Black Tree Monitor
Varanus beccarii
A sleek, jet-black Indonesian arboreal monitor lizard known for its agility and intelligence. It requires large vertical enclosures, high tropical humidity, and complex climbing structures.
Environnement
Terrestre
Humidité
75 - 95 %
Température diurne
28 - 32 °C
Température ambiante
28 °C
Température nocturne
22 - 24 °C
Point de repos chauffant
28 - 32 °C
Taille adulte
90 cm
Enclos minimal
>= 1 200 L
UVB
Ferguson 3
UVI
1 - 2,6 UVI
Description de l'espèce
Geographical Origin and Habitat: Endemic to the Aru Islands of Indonesia. It is restricted to hot, humid tropical rainforests and coastal mangroves, spending its entire life high in the forest canopy.
Taxonomy and Genetics: Belongs to the family Varanidae, genus Varanus, and subgenus Euprepiosaurus (part of the Varanus prasinus species complex). Its solid black coloration (melanism) is an evolutionary genetic adaptation for camouflage in dense canopy shadows.
Behavior and Habits: Diurnal, strictly arboreal, and highly active. It is a shy, easily stressed monitor lizard. It relies heavily on its prehensile tail as a stabilizing limb when navigating thin branches.
Morphology: A slender, elegant monitor lizard reaching a total length of 90-100 cm, with the tail representing two-thirds of this length. Coloration is a solid, glossy jet-black. Features long, needle-sharp claws and a prehensile tail.
Soins, reproduction et cohabitation
Terrarium Setup: Requires a large vertical enclosure (minimum 120x60x120 cm). Furnish heavily with intersecting branches, vertical cork bark tubes, and sturdy live or artificial plants. Use a moisture-retaining substrate like cypress mulch and soil.
Lighting and Heating: Basking spot must reach 43-48°C (109-118°F) using halogen bulbs. Ambient temperatures should be 28-32°C (82-90°F) with a night drop to 22-24°C (72-75°F). High-output 10-12% UVB lighting is required.
Humidity and Hydration: Maintain high humidity levels (70-85%). Daily misting is mandatory alongside a large water tub that allows the monitor to submerge fully.
Feeding and Supplementation: Carnivorous. Diet should include gut-loaded large insects (roaches, crickets, locusts), occasional pinky/fuzzy mice, and egg pieces. Dust insects with calcium three times a week and multivitamins weekly.
Compatibility: Strictly solitary. Males are highly territorial. Keep individually; housing a male-female pair requires immense space and close observation to prevent injuries.
Health and Common Diseases: Highly sensitive to stress, which can lead to immunosuppression and anorexia. Respiratory infections can develop if the enclosure is cold and drafty. Watch for stuck shed on digits and tail tip, which can lead to necrosis.
Origine et répartition géographiques
Endemic to the Aru Islands of Indonesia. It is restricted to hot, humid tropical rainforests and coastal mangroves, spending its entire life high in the forest canopy.
Origine
Asie du Sud et du Sud-Est
Profil de reptile
- Régime alimentaire
- Insectivore
- The black tree monitor is a highly adapted carnivore that thrives on a diet of arboreal prey. It actively hunts for insects, spiders, small lizards, and occasionally small birds or nestling mammals. In captivity, their diet consists primarily of crickets, roaches, grasshoppers, and appropriately sized frozen-thawed rodents. Careful feeding is required to prevent obesity, as they are very active lizards that need to burn off their caloric intake.
- Taille adulte
- 90 cm
- Mode de vie/microhabitat
- Arboreal
- Like other members of the prasinus complex, they are strictly arboreal. They are uniquely adapted with a prehensile tail and require a tall, vertical enclosure filled with branches, cork hollows, and dense foliage to simulate their forest canopy home.
- Cycle d'activité
- Diurnal
- The Black Tree Monitor is an active, diurnal predator. They spend their days patrolling their arboreal territory, flicking their tongues constantly to hunt for insects and small prey, followed by intense basking sessions to thermoregulate.
- Sociabilité
- Solitary
- Like other members of the tree monitor complex, they are incredibly agile and perfectly suited for a life in the canopy. They utilize their long, prehensile tail for balance and gripping, allowing them to hang and reach across wide gaps. Though entirely black and somewhat secretive by nature, they are also deeply inquisitive and will actively investigate their surroundings. With careful acclimation, they can become surprisingly bold and interactive subjects in large, complex vivariums.
- Reproduction
- Oviparous
- This monitor species reproduces by laying small clutches of elongated eggs, typically numbering between two and six per clutch. Females look for humid, secure microhabitats, such as rotting tree hollows or epiphyte root masses, to construct their nests. The eggs require specific and stable incubation parameters to develop properly, a process that can last up to six months. Upon hatching, the young are immediate independent hunters, fully equipped to navigate the trees.
- Tolérance aux manipulations
- Display only
- They are skittish, nervous, and highly prone to panic. They are best kept as display animals. Attempting to handle them usually results in frantic thrashing, scratching, and severe stress, though they may eventually take food from tongs.
- Brumation
- Originating from the Aru Islands, they do not experience winter and do not brumate. They require consistent, high temperatures and tropical conditions every day of the year.
- Mue
- Periodic
- High humidity (70-90%) is absolutely crucial for this species. Without it, they will suffer from chronic dehydration and severe shedding issues, leading to necrotic toes and tail tips. Daily automated misting is strongly recommended.
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