1983: Physiology of the sternoradialis muscle: sexual dimorphism and role in amplexus in the leopard frog (
Rana pipiens).
Prior to the use of modern pesticides, there are several early reports of hermaphroditism and feminization in, but not limited to, the ranid frogs
Rana pipiens (Northern Leopard Frog; King 1910), Rana sylvatica (Wood Frog; Cheng 1929), Pelophylax esculentus (Edible Frog; Mitrophanow 1894), Pelophylax ridibundus (Marsh Frog; Friedmann 1898), and Rana temporaria (European Common Frog; Bourne 1884; Marshall 1884).
(1983) studied the occurrence of members of the family Enterobacteriaceae and Aeromonas hydrophilia in the intestinal tract of leopard frogs (
Rana pipiens) by using a series of biochemical tests.
Moore, "Geographic variation of adaptive characters in
Rana pipiens Schreber," Evolution, vol.
Effects of atrazine and nitrate on the northern leopard frog (
Rana pipiens) larvae exposed in the laboratory from posthatch through metamorphosis.
Three new species of Leopard Frogs (
Rana pipiens Complex) from The Mexican Plateau.
Effects of nitrate and atrazine on larval development and sexual differentiation in the northern leopard frog
Rana pipiens. Environ Toxicol Chem 25:65-71.
Animals comprised 81.7% of the total volume and included several groups of insects (Anisoptera, Coleoptera, Diptera, Ephemeroptera, Hemiptera, Megaloptera, Trichoptera, and Zygoptera), snails (Physa), fish (Agosia chrysogaster), frogs (
Rana pipiens), crayfish (Pro cambarus), and ostracods.
These sites have produced approximately 4000 amphibian captures of six different species: one salamander (Ambystoma tigrinum) and five frogs (Rana sylvatica,
Rana pipiens, Bufo cognatus, Pseudacris maculata, and Scaphiopus bombifrons).
Positions 1-305 are in cytochrome b; the remainder are in 12S rRNA Species Nucleotide position Haplotype 28 42 45 69 144 219 288 336 451 612 655 Rana clamitans Hap 1 A C T C G C T C T A G Hap 2 * * * * * * * T * * * Hap 3 G * * T A * * * * * * Hap 4 G * * * A * * * * * *
Rana pipiens Hap 1 G C A C T A C A T G A Hap 2 * * * * * T * * * * * Hap 3 * * * * * * T * * * * Rana sylvatica Hap 1 G C C C A C T C C G G Hap 2 * * T * * * * * * * * Hap 3 * T * * * * * * * * * Hap 4 * * * * * * * * * A * Hap 5 * * * * * T * * * * * Hap 6 A * * * * * * * T * * Hap 7 * * * * * * * * * * A
A survey of the helminths parasitic in Rana catesbeiana Shaw and
Rana pipiens Schreber from Brazos County, Texas, and vicinity.
Rana pipiens - common North American green or brownish frog having white-edged dark oval spots