Asian grass frog – Amphibians of the Ryukyu Islands

The Asian grass frog  ( Fejervarya limnocharis ) is found on Mainland Japan and most of the Ryukyu Islands. The warty frog is fairly common on Okinawa. It’s biggest threats are pesticide exposure and habitat loss.

  • Scientific name: Fejervarya limnocharis
  • Common name: Asian grass frog, marsh frog and common pond frog
  • Distribution: Ryukyu Islands and Mainland Japan
  • Habitat: Rice fields, ditches, marshes, parks and farm fields.
  • Diet: Insects
  • Average size: 45mm-75mm
  • Color: light brown with a white belly
Asian grass frog - 60mm macro

Asian grass frog – Canon 70d * 60mm macro

Wide angle macro - Canon 70d *Tokina fisheye

Wide angle macro – Canon 70d *Tokina fisheye

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Asian grass frog- Macro

Asian marsh frog - drainage ditch

Asian marsh frog – drainage ditch

Asian marsh frog

Asian marsh frog

Asian grass frog feeding

Asian grass frog feeding

Asian marsh frog - Okuma resort

Asian marsh frog – Okuma resort

Asian grass frog -MYN

Asian grass frog -MYN

Egret feeding -the last goodbye

Egret feeding -the last goodbye

Have a great day!

Okinawa green tree frog – Ryukyu Islands

The Okinawa green tree frog ( Rhacophorus viridis viridis ) is found on Okinawa, Iheya and Kume Island.

  • Scientific name: Rhacophorus viridis viridis
  • Common name: Okinawa Green tree frog
  • Distribution: Okinawa, Kume, and Iheya.
  • Habitat: Forests, mountain slopes and farm fields near water.
  • Diet: Insects
  • Average size: 45mm-75mm
  • Color: Olive green, Bright green and dark brown
Okinawa Green tree frog

Okinawa Green tree frog

This beautiful frog is a master of camouflage.  I often find it resting on tree branches, blending in with the surrounding green leaves.

Natural habitat

Natural habitat

Green tree frog

Green tree frog

Breading season stretches from February to April on Okinawa.

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Green tree frog mating

On Kume Island the tree frogs transform to a golden brown when mating.

Kume Island tree frog

Kume Island tree frog

They construct a foam nest on a tree branch above a still water source. Eventually the foam liquefies when the eggs are ready to hatch.

Frog foam nest

Frog foam nest

Not all frogs survive to make the nest. The Akamata is the most common snake on the Okinawan Islands.  It feeds on venomous habu snakes, baby sea turtles, lizards and frogs.

Akamata feeding

Akamata feeding

 

Photographed on white for the Meet your Neighbours global biodiversity project.

MYN Technique

MYN Technique

MYN Technique

MYN Technique

Green tree frog

Green tree frog

I often find this frog searching for insects on the road.

Roadside green tree frog

Roadside green tree frog

Let’s protect the wildlife of Okinawa.

 

 

Ryukyu tip-nosed frog (Odorrana narina) – Frogs of Okinawa

The Ryukyu tip-nosed frog ( Odorrana narina) is found in Northern Okinawa. This endemic frog is currently listed endangered on the IUCN red list. It’s biggest threat is habitat loss.

  • Scientific name: Odorrana narina
  • Common name: Ryukyu tip-nosed frog
  • Distribution: Yanbaru forest, Northern Okinawa
  • Habitat: Forest streams and mountain slopes
  • Diet: Insects, centipedes and small invertebrates
  • Average size: 50mm – 75mm

 

Ryukyu tip-nosed frog

Ryukyu tip-nosed frog – Stella 2000

The Ryukyu tip-nosed frog is a medium sized frog. It hides in holes and crevices in the daytime.

Ryukyu tip-nosed frog- WAM

Ryukyu tip-nosed frog –  Tokina 10-17mm

Ryukyu tip-nosed frog

Ryukyu tip-nosed frog

It feeds during the night on small insects and centipedes.

Ryukyu tip-nosed frog -wide angle macro

Ryukyu tip-nosed frog -wide angle macro, Stella 2000

Photographed on white for the Meet Your Neighbours global biodiversity project. All images are uses for conservation awareness and educational purposes.

Meet Your Neighbours Project -Okinawa

Meet Your Neighbours Project -Okinawa

It is sometimes found on roads searching for food after heavy rains.

Ryukyu Tip-nosed frog -Red list

Ryukyu Tip-nosed frog -Red list

Be careful and pay close attention to crossing wildlife.

Crossing wildlife- wide angle macro

Crossing wildlife- wide angle macro

Road kill- Ryukyu Tip-nosed frog

Road kill- Ryukyu Tip-nosed frog

Lets protect the wildlife of Okinawa!

 

 

Facing extinction – Ishikawa’s Frog (Odorrana ishikawae)

Ishikawa’s frog (Odorrana ishikawae) is the most beautiful frog found in Japan. It is only found in northern Okinawa and currently on the endangered species list. It is one of the many endemic species facing extinction due to habitat loss. Ishikawa’s frog is a designated national monument of Okinawa.

This is my favorite frog on Okinawa. I have only seen about a dozen in the last three years.

shikawa's Frog (Odorrana ishikawae) Yanbaru forest ,Okinawa

Ishikawa’s Frog (Odorrana ishikawae)  Night dwelling in the Yanbaru forest, Okinawa

They live around mountain streams in the Yanbaru forest. They hide in cracks and crevices in the rocks making it hard to photograph them at times.

Ishikawa's Frog (Odorrana ishikawae) Yanbaru forest ,Okinawa

Adult Ishikawa’s Frog (Odorrana ishikawae)   ” out of the den “

They are also masters of of camouflage. The unique pattern helps them blend into the the moss and leaves on the riverside.

ishikawa's Frog (Odorrana ishikawae) Yanbaru forest ,Okinawa

Ishikawa’s Frog (Odorrana ishikawae)       ” blending into the surrounding  “

Iskikawa's frog searching for a meal

Iskikawa’s frog searching for a meal

Photographing the frog on white ( MYN technique ) isolates the subject without any distractions. The images are used for conversation awareness and educational purposes.

ishikawa's Frog (Odorrana ishikawae) Yanbaru forest ,Okinawa

Ishikawa’s Frog (Odorrana ishikawae)     MYN  - Isolation Technique

A juvenile Ishikawa’s frog searching for food.  (Wide angle perspective)

herpetologists dream come true - the find

herpetologists dream come true – the find

Sometimes they can bee seen crossing the road !

Crossing the road - Kunigami Village

Crossing the road – Kunigami Village

Ishikawa's Frog

Ishikawa’s Frog – Photographed using the L&M Stella 2000

Top view- Ishikawa's frog

Top view- Ishikawa’s frog

Be careful and pay close attention to crossing wildlife.

Ishikawas frog - Roadkill

Ishikawas frog – Roadkill

Ishikawa's Frog

Ishikawa’s Frog -Wide angle macro photography

Let’s protect the wildlife of Okinawa!