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Topic: Northern Leopard Frog

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	Leopard Frog Directory
		Like all true frogs, leopard frogs have smooth moist skin and glandular ridges (dorsolateral folds) that separate the back from the sides of the body (the ridges in leopard frogs form the white lines seen on the back of the frog).
		Leopard frogs are semi aquatic and need a land area as well as a large enough body of water that they can submerge their bodies.
		A half land/half water tank is a good choice for leopard frogs and these can be set up a number of ways It is easiest in the long term to separate the land and water areas with a piece of plastic or Plexiglas placed across the aquarium and sealed with aquarium grade silicone sealant.
	www.grizzlyrun.com /Pets/Amphibians/Frogs/Leopard_Frog (890 words)

	Warner Nature Center : Northern Leopard Frog FAQ
		Leopard frogs are also often seen without much effort on our part; during their migration to their overwintering habitats, they frequently cross streets and highways in large groups.
		The easiest way to sex leopard frogs is by looking at the ears; males have ears larger than their eyes, whereas females have ears the same size as their eyes.
		These frogs are particularly difficult to catch and hold on to, not only due to their slimy, slippery, and toxic skin secretions (these secretions are protection against both disease and predation), but also because of their impressive leaping ability.
	www.smm.org /warnernaturecenter/programs/faq_leopard_frog.php (501 words)

	Northern Leopard Frog
		Northern leopard frogs are easily recognized by their slim bodies and leopard-like round, dark spots outlined with pale yellow and white.
		Northern leopard frog tadpoles and froglets are herbivores, feeding mostly on algae and other aquatic plants which they scrape off submerged rocks and twigs with a rasping mouth.
		Northern leopard frogs are one of the first amphibians to emerge from hibernation in the spring and they are the first prolonged breeder to start calling.
	www.northern.edu /natsource/AMPHIB1/Northe1.htm (1174 words)

	Northern Leopard Frog
		Description: The leopard frog is a slender, medium-sized frog; females range from 5.4 to 9.5 cm (2.1-3.7") snout-vent length, and males range from 5.2 to 8.2 cm (2-3.2").
		The pickerel frog, in contrast, has 2 parallel rows of evenly spaced, squarish spots and is colored a bright yellow-orange on the under surfaces of the hind legs.
		Leopard frog spots have light borders on a background of green and/or brown shades.
	www.umaine.edu /wetlands/FGleopard.htm (430 words)

	Leopard Frog
		Northern Leopard Frogs are brown to green frogs with three rows of irregularly arranged fl spots located on the dorsal surface.
		Northern Leopard Frogs range from southern Labrador south to Pennsylvania and Kentucky, and west into the Pacific states (Green and Pauley, 1987).
		Northern Leopard Frogs are commonly known as grass frogs, because they spend considerable amounts of time out of water foraging in meadows.
	www.marshall.edu /herp/Toads_Frogs/Leopard_Frog.htm (527 words)

	Rana pipiens -- Northern Leopard Frog
		Northern leopard frogs are strongly associated with the presence of a dense herbaceous layer.
		Northern leopard frogs are widespread and locally abundant in all of the northeastern Illinois Counties, and in parts of Lake County, Indiana.
		Northern leopard frogs are adaptable, and they will readily colonize restoration sites as long as emergent wetlands are present and hold water into mid-July most years, and surrounding areas with dense herbaceous vegetation are present.
	ebeltz.net /niftylinks/amphibians/ranapipi.html (647 words)

	Rana pipiens
		Ventrally, Northern Leopard Frog tadpoles are translucent with the intestines readily visible.
		Northern Leopard Frog eggs are small (1.5mm or 1/25 in.) in diameter and are laid in flattened spherical clusters.
		Northern Leopard Frogs are generally associated with heavily vegetated marshes, ponds, streams etc. Likewise, they seem to breed in areas that are also heavily vegetated.
	imnh.isu.edu /digitalatlas/bio/amph/anurans/rapi/Rapi.htm (470 words)

	Northern Leopard Frog, Rana pipiens (Site not responding. Last check: )
		Brown specimens of the leopard frog differ from pickerel frogs by having round spots scattered randomly about the about the back, and a greenish wash on the thighs.
		One variant of the northern leopard frog is found in Iowa; the Burnsi form is found from time to time about the state.
		Leopard frogs move considerable distances from water, especially in wet grasslands or damp woodlands.
	herpnet.net /Iowa-Herpetology/amphibians/frogs_toads/N.leopardFrog.html (435 words)

	WDFW -- Northern Leopard Frog Status Report
		Leopard frogs require permanent deep water for overwintering, in proximity to seasonal ponds and wetlands for breeding.
		Because leopard frogs move from breeding to summer to overwintering habitats, vehicles on roads are a significant mortality source.
		Due to the significant reduction in range and abundance of leopard frogs in Washington, and the continued threats to the remaining occupied sites, it is recommended that the leopard frog be classified as an endangered species in Washington.
	www.wdfw.wa.gov /wlm/diversty/soc/status/leopfrog/nlfxsum.htm (1140 words)

	Northern leopard frog - Rana pipiens (Site not responding. Last check: )
		Distribution and Status: Northern leopard frogs are widespread and locally abundant in all of the northeastern Illinois counties, and in parts of Lake County, Indiana.
		Habitat: Northern leopard frogs are strongly associated with the presence of a dense herbaceous layer.
		Northern leopard frogs are adaptable, and they will readily colonize restoration sites as long as emergent wetlands are present and holding water into mid-July most years, and surrounding areas with dense herbaceous vegetation are available.
	kmier.net /ecology/leopard.html (774 words)

	Northern Leopard Frog - Alberta Sustainable Resource Development
		The spotted frog is about the same size; however, its spots are much smaller and they lack the light rings around them.
		The northern leopard frog is currently on the Red List in the Status of Alberta Wildlife because it is considered to be in serious trouble.
		At one time leopard frogs were widely distributed in the eastern half of the province, but in the late 1970s they apparently declined dramatically.
	www.srd.gov.ab.ca /fw/amphib/nlf.html (526 words)

	SNFPA Draft SEIS -- Chapter 3: Affected Environment: Species of the Sierra Nevada -- Northern Leopard Frog
		Leopard frogs do not hibernate during winter, but activity levels are much reduced.
		Because leopard frogs migrate from breeding to summer to overwintering habitats, vehicles on roads are a significant mortality source.
		According to museum records, northern leopard frogs historically inhabited several isolated locations of California with most of the populations occurring in or near the Sierra Nevada.
	www.fs.fed.us /r5/snfpa/draft-seis/chapter3/nl-frog.htm (892 words)

	Rana pipiens - Northern Leopard Frog
		A medium-sized slender frog, 2 - 4 3/8 in.
		Typical of most frogs, the prey is located by vision, then a large sticky tongue is used to catch the prey and bring it into the mouth to eat.
		Jennings and Fuller determined in their 2004 report on the distribution of leopard frogs in California* that Northern leopard frogs are "...native to the region east of the Sierra nevada-Cascade crest....
	www.californiaherps.com /frogs/pages/r.pipiens.html (757 words)

	Leopard Frog, Watercolor
		Northern leopard frogs are found in Canada and the U.S. They grow to over four inches in length.
		Leopard frogs eat insects, spider, leeches, and snails.
		Read about deformities that have been found in concerning numbers of Leopard Frogs in Minnesota at Minnesota Department of Natural Resources.
	www.scientificillustrator.com /illustration/amphibians/leopard_frog.html (114 words)

	Earlham -- Biological Diversity -- Northern Leopard Frog
		As the northern leopard frog is not considered an endangered or threatened species in the United States, there are only a few organizations concerned with their conservation.
		The northern leopard frog is medium in size, averaging from two to five inches long.
		Northern leopard frogs also have glands in their skin that secrete poisons, which are strong enough to help them escape from their predators but are not harmful to humans (Encarta, 2001).
	www.earlham.edu /~sheaal/northernleopardfrog.htm (1582 words)

	Northern Leopard Frog
		The Northern Leopard Frog requires a mosaic of habitat types to meet the annual requirements of all life history stages.
		In Alberta, Northern Leopard Frogs are typically associated with clear water that is relatively fresh to moderately saline.
		Leopard Frog tadpoles are generally poorly adapted to cope with currents and thus can develop successfully only in slow reaches of streams or backwaters.
	www.abheritage.ca /abnature/speciesatrisk/leopard_frog_intro.htm (1035 words)

	Northern Leopard Frog [Rana pipiens]
		Until recently, one of the most common sounds in the national parks of western Canada was the low, throaty grunt of the northern leopard frog.
		Status: Once the most widespread frog species in North America, the number of northern leopard frogs began to decline in the mid 1960s.
		In 1990, only half of the remaining few leopard frog populations in Alberta were breeding successfully.
	raysweb.net /specialplaces/pages/frog.html (646 words)

	Northern Leopard Frog Page (Site not responding. Last check: )
		Occuring only in the bluegrass region of the state is the northern leopard frog, Rana pipiens.
		This frog can be distinguished from its cousin, the southern leopard frog, by the spot located on the tip of the northern leopard frogs' nose.
		This species is sometimes referred to as a "meadow frog" because of its habit of ranging far from water in the summer.
	bioweb.wku.edu /froglogger/nleopa~1.htm (176 words)

	Northern Leopard Frog - April Creature of the Month -- Minnesota Pollution Control Agency
		The northern Leopard Frog is native to Minnesota and is found all over the state.
		Leopard Frogs need moisture, so they like to live in or near streams, ponds, wetlands, lakes and wet meadows.
		The frogs breed in the spring and the females lay eggs that are encased in a soft jelly sac.
	www.pca.state.mn.us /kids/c-april.html (490 words)

	Northern Leopard Frog (Site not responding. Last check: )
		The Leopard Frog can be found in open area such as meadows and fields away from water.
		Leopard Frogs are found in open areas away from water while Pickerel Frogs are found near heavily wooded streams.
		Leopard Frogs are common throughout Ohio except for the lake plain area east of Cleveland where they have become rare.
	www.ohiohistorycentral.org /entry.php?rec=1027 (245 words)

	Frogs for Kids - Minnesota Pollution Control Agency
		Frogs absorb water through their skin so they don't need to drink.
		The eyes and nose of a frog are on top of its head so it can breathe and see when most of its body is under the water.
		The eggs of the marsupial frog are laid in a brood pouch on the mothers back and the young hatch out in a
	www.pca.state.mn.us /kids/frogsforkids.html (227 words)

	Northern Leopard Frog, Rana pipiens pipiens
		Distribution of the Northern Leopard Frog in Ohio.
		Adult Northern Leopard Frogs attain a snout-vent length of 5 to 9 cm (2 to 3 1/2 inches).
		Habitat: Northern Leopard Frogs inhabit wet meadows and vegetated stream and lake margins.
	www.ohioamphibians.com /frogs/northern_leopard_frog.html (281 words)

	Northern Leopard Frog (Site not responding. Last check: )
		The Northern Leopard Frog (Rana pipiens) is found through most of North America in freshwater or brackish marshes to wet fields.
		It can be sensitive to pesticides and insecticide runoff, that is not directly toxic, may destroy the insects that the frog depends on for food.
		There was a dramatic decline in Northern Leopard Frog numbers in the 1970's, but its status now is not clear.
	www.unl.edu /agnicpls/leofrog.html (76 words)

	EEK! - Critter Corner - Leopard Frog
		(This is why it's sometimes called the meadow frog.)
		Voice: A deep, rattling snore interspersed with "chuckling" or the sound of a thumb rubbing against a balloon; similar to pickerel frog.
		To listen to a northern leopard frog, click HERE.
	www.dnr.state.wi.us /org/caer/ce/eek/critter/amphibian/leopard.htm (81 words)

	DNR - Northern Leopard Frog (Rana pipiens)
		Browsers that can not handle javascript will not be able to access some features of this site.
		DESCRIPTION: The familiar "meadow frog" with dark round spots on a background of green, greenish brown or brown.
		Once the most abundant frog, but numbers have fallen in recent years for reasons that are unclear.
	www.michigan.gov /dnr/0,1607,7-153-10370_12145_12201-60114--,00.html (128 words)

	Northern Leopard Frog
		The Northern Leopard Frog is one of the first frogs to be heard in the spring.
		The males are usually solitary and keep some distance from its neighbor.
		Several species of frog and toad may be found in the watersheds.
	www.rivernen.ca /reptile1.htm (83 words)

	Northern Leopard Frog (Site not responding. Last check: )
		The colour of the frog is a green, or something like light brown.
		The Leopard Frog gets it's name from the fl leopard like spots on it's back.
		The Leopard Frog hunts for food at night, and during the day it hides in the grass or plants.
	members.shaw.ca /rjbiebrich2/MyWeb2/NorthernLeopardFrogJJ64.htm (163 words)

	Northern Leopard Frog (Site not responding. Last check: )
		The northern leopard frog (Rana pipiens) is found across northern North America.
		It mates and lays eggs in freshwater, where the tadpoles develop.
		This frog has commonly been used in schools as a dissection specimen.
	oregonstate.edu /~tennessj/rpipiens.htm (45 words)

	NDIS Northern Leopard Frog Wildlife Page (Site not responding. Last check: )
		Food and Predators: Little information is available on northern leopard frog food habits in Colorado, but invertebrates undoubtedly dominate the diet of adults.
		Reported predators on metamorphosed frogs in Colorado include the great blue heron (Ardea herodias) (D. and J. Ward, pers.
		Distribution: Southern Canada and northern United States south to Maryland, West Virginia, Kentucky, northern Illinois, extreme northwestern Missouri, Nebraska, New Mexico, Arizona, and eastern California (Stebbins 1985; Conant and Collins 1991).
	ndis.nrel.colostate.edu /wildlifespx.asp?SpCode=020191 (336 words)

	Online documentary video production/Nature & Wildlife - Chicago's Ravenswood Media
		Let us bring your message to the Internet.
		Frog calls and documentary video clips of scientists discussing frog issues, including declining amphibians and malformed frogs.
		What you can do about Declining Amphibian Populations
	www.midwestfrogs.com (123 words)

	NPWRC :: Checklist of Amphibian Species and Identification Guide
		To the uninitiated all frogs may look alike; ditto for salamanders (in the same manner that beginning birders are overwhelmed by the immense variety of small brown birds!).
		This Northern Prairie resource was previously a part of the North American Reporting Center for Amphibian Malformations (NARCAM) Web site.
		The NARCAM Web site is now operated by the National Biological Information Infrastructure (NBII) and has been incorporated into NBII's FrogWeb: Amphibian Declines and Deformities Web site.
	www.npwrc.usgs.gov /resource/herps/amphibid/index.htm (213 words)

	Northern Leopard Frog
		Natural History: This species often migrates from larger bodies of water, where they hibernate, to small shallow ponds to breed.
		This is the only leopard frog in Sandhills wetlands.
		Elongate dark spots on back, no white spot on eardrum, un broken dorsal lateral fold.
	snrs.unl.edu /herpneb/frog/NorthernLeopardFrog.html (88 words)

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