Because we conducted trials with tadpoles in New Mexico and Louisiana in different ambient water conductivities, we standardized the power density thresholds for bullfrog and
leopard frog tadpoles to an ambient water conductivity of 100 [micro]S/cm using the formula:
Fish and Wildlife Service's (Service) Partners for Fish and Wildlife Program to improve Moreno Spring for the benefit of Chihuahua chub and Chiricahua
leopard frog. The Partners for Fish and Wildlife Program is a cost-share program whereby private landowners can conduct wildlife conservation work in partnership with the expertise and funding provided by the Service.
Cave Cave Wooded Perimeter Species Entrance Interior Sinkhole Area Blanchard's Cricket Frog X X X American Toad X X X X Fowler's Toad X Gray Treefrog complex X X X Plains
Leopard Frog X X X X American Bullfrog X X X X Pickerel Frog X X X X Southern
Leopard Frog X X X Spring Peeper X X X X Western Chorus Frog X X Eastern Spadefoot X X X Long-tailed Salamander X X X Northern Slimy Salamander X X Copperhead X X North American Racer X X Milksnake X Common Watersnake X Rough Greensnake X Western Ratsnake X X X Dekay's Brownsnake X Common Gartersnake X X X Broad-headed Skink X X Painted Turtle X X Common Snapping Turtle X Eastern Box Turtle X X Pond Slider X Total (26) 14 11 13 24
Lethal and sublethal effects of chronic cadmium exposure on northern
leopard frog (Rana pipiens) tadpoles.
Growth and survival of northern
leopard frog (Rana pipiens) tadpoles exposed to two common pesticides.
Effects of poly-chlorinated biphenyl 126 on green frog (Rana clamitans) and
leopard frog (Rana pipiens) hatching success, development, and metamorphosis.
Among these species are the masked bobwhite (Colinus virginianus ridgwayi), cactus ferruginous pygmy-owl (Glaucidium brasilianum cactorum), Sonoran pronghorn (Antilocapra americana sonoriensis), Mexican and narrow-headed gartersnakes (Thamnophis eques and T rufipunctatus), Gila topminnow (Poeciliopsis occidentalis), Tarahumara frog (Lithobates tarahumarae), lowland
leopard frog (Lithobates yavapaiensis), and Chiricahua
leopard frog.
A natural protein isolated from the
leopard frog, ONCONASE has been shown in the laboratory and clinic to target cancer cells while sparing normal cells.
The northern
leopard frog uses its eyeballs to help it eat and retracts its eyeballs into its body to push the food down.
They copied a molecule, found only in the egg cells of the northern
leopard frog, which invades tumour cells and destroys them from the inside.
Scientists at Bath University copied a molecule found only in the egg cells of the Northern
Leopard frog which invades tumour cells and destroys them from the inside.
He also performed a series of similar experiments using a common native species, the northern
leopard frog. Hayes found that doses of atrazine as low as .1 ppb again caused various degrees of "sex reversal" in about a third of the males, and that some of the animals also displayed a freakish abnormality that Hayes had not seen in Xenopus: eggs forming in their testes.