Difference between revisions of "Lizard Behaviour"

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==Introduction==
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Lizards tend to be bright, alert and responsive, almost inquisitive. Captive-born ones are more tame and docile, and tolerate [[Lizard Handling and Restraint|handling]] and sometimes relax when being lightly stroked. Wild-caught lizards are often shy, wary and try to escape at the slightest disturbance.
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Lizards tend to be bright, alert and responsive. Captive-born ones will tolerate handling and appear to become tame. Wild-caught lizards are often shy, wary and try to escape at the slightest disturbance.
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==Defensive behaviour==
 
==Defensive behaviour==
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[[Image:Lizard_anole.jpg|200px|thumb|right|'''Defensive behaviour in an anole''' (Copyright © RVC)]][[Image:Horned_lizard_blood.jpg|200px|thumb|right|'''Coast horned lizard (''Phrynosoma coronatum'') after squirting blood from its eye to protect itself.''' (© Zylorian, Wikimedia Commons)]]
 
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When threatened, iguanas, [[Monitor|monitors]] and other lizards tend to display defensive aggression. They stand sideways to the threat, swallow air to increase their size, stand high off the ground to look bigger and lash at the threat with their tails. Some lizards may display head bobbing and push-ups or gape and threaten to bite.
 
  
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* When threatened or molested by other animals, such as dogs, coyotes or foxes, certain horned lizards (''Phrynosoma cornutum, P. coronatum and P. solare'') will respond by squirting a spectacular amount of blood from their [[Lizard Eye|eyes]], usually towards the predator's head, which causes it to retreat.
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Defensive behaviour is associated with territoriality, escape from potential predators or may be ritualised with reproduction or feeding. It may be exhibited with humans, conspecifics, other animals or with no stimulation.
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They stand sideways to the threat, swallow air to increase their size, stand high off the ground to look bigger and lash at the threat with their tails. Some lizards may display head bobbing and push-ups or gape and threaten to bite.
  
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Defensive behaviour is associated with territoriality, escape from potential predators or may be ritualised with [[Lizard Reproduction|reproduction]] or [[Lizard Feeding|feeding]]. It may be exhibited with humans, conspecifics, other animals or with no stimulation.
 
  
 
==Aggressive behaviour==
 
==Aggressive behaviour==
  
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Offensive aggression is rare and usually involves sexually mature iguana males during their breeding season from December to March in the northern hemisphere. They may attack anything entering their territory and attempt to bite them. It is recommended that these lizards be confined to their cage during this time.
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Offensive aggression is rare and usually involves sexually mature iguana males during their breeding season from December to March in the northern hemisphere.
  
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'''Owner-directed aggression'''
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They may attack anything entering their territory and attempt to bite them. It is recommended that these lizards be confined to their cage during this time.
  
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* Iguana bites can be very painful and owners should be warned to be careful. Hyper-aggressive males are best not handled. Castration for males is possible but it is unknown if this directly leads to a decrease in aggression. Its effect may not be seen until the following breeding season. Castration before puberty may be more effective in controlling potential aggression. Seasonal aggression may be worse at puberty and gradually decrease afterwards.
 
  
 
==Dominance==
 
==Dominance==
  
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When several lizards are [[Lizard Housing|housed]] together, aggression and dominance is not always overtly physical since actual fighting may not occur. Subtle behaviour by the dominant lizard may result in the subordinate staying away from basking areas and food and slowly dying of stress-enhanced [[Lizard Hyperthermia/ Hypothermia|hypothermia]] and starvation.
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When several lizards are housed together aggression and dominance is not always overtly physical since actual fighting may not occur. Subtle behaviour by the dominant lizard may result in the subordinate staying away from basking areas and food and slowly dying of stress-enhanced hypothermia and starvation.
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==Literature Search==
 
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[[File:CABI logo.jpg|left|90px]]
 
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Use these links to find recent scientific publications via CAB Abstracts (log in required unless accessing from a subscribing organisation).
 
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<br><br><br>
 
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[http://www.cabdirect.org/search.html?q=(title:(lizard)+OR+ab:(lizard)+OR+od:(lizards))+AND+(title:(behaviour)+OR+title:(behavior)+OR+subject:(behaviour)+OR+subject:(behavior)+OR+de:(behaviour)+OR+de:(behavior)+)&fq=sc:%22ve%22 Lizard Behaviour publications]
 
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[http://www.cabi.org/cabdirect/FullTextPDF/2010/20103181692.pdf ''' Reptile enrichment: thinking outside the pillowcase.''' Skurski, M.; The North American Veterinary Conference, Gainesville, USA, Small animal and exotics. Proceedings of the North American Veterinary Conference, Orlando, Florida, USA, 16-20 January 2010, 2010, pp 1693-1694 - '''Full text Article''']
 
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[http://www.cabi.org/cabdirect/FullTextPDF/2007/20073120016.pdf ''' Reptile behavioral problems, enrichment, and training.''' Fleming, G. J.; The North American Veterinary Conference, Gainesville, USA, Small animal and exotics. Proceedings of the North American Veterinary Conference, Volume 21, Orlando, Florida, USA, 2007, 2007, pp 1539-1541, 1 ref. - '''Full Text Article''']
 
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==References==
 
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* Mader, D.R. (2005). ''Reptile Medicine and Surgery''. Saunders. pp. 1264. ISBN 072169327X
 
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[[Category:Lizard]]
 

Revision as of 16:20, 17 February 2010


 This article is still under construction.


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Lizards tend to be bright, alert and responsive. Captive-born ones will tolerate handling and appear to become tame. Wild-caught lizards are often shy, wary and try to escape at the slightest disturbance.


Defensive behaviour

Defensive behaviour is associated with territoriality, escape from potential predators or may be ritualised with reproduction or feeding. It may be exhibited with humans, conspecifics, other animals or with no stimulation.

They stand sideways to the threat, swallow air to increase their size, stand high off the ground to look bigger and lash at the threat with their tails. Some lizards may display head bobbing and push-ups or gape and threaten to bite.


Aggressive behaviour

Offensive aggression is rare and usually involves sexually mature iguana males during their breeding season from December to March in the northern hemisphere.

They may attack anything entering their territory and attempt to bite them. It is recommended that these lizards be confined to their cage during this time.


Dominance

When several lizards are housed together aggression and dominance is not always overtly physical since actual fighting may not occur. Subtle behaviour by the dominant lizard may result in the subordinate staying away from basking areas and food and slowly dying of stress-enhanced hypothermia and starvation.

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