Wild South East

a nature blog of south-east Victoria, mostly Gippsland


2 Comments

Around the traps

It has been a busy month for me so far. Not only was I involved in a long awaited survey near the Gippsland Lakes for the threatened New Holland Mouse but I’ve also just purchased a whole new camera setup. The only problem is I’m still learning the buttons and settings of this camera plus getting use to my new lenses. Apart from a bridge camera (cross between a compact and DSLR) I haven’t purchased a proper DSLR since 2007 and a lot has changed since then!

Anyway, below are some of my pics from the last 1½ weeks around various sites in Gippsland.

DSC_0163

Grey Shrike-thrush. Darriman Reserve, Giffard.

 

 

DSC_0207 (RT)

Sunset from Eagle’s Nest lookout, Inverloch.

 

 

DSC_0451 (RT)

White-lipped Snake found during the New Holland Mouse survey. Gippsland Lakes, Vic.

 

 

DSC_0473 (RT)

Agile Antechinus. Gippsland Lakes, Vic.

 

DSC_0373 (RT)

Agile Antechinus getting revenge!

 

DSC_0422

New Holland Mouse, Gippsland Lakes, Vic

 

DSC_0481 (RT)

Xanthorrhoea in the early morning. A favoured habitat for the New Holland Mouse.

The New Holland Mouse has only been recorded at 3 locations in Victoria in the last 15 years and these are Wilson’s Promontory, Providence Ponds and Gippsland Lakes, all within the Gippsland region. Originally the species was widespread throughout south-eastern Australia but is now restricted to fragmented areas of NSW, QLD, Victoria and Tasmania. We ended up trapping over 20 of the little guys near the Gippsland Lakes so this was a major success. We also had infra-red cameras set up which detected them as well.


Leave a comment

Southern Serpents (Gippsland’s Reptiles- Part 2)

Now spring has arrived snakes are starting to show their faces and as I tend work in prime snake habitats every year I couldn’t be happier (although some of my fellow workers have other thoughts on this). I have a soft spot for snakes and a lot of respect. This following blog describes some of the common species likely to be encountered in Gippsland, Victoria.

Although not as diverse as in the warmer parts of Australia, Gippsland’s snakes have evolved to withstand the bitter winters of the southern part of the continent. All species in Gippsland go through a period of semi-hibernation called torpor where they shelter under logs or in burrows during the cooler months. On warmer sunny days in winter many often emerge to feed before returning to a state of torpor in a shelter.

One species which has evolved to withstand at least some resilience to the cold is the White-lipped Snake Drysdalia coronoides.

White-lipped Snake Drysdalia coronoides. Morwell River wetlands, Morwell.

White-lipped Snake Drysdalia coronoides. Morwell River wetlands, Morwell.

This small, inconspicuous species often enters torpor later than most snakes and emerges earlier at the end. It’s also found in higher elevations than other snakes in the alpine regions for the same reasons. In the reasonably mild summer of 2014/15 I saw them more frequently than usual and this could have been due to the milder conditions being favourable to them.

Growing to a length of around 40cm it is generally an olive-grey or rusty brown colour with an orange to pink belly. The underside of juveniles is often much more brightly coloured as can be seen in the photos below. This individual was found in grass tussocks in the Latrobe Valley and was only about 25cm long. When disturbed it flashed it’s vivid belly at me and this is probably a defence mechanism of the species.

White-lipped Snake (juvenile)

White-lipped Snake (juvenile)

White-lipped Snake (juvenile) in 'defence' posture

White-lipped Snake (juvenile) in ‘defence’ posture

Skinks are the primary food of White-lipped Snakes with some frogs and small mammals taken also. Although venomous they are generally not regarded as life-threatening to humans. They can be found in a large variety of habitats from the coast to the alpine country.

The Lowland Copperhead Austrelaps superbus is probably the most commonly encountered species in the region and as it’s name suggests it is mostly found in the lowlands or plains. It can also be found in some elevated areas.

Lowland Copperhead Austrelaps superbus. Morwell, Victoria

Lowland Copperhead Austrelaps superbus. Hernes Oak, Victoria

Lowland Copperhead

Lowland Copperhead

Lowland Copperhead

Lowland Copperhead

Copperheads, although being highly poisonous, are not renowned for their aggressiveness and have caused few deaths in Australia. They feed mostly on frogs and lizards and will also eat small birds and mammals. The White-lipped Snake has been recorded as prey of this species. The Lowland Copperhead can grow up to 1.7m in total length but most adults encountered are between 1 and 1.5m.

The Highland Copperhead Austrelaps ramsayi is very similar to the Lowland species but differs by having more prominent white streaks on the labials (lip scales) and the head scales behind the eye are slightly different. This species can vary from brown or rusty-brown to almost black. It is found mostly in the high country and foothills and occasionally in lowland areas.

The Tiger Snake Notechis scutatus is a reasonably common species throughout Gippsland and grows to a length of 1.5m.

Tiger Snake Notechis scutatus (sub-adult). Yallourn, Vic

Tiger Snake Notechis scutatus (sub-adult). Yallourn, Vic. The striped markings of juveniles and adults gives the snake it’s common name.

Tiger Snake

Tiger Snake

Juvenile Tiger Snake

Juvenile Tiger Snake

Due to their taste for frogs they are often found near swamps and other wetlands and are capable of swimming and climbing very well.

Tiger Snakes are very good swimmers.

Tiger Snakes are very good swimmers.

Beside a frog-filled swamp I have seen a Black Rock Skink Egernia saxatilis moving about on a log within two metres of a basking Tiger Snake, seemingly aware that the snake posed it little threat and possibly using the snake for protection from predators. They will occasionally eat lizards, as well as small mammals and birds, so the skink was living dangerously!

Tiger Snakes are one of the most dangerous snakes in the world due to their aggressive nature if provoked and the high toxicity of their venom. Most human deaths from Tiger Snake bites occurred in the 1800’s and early 1900’s, probably due to the draining of wetlands for agriculture and housing which forced the snakes to become more mobile. They were possibly much more common and widespread than they are now. The majority of deaths in Australia since the mid 1900’s have been primarily due to the Eastern Brown Snake Pseudonaja textilis (see below) and the Western Brown or Gwarder Pseudonaja nuchalis.

The Eastern Brown Snake Pseudonaja textilis is a large species growing over 2m in length and is found throughout Gippsland but is more common in the drier parts.

Eastern Brown Snake Pseudonaja textilis. Snowy River National Park

Eastern Brown Snake Pseudonaja textilis. Snowy River National Park

Eastern Browns are responsible for a large proportion of human deaths in Australia due to their aggressive nature and toxic venom. While hiking I have stumbled accidentally across a pair of mating Eastern Browns and as a result the male has flung itself at me very aggressively. They feed on a wide range of vertebrates, particularly reptiles and small mammals.

The Red-bellied Black Snake Pseudechis porphyriacus is found throughout Gippsland in a wide variety of habitats from the high country to coastal areas.

Red-bellied Black Snake Pseudechis porphyriacus. Giffard, Vic

Red-bellied Black Snake Pseudechis porphyriacus. Giffard, Vic

Red-bellies account for almost no fatalities in Australia despite being highly poisonous. This is due to the fact that they are quite reluctant to bite and will flee rapidly if threatened. My daughter had an encounter with one recently that burst from a bush near her feet and dived in a stream. See my post in January https://wildsoutheast.wordpress.com/2015/01/03/camping-along-ben-cruachan-creek/

They can grow up to 2m but most individual seen are usually around 1.5m. The belly can be vivid red or pale pink-red depending on the region and individual. Their diet consists mostly of reptiles and frogs but will take other vertebrates.

Red-bellied Black Snake showing it's typical vivid red belly

Red-bellied Black Snake showing it’s typical vivid red belly and jet black body

Red-bellied Black Snake

Red-bellied Black Snake