David Shiffman

Science and the Arab Awakening

March 4, 2011March 5, 2011 David Shiffman

Science

In the last few months, the Middle East and North Africa have seen some of the most dramatic political changes since the breakup of the Ottoman Empire. Tunisian President Zine el-Abidine Ben Ali, who had ruled with an iron fist for more than 20 years, was overthrown. Shortly after, Egyptian President Hosni Mubarak, who had also been a brutal dictator for decades, stepped down in the wake of massive public protests. As of this writing, similar protests are taking place in Yemen, Oman, Morocco, Iran, Djibouti, Jordan and Libya (where government retaliation to the protests has been particularly brutal). If you’re a CNN junkie like I am, you’ve read all about how these revolutions will affect human rights, international relations, oil prices, and the influence of terrorism in the region. There has been relatively little mainstream media focus on how science will be affected, however.

Biodiversity Wednesday: Three Gorges

March 2, 2011March 3, 2011 David Shiffman 3 Comments

Uncategorized

The Three Gorges region of Central China has one of the most striking landscapes on Earth. Steep cliffs covered in lush greenery rise right from the shores of the Yangtze (Yellow) river. Despite the harshness of the terrain, millions of people and numerous species of unique plants and animals call this region home.

Gorge1 — One of the three Gorges. Photo Credit: David Shiffman, 2007

The Yangtze is the third largest river in the world (after the Nile and the Amazon). The river and it’s shores are home to iconic Chinese species such as the Dawn Redwood tree, the tiger, the pangolin, the Chinese sturgeon and the Chinese river dolphin. All told, 570 species of vertebrates and almost 2,100 species of plants live in this region according to UNESCO. The area also has thousands of archaeological sites, including rare evidence of the Ba and Damaio peoples. This entire ecosystem is in big trouble because of one of the largest engineering projects of all time- the Three Gorges Dam.

State of the Field: Shark Conservation Policies

March 1, 2011March 1, 2011 David Shiffman 6 Comments

Conservation, Science

Shark populations around the world are crashing. Researchers have reported that many populations have decreased by 90% or more since the 1970’s. The leading causes for these precipitous declines are bycatch, which kills tens of millions of sharks each year, and the shark fin fishery, which kills as many as 73 million sharks each year. In this edition of State of the Field, I will explain what different countries are doing about this problem.

In many parts of the world, it is still legal to cut the fins off of a still-living shark and dump the rest of the animal overboard where it will bleed to death or drown. Other nations have a variety of management policies.

Dead Zambezi Shark tangled in shark nets — Credit: Fiona Ayerst, Marine Photobank

Stem cell research, science policy, and President Bush’s book

February 24, 2011February 21, 2011 David Shiffman

Science

At the recommendation of my parents, I’ve started reading “Decision Points”, President Bush’s autobiography. I’ve enjoyed it more than I expected to. It paints a picture of a well-intentioned guy doing what he thought was right in tough circumstances and occasionally getting it wrong. I find this view of President Bush more appealing than either of the common liberal caricatures of him (those being either an evil genius trying to destroy the world or a bumbling idiot completely out of his depth).

Each chapter focuses on an important decision he made during his two-term Presidency. One of these concerned his stem cell research policy and made a few references to his policy towards science as a whole. Since liberals considered his science policies so bad that incoming-President Obama references “restoring science to it’s rightful place” in his inauguration speech, I was curious to hear President Bush’s side of the story.

Turtle science at the Archie Carr National Wildlife refuge

February 23, 2011February 23, 2011 David Shiffman

Conservation, Science

The high density of sea turtles at the Archie Carr National Wildlife Refuge provides a wonderful opportunity for research, and a team from the University of Central Florida takes full advantage of it. They were kind enough to allow me to tag along.

Shark Science Monday: Nick Dulvy talks about determining shark’s conservation status

February 21, 2011 David Shiffman 2 Comments

Conservation, Science

In this week’s edition of Shark Science Monday, Nick Dulvy, co-chair of the IUCN Shark Specialist Group, discusses how researchers determine the conservation status of shark species. If you have a question for Nick, leave it below and I’ll make sure he sees it.

Science Fails in Pop Music Songs

February 17, 2011February 17, 2011 David Shiffman 17 Comments

Popular Culture, Science

I’ve found that I enjoy certain types of music more when I don’t listen to the words too closely. However, a mild addiction to karaoke and a lifelong inability to “just let it go” has made it impossible for me to avoid knowing the lyrics.

We’ve been known to criticize how science is portrayed in movies and television shows here on Southern Fried Science. Pop music is far from innocent when it comes to scientific misunderstandings, and it seems only fair that I criticize that genre as well. Here are some recent examples that have been driving me crazy.

State of the Field: Satellite tagging sharks

February 15, 2011 David Shiffman 2 Comments

Science

Modern shark researchers have access to a variety of high-tech tools. Acoustic tags with noises specific to each individual shark signal a receiver (or network of receivers) every time the shark passes nearby. Some tags have three-dimensional accelerometers, allowing researchers to study the small scale movement patterns and behaviors of sharks. Others, which are placed in the stomach, measure pH before, during, and after digestion. The most advanced technology on the market, however, is undoubtedly the satellite tag.

Shark Science Monday: Sonja Fordham explains international shark conservation and management policies

February 14, 2011February 14, 2011 David Shiffman

Conservation

In this week’s edition of Shark Science Monday, Shark Advocates International President Sonja Fordham explains international conservation and management policies. If you have a question for Sonja, please leave it as a comment and I’ll make sure it gets to her.

Biodiversity Wednesday: Ngorongoro Crater

February 9, 2011February 9, 2011 David Shiffman

Uncategorized

Located in the East African nation of Tanzania, Ngorongoro Crater (pronounced just like it’s spelled, 😉 ) is one of the coolest places I’ve ever had the privilege to visit. Technically a caldera, the remnants of a collapsed volcano, the floor of Ngorongoro provides over 100 square miles of habitat surrounded by steep walls to more than 25,000 animals.