Black and White Preferences in the Frog, Rana Temporaria, and other Anura

1964 ◽  
Vol 41 (4) ◽  
pp. 865-877
Author(s):  
B. B. BOYCOTT ◽  
N. MROSOVSKY ◽  
W. R. A. MUNTZ
Keyword(s):  
Rana Temporaria ◽  
Underlying Mechanism ◽  
Negative Phototaxis ◽  
Biological Value ◽  
Positive Phototaxis ◽  
Black And White ◽  
Frog Rana Temporaria

1. Conditions are described in which the frog, Rana temporaria, selects the darker of two stimuli. 2. Some similar observations are reported for other amphibians. 3. Further experiments suggested that a dark starting area is a factor tending to decrease negative phototaxis. Forcing the frogs from the dark starting area decreased the scores for the darker of two stimuli. 4. No strong positive phototaxis was found in the present experiments. 5. In conditions giving negative phototaxis there is a slight preference for blue over green. 6. These results are compared to previous work and discussed in relation to the possible underlying mechanism and their biological value.

The First Record of Tesselated Snake, Natrix tesselata Laurenti, 1768 in the Central Chernozem Territory of Russia and Some Other Results of the Herpetological Research in the Upper Don

2011 ◽  
Vol 4 (2) ◽  
pp. 192-194
Author(s):  
Georgy A. Lada ◽  
V. Y. Nedosekin
Keyword(s):  
Rana Temporaria ◽  
First Record ◽  
Isolated Population ◽  
Common Frog ◽  
Northern Border ◽  
Frog Rana Temporaria ◽  
Bombina Bombina ◽  
Central Chernozem

A small isolated population of tesselated snake, Natrix tesselata was found in the Upper Don (Lipetsk Region, Russia). It is the first record of this species in the Central Chernozem Territory of Russia, which is separated from the northern border of the main range by the distance of about 200 km. An isolated population of common frog, Rana temporaria and phenetically peculiar population of fire-bellied toad, Bombina bombina are found here too. Faunistic aspect of new herpetological records is discussed.

Small woods positively influence the occurrence and abundance of the common frog (Rana temporaria) in a traditional farming landscape

2015 ◽  
Vol 36 (4) ◽  
pp. 417-424 ◽  
Author(s):  
Alexandre Boissinot ◽  
Pierre Grillet ◽  
Aurélien Besnard ◽  
Olivier Lourdais
Keyword(s):  
Western Europe ◽  
Rana Temporaria ◽  
Common Frog ◽  
Traditional Farming ◽  
Critical Determinant ◽  
Southern Margin ◽  
Frog Species ◽  
Frog Rana Temporaria ◽  
The Common ◽  
Extensive Farming

Traditional farming landscape in western Europe is made of a complex mosaic of pastures, cultures, ponds and hedgerows connected with woods. Previous observations in the common frog species suggest that lowland populations are closely associated to wood cover and our aim was to test the validity of this assumption. We studied common frog occurrence and abundance in western central France (Deux-Sèvres department) close to the southern margin of lowland distribution. Our results pointed out that the proportion of woods surface around sampled areas (1 ha) was a critical determinant of common frog presence and abundance. Extensive farming, which maintains a mosaic of small woods, may provide a robust conservation tool for this species.

Cryopreservation of spermatozoa obtained postmortem from the European common frog Rana temporaria

2021 ◽  
Author(s):  
Svetlana A. Kaurova ◽  
Victor K. Uteshev ◽  
Andrew B. Gapeyev ◽  
Natalia V. Shishova ◽  
Edith N. Gakhova ◽  
...  
Keyword(s):  
Rana Temporaria ◽  
Common Frog ◽  
Frog Rana Temporaria
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