That Reptile Blog – Reptile, Amphibian and Exotic Pet Care and Information

Gecko fans are fortunate indeed (I included, as I’ve worked with a great many in zoos and the field)…over 150 species are available in the pet trade, many of which do quite well in modest enclosures.  Among geckos we find lizards of every conceivable description – rainforest dwellers, desert specialists, burrowers, gliders, giants and many others.  Today I’ll review some guidelines that will help you to set up terrariums for a variety of species.  The following information can be applied to most available geckos, but details will vary.  Please post below for information on individual species.

Uploaded to Wikipedia Commons by Andrew S. Gardner

Natural History

The family Gekkonidae contains over 1,050 species.  Among lizards, their diversity is exceeded only by the skinks.

Geckos may be found in deserts, rainforests, woodlands and grasslands.  Some associate with people voluntarily –the aptly-named House Geckos favor our dwellings, while Tokay Geckos are established in Miami and other large cities.  Five species are native to the USA, but approximately 15 have been introduced from elsewhere.  Geckos range in size from the 1.2 inch-long Reef Geckos to the stout, 15 inch-long New Caledonian Giant Gecko.

The amazing ability of some geckos to run upside-down on ceilings was first recorded by Aristotle in the 4^th Century.  Gecko feet are being studied with a view towards creating new adhesives. Read More »

Some of our most familiar and desirable of reptile pets, such as the leopard gecko and the brilliantly-colored day geckos, are members of a fascinating family of lizards that I would like to introduce today.

The 1,050 or more species of geckos comprise the second largest of lizard families, the Gekkonidae (the largest is the Scincidae, or skinks). They range throughout the world, reaching their greatest diversity in desert and tropical habitats. “House geckos” of several species follow human habitation and are widely transplanted, including into the southeastern USA. Geckos range in size from the various Shaerodactylus species, some of which are full grown at 1.2 inches in length, to the New Caledonian giant gecko, Rhacodactylus leachianus, a bulky creature that tops out at nearly 15 inches. Several other species, now considered extinct but which may possibly still survive in Madagascar’s forest canopy, reached 24 inches in length.

Geckos generally lay 2 eggs, although some bear live young. Arboreal types often glue their eggs to tree branches or building walls. Most are insectivorous, but many take nectar and over-ripe fruits as well. The voracious tokay gecko, Gekko gecko, consumes nestling birds, small rodents and bats, snakes and other lizards. A number of species are highly endangered while others, such as the leopard gecko, Eublepharis macularius, are pet trade staples. Many have a long association with people, being welcome in homes for their insect-catching abilities and sometimes regarded as good luck symbols. Some years back, a store in NYC even rented tokay geckos for use as roach-control agents. However, the males’ habit of calling loudly (“Tokay-Tokay!”) at 4 AM and their pugnacious dispositions rendered the scheme less-than-profitable!

The ability of many geckos to climb sheer walls (even glass) and to run upside-down on ceilings was first recorded by Aristotle in the 4th century BC. Only recently has the secret behind this remarkable phenomenon been discovered. The toes of many species are covered with layered pads known as lamellae, which in turn support thousands of microscopic hair-like structures called setae. Their action against a surface sets up a weak molecular attraction known as the van-der-Waals force, and this, it seems, is the source of their unique method of adhesion. This phenomenon is being studied with a view towards creating new adhesives for use in industry.

Members of this huge family have evolved startling adaptations to a number of basic themes. To cite just one example – depending upon the species, tails are used to distract predators (by disengaging from the body), plug burrows, extrude noxious secretions, create sound, communicate with others, convey stability while gliding, store food and grip branches.

If you have a special interest in geckos, you may wish to join the Global Gecko Association, or to visit their website for further information:
http://www.gekkota.com/