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The Butaan Project - Monitoring Populations Print E-mail

Camera traps have allowed us to monitor butaan populations on Polillo in a way never attempted for any lizard species before

 

 

 

Image. All of our Trailmaster units are beyond repair and will cost $200 each to replace. You can sponsor a camera trap on Polillo and get regular updates on what it sees, and even prints of the best shots. 

ImageWe use camera traps to monitor butaan populations.We have tried many different models of camera traps, but very few are able to reocrd and photographs lizards reliably. The best model was the Trailmaster 550, which work well in the forest for about 16 months. Sending defective units to the manufacturer for repair has not solved the problems. In 2005 we had 17 working camera traps, currently we have none.


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Camera trap with no flash (800ASA film)
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Camera trap with flash (800 ASA)


Camera trapping lizards might seem harmless, but in fact the electronic flash creates considerable disturbance. Young lizards ignore camera traps but larger individuals are scared away by camera flash and either do not return or find alternative routes to fruit!!For this reason we usually set camera traps without flash. Consequently, it  can be difficult to recognise individual lizards because the pictures are dark. These problems are compounded by:

  • Shedding patterns
  • Differences in wet and dry patterns
  • Differences in film exposure

Nevertheless, we have a good knowledge of many butaan in the population.

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Probably the biggest and oldest butaan left on Polillo

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This adult male was probably killed in a trap in 2005

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Old FF, a long-term resident of the watershed reserve.

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A young butaan first recorded in 2004 that disappeared in 2006

And a better understanding of social systems in these mysterious animals.

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Two butaan leaving a tree together, July 2005
 

 

 

 

 
 

 

About Mampam
Savannah Monitor Book

 

Our pet-owners' guide to savannah monitor lizard is the first ever written by people who have studied the animals in the wild and bred them in captivity. There are at least seven books in print about the savannah monitor, but we think this is the only one worth reading! Last few available 

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Worldwide orders available

 

 
Help Mampam
The Butaan Project
The Butaan Project - Research
butaan3.jpgThe only obligate fruit-eaters among reptiles are three species of monitor lizard that live in the Philippines. Frugivorous vertebrates tend to be able to fly (almost all are bats and birds) and so these lizards have a unique ecological role as highly specialized and relatively immobile fruit eaters. Before this project started, the only studies of this unique giant and endangered lizard had involved killing the animals. We have developed a set of techniques that allow us to learn about these animals in a completely non-destructive way.
Read more...
 

 

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