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Increased maximun temperatures threaten some lizard species in the highly biodiverse tropical and subtropical regions. Species such as thermoconformers in tropical forests and also live bearers have physiological characteristics that make them particularly vulnerable to climate change. The varanids are generally top predators with large territories and low population densities. These charactersitics make them vulnerable to habitat loss, habitat fragmentation, and over-harvesting, and have resulted in all monitors listed by CITES as threatened species with many Endangered, and five species “threatened with extinction.”

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Can humans share spaceship earth?. Eric R. Pianka. Amphibian and Reptile Conservation 6(1):1-24.

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 Varanus glauerti    Varanus rudicollis

Summary: Anthropogenic effects have increased the greenhouse effect, which has changed the climate to produce ever increasing maximum temperatures.Increased temperatures threaten some lizard species in highly biodiverse tropical and subtropicalregions. Some, such as thermoconformer species in tropical forests and live bearers appear to be particularly vulnerable. Most varanids are top predators, generally have large territories, and have low population densities, which make them vulnerable to habitat loss, habitat fragmentation, and over-harvesting. All monitor lizards are listed by CITES as Endangered, and five species are officially listed as “threatened with extinction.”

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    Dr. Browne established the Internet based ARC in 2011 and expanded it globally in 2013. Robert is committed to achieving the ARC's goal to provide for the sustainable management of amphibians and reptiles. He has a wide international experience in herpetological conservation and has published over 40 scientific articles on amphibian and reptile conservation. see Biography