Brown Tomato Frog
Dyscophus insularis
The Antongil Tomato Frog is the smallest and brownest member of the tomato frog trio. Adapted to dry deciduous forests instead of rainforests, it requires slightly lower humidity than its close cousins.
Environnement
Terrestre
Humidité
50 - 70 %
Température diurne
26 - 30 °C
Température nocturne
22 - 24 °C
Température ambiante
26 - 30 °C
Enclos minimal
>= 45 L
Description de l'espèce
Geographical Origin and Habitat: Endemic to the dry deciduous forests, arid shrublands, and savannahs of western Madagascar. Unlike the humid rainforest-dwelling Dyscophus guineti, this species is adapted to extreme dry seasons, surviving by burrowing deep into the sandy clay soil for months during estivation.
Taxonomy and Genetics: Characterized by a stout, rounded, and compact body with short limbs. Adults typically range between 4-7 cm in length, with females being significantly larger. The skin is smooth. The coloration is cryptic, featuring shades of clay brown, grey, or beige, allowing it to blend in with dry leaves and soil.
Behavior and Habits: A nocturnal, burrowing frog that spends the day buried in the soil or leaf litter. They are ambush predators, waiting for prey to pass. When threatened, they inflate their bodies to appear larger. Males produce a low, resonant call during the breeding season following heavy rains.
Morphology: Sexual dimorphism is distinct in adult size. Females are much larger and bulkier. Males are smaller, more slender, and often develop a darker throat area during the breeding season.
Soins, reproduction et cohabitation
Terrarium Setup: A horizontal terrarium (minimum 60x45x30 cm) is recommended. The setup must include a deep, loose substrate (coconut fiber mixed with sand and soil, at least 8-10 cm deep) to allow burrowing behavior. Provide flat rocks, cork bark shelters, and a very shallow water dish, as they are poor swimmers.
Lighting and Heating: Requires a warm habitat: daytime temperatures of 26-30°C, dropping to 22-24°C at night. Avoid overheating above 32°C. Provide gentle LED lighting and low-output UVB (2-5%) to prevent metabolic bone disease and support plant growth if live plants are used.
Humidity and Hydration: Adapted to lower humidity than other tomato frogs, keeping it around 50-60%. Provide good ventilation. Lightly mist the enclosure once or twice a week, simulating dry forest conditions. A shallow water bowl allows hydration without the risk of drowning.
Feeding and Supplementation: Insectivorous. Feed small to medium-sized crickets, roaches, and worms. Avoid prey that is too large due to their small mouth size. Dust all food with calcium and vitamin D3 supplements 2-3 times a week for juveniles, and once or twice a week for adults.
Compatibility: Generally peaceful and can be housed in small groups or pairs in a spacious terrarium. Ensure all individuals are of similar size to prevent accidental ingestion or harassment. Do not house with other species to prevent hybridization and disease transmission.
Health and Common Diseases: When stressed, they secrete a white, sticky, toxic mucus from their skin that can irritate eyes and mucous membranes. Never handle with bare hands. They are susceptible to skin infections (such as red leg syndrome) if housed in stagnant, overly damp conditions.
Origine et répartition géographiques
Endemic to the dry deciduous forests, arid shrublands, and savannahs of western Madagascar. Unlike the humid rainforest-dwelling Dyscophus guineti, this species is adapted to extreme dry seasons, surviving by burrowing deep into the sandy clay soil for months during estivation.
Origine
Afrique et MadagascarAsie de l'Est
Profil d'amphibien
- Régime alimentaire
- Insectivore
- The Brown Tomato Frog is an ambush predator that patiently waits for unsuspecting insects and invertebrates to wander within striking distance. Its natural diet primarily includes crickets, worms, spiders, and various beetles found on the forest floor. In captivity, they enthusiastically consume a variety of appropriately sized feeder insects dusted with calcium and vitamin supplements.
- Espérance de vie
- 6-12 years
- Taille adulte
- 5 cm
- Mode de vie/microhabitat
- Terrestrial
- Terrestrial and heavily reliant on a thick layer of soft substrate, they are classic sit-and-wait ambush predators of the forest floor.
- Cycle d'activité
- Nocturnal
- Brown Tomato Frogs are strictly nocturnal. They hide under roots and deep leaf litter during daytime hours to avoid heat and predators.
- Sociabilité
- Solitary
- This species is primarily terrestrial and nocturnal, spending daylight hours burrowed partially in loose soil or concealed under damp leaf litter. They rely heavily on their muted, earthy coloration to blend in with their surroundings, keeping them hidden from both predators and prey. When threatened, they are known to inflate their bodies with air to appear much larger and more intimidating.
- Reproduction
- Oviparous
- Breeding takes place during the heavy rains of the wet season, which trigger the frogs to congregate in shallow, stagnant pools. Males emit low, grunting calls to attract females to the breeding sites. The female produces hundreds of small, sticky eggs that spread out across the surface of the water, ensuring optimal oxygenation for development.
- Toxicité
- Toxic
- Similar to other tomato frogs, they can secrete a thick, gummy white substance from their skin when highly stressed or attacked. This sticky exudate can glue shut the mouth or eyes of a potential predator, allowing the frog time to escape. It is mildly toxic and can cause allergic reactions or irritation if it comes into contact with human skin.
- Stade de vie
- Metamorphosis
- The life cycle begins with the hatching of small tadpoles that feed predominantly on algae and detritus within their stagnant pools. They complete metamorphosis in a little over a month, transitioning into tiny, dull-colored juvenile frogs. As they mature into adults, their bodies become noticeably rounder, and their earthy colors deepen.
- Tolérance aux manipulations
- Display only
- Like all Dyscophus species, they are display-only. They stress easily and possess skin secretions designed to gum up the mouths of predators.
- Brumation
- They inhabit drier, western regions of Madagascar compared to other tomato frogs and aestivate heavily during the pronounced dry season.
- Mue
- Periodic
- Shedding requires a damp microclimate. They rely on the ambient moisture in their substrate retreats to prevent the old skin from adhering.
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