What reptiles and amphibians am I likely to see?
What types of Reptiles and Amphibians can I
see?- Throughout the world, reptiles and especially amphibians are
becoming extinct or endangered at alarming rates. Among the most
specialized and ecologically fragile of species, they are falling victim
to habitat reduction and the effects of pollution. The Amazon, although
by no means an untouchable haven, remains a stronghold for many of these
disappearing creatures solely because of its vast size and relative freedom
from pollution. Anglers can see many of the species described below
Crocodilians - Three species of cayman, close
relatives of the alligator, inhabit the freshwaters of Amazonia.
The spectacled caiman (Caiman crocodilus), up to almost 6 feet in
length and the smaller dwarf caiman (Paleosuchus trigonatus)
abound throughout the rivers we fish. Sadly, the giant black
cayman (Melanosuchus niger), often reaching lengths of over
18 feet, is now also a member of the endangered species list. Although,
extensive hunting for their skins in the past has resulted in serious population
reductions throught South America, we are starting to sight more and more
giant specimens in Amazonia.
Snakes - Although the Amazon
is home to a great variety of snakes, it takes some fair amount of effort
and knowledge to actually find them. The popular imagination always
associates the jungle with hordes of snakes writhing everywhere.
The reality is that snakes are not commonly encountered due to their secretive
and nocturnal natures. Under most circumstances, anglers rarely
see them in the riverine environment. For those who are interested,
properly equipped and prepared, a wide array of species can be sighted
by exploring in forest areas. Although most species are non-poisonous
and not aggressive, viewing them from a distance without contact is recommended
for the non-expert, just as it would be in North American forests.
Lizards - Many varieties
of small lizard, including species of anole, skinks and geckos are common
in Amazonia, chasing small insect prey. The larger Ctenosaurs (black
iguanas) and Iguanidae (the green type we know as pets) browse on fruits
and leaves and any accidental delicacies, such as birds eggs or mouse nests
that they might stumble upon. The large (up to 4 foot long), fast
and wary 'jacareranha' (Tupinambis nigropuctatus) can often be spotted
on riverbanks, poking among downed tree limbs and brush piles. The tegu,
the largest of the South American lizards (almost 5 feet in length), lives
in forested areas.
Turtles - In light of the Amazon's great
biodiversity, the relatively small variety of turtle species found there
(about 20 species) is surprising. Added to this, their desirability
as food has made them relatively scarce in populated areas. In the
remote reaches of the rivers we fish, however, visitors can still spot
a variety of interesting species. The matamata (Chelus fimbriatus),
a prehestoric looking giant, is an angler just as we are. Laying
camouflaged on the bottom with their cavernous mouths opened wide, they
wiggle their wormlike tongues in order to attract curious fishes.
I know a lot of plastic worm fishermen who wish they could do the same
thing as effectively. The arrau turtle (Podocnemus sp.), reaching
up to 100 pounds, can be spotted basking on the banks in remote areas.
The jabuti (Geocholone sp.), a large tortoise, forages for
fruit in the forest.
Amphibians - A tremendous variety of the
world's most unusual frogs reside in the Amazon. Showing diverse
life cycle specialization and modes of reproduction, Amazonian frogs, toads
and tree frogs represent the most complex levels of amphibian development
anywhere. The famous poison dart frog has the unusual mating habit
(for amphibians) of guarding their eggs. Upon hatching, the female
carries each tadpole to its own water-holding bromeliad (a tropical plant)
while the male stays on guard duty. When all the young are dispersed,
the female makes regular rounds of the nurseries, depositing an unfertilized
egg, as food for the developing tadpole, in each one. Other remarkable
species of Amazon frog give birth to live young, while some even skip the
tadpole stage and emerge as fully formed miniature adults. Visitors
can't miss the presence of the frogs. The chorus begins every evening
at sundown and contains a cacaphonous mix of voices closely resembling
chainsaws, motorcycles and Budweiser commercials. After a few nights,
I can't get to sleep without it. |