Tracie "The Bug Lady" invites you on an
out of this world walk on...
hidden treasures of Drake Bay, Costa Rica with Tracie "The Bug Lady" .
Meet the Bug
Tales from the
Facts about Drake Bay, Costa Rica
Travel To Drake Bay
Drake Bay Area Map
Tips for Travelers
Tree Frogs are a common sight in Drake Bay, and very often they are heard
before they are seen.
Their raucous call fills the
air throughout the rainy season and during the dry season rains. They
are good sized tree frogs and adults measure between 40 to 78
common name comes from the black patch that starts at the tip of the
snout and continues through the eye and the eardrum, along the frog's face.
This black mask will enhance the frog's camouflage by hiding the shape of the eye, which is
what many predators will use to detect their prey.
They can change their color and you may find frogs with
coloration ranging from light tan to olive green.
When Masked Tree Frogs are breeding, males can be
found at nighttime calling from mud puddles or swampy areas and
also, quite reliably, at La Paloma Lodge's swimming pool.
call is a very loud "wrauk!" and they are normally floating on
the surface of the water while calling. We have encountered
males calling in vegetation, although not as loudly as when in water. As
they call, their throat sac will inflate into two large distinct
bubbles, as can be seen pictured on the right. If a female is
attracted to a calling male, she will join him in his pool and they
will unite in axillary amplexus when they mate. This is when the male
climbs onto the female's back and grasps her near the armpits, as
this point, the frogs will mate. The female will lay up to 2000 eggs
as the male fertilizes them. The eggs float on the surface of the
water and will normally hatch within the next 24 hours.
Once the tadpoles hatch,
they will develop in their puddle until metamorphosis is completed. This normally takes between 60 and 80 days. Because
they develop in puddles that may dry out if there are several days
without rain, the tadpoles are quite resistant to dehydration. They
may survive up to 24 hours out of the water. During this time, they
will hopefully get some rain and their puddle will fill up again.
mating, couples will remain in amplexus for some time and we
regularly see amplectant pairs moving through the vegetation. The
pair photographed here was on a vine about two meters above a
stream. As with most frogs, females are larger than males and in
this species they seem to be quite responsive.
Once on a Night Tour, we
encountered a large female perched in a tree about three meters off
the ground. While explaining a little about the Masked Tree Frog's
natural history, I imitated their call. Much to my chagrin, and our
tourists' amusement, she leapt from her perch and landed directly on
Masked Tree Frogs inhabit
Humid Lowland Forests throughout the Pacific and Caribbean regions
of Costa Rica. They are absent from the much drier Guanacaste
Province, in the northwest of the country.
Masked Tree Frogs are known
to exist in Honduras, Nicaragua, Costa Rica, Panama, Ecuador and
2001 A Guide to Amphibians and Reptiles of Costa Rica
Savage, J. 2002 The Amphibians and Reptiles of
Costa Rica University of Chicago Press
Meet the Bug Lady
Tales from the
about Drake Bay, Costa Rica
Travel to Drake Bay
Drake Bay Area Map
Resorts in Drake Bay
Tours in Drake Bay
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