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Monthly Archives: July 2012

Argentine/Ornate Horned Frog Care: the “Pac Man Frog” and its Relatives

July 25, 2012 28 Comments 25986 Views

Ornate Horned FrogThe Argentine or Ornate Horned Frog (Ceratophrys ornata) may be the world’s most popular amphibian pet.  Dubbed the “Pac Man Frog” due to a resemblance to the large-mouthed video game character, it is beautifully colored and “charmingly” pugnacious in disposition.  Despite their size (females may be compared to salad bowls; males are much smaller), Horned Frogs require relatively little space and are an ideal choice for those seeking an interesting pet that may live to age 20 or more.  Albinos and other unique color morphs, as well as hybrids between related species, are available.

Natural History

Argentine Horned Frogs inhabit savannas (grasslands) in Argentina, Uruguay and Brazil. In some regions, they become dormant during cool, dry periods.

Seven related species have been described.  Of these, the Cranwell’s or Chaco Horned Frog (Ceratophrys cranwelli) is most frequently seen in the pet trade.  The following information can be applied to its care.  The Surinam Horned Frog (C. cornuta) bears the longest “horns” of all (please see photo).  Read More »

Reptile and Amphibian Conservation in the USA – 2012 Update

July 18, 2012 Comments Off on Reptile and Amphibian Conservation in the USA – 2012 Update 9518 Views

The global extinction crisis faced by amphibians has been much in the news in recent years, as have threats to sea turtles, Madagascar’s tortoises, Asia’s freshwater turtles and other long-suffering groups.  In the USA, a number of reptile and amphibian species are also in dire straits despite, in some cases, federal protection.  I hope this article inspires both hope and action in my many conservation-minded readers.

Unprecedented Agreement May Help 757 Species

Following a slew of lawsuits by the Center for Biological Diversity (CBD), the Federal government has agreed to speedily consider protecting an additional 757 native species under the Endangered Species Act (ESA).  The CDB employs an attorney who deals solely with amphibians and reptiles, and the agreement is said to be “airtight” and legally enforceable.

This agreement is an important step, as the ESA is our most powerful wildlife law.  Indeed, ESA listings have proven vital to the continued survival of many species.  For example, a recent CBD study of 110 ESA-protected species showed that 90% of them were recovering “on time”, according to the goals set at the original listing…not bad, considering what is happening to rhinos and other “protected” species elsewhere! Read More »

Crickets and Carotenoids – Study Examines Cricket Nutrient Levels

July 11, 2012 11 Comments 10304 Views

veggiesCaptive insect-eating reptiles and amphibians (and perhaps invertebrates) are often plagued by nutritional deficiencies. A highly-varied diet is a great way to ensure adequate nutrition, but most keepers have access to only a few feeder-insect species; gut-loading (providing nutritious diets to feeders) is helpful, but detailed studies are lacking. While touring several Japanese zoos a few years ago, I was intrigued by the number of cricket species being bred as herp food, and resolved to investigate the species and diets I saw in greater detail. A recent article in Zoo Biology (2011, V. 30), which provides insights into carotenoid supplementation in three different cricket species, has re-sparked my interest. I’ll summarize below.

Carotenoids

Carotenoids are pigments that occur in plants. Animals, as far as is known, cannot manufacture carotenoids but rather must obtain them through their diet.

Carotenoids benefit the immune system by acting as antioxidants, function in the reproductive and other systems, and are believed partially responsible for the health benefits enjoyed by people who regularly consume fruits and vegetables.  We know little of their role in reptile and amphibian health, but many zoo nutritionists believe them to be important. Read More »

“Salt Water” Snapping Turtles – Snappers and other Turtles in Estuaries

July 4, 2012 4 Comments 23678 Views

55 lb. Snapping turtleThe incredible diversity of life in tidal creeks and rivers has attracted me since childhood.  And while invertebrates and fishes predominate, areas where fresh and salt water meet hold wonderful surprises for reptile enthusiasts as well.  Today I’d like to discuss a turtle that I often find in brackish water habitats, and which seems to be evolving unique adaptations to survive there – the Snapping Turtle, Chelydra serpentina.

A Turtle Banquet

The Long Island (NY) tidal creeks (please see photo) that I frequent seem “paved” with crabs, marine worms, snails, bottom fishes, mussels, clams, shrimp and other foods that could be easily exploited by turtles.  In fact, research indicates that at least one marine turtle, the Kemp’s Ridley, actively migrates to the LI Sound, gaining up to a pound per week during the time it remains there.  The Snapping Turtles I’ve seen in such habitats have been quite large, and I can’t help but think that abundance of high quality, easily-caught food must play a role in their presence.

I’ve even been fortunate enough to come upon a family of River Otters in one tidal creek, a species long gone from LI but now making a comeback.  I’ve worked with captive otters, and can attest that if they are present, there’s lots of food about – their appetites are unbelievable! Read More »

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