Bothriopsis bilineata — WALLACH et al. Bothrops bilineatus bilineatus (WIED ) Cophias bilineatus WIED-NEUWIED Cophias bilineatus. First report of an accident by forest pit viper (Bothriopsis bilineata) in Brazilian Amazon. •. We detected elevated CK with developed acute kidney injury and. Toxicon. Jul; doi: /n Epub Apr Forest pit viper (Bothriopsis bilineata bilineata) bite in the Brazilian Amazon.
|Published (Last):||17 November 2008|
|PDF File Size:||15.59 Mb|
|ePub File Size:||5.36 Mb|
|Price:||Free* [*Free Regsitration Required]|
Bothriopsis bilineata is found in the South American neotropics.
Bothrops bilineatus | The Reptile Database
Other highly populated regions include equatorial forests of Venezuela, Guyana, French Guiana, and Suriname. It is most abundant in southwest South America, in Parque Nacional. Bothriopsis bilineata has been documented as far south as Jacarepagua, which is located within the city limits of Rio de Janeiro.
However, the species was removed from Jacarepagua in and is now considered rare in that region. Two-striped forest-pitvipers are present only in forested habitats. Its distribution ranges from sea level to approximately m in elevation. They very seldom are found at elevations above m.
Their most common habitat is wet lowland rainforests, where they live primarily near waterways, especially along streams. Two-striped forest-pitvipers spend much of their time on branches and shrubs more than 1 m off the ground. While they are particularly abundant in very wet primary forests, these snakes also occur in secondary forests near or adjacent to primary forests.
Wet lowland rainforests occupied by two-striped forest-pitvipers usually have a canopy height of 40 m, but individual biljneata can reach up to 65 m.
However, trees in wet lowland rainforests typically have a greater height, height to first branch, trunk volume, buttress height and buttress area than in other rainforest ecosystems. Sub-canopy vegetation in lowland rainforests primarily consists of successional trees rather than shrubs or herbs.
Bothriopsis bilineata is a sleek, green pitviper with a prehensile tail. Typical length is about 70 cm, although individuals up to cm have been reported.
Females are usually 10 to 20 cm longer than males. In both sexes, the head is typically green with black spots, but sometimes may be green with tan or red spots with black margins. The iris of the eye is light green to yellow and the pupil is vertically elliptical. The bothriopsiss is pinkish-grey with dark grey tips. Snout length in B. Body coloration of in B. The enlarged scales on venter, commonly referred to as botnriopsis, are yellow with a green tinged bordering.
A creamy yellow line borders the lateral margins of the ventrals and runs the entire length of the snake. The distal portion of the tail bilineara pink outlined by yellow. Individuals with a whitish-yellow tail tip have been reported.
The two-striped forest pitviper are primarily arboreal. They weigh less and are a notably shorter in length than other species of pitviper. This difference in length has been attributed both to their arboreal habitat and feeding behavior. Smaller body size allows them to articulate through the dense shrubbery of the Amazon region. Campbell and Lamar, ; Campbell and Lamar, ; Monteiro, et al. Other characteristic features of Bothriopsis bilineata include 5 to bothriopsus keeled intersupraoculars, 7 to 9 supralabials, 8 to 12 infralabials, and 23 to 25 midbody scale rows.
Males have to ventrals and 65 to 76 mostly divided subcaudals, whereas females have to ventrals and 55 to 73 mostly divided subcaudals. However, sometimes present are partial or full sutures that separate these scales forming the lacunolabial.
Members of the genus Bothriopsis have unique skull morphology in that the frontal bones are concave and are longer than than they are wide.
The postfrontals do not contact the frontal bones and are long and narrow. All pitvipers have 5 palatine teeth, 14 to 18 pterygoid teeth, and 15 to 17 dentary teeth.
Their maxillary fangs are around 1.
Related or similar species to Bothriopsis bilineata includes subspecies B. Rather, it is peppered only with black spots. One other prehensile-tailed pitviper in South America that might be confused with B.
However, sympatry between Bothriopsis bilineata and Bothriechis schlegelii has not been confirmed. In Ecuador, Peru, and Bolivia, there are four other green pitvipers. These include Bothriopsis pulchraB. All of these species lack the paraventral stripes found in B. Bothriopsis bilineata is ovoviviparous, meaning that the eggs develop internally, with the mother giving birth to live young.
Neonates are venomous upon birth and are known to be more aggressive at times than the adults. After birth, young feed upon frogslizardsand other relatively small prey. Individual size depends greatly on food availability.
Adult females are typically larger than adult bothripsis. Campbell and Lamar, ; Campbell and Lamar, ; Travers, There is no information available regarding the mating system of Bothriopsis bilineata. However, a study of Bothriopsis taeniata at the Dallas Zoo found that, during mating, males position themselves on one side of the female, while moving across her dorsum. The male flicks his tongue extremely fast, approximately 43 to 71 times a minute.
There was a problem providing the content you requested
During this study, females gave birth in June, July, and October, bjlineata clutches ranging in size from 7 to 12 offspring. In many pitvipers, male-male competition, known as “the dance of the adders”, takes places during the mating season and is mainly preformed to guard access to mates. Some reports suggest that this behavior may also be used to compete for territories. Fighting between males is done by holding the face and forebody erect and wrapping their bodies around one another as they attempt to force one another to the ground.
Competitive bouts between males can take hours and usually ends with the winner gaining access a nearby female for mating. Clutch size ranges from 6 to 16 young. Neonates range in length from 20 to 26 cm and range in mass from 7 to 11 g, with an average of 10 g.
Although little information is known concerning the reproductive behavior of Bothriopsis bilineatareproductive behavior of northern temperate pitvipers is thought to be very similar. Reproductive cycle begins with spermatogenesis and vitellogenesis.
Bothriopdis in females usually occurs during late summer or fall with the development of follicles pausing during winter and resuming during spring. Courtship and mating generally occurs during late summer to winter, from April to October. Long-term sperm storage may be used during the winter, from July bothrikpsis September, and is essential in many pitvipers.
Delaying fertilization makes it possible for birthing to occur during a favorable time of year and likely increases offspring survival. During spring, ovulation, fertilization and embryogenesis take place. Birth most likely occurs during the rainy season of summer, which is usually in March. However, this cycle likely varies in relation to weather, food availability and by species.
Bothriopsis bilineata females store sperm until the optimal time to fertilize the eggs. Once the eggs are fertilized, the mother carries the embryos until the eggs are ready to hatch, which occurs internally.
For all pitvipersyoung venomous upon birth and are able to hunt. Some mothers stay with the young for 7 to 10 days.
However, young are typically independent upon birth. Almedia-Santos and Salomao, ; Travers, There is no information on the average lifespan of Bilnieata bilineata.
In general, estimated lifespan for pitvipers ranges from 10 to 25 years, with variations most likely due to captivity. One account describes a B. Bothriopsis bilineata is nocturnal and spends most of the day in thick foliage or at the base of palm trees, generally 1 m or higher above the ground.
File:Bothriopsis bilineata smaragdinus (Yasuni) – – Wikimedia Commons
It uses its prehensile tail to anchor itself on to trees and shrubbery. To conserve energy, B. Bothriopsis bilineata is an ambush predator. Like other pitvipersB. Because temperatures at night are cooler, a greater heat signature is generated by potential prey. The pits are located on both sides of the head, creating a stereo effect that allows B. Experiments conducted on pitvipers have shown that when bothriopsiz of sight and smell, they can strike accurately on targets 0.
There is no information available regarding the average home range size of Bothriopsis bilineata. Bothriopsis bilineatalike other pitvipershas heat-sensing pits located between the eyes and nostrils, on both sides of the head. Within these pits are numerous heat-sensitive nerves that are covered by thin membranous tissue.
The pits are highly vascularized, which helps maintain a constant temperature, thereby increasing sensitivity to changes in iblineata temperature.
In addition to heat-sensing pits, B. This trait, common to all pitvipersincreases depth and visual bioineata. Like all snakesBothriopsis bilineata has an adept olfactory perception. Other bothrilpsis those that occur during mating season, little is known about intraspecific interactions in Bothriopsis bilineata.
During mating season, male-male competition takes place. During these competitive interactions, two males become intertwined in an attempt to force one another to the ground. The winner gains access to mates and territory. Although they lack ears, snakes are highly sensitive to vibrations.