La Senda Verde gives shelter to a wide variety of reptiles
Boa Constrictor (Boa Constrictor)
The boa constrictor is a non-poisonous tropical snake belonging to a specialized group of reptiles -- the first vertebrate class completely independent of water. It is found in Central and South America and often reaches lengths of up to 4 m (13 ft.). It belongs to the same family as the python and anaconda, which reach lengths of up to 9 or 10m. The boa constrictor's life span is about 25 to 30 years. Some boas live in underground holes while others live in trees.
Broad-snouted Caiman (Caiman latirostris)
The Broad-Snouted Caimans range overlaps with that of the Yacare Caiman, but habitat preferences are slightly different. The Broad-Snouted Caiman is found in slow-moving water in dense forest, although a wider variety of habitat types can be utilised when its range does not overlap with that of the Yacare Caiman. The Broad-Snouted Caiman has been successful in colonising man-made habitat such as cattle stock ponds.Both of the above species have a greater tolerance for colder conditions, given the latitudes (e.g. up to 600 metres) at which they occur. Their darker colouration is an adaptation to this, being designed to absorb more radiated heat.
Chaco tortoise (Geochelone chilensis)
The Chaco tortoise is a moderately sized tortoise native to the Chaco regions of Argentina, Paraguay and Bolivia. Despite their species name, they are not found in Chile. Chacos are the smallest of the Geochelone tortoises, the largest of which includes the Galapagos tortoises. Chacos are related to the yellow-footed (G. denticulata) and the red-footed (G. carbonaria) tortoises.
The primary threats facing the Chaco tortoises include the two most common facing other threatened populations: habitat destruction and the pet trade, with the biggest impact on wild populations being from the latter.
Yellow-footed Tortoise (Chelonoidis denticulata)
The yellow-footed tortoise is a species of tortoise in the family Testudinidae and is closely related to the red-footed tortoise. It is found in the Amazon Basin of South America. They are found in drier forest areas, grasslands, and the savanna, or rainforest belts adjoining more open habitats. They are in the third largest mainland tortoise species on Earth. . The largest know specimen is a female that was 94 cm in length.These tortoises make a sound like a baby cooing with a raspy voice. Tortoises also identify each other using body language. The male tortoise makes head movements toward other males, but the females do not make these head movements. Male tortoises also swing their heads back and forth in a continuous rhythm as a mating ritual. The yellow-footed tortoise can live for approximately 50 ? 60 years.
Red-foot Tortoises (Chelonoidis carbonaria)
Red-footed tortoise are found in northern South America. Their natural habitat ranges from savannah to forest-edges around the Amazon Basin. They are omnivorous with a diet based on a wide assortment of plants- mostly fruit when available, but also including grasses, flowers, fungi, carrion, and invertebrates. Eggs, hatchling, and young tortoises are food for many predators but the main threats for adults are jaguars and humans. Jaguars in some parts of their respective ranges will bite at the carapace and work at cracking or prying it apart to extract the soft tissues. Population density ranges from locally common to very scarce due in part to habitat destruction and over-collection for food and the pet trade. Most species of tortoise spend much of their day inactive, and red-footed tortoises generally spend over 50% of the daylight hours at rest. They may rest for even longer after a large meal, with five to ten day stretches being common. They are a really populair tortoise to keep as a pet and as a food source. The red-foot tortoise is considered vulnerable and is listed in CITES Appendix II, restricting international trade- although this does not offer protection within a country and smuggling still occurs in large numbers.
Yellow-spotted Amazon River Turtle (Podocnemis unifilis)
The Yellow-spotted Amazon River Turtle is one of the largest South American river turtles. It can grow up to 45 cm long and weigh up to 8 kg. Females can be up to twice the size of males. Yellow spots on the side of its head give this species its common name. These spots are most prominent in juveniles and fade with age. Yellow-spotted river turtle is a type of side-necked turtle, so called because they do not pull their heads directly into their shell, but rather bend the neck sideways to tuck the head under the rim of the shell. These turtles are found in tributaries and large lakes of South America's Amazon Basin. They feed on fruits, weeds, fish, and small invertebrates. The average life span is 60 to 70 years.
Arrau, Giant South American Turtle (Podocnemis expansa)
The Arrau River turtle or Giant South American turtle, also known as the Charapa turtle, Arrau turtle, Tartaruga-da-amazónia, or Araú, is the largest of the side-neck turtles. It is found in the Amazon River and its tributaries (Peru, Brazil, Colombia, Venezuela, and so on). Adults often reach 1 m in length. Females have wide flattened shells and are larger and more numerous than the males. Adult Arraus feed entirely on plant food. The nesting habits of this species are similar to those of their sea turtle kindred. Like sea turtles they gather in huge numbers in order to travel to suitable nesting areas. The females lay their eggs on sandbanks which are exposed only in the dry season, and there are relatively few such sites. The females come out on the sandbanks at night to lay their eggs which can number anywhere from 90 to 100 soft-shelled eggs,then returning to their feeding grounds. The young when hatched dart directly for the water, but they emerge to the attentions of many predators and even without man´s activities, only about five percent ever reach the adult feeding grounds. Because of this it is an endangered species and is protected in most areas.
Chaco side-necked turtle (Acanthocelys pallidipctoris)
This tortoise´s common name is taken from the Chaco regions of Argentina and Paraguay in which it lives, but the Latin name chilensis is misleading, since the species is not native to Chile. The oval upper shell (carapace) may be either totally yellowish brown or have dark-brown to black growth rings (annuli) surrounding a tan centre on each scute. The rim of the shell is slightly serrated and has a dark wedge of pigment at the back edge of each scute. The lower shell (plastron) may be uniformly yellowish-brown or have a dark triangular wedge along the seams of each scute. The head, limbs and tail are greyish to yellowish-brown.
Scorpion mud turtle (Kinosternon scorpioides)
The Scorpion mud turtle is a species of mud turtle in the Kinosternidae family. It is found in Mexico, Central America and South America. It is a highly aquatic, adaptable kinosternid that inhabits almost any body of water. This turtle is primarily omnicarnivorous, voraciously feeding on a wide variety of aquatic invertebrates and vertebrates, including carrion. In captivity, poorly fed, this turtle can be cannibalistic, biting off the toes and limbs of other turtles.
Colombian slider (Trachemys callirostris)
The Colombian slider is a turtle belonging to the Trachemys genus of the family Emydidae found in Columbia and Venezuela. These turtles are omnivores, and bask frequently, but little else concerning their demography or non-breeding ecology is known. Nesting occurs during the dry season (December - May) and eggs are usually buried under low vegetation in moist soil near the shoreline. Clutch size depends on female size, and varies from 1 - 23 eggs. Predation on eggs and egg incubation failure is common. A study of incubation temperatures in natural nests found that with a mean incubation temperature of 31.7C, all neonates produced were females, implying the species has temperature-dependent sex determination. Adults and nests are exploited throughout the range of the species, and despite protection by national legislation and the existence of several protected areas within the range of the species, current levels of exploitation probably are not sustainable. Enforcement of existing legislation and demographic monitoring are needed.
Red-ear slider !Non-Native Fauna! (Trachemys scripta elegans)
The red-eared slider is the most popular pet turtle in the United States and also popular in the rest of the world. It is native only to the southern United States and northern Mexico, but has become established in other places because of pet releases and has become an invasive species in many introduced areas, such as California, where it outcompetes the native western pond turtle. Red-eared sliders get their name from the distinctive red patch of skin around their ears. The "slider" part of their name comes from their ability to slide off rocks and logs and into the water quickly. Red-eared sliders are almost entirely aquatic, but leave the water to bask in the sun and lay eggs. These reptiles are deceptively fast and are also decent swimmers. Red-eared sliders are omnivores and eat a variety of animal and plants. Hibernation. Reptiles do not hibernate, but actually they brumate, becoming less active, but occasionally rising for food or air. Brumation can occur in varying degrees. Red-eared sliders brumate over the winter at the bottom of ponds or shallow lakes; they become inactive, generally, in October, when temperatures fall below 10C. Individuals that survive their first year or two can be expected to live generally around 30 years.