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Free Ebook - The truth about Varanus exanthematicus Print E-mail

 

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In 2002 Ravi Thakoordyal and I wrote this book about savannah monitor lizards. There had been lots of other books about savannah monitor lizards published before, but they were not very good, and we thought that because I had studied the animal in the wild and Ravi had bred it in captivity we could write a better one. The book we wrote combined observations on the natural history of the animal with suggestions about how it should be kept in captivity. We assumed that Varanus exanthematicus would consistently respond to the same captive care as some other monitor lizards such as Varanus acanthurus and Varanus panoptes, whose husbandry had been revolutionised by pioneers in the USA.

After we wrote the book my attention shifted to a very different monitor lizard, and for 13 years I didn’t pay much attention to what was happening with savannah monitors in captivity. When I looked I was horrified. Captive breeding of Varanus exanthematicus is no more common today than in was in the 20th century and it’s clear that females either never cycle, or cycle a few times and never cycle again. Almost all females that do cycle are dead within two years. Almost no animals of either sex survived for five years and none for ten. The husbandry that we suggested has failed with the savannah monitor.

That was a horrific discovery. But worse was that suggestions that we had had made in that book been turned into dictums on the internet by well meaning, but ultimately misguided people.  Despite advocating very strict and demanding husbandry requirements for the lizards, their lizards failed to reproduce. For over a decade they had been preaching this stuff on the internet but there had been no improvement in the amount of captive breeding or maximum longevity in captivity. The only good thing to say for it is that it probably reduced the amount of juvenile mortality by highlighting their tendency to dehydrate. But they survive to become adults who are just sterile balls of lard. That is not successful reptile husbandry and anybody who tells you it is has their own agenda.

Responsible websites about savannah monitor lizards need to emphasize that the lizard is completely unsuitable for captivity and that nobody has ever succeeded in keeping it properly, despite the fact that there have been over 1 million specimens exported from three or four countries in West Africa since the 1970s. Instead they claim that they are competent to teach you how to care for savannah monitor lizards, and that keeping them in captivity can be a rewarding experience. I think that is a monstrous approach to a huge welfare problem in wildlife trade.

I cannot unwrite my book and take full responsibility for it. It was premature to claim that these methods would result in consistent success with the species, and it’s now clear that they are insufficient for Varanus exanthematicus. What’s needed is unambiguous recognition of the problem, concerted efforts to deter people from buying the animals (which fuels demand for more imports), and a practical guide to caring for savannah monitors that is manageable for rescue workers and the young and foolish people who have bought these lizards without being aware of the miserable plight of the animals in captivity. The “expert” website are of no help in this regard because they parrot certain recommendations from our book as the only acceptable parameters for husbandry, which is clearly not the case, and fail to warn prospective owners of the absolute failure of the species in captivity.

You can download the book here

 

 

 

 

 

 
 

 

About Mampam
Bye Bye Butaan

 butaan1.jpg

Butaan start to visit fruiting trees before they are large enough to swallow the fruits. They make repeat journeys to trees, perhaps to reinforce memory of the position of the tree. If the youngster survives it may continue to use this tree for many decades. Fruiting trees like this are a vital resource for entire populations of butaan. Learn more >


 
Help Mampam
The Butaan Project
Butaan are Obligate Frugivores!
An obligate frugivore is an animal whose diet throughout its range consist largely of fruit. Other obligate frugivores in the Philippines include flying foxes, hornbills and other birds. The butaan is much larger than any other obligate frugivore in the Philippines and had a much more restricted diet; on Polillo the diet of adult butaan consists almost entirely of eight species of fruits and two species of snails.

 

 

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