Rana pipiens

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 partial definition of the fundamental niche of larval Rana pipiens (Ranidae, Amphibia).

3] exposure on thyroid hormone-and estrogen-responsive genes in Rana pipiens.

Effects of agricultural pesticides on the immune system of Xenopus laevis and Rana pipiens.

none Pseudacris crucifer none Pseudacris triseriata none Rana catesbeiana none Rana clamitans none Rana palustris none Rana pipiens Rana pipiens (all four) Rana sylvatica Rana sylvatica 10 3 Modern Field Guides New Search SALAMANDERS Necturus maculosus Necturus maculosus Ambystoma laterale cplx.

Acris crepitans blanchardi and Rana pipiens have disappeared from many historical localities in northwestern Indiana.

Other lipophilic chemicals in runoff may also play a role--recent studies found that exposing Rana pipiens tadpoles to extracted compounds from semipermeable membrane devices in freshwater ponds could cause malformation in the presence of UV radiation (Bridges et al.

1996) and to alter the rate of metamorphosis in Rana pipiens as well as in X.

Species- and age-related differences in susceptibility to pesticide exposure for two amphibians, Rana pipiens, and Bufo americanus.

Gynogenetic and hormonal sex reversal used in tests of the XX-XY hypothesis of sex determination in Rana pipiens.

Key words: amphibians, angiogenesis, endocrine-disrupting chemicals, estradiol, frogs, GABA, hypothalamus, Rana pipiens.

Effects of nitrate and atrazine on larval development and sexual differentiation in the northern leopard frog Rana pipiens.

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).