnon ◽  
Adrián Nieto-Montes de Oca
Keyword(s):  
Mtdna Sequences ◽  
Leopard Frogs ◽  
Rana Berlandieri

Diet of the Rio Grande Leopard Frog (Rana berlandieri) in Texas

2004 ◽  
Vol 38 (1) ◽  
pp. 127-130 ◽  
Author(s):  
Melissa L. Parker ◽  
Michael I. Goldstein
Keyword(s):  
Rio Grande ◽  
Leopard Frog ◽  
Rana Berlandieri
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