Green and Black Dart Poison Frog (Dendrobates auratus)

Dendrobates auratus, Green and black poison dart frog, Family Dendrobatidae, La Selva, Costa Rica-4676leastconcernGreen and Black Dart Poison Frog (Dendrobates auratus) is a poison dart frog from the family Dendrobatidae. They are native to Colombia, Costa Rica, Nicaragua, and Panama. They were introduced in Hawaii in the 1930’s to help control mosquito population.

Females reach sizes of 1.65 inches long while males are smaller. There are variations in the color from white, green, and blue. The frogs are active during the day, feeding on insects. They are great climbers, climbing up to almost 50 yards high. During breeding season, females wrestle other females and chase them out of their territory. The males visit the nest of eggs to provide water, get rid of fungus, and to rotate the eggs.

Red-eyed Tree Frog (Agalychnis callidryas)

Red_eyed_tree_frog_edit2leastconcernRed-eyed Tree Frog (Agalychnis callidryas) is a member of the tree frog family, Hylidae. They are found from Mexico down to Panama with some reports of it being in Colombia. Females reach 3 inches long while males are smaller, only reaching 2.32 inches long.

Adults are leaf green or dark green in color with blue, purple or brown sides. The young froglets can change colors. They are green during the day but can change to purple or reddish brown during the night. The Red-eyed Tree Frog is a nocturnal frog, active during the night while sitting still in the trees during the day.

One of the interesting things about the Red-eyed Tree frog’s eggs is that when the clutch is attacked, the other eggs start to hatch. You can see a video of it on this website – http://sites.bu.edu/warkentinlab/video-library/

Rabb’s Fringe-limbed Treefrog (Ecnomiohyla rabborum)

rabbs_frog_zooatlCRRabb’s Fringe-limbed Treefrog (Ecnomiohyla rabborum) is a frog species that is nearly extinct, as there is only 1 known frog of the species around living in the Atlanta Botanical Garden. It is thought that the species was wiped out by Chytrid fungus. They are native to Panama. The species was discovered in 2005. They grow to almost 4 inches long.

Rabb’s Fringe-limbed Treefrog females lay the eggs in water filled tree holes. The male frogs defend the hole during the day by blocking it. While blocking the hole, the tadpoles feed off the male’s skin, similar to caecillians

Oregon spotted frog (Rana pretiosa)

oregon_spotted_frogvulnerableThe Oregon spotted frog (Rana pretiosa) is a member of the true frog family, Ranidae. It is native to Canada and the United States specifically Oregon and Washington. The females of the species reach sizes of 3.9 inches while males an inch less. The frogs are red, reddish brown, or brown. Juveniles can be olive green in color.

The Oregon Spotted frog has lost up to 95% of its natural habitat. Invasive species, such as the Bullfrog, Green frog, bass, and Canary grass, have lead to the decrease in its population. Canary grass changes the habitat to an unsuitable one for the frogs. Bass, Bullfrog, and Green frog feed on the Oregon Spotted Frog.

Currently, the Oregon Spotted frog is not a protected species by the United States but luckily organizations have stepped up to save the frog.

Sonoran Green Toad (Bufo retiformis)

Anaxyrus_retiformis,I_JDW149leastconcern

Sonoran Green Toad (Bufo retiformis) is a member of the true toad family. It is native to Mexico and Arizona in the United States.

The toad is green in color with yellow blotches. The males have grayish blackk vocal sacs. The female reach sizes of 1.9 inches long and males are smaller. The tadpoles are yellow in color.

 

 

Dendropsophus microcephalus

Dendropsophus-microcephalus-calling-550leastconcern

Dendropsophus microcephalus is a tree frog of the family Hylidae. They are native to Belize, Brazil, Colombia, Costa Rica, French Guiana, Guatemala, Guyana, Honduras, Mexico, Nicaragua, Panama, Suriname, Trinidad and Tobago,  and Venezuela.

Females have been recorded reaching lengths of 1.2 inches long. The species undergoes color changes. During the night, its light yellow with brown or tan markings while during the day, it can be tan-yellow or light brown with brown and red markings. Males capable of breeding have yellow vocal sacs. The males gather in choruses with over a thousand individuals to call to females during mating season.

Mountain Yellow-Legged frog (Rana muscosa)

MountainYellowLeg-001-Med4endangered

Mountain Yellow-Legged frog (Rana muscosa) is a member of the true frog family, Ranidae. It is endemic to California and Nevada. The frog has recently been broken into two species, the other being Rana sierrae, which is native to the Sierra Mountain range.

The Mountain-Yellow Legged Frog reaches to about 3 and a half inches long. Its color ranges from yellow, reddish brown, and olive.

The frogs are facing extinction from two main threats, predation from invasive species and disease. In the late 1800’s, trout were introduced in the Mountain-Yellow Legged frog region to increase recreational fishing. In experiments, when the trout where removed from lakes, the frog species came back.

Bd (chytrid fungus) is another factor in the population lose. You can read more about the fungus in a previous post.

 

Pumpkin Toadlet (Brachycephalus ephippium)

Brachycephalus_ephippium01leastconcern

Pumpkin Toadlet (Brachycephalus ephippium) is a tiny toad from the family Brachycephalidae, the saddleback toad family. It is native to Brazil.

As mentioned the Pumpkin Toadlet is extremely small, ranging from a half inch to 3/4 inches long. Its colors are orange and sometimes yellow. They only have 3 fingers and toes on each limb. After breeding, the females roll the eggs in dirt, to camouflage them from predators. The Pumpkin Toadlet’s eggs directly develop, skipping the tadpole stage.