Boa Constrictor Imperator (BCI)

Boa constrictor imperator
Locality: Nicaraguan

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Species Overview

• Size: Nicaraguan boas are a true dwarf locality of Boa constrictor imperator, averaging 4–6 feet (1.2–1.8 m) as adults, with females tending toward the larger end. They are noticeably more compact and lighter-bodied than Colombian BCIs.

• Appearance: Typically darker in base colouration with bold contrast and reduced saddle shapes. Many show rich browns, blacks, and greyish undertones, sometimes with higher lateral striping. Their smaller size and stockier build make them distinct from Colombian boas.

• Distribution: Native to Nicaragua in Central America.

• Habitat: Found in tropical forests, savannahs, and river-edge habitats where seasonal dry and wet periods influence behaviour and prey availability.

• Behaviour: Nocturnal ambush predators that feed on small mammals, birds, and reptiles. Juveniles may climb more frequently, while adults are mostly terrestrial.

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Captive Care

• Enclosure: Their smaller size makes them well-suited to slightly reduced enclosures compared to Colombian boas. Adults thrive in 4′ × 2′ × 2′ enclosures, though larger is always beneficial. Provide secure hides, climbing branches, cork bark, and foliage. Bioactive setups with soil substrate, leaf litter, and live plants are excellent for maintaining humidity and providing enrichment.

• Temperature & Humidity: Maintain a gradient of 80–85°F (27–29°C), with a basking area of 88–92°F (31–33°C). Nighttime drops to 75–78°F (24–26°C) are acceptable. Humidity should remain 60–75%, slightly higher than Colombian boas, with a water bowl large enough for soaking.

• Diet: Juveniles feed every 7–10 days on small rodents; adults every 14–21 days. Nicaraguans require careful portioning, as their smaller size makes them more prone to obesity.

• Behaviour in Captivity: Known for being hardy boas that adapt well in captivity. They may show strong feeding responses but generally tolerate handling once acclimated.

• Special Considerations: While selective breeding has produced a wide variety of morphs, their core care requirements remain identical to standard Boa constrictor imperator.

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Locality Note

The Nicaraguan Boa is a distinct locality form of Boa constrictor imperator. Compared to Colombian BCIs, they:

• Mature at a smaller size (4–6 feet vs. 6–8+ feet).

• Display bolder, higher-contrast patterns with darker overall tones.

• Are valued in selective breeding projects for their reduced size and distinct appearance.