Amami Woodcock- The Birds of The Ryukyu Islands

Posted on April 29, 2019 by Admin11

The Amami woodcock (Scolopax mira) is considered a prefectural bird of Amami Island. They are a rare species mainly found on Amami and Tokuno islands. These ground dwelling birds are listed as vulnerable on the IUCN red list of threatened species.

Scientific name: Scolopax mira
Distribution: Amami, Tokuno and Northern Okinawa
Habitat: leaf littered forests
Diet: Beetles, crickets, moths, spiders, and worms
Average Size: 34cm – 36mm
Threats: Habitat loss and the introduced mongoose.

Amami woodcock (Scolopax mira) © Shawn Miller

The Amami woodcock is a master of camouflage. It crouches down low and limits its movements in the leaf litter. When predators approach the woodcock will fly away in most cases.

Amami woodcock (Scolopax mira) © Shawn Miller

In this case the female has chicks that she has to protect.

Amami woodcock (Scolopax mira) © Shawn Miller

Amami woodcock (Scolopax mira) © Shawn Miller

We managed to see one sub-adult, it quickly followed its mothers lead and fled the scene.

Amami woodcock (Scolopax mira) © Shawn Miller

The mongoose is the biggest threat to the wildlife of the Ryukyu Islands. It was introduced to the Ryukyu Islands in the1900’s In order to reduce the venomous habu populations. All the islands are still battling this never ending problem.

Mongoose ( Hepestes javanicus ) © Shawn Miller

All the photographs of the Amami woodcock were taken from the car through the back seat window. In the beginning, I had difficulty with the cameras auto-focus system. I adapted by mounting a Light&Motion GoBe light with a 500 search head to my tripod collar. This allowed the auto-focus system to be extremely responsive using the Canon EF100-400mm f/4.5-5.6L IS II USM.

Amami night adventures setup © Shawn Miller

People often ask me what is the purpose of conservation photography? Having the ability to affect some form of positive change in the environment and make a global difference with the photographs. Hopefully, the images will inspire people to care more about nature and make a positive difference in the environment.

Learn more about the Light&Motion GoBe Exploration light https://www.lightandmotion.com/choose-your-light/gobe

My Mission: To Document and Preserve the Wildlife of the Ryukyu Islands

This site is also designed to help people identify the beautiful animals of Okinawa, basically to serve as an online nature reference guide. If you would like to make a contribution to support my mission, please click on the donation link paypal.me/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.

Get Fa-Millerized with the Nature of the Ryukyu Islands – – – – SUBSCRIBE BELOW

Parasitic Isopods of the Ryukyu Islands

Posted on April 27, 2019 by Admin11

Scorpionfish, lionfish and stonefish all belong to the family Scorpaenidae. They all are well camouflaged and highly venomous. Their defensive spines can deliver a painful sting. It’s best to wear exposure protection and maintain good bouncy control to avoid getting envenomated by these ambush predators.

In the 1980’s Robert Bolland stumbled upon an interesting underwater find. He found a tiny undescribed isopod hitching a ride on a scorpionfish. 1984 the parasitic isopod Renocila bollandi from Okinawa was named after him.

Over the years I photographed a dozen of these orange Isopods (Renocilla bollandi)

I have always wondered,

What is the relationship between the two?
Is the relationship mutualism, commensalism, and parasitism?
Why does the isopod only prefer venomous fish (scorpionfish) as its host?
Why does the isopod always stay close to the eye?

See why they call it the bearded scorpionfish (Scorpaenopsis cirrhosa).

Learn more about the hazardous marine life of Okinawa.

Learn more about Robert Bolland and his research at The Okinawa Slug Site.

My Mission: To Document and Preserve the Wildlife of the Ryukyu Islands

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

#MakeTheSwitch4Nature

Get Fa-Millerized with the Nature of the Ryukyu Islands – – – – SUBSCRIBE BELOW

Earth Day 2019 Okinawa

Posted on April 21, 2019 by Admin11

Happy Earth Day 2019,

This post is not to make people sad, guilty or lose hope, It is to bring awareness to the ongoing trash problem in our oceans and on our shorelines.

As you can see our trash is a serious problem on our shorelines. Some organizations are doing great things making a difference but its not enough, We must all work together worldwide to attack this problem.

We all have the ability to make a difference by reducing the amount of single-use items we use daily. Change can be difficult but I challenge you to Make The Switch for Nature

Three items that can make a huge impact are:

Reusable thermos instead of single use
Reusable bag instead of a plastic bag
Metal utensils instead of single use plastic

I also recommend volunteering in a community beach cleanup at least once a year. Its important to see the amount of trash for yourself!

Hopefully this post will inspire you to make a positive change.

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

Mission

To Document and Preserve the Wildlife of the Ryukyu Islands

paypal.me/maketheswitch4nature

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

Get Fa-Millerized with the Nature of the Ryukyu Islands – – – – SUBSCRIBE BELOW

Ryukyuan Pygmy squids and hydroid-eating nudibranchs

Posted on April 14, 2019 by Admin11

In the summer of 2018, I documented some exciting animal behavior underwater. While searching for the blue-ringed octopus in a shallow reef cut, I stumbled upon the elusive pygmy squid (Idiosepius sp). I first photographed the Ryukyuan pygmy squid back in 2012 and was excited to see another one. This undescribed pygmy squid is only 10mm-14mm in size. It can be difficult to get an acceptable photograph of it free-swimming through the water.

Its amazing how fast squid can change color to blend into the sounding background. Look at that camouflage.

The pygmy squid has defined white nodules on the posterior end of the mantle used for attaching to seaweed and rocks.

I took a few photographs of the tiny squid and it eventually retreated into fireweed (Aglaophenia cupressina).

The fireweed looks like a harmless piece of seaweed but its actually a dangerous stinging hydroid. The fireweed delivers a painful sting causing redness, irritation and infection.

I returned to the exact location a few days later in search of the pygmy squid. I found the fireweed but it was much smaller, as if it was purposely cut down. These fireweed colonies have been in the same reef cut for over six years. What could have caused this devastation? Was it possible that a Scuba Instructor cut down the fireweed colonies for the safety of their students? I mention this because the hydroids are in a high-traffic swim-through area, and some days literally hundreds of divers swim through this reef cut.

My first thought was someone cut down the fireweed but I was wrong. It was actually a brightly colored nudibranch named Tenellia yamasui (Hamatani, 1993). The fireweed was infested with juvenile nudibranchs feeding on it.

You would think that the nudibranchs would be conservative and keep some food for the future. The sea slugs devoured the entire fireweed.

Ever wonder what this stinging hydroid can do to your skin? To learn more about the dangerous animals and treatments, check out my post on The Hazardous Marine Life of Okinawa.

Get Fa-Millerized with the Nature of the Ryukyu Islands – – – – SUBSCRIBE BELOW

Searching for Cephalopods by Shawn Miller

Posted on April 13, 2019 by Admin11

Lately, I have been getting out a lot more on night dives. The conditions have been great for Scuba diving and underwater macro photography. Diving at night is exciting because you never know what you will find. My last dive I stumbled upon a few new brightly colored nudibranchs and an undescribed pygmy cephalopod known as the pharaoh cuttlefish.

Could this pygmy cuttlefish be an undescribed species or just a clever juvenile broadband cuttlefish resembling the sand?

Scientific name: Sepia sp
Common Name: Pygmy or Pharaoh Cuttlefish
Found: Kin bay, Okinawa
Habitat: Sand bottom @ night
Depth: 35feet
Size: 17mm

More than likely this pygmy cuttlefish is Sepiella inermis. The pharaoh cuttlefish is absolutely stunning. I found this large specimen sand-dwelling during a night dive.

If you have never been night diving I highly encourage you to try it. If you want to learn more about Cephalopods of Okinawa, check out my post on the beautiful Blue-ringed octopus.

My Mission: To Document and Preserve the Wildlife of the Ryukyu Islands

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

#MakeTheSwitch4Nature

Get Fa-Millerized with the Nature of the Ryukyu Islands – – – – SUBSCRIBE BELOW

Okinawa Nature Photography

沖縄自然写真 By Shawn Miller

Monthly Archives: April 2019

Amami Woodcock- The Birds of The Ryukyu Islands

Parasitic Isopods of the Ryukyu Islands

Earth Day 2019 Okinawa

Ryukyuan Pygmy squids and hydroid-eating nudibranchs

Searching for Cephalopods by Shawn Miller