Category Archives: Frogs

Australian frogs

Central Coast Walk

The clouds rolled in late in the afternoon trapping a bit of warmth yesterdays sun, making for what seemed to be a good night out bushwalking. A few hours of trundling with head torch light, yielded a variety of frogs, spiders and other inverts. Not seen, but heard were also the distant thump of 2 swamp wallabies, and the squeeks of a bandicoot.

A quick overview of the bulk of the highlights from that walk, captions are brief because its 3am and I should probably get some sleep.

striped-marshfrog
Striped Marsh Frog, Limnodynastes peronii
dragonfly_emerging
Dragonfly Emerging, transitioning from aquatic nymph about to get its wings.
frog_uperoleia-sp
Frog, Uperolei sp
spider_feeding
Spider, feeding on insect caught in web
huntsman
Huntsman
huntsman_underside
Huntsman, sporting patches of blue and red beneath
spittle-bug
Spittle bug beneath a defensive layer of bubbles
mantis_grooming
Mantis grooming
mantis-head
Mantis – head detail feat pseudo pupils
frog3_uperoleia-sp
Frog, Uperoleia sp
huntsman2
Huntsman
leaf-curling-spider
Leaf-curling Spider, Araneus dimidiata
perons-tree-frog_litoria-pe
Peron’s Tree Frog, Litoria peronii
dwarf-tree-frog_litoria-fal
Eastern Dwarf Tree Frog , Litoria fallax – Calling
huntsman3
Huntsman
wolf-spider
Wolf Spider
frog4
Frog
roach-with-ootheca
Roach carrying egg case
spider4
Enjoyed the finer detail of this orb weaver
spider4_crop
more detail
sundew1
Sundew with flower
sundew1b
Sundew leaf detail – sticky globules for ensnaring prey, small insects
sundew1c
Sundew – flower detail
water-scorpions
Water Scorpions, mating?
phasmid
Phasmid!
phasmids
Phasmids!
weevil
A tiny Weevil
ants-tending-lerps
Ants tending scale insects farming them for honeydew
caterpillar
Caterpillar
caterpillar-b
A closer look at their spikey defences
huntsman4
Huntsman – feeding, loved the iridescence of their mandibles
marbled-scorpion
An actual scorpion, Marbled Scorpion
spider2
Metallic Spider, with prey
fishing-spider
Fishing Spider

Horribly Slack

It has been a terribly long time since updating my blog, that is in the tradition of starting most diaries – we soon become so distracted by what we are doing that writing about it too can easily slip our mind.

A few highlights..

Powerful Owl with prey, the tail half of a ring-tail possum.
A mustard-bellied snake, from a rescue in the Blue Mountains, NSW
An Ornate Sea Snake, which I had the privilege of assisting on a rescue with.
Blue Mountains Tree Frog, calling from a mossy boulder

Insights into the life cycle of Striped Marsh Frogs, Limnodynastes peronii

A super common species found on the Central Coast. the Striped Marsh Frog, Limnodynastes peronii, which I helped Veronica Grigaltchik with collecting floating foam egg nests during her field work.

A recording of the males “Tok.. Tok.. Tok”  call:

Adult Striped Marsh Frog
Adult Striped Marsh Frog
Adult male, calling from damp cover
Adult male, calling from damp cover
Floating egg nest in a sheltered, damp position
Floating egg nest in a sheltered, damp position
Getting a closer look, for collection under a scientific permit
Getting a closer look, for collection under a scientific permit
A closer look at the developing embryo
Tadpoles free from their eggs
Tadpoles free from their eggs
Marsh Frogs like many other species, as tadpoles, are vegetarian, eating the algae filmd which grows on the rocks and walls of their environment, as well as broken down plant material - though, have fed assorted tadpoles dead snails, which are quickly hollowed out from their shells. In captivity, they may be supplemented with fish food, frozen lettuce which has been frozen or boiled to break down the cell structure to help make it more readily torn apart and consumed - served at room temperature in small amounts as to not fowl and corrupt the water.
Marsh Frogs like many other species, as tadpoles, are vegetarian, eating the algae filmd which grows on the rocks and walls of their environment, as well as broken down plant material – though, have fed assorted tadpoles dead snails, which are quickly hollowed out from their shells. In captivity, they may be supplemented with fish food, frozen lettuce which has been frozen or boiled to break down the cell structure to help make it more readily torn apart and consumed – served at room temperature in small amounts as to not fowl and corrupt the water.
A developed tadpole
A developed tadpole
A small metamorph which has mostly resorbed the reserves of energy from the no longer needed tadpole tail
A small metamorph which has mostly resorbed the reserves of energy from the no longer needed tadpole tail
Frogs make up a valuable resource in their environment for other wildlife, including this Red-Bellied Black Snake.
Frogs make up a valuable resource in their environment for other wildlife, including this Red-Bellied Black Snake.

Common Eastern Froglet, Crinia Signifera, Highlights of their Life Cycle

These are one of our most common and smallest local frogs, and may breed in ephemeral soaks, including patches as compact as a tyre depression on a fire trail, which can make for easy observations should you be strolling along a trail at night, though, you may even find them active during the day in a warm sheltered spot – sitting still for a few minutes, they can return to calling and being active.

A male calling from the base of a water plant in a soak
A male calling from the base of a water plant in a soak 

(A recording of their call: Common Eastern Froglet Call )

Calling from under fallen leaves by the waters edge
Calling from under fallen leaves by the waters edge
Calling from a small soak, note expanded vocal sack
Calling from a small soak, note expanded vocal sack
Amplecting
Amplecting
Amplecting with egg deposition, the males "nuptial grip" around her abdomen, applies pressure to assist in the female depositing the eggs.
Amplecting with egg deposition, the males “nuptial grip” around her abdomen, applies pressure to assist in the female depositing the eggs.
A closer look at some deposited eggs
A closer look at some deposited eggs
Developing into tadpoles inside their eggs - these eggs were deposited in a shallow soak in the middle of a fire trail
Developing into tadpoles inside their eggs – these eggs were deposited in a shallow soak in the middle of a fire trail
Crinia metamorphs that were raised to ID the eggs.. hinting at their variable colours and patterns
Crinia metamorphs that were raised to ID the eggs.. hinting at their variable colours and patterns
Some will go on to mate as adults, others, will be filtered out by predators - like this Black Bellied Marsh Snake, Hemiaspis signata
Some will go on to mate as adults, others, will be filtered out by predators – like this Black Bellied Marsh Snake, Hemiaspis signata