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  Section: Monitor Lizards » The Lifestyles Of Monitor Lizards
 
 
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Introduction to the Lifestyles of Monitor Lizards

 
     
 
Content of The Lifestyles Of Monitor Lizards
» Intoduction
» Defence
» Movement & Shelter
» Feeding
» Social Behaviour
» Reproduction
» Bioblography
In order to be successful newly-hatched monitor lizards must evade predators and catch enough food to allow them to grow large enough to reproduce. On reaching sexual maturity females must invest massive amounts of energy in egg production and select a male who will make a good father for her offspring. Male monitors must search for females and assert their right to mate by fighting off rivals. Once copulation is achieved the female must find or build a nest site which will keep her eggs safe until they hatch. From egg to the grave the lizards' behaviour is under the strict constraints of their need to thermoregulate and control water loss, which may restrict their activity to less than half of the year.

The lifestyles of most monitor lizards are virtually unknown. The species
that have been studied show that there are great variations in behaviour both between species and individuals. This is not surprising considering the incredible range of sizes found amongst monitor lizards and the wide variety of habitats that they are found in, including some of the driest deserts and wettest forests on Earth. Whilst some species, such as the Bengal monitor, are able to survive in many different habitats, others, such as Gray's monitor, are restricted to a very narrow range of environmenl~. The distribution of the species also varies tremendously. The desert monitor is found in virtually all deserts from west Africa to east India, an area covering over 300,000,000m2 whereas the total range of the Komodo dragon, which is found on only four small islands, is less than 2000km2. The entire known range of Teri's goanna amounts to less than 100km2. (Mertens 1942, Auffenberg 1981, Irwin 1994).



Attribution / Courtesy: Daniel Bennett. 1995. A Little Book of Monitor Lizards. Viper Press U.K.
 
     
 
 
     



     
 
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