Selection of Egg Deposition Sites: A Seasonal Shift in the Southern Leopard Frog, Rana sphenocephala

Copeia ◽  
1986 ◽  
Vol 1986 (1) ◽  
pp. 249 ◽  
Author(s):  
Janalee P. Caldwell
Keyword(s):  
Leopard Frog ◽  
Rana Sphenocephala ◽  
Egg Deposition ◽  
Seasonal Shift ◽  
Selection Of

Selection of sites for egg deposition and spawning dynamics in the waccamaw darter

1984 ◽  
Vol 11 (2) ◽  
pp. 107-112 ◽  
Author(s):  
David G. Lindquist ◽  
John R. Shute ◽  
Peggy W. Shute ◽  
L. Michael Jones
Keyword(s):  
Egg Deposition ◽  
Selection Of

Development and characterization of 18 microsatellite loci for the Southern Leopard Frog, Rana sphenocephala

2010 ◽  
Vol 3 (2) ◽  
pp. 267-269 ◽  
Author(s):  
Anna M. McKee ◽  
Stacey L. Lance ◽  
Kenneth L. Jones ◽  
Cris Hagen ◽  
Travis C. Glenn
Keyword(s):  
Microsatellite Loci ◽  
Leopard Frog ◽  
Rana Sphenocephala

Behaviour and growth of southern leopard frog (Rana sphenocephala) tadpoles: effects of food and predation risk

2001 ◽  
Vol 79 (5) ◽  
pp. 809-814 ◽  
Author(s):  
K J Babbitt
Keyword(s):  
Food Resource ◽  
Leopard Frog ◽  
Rana Sphenocephala ◽  
Food Treatment ◽  
Leopard Frogs ◽  
Resource Level ◽  
Size At Metamorphosis ◽  
Interesting Possibility ◽  
Limited Food ◽  
Level I

I examined the effects of a nonlethal predator, larvae of the odonate Anax junius, and food-resource level on behaviour and growth of larval southern leopard frogs (Rana sphenocephala) to test whether the strength of effects of a nonlethal predator was influenced by background resource level. I crossed two levels of food resources, growth-limiting and non-growth-limiting, with the presence or absence of A. junius. Tadpoles responded to predators by altering spatial distribution and activity. When predators were present, tadpoles on both food treatments had similar low levels of activity, but tadpoles on the nonlimiting food treatment showed a much larger reduction in activity than tadpoles on the growth-limiting treatment. Tadpoles on both food treatments delayed metamorphosis when exposed to predators. Growth and size at metamorphosis were affected significantly by food treatment but not by predator treatment. However, the direction of response to predators differed. Tadpoles on the growth-limiting treatment were larger at metamorphosis and grew faster when exposed to predators; the opposite was true for tadpoles on the non-growth-limited food treatment. This raises the interesting possibility that for some species experiencing low resource availability, predators may induce a behaviourally mediated positive effect on growth.

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