Other examples of sexual dimorphism in the species include males generally having longer tails to contain the hemipenes and also longer pelvic spurs, which are used to grip and stimulate the female during copulation. B. c. constrictor reaches, and occasionally tops, the averages given above, as it is one of the relatively large subspecies of Boa constrictor.[7]. [9], Another well known population of Boa imperator is the population from Nicaragua. 2018. The boa constrictor is a member of the family Boidae, found in tropical South America, as well as some islands in the Caribbean. Their bite can be painful, especially from large snakes, but is rarely dangerous to humans.

[28] In some areas, they have an important role in regulating the opossum populations, preventing the potential transmission of leishmaniasis to humans. The result is a grey, black, white & Silver Boa. Females, the larger sex, more commonly weigh 10 to 15 kg (22 to 33 lb). [19] This would lead to unconsciousness and death very quickly. Boa constrictors are ambush predators, so they often lie in wait for an appropriate prey to come along, then they attack. ), All subspecies are referred to as "boa constrictors," and are part of a diverse group of New World boas referred to as "red-tailed" boas, comprising species of both boa constrictor and boa constrictor imperator. [27] After this period, ovulation may not occur immediately, but the female can hold the sperm inside her for up to one year. [37], The subspecific name ortonii is in honor of American naturalist James Orton.[37]. While not as small as the dwarf insular island populations, adults are still smaller than the larger B. c. constrictor. If the snake gets reclassified as its own species, the Boa Imperator, this would allow some of these locale Boa's to be reclassified as official sub-species. [21] They generally breed in the dry season—between April and August—and are polygynous; thus, males may mate with multiple females.

Within the exotic pet trade, it is also known as a "BCC," an abbreviation of its scientific name, to distinguish it from other boa species such as B. c. imperator or "BCI.

Natural history and conservation of island boas (, Global Invasive Species Database (GISD) 2015. [13], Boa imperator can be found in some regions of Mexico, Central America and northwestern Colombia, as well as several islands along the coasts of these areas. [citation needed] The normal or “Wild type” color, typical of most imperator, and “Hypo” color variant. [27] When the female ovulates, a midbody swell can be noticed that appears similar to the snake having eaten a large meal. #DarrenHamillReptiles #NicaraguanBoas #Boaimperator, Boa constrictor imperator (LINNAEUs, 1758), Convention on International Trade in Endangered Species of Wild Fauna and Flora (CITES). 1. [39] They include: The subspecific name amarali is in honor of Brazilian herpetologist Afrânio Pompílio Gastos do Amaral. Some appear to be based more on location than biological differences[28] Boa imperator has been elevated to full species status.[36]. [22] Reproduction in boas is almost exclusively sexual.

In the pet trade, Nicaraguan Boas have been line bred in order to bring out their naturally light coloration, further reducing the black pigmentation.

Most populations, though, are not under threat of immediate extinction; thus, they are within Appendix II rather than Appendix I.

[13] Pelvic spurs are the only external sign of the rudimentary hind legs and pelvis and are seen in all boas and pythons. [2] The boa constrictor is a member of the family Boidae, found in tropical South America, as well as some islands in the Caribbean. [10] Nicaraguan individuals typically have a compact saddle pattern on their backs that is often circular in shape. [9] A report of a boa constrictor growing up to 18.5 ft (5.6 m) was later found to be a misidentified green anaconda. The average length for the dwarf boa constrictor is … [28] These huge numbers of wild-caught snakes have put considerable pressure on some wild populations. In 2017, boa constrictors, along with Boa imperators and Burmese pythons, were found to contain a new set of sex determining chromosomes.

Although Boa imperator exhibits almost identical patterns to Boa constrictor, this species often has a darker tail, usually dark brown or very dark red. The color of the tail may vary from salmon-pink to orange. A staple of private collections and public displays, its color pattern is highly variable yet distinctive. [27] The female then gives birth to young that average 15–20 in (38–51 cm) in length. Today, most captive boa constrictors are captive-bred, but between 1977 and 1983, 113,000 live boa constrictors were imported into the United States. Boa imperator is a large, heavy-bodied, nonvenomous species[3] of snake, of the boa genus, that is commonly kept in captivity. The boa first strikes at the prey, grabbing it with its teeth; it then proceeds to constrict the prey until death before consuming it whole. These are naturally hypomelanistic, which means that they have reduced melanin, thus are more lightly colored, although they retain the distinctive darker tail that is characteristic of most members of this species. [18] The litter size varies between females but can be between 10 and 65 young, with an average of 25, although some of the young may be stillborn or unfertilized eggs known as "slugs". The most common parasite is Ophionyssus natricis or the "reptile mite".


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