Okinawa green tree frog – Ryukyu Islands

Posted on February 22, 2017 by Admin11

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 © Shawn Miller

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 © Shawn Miller

Green tree frog © Shawn Miller

Amami green tree frog ( Rhacophorus viridis amamiensis) © Shawn Miller

The breeding season stretches from February to April on Okinawa.

Green tree frog mating © Shawn Miller

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

Kume Island tree frog © Shawn Miller

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 © Shawn Miller

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 snake feeding © Shawn Miller

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

MYN Technique © Shawn Miller

Green tree frog © Shawn Miller

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

Roadside green tree frog © Shawn Miller

” Know your nature with Shawn Miller ” Let’s protect the wildlife of Okinawa.

The Art of Wide-Angle Macro Photography by Shawn Miller

Posted on December 20, 2014 by Admin11

Wide-angle macro photography is popular with wildlife photographers. The technique allows the photographer to document the animal in its natural habitat and show the full scene it lives in. The photographs have great impact and deliver a bug eye perspective using a wide angle lens. I generally use off-camera flash with a custom soft box to make these photographs. Lately, I have been testing a variety of on-camera flashes to achieve a different perspective. One of the biggest challenges is lighting the subject evenly with soft diffused lighting.

The most popular lenses used for wide angle macro photography ( WAM )

Tokina fisheye 10-17mm f3.5-4.5
Nikon fisheye 10.5mm f2.8
Sigma fisheye 15mm f2.8 E
Venus Laowa 15mm f4 – (Manual focus only)

The Tokina 10-17mm Fisheye is my favorite lens in my bag and has been my go-to lens for the project “Crabs with Beach Trash Homes”

Tokina fisheye lens

Below are some of my favorite wide-angle macro images photographed in Okinawa-Japan.

Fighting pose – Preying mantis, IPhone 6s © Shawn Miller

Hermit crabs of Okinawa © Shawn Miller

Geograpsus grayi with eggs © Shawn Miller

Ishikawa’s Frog – The most beautiful frog in Japan © Shawn Miller

Horn-eyed ghost crab at sunset -Nikon 10.5mm © Shawn Miller

Herping in the yanbaru forest © Shawn Miller

Crabs with trash homes – Sesoko © Shawn Miller

Golden habu on a fence © Shawn Miller

Ghost crab – Nagahama beach © Shawn Miller

Pryer’s keelback feeding on a white jawed frog © Shawn Miller

Baby loggerhead leaving the nest © Shawn Miller

Invasive insects – Coconut rhinoceros beetle © Shawn Miller

Blue rock-thrush with wings spread © Shawn Miller

Princess habu -Yanbaru © Shawn Miller

Kuroiwa’s ground gecko crossing the road © Shawn Miller

Okinawan green tree frog © Shawn Miller

Giant stag Beetle (Dorcus titanus) -Ie Island © Shawn Miller

Okinawa tip-nosed frog ( Rana narina ) © Shawn Miller

Hermit crab at sunset © Shawn Miller

Land crab crossing the road at night © Shawn Miller

Hermit crabs with beach trash homes © Shawn Miller

On the move- Black-breasted leaf turtle © Shawn Miller

Asian long-horned beetle © Shawn Miller

Crabs with trash homes-Yomitan © Shawn Miller

Road dweller- Namie’s frog- Stella 2000 © Shawn Miller

Praying mantis @Hedo Point

zanpa lighthouse and hermit crabs

If you would like to learn more about this technique I recommend Wide-Angle Macro: The Essential Guide by Clay Bolt and Paul Harcourt Davies https://www.e-junkie.com/shop/product/482943.php

Crabs With Beach Trash Homes – Okinawa, Japan

Posted on October 19, 2014 by Admin11

Crabs with beach trash homes is a series I am currently working on. I photograph Blueberry hermit crabs (Coenobita purpureus) that have begun to use beach trash as their home. The crabs are photographed in their natural environment and also on white for the Meet Your Neighbours global biodiversity project. The images are used for environmental awareness and educational purposes.

Crabs with beach trash homes © Shawn Miller

Blueberry hermit crabs are commonly found on local beaches in Okinawa. Most crabs are blue but occasionally have color variations of purple, pink, orange and or gray. They prefer to have a seashell as a protective home but when no shell is available they adapt.

Blueberry hermit crabs (Coenobita purpureus)

Blueberry hermit crab (Coenobita purpureus) with a seashell © Shawn Miller

Before plastic caps filled our shorelines, hermit crabs adapted using tree nuts if no shells were available.

Hermit crab and tree nut © Shawn Miller

It’s becoming more common to find crabs with beach trash homes. I have friends combing local beaches in search of more crabs for my series. While these are cute images, our trash is becoming a serious problem to the ocean and the animals that call the shoreline home. I often find hermit crabs using a variety of plastic caps from twist top pet bottles, laundry detergent containers, small propane tanks, sports water bottles and beauty supplies.

Possible reason why Blueberry crabs adapt with beach trash

Limited number of available shells causing them to make due with the best homes they can find. This is a good example of adaptive behavior.

Hermit crabs are very social animals and often fight over shells. Having a protective lightweight shell that covers the abdomen (soft parts of the animal) is crucial for survival.

Hermit crabs fighting over prime real estate © Shawn Miller

Battle over real estate © Shawn Miller

A close-up of the sensitive abdomen (photographed using the MYN technique)

Naked hermit crab © Shawn Miller

Hermit crabs are scavengers and take advantage of any food washed ashore. They mainly feed on dead fish, barnacles, other crabs, algae, insects, plants, fruit and various seeds. The screw pine (Pandanus odifer) is one of their favorite foods. I imagine long ago these vital plants lined our shorelines in abundance. Numbers are decreasing due to deforestation.

Pandanus odifer © Shawn Miller

Eventually the fruit drops to the ground and the sweet smell attracts the hermit crabs

Hermit crab feeding © Shawn Miller

The hermit crabs feed on the the fresh keys and help with seed dispersal. They both benefit in this relationship. The Pandanus tree provides shelter, shade, food for the hermit crabs.

Hermit crab and Pandanus © Shawn Miller

Eventually the keys dry, turn brown and litter the local beaches. The dispersed keys provide a perfect environment for hermit crabs to blend in with.

Where the treeline meet the beach © Shawn Miller

Hermit crabs prefer to be in a shell that protects the entire body from predators. Sometimes they have to temporarily adapt with a much smaller shell. The retracted hermit crab tightens up to protect itself. Ball up, play dead and blend into the environment, minimizing the risk of being preyed upon.

Could this be a form of masquerading or just coincidence ? It resembles (mimics) the shape of the screw pine seed to possibly avoid detection from potential predators.

Hermit crab and screw pine seed © Shawn Miller

Hermit crabs have the ability to ball up tight to protect their eyes. (Transformers)

Hermit crab retracted © Shawn Miller

Below are some of my favorite images photographed on a portable field studio board (MYN Technique). The crabs are safely placed on a white studio board, photographed and released back into the natural environment (MYN Technique).

Blueberry hermit crab (Coenobita purpureus) with cap © Shawn Miller

Blueberry hermit crab (Coenobita purpureus) in plastic tube © Shawn Miller

Blueberry hermit crab (Coenobita purpureus) in plastic top cap © Shawn Miller

Blueberry hermit crab (Coenobita purpureus) in plastic © Shawn Miller

Blueberry hermit crabs (Coenobita purpureus) in plastic cap © Shawn Miller

Blueberry hermit crabs (Coenobita purpureus) in plastic top cap © Shawn Miller

Blueberry hermit crab- Ryukyu Islands © Shawn Miller

Blueberry hermit crab – Okuma, Okinawa © Shawn Miller

It’s important to photograph the hermit crabs in their natural habitat. I prefer to photograph them using a wide angle lens to achieve a unique perspective.

Meet zori -Wide angle macro © Shawn Miller

Hermit crab- Plastic pollution © Shawn Miller

Blueberry hermit crab, Wide angle macro © Shawn Miller

Meet scoop- Quaker © Shawn Miller

Meet shady – Worldwide trash problem

Hermit crab in a glass bottle- Yomitan, Okinawa.

Meet sparky- using a plastic cap from a cassette gas tank

I also photograph the hermit crabs using a dedicated macro lens. I mainly use the Canon 60 mm or 100 mm macro lens to concentrate on the subject. These crabs are fairly small and it’s important to have a lens that will focus close and deliver high quality sharpness.

Laundry detergent cap - Northern Okinawa

School project ” Crabs with beach trash homes ” My family and I collected trash on a local beach in Onna village. This is just a small portion of our beach trash findings. The kids did a great job creating a project with impact.

Otis Brunner found this hermit crab flattened on a beachside parking lot. As you can see the plastic doesn’t provide much protection.

Behind the scenes photograph ” Crabs with beach trash homes ” I have documented over sixty crabs with beach trash homes. If you would like to see more images check out my Flickr account.

Shawn Miller – Crabs with beach trash homes. Photographed by David Orr

June 10th, 2010 was my first experience seeing a hermit crab with a trash home.

My series ” Crabs with beach trash homes ” has been featured on World Wildlife Fund, Petapixel, Business Insider, National Geographic, Atlas Obscura, Global citizen, Plethorist, Daily Telegraph, Little things, 15minutenews, Roaring earth, Hyperdojo, News.com.au, Follow news, Neotorama, BoingBoing, Insider, Activist, Now100fm and varies Scientific websites.

Planet or Plastic June 2018 featured

Learn more about making a difference, TEDx talk | Adapting to or Changing Environment by Shawn M Miller

My Mission: To Protect and Preserve the Wildlife of the Ryukyu Islands for Future Generations. – If you would like to join my journey, check out my Patreon https://www.patreon.com/MakeTheSwitch4Nature

Your donations will help worldwide conservation initiatives as well as bring solutions to the worldwide pollution issues on our beautiful shorelines. Thank you for your support. Shawn M Miller.

Okinawa Nature Photography

沖縄自然写真 By Shawn Miller

Tag Archives: wide-angle macro photography by shawn m miller

Okinawa green tree frog – Ryukyu Islands

The Art of Wide-Angle Macro Photography by Shawn Miller

Crabs With Beach Trash Homes – Okinawa, Japan