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26 Cards in this Set
- Front
- Back
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Order: Squamata
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Most successful reptile group
~90% of living reptiles Origions in the early cretaceous ~130 MYA |
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Sauria
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Sub order:
Lizards |
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Australian Lizards
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Agamidae (dragon Lizards)~50spp
Gekkonidae (geckos)~90spp Pygopodidae (legless lizards)~35 spp Scincidae (skinks)~270 spp Varanidae (goannas)~30spp |
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Invasions from Asia via Indonesian archipelago into papua new guinea
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<30mya
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Family Agamidae
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DRAGON LIZARDS
*Origin- N hemisphere came to australia via intonesian archipelago 20-30mya *all spp ENDEMIC *arid and semi-arid habitats *dinural heliotherms, terrestrial, few arboreal *10-1500 g *DONT DROP TAIL *Oviparous (2-20 eggs) *temp dependent sex determination *most insectivorous larger spp- larger prey sit and wait predators 3 Lineages genus Hypsilurus genus Physignathus amphibolurous group |
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diurnal heliotherm
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*body temperature fluctuates with air temperature.
* @night temp goes down, gets a lot of sun in the morning to get it to an active level |
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Thorny Devil
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Family Agamidae
Moloch horridus *central deserts *eats ants *gathers water in skin *10cm long |
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Frilled Neck Lizard
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Family Agamidae
insectivorous semi aboreal n australia |
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Mallee dragon
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Family Agamidae
small ~5cm live one year S/central australia |
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Bearded Dragon
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Family Agamidae
*insectivorous *head bobbing, body rocking, run, hiss and get bigger or freeze display behavior *COOLING/HEATING hydteris was first discribed in this lizard Allows faster heating, slower cooling--> longer activity times heart rate faster in the day and slows at night |
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Eastern Water Dragon
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Family Agamidae
Common near water in Brisbane ~50 cm long escapes into water when scared eats insects and other small animals |
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Family Gekkonidae
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GECKOS
*Ancient- origin Gondwana/Eurasia * ~90 spp in 18 genera *3 subfamilies in world In AUStralia- Gekkoninae and Diplodactylinae (in only OZ) Nocturnal. DROP and regenerate tail *Terrestrial and aboreal *setae on toe pads can hang upsidown, toes peel from an edge off the surface *2 eggs in a clutch nest (lay eggs) communally *sexually producing and parthenogenic clones, polar body rejoins, dont need males |
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Southern Leaf-tailed gecko
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Saltuarius swaini
~13 cm long lives on tree trunk in rainforest (partic strangler figs) has huge nubby tail camouflage |
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Knob-tailed gecko
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Nephrurus asper
~8cm long large body small stubby tail *doesnt drop tail |
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Robust Velvet Gecko
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Oedura robusta
Aboreal can be found in homes near forest doesnt bark doesnt forage around light in S QLD and N NSW |
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Asian House Gecko
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Introduced
Found in and around human dwellings Feeds on flying insects barks |
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Family Pygopodidae
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Legless Lizards
*Restricted to OZ and New Guinea in arid/semi arid areas NOT in tasmania ~35 spp in 8 genera *no legs or limbs-scaly flap *live in soil and leaf litter *feed on invertebrates, some prey on small lizards *DROP tail and regenerate *Oviparous ~2 in clutch some communal laying |
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Delma nasuta
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in central and western australia
arid regions invertebrate predator |
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Burton's Snake-Lizard
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specialist skink predator
widespread distribution in OZ |
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Family Scincidae
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Skinks
*Anicient, Gondwana Origion for Australian Skinks *Widespread in the world *most diverse group of lizards ~270 spp in 20 genera **boney secondary palate and composite osteoderms under each scale deposits of cone secreted out of skin *Variation in body form short and stubby long and thin limb length variable long in climbers, short in terrestrial forms *variation in habitat *most are insectavors many are onmivor *dinural and heliothermic *oviparous and some nest communally *some are viviparous (cold habitat) some have placenta to transfer nutrients *3 GROUPS Sphenomorphous Mabuya Eugongylus |
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Mabuya
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Largest skinks
all viviparous some ovoviviparous many are omniverous insects snails small fruit and flowers *Blue-Tongue lizard large wide-spread omniverous *Shingle back or Sleepy Lizard (saw at australia zoo) omniverous slow moving males court females by following them in early spring *Land Mullet Rainforests, territorial w/ retreat site, onmiverous |
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Sphenomorphous Group
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*(ie) Eastern Water Skink
Inhabits stream banks *common along water ways in brisbane areas *insectivorous and eats smaller skinks *viviparous |
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Eugongylus group
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small skinks
*garden or grass skink eats andts and lays 1-5 eggs, communal in suburban gardens |
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Family Varanidae
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MONITORS
small group of lizards ~30 spp in 1 genus in africa and asia and australia... **originated in australia *medium to large sized lizards with forked tongues *terrestrial and arboreal, some aquatic *oviparous lay eggs in termite nests |
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Lace Monitor
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Common Goanna
Terrestrial and arboreal active prey searching insects, birds and eggs, lizards, small mammals lay in termite nests second biggest lizard ~200 cm |
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Short Tailed Pigmy Monitor
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worlds smallest varanid lizard
eats arthropods, and small lixards desert sand dune areas |
