Native reptiles of the Illawarra (excluding marine species)
Family
|
Species
|
Common name
|
Chelonidae
|
Chelodina longicollis
|
Snake-necked Turtle
|
Gekkonidae
|
Phyllurus platurus
|
Leaf-tailed Gecko
|
Oedura lesueurii
|
Lesueur's Gecko
| |
Agamidae
|
Amphibolurus muricatus
|
Jacky Lizard
|
Intellagama lesueurii howitti
|
Gippsland Water Dragon
| |
Intellagama lesueurii lesueurii
|
Eastern Water Dragon
| |
Varanidae
|
Varanus rosenbergi
|
Heath Monitor*
|
Varanus varius
|
Lace Monitor
| |
Pygopodidae
|
Pygopus lepidopodus
|
Scaly Foot
|
Scincidae
|
Acritoscincus platynotum
|
Red-throated Skink
|
Anepischetosia maccoyi
|
Maccoy’s Skink
| |
Cryptoblepharus pulcher
|
Snake-eyed Skink
| |
Ctenotus taeniolatus
|
Copper-tailed Skink
| |
Cyclodomorphus michaeli
|
She-oak Skink
| |
Egernia cunninghami
|
Cunningham's Skink
| |
Egernia saxatilis
|
Black Rock Skink
| |
Liopholis whitii
|
White's Skink
| |
Eulamprus quoyii
|
Eastern Water-skink
| |
Eulamprus tenuis
|
Barred-sided Skink
| |
Lampropholis delicata
|
Grass Skink
| |
Lampropholis guichenoti
|
Garden Skink
| |
Saiphos equalis
|
Three-toed Skink
| |
Saproscincus spectabilis
|
Gully Skink
| |
Saproscincus mustelinus
|
Weasel Skink
| |
Tiliqua scincoides
|
Blue-tongue Skink
| |
Pythonidae
|
Morelia spilota spilota
|
Diamond Python
|
Typhlopidae
|
Ramphotyphlops nigrescens
|
Black Blind Snake
|
Colubridae
|
Dendrelaphis punctulatus
|
Green Tree Snake
|
Boiga irregularis
|
Brown Tree Snake
| |
Elapidae
|
Acanthophis antarcticus
|
Death Adder
|
Cacophis squamulosus
|
Golden-crowned Snake
| |
Demansia psammophis
|
Yellow-faced Whip Snake
| |
Drysdalia rhodogaster
|
Masters Snake
| |
Furina diadema
|
Red-naped Snake
| |
Hemiaspis signata
|
Swamp Snake
| |
Hoplocephalus bungaroides
|
Broad-headed Snake*
| |
Notechis scutatus
|
Eastern Tiger Snake
| |
Pseudechis porphyriacus
|
Red-bellied Black Snake
| |
Pseudonaja textilis
|
Brown Snake
| |
Rhinoplocephalus nigrescens
|
Small-eyed Snake
| |
Vermicella annulata
|
Bandy Bandy
|
Urban reptiles
The most common reptile in the region is the Grass Skink, being found in gardens, heath, woodland and tall open forest. Similarly the Garden Skink is ubiquitous in gardens and the eggs of both species are frequently found in summer under bricks, pot plants and timber. Less common is the Weasel Skink that is found in moist gardens with mulch and shade. Recently a close relative of the Weasel Skink, the Gully Skink has turned up at Stanwell Park in urban lots that support rainforest species in the mid-canopy. Historically the Gully Skink was found as far south as Sydney and it is likely that it made its way to the area by stowing away in potted garden plants. The Gully Skink is indicative of the anthropocene, that is a world where plants and animals are being moved around and mixed up by human actions.
Other skinks that live in urban landscapes include the Blue-tongued Skink (the largest skink to be commensal with urban humans), the Elegant Snake-eyed Skink, Eastern Water Skink, Barred-sided Skink and the Three Toed Skink. The Blue-tongue is an iconic Australian species and persists in urban Sydney, testimony to its ability to adapt. I remember as a child finding lots of these lizards in an abandoned lot in Earlwood, Sydney 47 years ago. The tin roof blown off an abandoned house and scattered sheets of iron lay on Kikuyu grass. The lot had sandstone rock outcrops and lots of snails – perfect criteria for Blue-tongues. Surprisingly this species is rarely found when doing foot searches in the bush. I suppose they see people from a distance and take cover.
The Grass Skink, the Illawarra's most common reptile, can be seen in suburban gardens. Image by Garry Daly ©. |
The Gully Skink is a new arrival in the region. Image by Garry Daly ©. |
The Blue-tongue Skink (also known as the Blue-tongue Lizard) can survive in urban areas, though many individuals end up as road kill. Image by Garry Daly ©. |
The Eastern Water Skink lives in damp areas and can be spotted in areas such as Puckey's Estate. Image by Garry Daly ©. |
The Three Toed Skink species lives under the ground and is unearthed when gardening or shifting mulch and compost. It has a bright yellow belly and really small arms and legs. This species has its southern limit at the south-eastern end of the Illawarra (Comerong Island). The only other lizard in the area that lives under the ground is Maccoy’s Skink. This animal generally likes cool shaded forests with fallen logs and has its northern limit in the Illawarra.
Few dragons live in the urban environment but the Eastern Water Dragon is abundant along Coalcliff Creek and can sleep under the houses that back onto that waterway. Elsewhere Water Dragon may live in backyards that border creeks and are common in Wollongong Botanic Gardens. From about the Minnamurra River south the Eastern Water Dragon is replaced by the Gippsland Water Dragon. These subspecies are races of the same animal and some individuals at Minnamurra River show characteristics of both races. Surprisingly there is a small population of Eastern Water Dragon at Shoalhaven Heads around Berry’s canal as elsewhere along the Shoalhaven River the Gippsland form is present.
Eastern Water Dragons persist in suitable habitat near urban areas. Image by Garry Daly ©. |
Leaf-tailed Geckoes used their mottled colouration as camouflage. The distinctive tail is not visible in this shot. Image by Garry Daly ©. |
The Snake-necked Turtle, with the long, somewhat sinuous neck on display. Image by Garry Daly ©. |
The Golden Crowned Snake may be seen in gardens and lying on driveways (where it is vulnerable to being run over by cars). Image by Garry Daly ©. |
Rural reptiles
On rural land there are many more species of reptile as habitat such as fallen timber, rock outcrops, dams and creeks are usually present. Species such as the Jacky Dragon are fairly common living in fallen timber and may perch on rocks. The Lace Monitor needs a large home range and cannot persist in suburbia being attacked by dogs and hit by cars. This species occurs at Stanwell Park but not elsewhere in the region! It turned up at the Park a few years ago coming down from the escarpment having not been seen there from 1960-2015. There are a few records of Lace Monitors from Seven Mile Beach but I not seen this species there. They are at Bomaderry, just outside of the area covered by this website.
Lace Monitors are large, heavy lizards that do not do well in suburban areas. Image by Garry Daly ©. |
The Heath Monitor occurs at Darkes Forest, outside the area covered by this review but may stray below the escarpment. This species is highly associated with woodland that grows on sandy soils and sandstone outcrops. There are quite a few species of reptile listed in the table below that are also highly associated with sandstone outcrops, perched swamps and woodland being habitat along the top of the Illawarra escarpment and covering the catchment areas not included in the nominated study area. They include the Lesueur's Gecko, Heath Monitor, Scaly Foot, Eastern Three-lined Skink, Red-throated Skink, Copper-tailed Skink, Cunningham's Skink, Black Rock Skink, White's Skink, Black Blind Snake, Green Tree Snake, Brown Tree Snake, Death Adder, Yellow-faced Whip Snake, Broad-headed Snake, Red-naped Snake and Bandy Bandy. They are listed here as people living near the escarpment might see them as they stray onto the coastal slopes. Species such as the Green Tree Snake and Brown Tree Snake are relatively recent arrivals to Australia and as the climate warms they will shift the habitat that they currently occupy and colonise more dense forest types along the east of the escarpment. There are some anomalies that I have found in these general distributions as the Black Blind Snake occurs at Dapto and Stanwell Park on clay-based soils.
Black Blind Snakes have a diet of ants and termites, which they locate by scent using their tongue. Image by Garry Daly ©. |
Eastern Brown Snakes have deadly venom but are not common in the Illawarra. Image by Garry Daly ©. |
So what can you do to attract native reptiles to your garden? Since reptiles mostly eat insects, other reptiles, birds and mammals, few species of plant can be advanced to cater for the diet of our local species. Larger lizards such as the Eastern Water Dragon and Blue-tongue do eat vegetation and fruit whereas juveniles of both species eat invertebrates. So for these species the fallen fruit of Lilly Pillies and figs probably are eaten but for the most part planting species that provided refuge habitat (as well as habitat for small lizard prey such as insects) is what is required for reptiles.
Species that have dense foliage such as Gymea Lilly (Doryanthes excelsa) and Spiny-headed Matt-rush (Lomandra longifolia) offer hiding places but reptiles need more than just one species of plant. To attract reptiles it is best to have a messy backyard with a wide variety of different species and a range of hiding places. You could say “Build it and they will come”. Habitat that reptiles use to hide and forage include mulch, dead timber, sheets of bark and stacks of rocks. Consider putting in ponds for Water Skinks, as well as frogs. Reptiles like a patchwork of places where they can bask and shuffle to cover. Rock piles and retaining walls are excellent habitat. I have made several rock walls and put pipes and made tunnels behind the bottom row of rocks so Blue Tongues have places to retire. These are now colonised by a whole host of animals including Water Skinks, Jacky Dragon and Eastern Small-eyed Snake. These animals do not live in the walls permanently but use the habitat as part of what is available in their home range.
Jacky Dragons can be encouraged into rural gardens and properties. Image by Garry Daly ©. |
Useful plants to attract reptiles
Common name
|
Scientific same
|
Fauna attracted
|
Use
|
Spiny-headed Matt-rush
|
Lomandra longifolia
|
Grass Skink
|
Refuge
|
Elkhorn
|
Platycerium bifurcatum
|
Barred-sided Skink
|
Refuge
|
River Oak
|
Casuarina cunninghamiana
|
Eastern Water Dragon
|
Perch
|
Kangaroo Grass
|
Themeda triandra
|
Blue-tongue, Scaly Foot
|
Refuge
|
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