Tag Archive: Costa Rica


TAXONOMY
Kingdom: Animalia
Phylum: Chordata
Class: Amphibia
Order: Anura
Family: Dendrobatidae

Genus/species: Phyllobates lugubris

GENERAL CHARACTERISTICS: P. lugubris are small frogs, less than an inch in length, with the females slightly larger than the males. The head is longer than wide with a round snout. The back is jet black with paired dorsolateral stripes, of various colors including yellow, orange, gold or turquoise. They also have a thinner lighter turquoise or white ventrolateral stripe on each side from the tip of the snout to and along the front limbs.

 

DISTRIBUTION/HABITAT: This species inhabits the humid lowland and the premontane zone along the Atlantic coast of southeastern Nicaragua through Costa Rica to Central Panama. The frogs live in the leaf litter of the forest floor, near slow-moving water.

DIET IN THE WILD: Eat ants, mites, beetles, and spiders.

REPRODUCTION: Breeding occurs in the wet season. Males call to attract females, with a chortle that sounds like a hand rubbing an inflated balloon. A pair works together to create a ground nest in dry leaf litter. The female then deposits her eggs, which the male fertilizes. The male takes over and periodically moistens the eggs in the nest until the eggs hatch. He then carries 5 to 10 tadpoles at a time on his back to aquatic rearing sites. In about 2 months the tadpoles metamorphose into froglets that are about a half an inch long.

Phyllobates lugubris14933390504_dcd8c270b1_o

MORTALITY/LONGEVITY: Most poison dart frogs can live from 10 to 15 years in captivity. In general poison dart frogs have few predators. Their bright colors warn potential predators that they are toxic, even though in reality many of them merely taste bad because of sour but low potency toxins in their skins. Thus this group provides examples of both aposematic coloration and Batesian mimicry (an edible animal is protected by its resemblance to a noxious one that is avoided by predators).

CONSERVATION: IUCN Red List Least concern (LC) This species is relatively safe due to its wide distribution, tolerance to modification to its habitat, and its fairly large population. Some collected specimens have been found to be infected with Batrachochytrium dendrobatidis (chytrid fungus), but the pathogenic impacts are unclear.

REMARKS: Some South American natives capture other members of this genus (Phyllobates terribilis, P. bicolor, P. aurotaenia) to poison blow-gun darts. However, Phyllobates lugubris is not as toxic as other species in its genus and has not been documented to have been hunted primarily for its poison

P. lugubris is sympatric with another species, Eleutherodactylus gaigeae, known as the “false poison-dart frog.” This species mimics the appearance of P. lugubris in order to fend off predators, by having two paired red stripes running the length of the body. However, E. gaigae is a non-toxic mimic and does not produce batrachotoxins.

References

California Academy of Sciences Animal Attractions, Docent Rainforest Training Manual 2014

Ron’s WordPress shortlink  http://wp.me/p1DZ4b-1t1

Ron’s flickr  https://www.flickr.com/photos/cas_docents/14933390504/in/set-72157620708938680

Amphibiaweb  amphibiaweb.org/cgi/amphib_query?where-genus=Phyllobates&…

IUCN Red List www.iucnredlist.org/details/55263/0

Encyclopedia of Life eol.org/pages/1025277/details

 

TAXONOMY

Kingdom: Animalia
Phylum: Chordata
Class: Amphibia
Order: Anura
Suborder: Neobatrachia
Family: Centrolenidae

Genus/species: Cochranella granulosa

GENERAL CHARACTERISTICS: They are usually have a dark blue-green dorsum, often with scattered black spots. with the abdominal skin transparent showing internal organs. White stripe is present on the on upper lip.

Length about one inch long, females slightly larger than males.

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DISTRIBUTION/HABITAT: The Granular Glass Frog is native to Costa Rica, Honduras, Nicaragua, Panama, They are found Arboreally in subtropical or tropical moist lowland forests, rivers, and heavily degraded former forest.

Granular Glass Frog9586409513_a9555368e5_k

REPRODUCTION: C. granulosa lays eggs on leaves above water. Upon hatching the tadpoles drop into the water then grow into adults.

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CONSERVATION: IUCN: Least Concern (LC)
Generally threatened by habitat loss resulting from deforestation, and water pollution.

References

California Academy of Sciences Animal Attractions

Amphibiaweb www.amphibiaweb.org/cgi-bin/amphib_query?where-genus=Coch...

IUCN Red List www.iucnredlist.org/details/54964/0

Encyclopedia of Life eol.org/pages/1047969/details

Ron’s flickr  http://www.flickr.com/photos/cas_docents/sets/72157608456457315/with/9130483407/

Ron’s WordPress shortlink  http://wp.me/p1DZ4b-11e

TAXONOMY
Kingdom: Animalia
Phylum: Chordata
Class: Actinopterygii (ray-finned fishes)
Order: Cyprinodontiformes (Rivulines, killifishes and live bearers)                                                                                        Family: Poeciliidae

Genus/species: Alafro cultratus

Alafro cultratus16167676782_36fa409f32_k

GENERAL CHARACTERISTICS: Max length : 7.5 cm.

DISTRIBUTION/HABITAT: Central America: Costa Rica, Panama and Nicaragua. Found in rapidly flowing rainforest streams.

DIET IN THE WILD: Insectivorous, aquatic and terrestrial insects.

REPRODUCTION: Internal live bearers. Gestation lasts for about 24 days. Produces 10 to 30, rarely more, young.

CONSERVATION: IUCN AND CITIES Not Evaluated

References

fishbase www.fishbase.gr/summary/46449

Encyclopedia of Life eol.org/pages/1157656/hierarchy_entries/44712641/details

Ron’s flickr https://www.flickr.com/photos/cas_docents/16167676782/in/set-72157620708938680

Ron’s WordPress Shortlink  http://wp.me/p1DZ4b-1tM

TAXONOMY
Kingdom: Animalia
Phylum: Chordata
Class: Amphibia
Order: Anura
Family: Hylidae

Genus/species: Dendropsophus ebraccatus

GENERAL CHARACTERISTICS: Gets its name from the hourglass shape that you can usually see on the frog’s back. Its translucent skin changes color depending on the time of day and the stress the frog is experiencing. Iris brown to reddish bronze, sometimes tan or yellow. Pupil horizontal. Foot moderately to extensively webbed. Toes with large terminal discs. Length  males to 28 mm (1.1 inches) ; females to 37 mm (1.5 inches).

DISTRIBUTION/HABITAT:  Native to Belize; Colombia; Costa Rica; Ecuador; Guatemala; Honduras; Mexico; Nicaragua; Panama.  Found in  humid tropical forest and in heavily disturbed areas where most of the forest has been removed. 

DIET IN THE WILD: Unknown but probably small arthropods.

REPRODUCTION: Eggs are placed on leaves overhanging  pools with the tadpoles developing in the water.

CONSERVATION: IUCN Red List (LC)
D. ebraccatus is very adaptable with the major threats deforestation for agricultural development, human settlement, and pollution resulting from the spraying of crops.

MORTALITY/LONGEVITY: Short lived, usually lasting less than 3 years.

LOCATION: CR06

References

IUCN Red List  www.iucnredlist.org/details/55470/0

Amphibiaweb amphibiaweb.org/cgi/amphib_query?where-genus=Dendropsophu…

Encyclopedia of Life  eol.org/pages/1038861/details

Ron’s WordPress shortlink:  http://wp.me/p1DZ4b-t6

Ron’s flickr http://www.flickr.com/photos/cas_docents/sets/72157620708938680

TAXONOMY
Kingdom: Animalia
Phylum: Chordata
Class: Amphibia
Order: Anura
Suborder: Neobatrachia
Family: Dendrobatidae

Genus/species: Dendrobates auratus

GENERAL CHARACTERISTICS:  Green marking on dark background. Color and pattern varies widely among populations of this species.  Aposematic (“warning”) coloration shies diurnal predators away from this bold frog An average species in size, toxicity, and coloration.  Males reach about three-quarters of an inch long; females are slightly larger.

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DISTRIBUTION/HABITAT: Central America to Northwest Colombia lowland tropical rainforests. Common in cocoa (not coca) plantations. Introduced to Hawaii (1932 Oahu) to control non-native insect populations. The “success” of this experiment has yet to be proven. Terrestrial frogs, but will climb. Active diurnally.

DIET IN THE WILD : Ants and mites, also tiny beetles, flies and springtails. Often captures insects feeding on rotting fruit.

REPRODUCTION: Each individual male frog clears a small patch for himself. Females wander among the males, the latter then attempt to impress the former with their bird-like mating calls. the two then mate. The male grasps the female in a gentle embrace, and fertilizes each egg as it is produced. In approximately 2 weeks, these hatch into tadpoles which are carried to the canopy the tadpoles sticking to the mucus on their parents’ backs. The parents then deposit their tadpoles into the small pools of water that accumulate in the center of bromeliads protecting them until their development is complete.

Green and black poison dart frog16461015440_7dab815173_k

MORTALITY/LONGEVITY: Can live to 17 years.

CONSERVATION: Least Concern (IUCN Red List). Still reported to be locally common, they are at some risk due to habitat destruction. They are popular in the pet trade, but most are captive-born.

REMARKS: D. auratus produces pumiliotoxin, a potent nerve poison manufactured and stored in subcutaneous membranes and secreted through a modified layer of epidermis. The small amount of pumiliotoxin poison the frog possesses is enough to make humans seriously ill by interfering with muscle contraction in the heart and skeletal muscle.

D. auratus, as with all poison dart frogs, loses its toxicity in captivity due to a change in diet. This has led scientists to believe that the green-and-black poison frog actually takes its poison from the ants it feeds on.

Green & Black Poison Dart Frog Dendrobates auratus (Dendrobatidae) 2

Costa Rica Rainforest

References 

 Animal diversity Web animaldiversity.org/accounts/Dendrobates_auratus/

 California Academy of Sciences Docent Rainforest Training Manual 2014

 Dendrobates.org  www.dendrobates.org/auratus.html

Ron’s flickr  http://www.flickr.com/photos/cas_docents/sets/72157608456457315/

WordPress shortlink  http://wp.me/p1DZ4b-Ln

TAXONOMY
Kingdom: Animalia
Phylum: Chordata
Class: Reptilia
Order: Squamata
Suborder: Lacertilia
Family: Polychrotidae

Genus/species: Norops oxylophus

GENERAL CHARACTERISTICS: Stream anoles are moderately large, about 8 cm (3 in) snout to vent, short-legged lizards. Females are slightly smaller than males. They are chocolate-colored with a pair of cream-colored lateral stripes that run from the shoulder down about 2/3 the length of the body. The irises of their eyes are a coppery color. This is one of the characteristics that distinguish N. oxylophus from N. aquaticus, a blue-eyed anole that lives in the same area.

Norops oxylophus 5389062001_ef78684622_b

DISTRIBUTION/HABITAT: Honduras to northwestern Panama. Found in lowland forest and streams.

DIET IN THE WILD: Invertebrates. Anoles are visual lizards with excellent eyesight. They have color vision that includes ultraviolet wavelengths. Unlike many lizards, their sense of smell is poor, and they use their tongues to capture prey, rather than to sense them.

Norops oxylophus 5389664708_63b917acef_o

REMARKS: May dart across water to escape predators.

Rainforest Costa Rica CR04

References

California Academy of Sciences Docent Rainforest Training Manual 2014

Ron’s WordPress Shortlink http://wp.me/p1DZ4b-1sN

Ron’s flickr https://www.flickr.com/photos/cas_docents/5389062001/in/album-72157620708938680/

TAXONOMY
Kingdom: Animalia
Phylum: Arthropoda
Subphylum: Hexapoda
Class: Insecta
Order Orthoptera (grasshoppers, locusts, crickets, katydids, and their relatives)
Family: Tettigoniidae

Genus/species: Copiphora rhinoceros

GENERAL CHARACTERISTICS OF KATYDIDS: They are usually green and have a thick body, usually taller than it is wide, and long thin legs. The head has chewing mouthparts and long thin antennae that reach back at least to the abdomen of the insect. The front wings have special structures that can be rubbed together to make sounds. They hear these sounds with flat patches on their legs that act as ears.

Tettigoniids may be distinguished from grasshoppers by the length of their filamentous antennae, which may exceed their own body length, while grasshoppers’ antennae are always relatively short and thickened.

C. rhinoceros uses the horn like projection on their head for protection from hungry bats.

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DISTRIBUTION/HABITAT: Central, North and South America. Found in the forest canopy.

DIET IN THE WILD: They use their powerful jaws to subdue prey such as small invertebrates and consume plant material.

REMARKS Use sound to communicate across distances. Sometimes nearby males will all call together, trying to attract females. They also use their antennae to touch and smell each other.

Copiphora rhinoceros15949749665_c2933568be_k

 

References

Encyclopedia of life  eol.org/pages/972/details

Animal Diversity Web animaldiversity.org/accounts/Copiphora_rhinoceros/classif…

California Academy of Sciences Exhibit. San Francisco CA

Ron’s flickr  https://www.flickr.com/photos/cas_docents/15762449040/in/photostream/

WordPress shortlink  http://wp.me/p1DZ4b-1qb

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