Wolf cry

February 7, 2007

Wolf reintroduction to several places in the United States has been such a success that the federal government is planning to remove the wolf from the endangered species list. (Ralph Maughn’s Wildlife News blog covers this issue in detail.)

As if in a bad melodrama, some states are rubbing their hands in glee, planning hunts to more than decimate the wild populations, once the delisting is complete. In its excellent science section yesterday, the New York Times explained the issue, and featured wonderful photos of wolves.

For anyone interested, the issues with elk are also covered at Maughn’s blog, with an photo showing some of the serious mismanagement of elk that may be alleviated with introduction of wild wolves as predators.

Wolf in Yellowstone national Park, NPS photo

In my several trips through Yellowstone National Park dating back to the 1950s, I had never seen a wolf until our last foray in 2003. At the same time, there are significant changes in the Park’s natural environment plainly visible. To my delight some prime moose habitat has returned in recent years. Grassy areas in some stream and river bottoms are turning back into more mixed plants, with willows and bushes intruding. This makes it more difficult to see wildlife, sometimes.

But it’s a good effect, and it’s a result of the introduction of the wolves. Elk graze in those areas, and they eat the willows and other bushes, keeping the river bottoms more like prairies than forest. Wolves love to hunt elk in those places, however, and the presence of wolves has put the elk on alert. Elk spend less time grazing the brush back, and the brush grows, providing habitat for a number of other animals, habitat that had been in serious decline.

One might wonder if some people are serious about these issues at all.


Quote of the Day: Charles Darwin

January 22, 2007

April, or Valentine’s Day worthy? Young Charles Darwin, from University of South Carolina

Charles Darwin to Emma Darwin, April, 1858:

Moor Park

The weather is quite delicious. Yesterday, after writing to you, I strolled a little beyond the glade for an hour and a half, and enjoyed myself — the fresh yet dark green of the grand Scotch firs, the brown of the catkins of the old birches, with their white stems, and a fringe of distant green from the larches, made an excessively pretty view. At last I fell fast asleep on the grass, and awoke with a chorus of birds singing around me, and squirrels running up the trees, and some woodpeckers laughing, and it was as pleasant and rural a scene as ever I saw, and I did not care one penny how any of the beasts or birds had been formed.

Francis Darwin, The Life of Charles Darwin (Senate 1995), p. 184.


Evolution and dogs

January 22, 2007

No, this really isn’t off topic.

The Natural History Museum of Los Angeles County has a good website with good materials. On the way to find something else (just what I don’t remember) I found a discussion of the evolution of dogs, and artificial selection in dog breeding.

Dogs and evolution at Los Angeles County Museum of Natural HistoryHere are a few ways the site can be used:

Homeschoolers, you just got a puppy, and the kids are all about learning everything they can about dogs. Here’s a page to sneak in some serious biology on evolution and how it works. Your kids will be reminded of it every time they see a different dog.

Elementary school biology courses can be supplemented with information about how natural selection works to provide the wild dogs native to your area — coyotes for the western U.S., for example (which can lead to a wonderful discussion of how coyotes have spread to all 50 states from the west in just the past 30 years, and how and why that happened).

High school biology students can be directed to this site for supplemental information that I can all but guarantee is not in the textbook — about dogs, an animal that most students will know first-hand.

I had expected that there might be a good, on-line version of exhibits on La Brea Tarpit fossils, but it’s not there. There are a few links on archaeological information, however. The museum seems solid in early Latin American cultures, material that is probably quite useful for junior high and middle school history courses in California, Arizona, New Mexico and Texas, and probably Nevada, Utah and Colorado, too.

If you have a local museum with good on-line resources, please drop a line and let me know — edarrell(at)sbcglobal-dot-net.


Gerald Ford, National Park Ranger

January 1, 2007

Gerald Ford was a very likable guy.  Since his death last week, I have been impressed with the number of people who have stepped forward with different stories about how Ford was just a regular guy called to duty.

Researching the updating of the story about the sale of creationist books in the Grand Canyon, I stumbled into a press release from the National Park Service.  It turns out that Ford is the only president ever to have worked as a National Park Ranger (well, the National Park Service itself has only been around since 1901, so that lets out about half the presidents from even the possibility — though, of course, Yellowstone was established in 1862 1872).

In the summer of 1936 Ford worked in Yellowstone National Park.  He had duties that sound rather quaint and definitely antiquated today:  Ford was a guard on the bear feeding truck.  Bears have to fend for themselves in today’s National Parks.  No, it’s not due to budget cuts in bear food.  Bears do better as wild creatures, and so feeding was stopped to discourage them from becoming tame and dependent on humans.

Gerald Ford, ranger mensch.


Olla podrida

December 29, 2006

Olla podrida is a local, Spanish term for a Mulligan stew, for olio, etc.

Founding fathers and illegal immigrants — A new blog on the migration debate, cleverly titled Migration Debate, highlights a New York Times opposite-editorial page piece that details how many of our “founding fathers” took advantage of illegal immigration, or immigrated illegally themselves.  William Hogeland wrote the piece, whom some of you will recognize as the author of The Whiskey Rebellion:  George Washington, Alexander Hamilton and the Frontier Rebels who challenged America’s newfound sovereignty. (Scribner, 2006)

Google’s amazing powers:   Bad time to be speechless:  Over at 31fps, Google.com/maps magical powers are explained:  The author finds a store on Google maps, clicks a button, and Google first calls his phone, and then calls the store — go Google, and leave the dialing to Google.  Star Trek wasn’t this good.  Just be sure you’re over being speechless when the party at the other end answers.

Amazing cosmos:  Phil Plait at Bad Astronomy lists his top 10 images from outer space for 2006.  #1 is a doozy, but be sure you read the explanation Phil offers.

Fashionable extinction:  Microecos explains how fashion wiped out a beautiful, unique bird, the huia, in New Zealand, a century ago.   It’s a reminder of how stupid humans can be — a good exercise is in there somewhere for geography classes, or a general lecture on the effects of colonization.


The Christmas card I wish I had

December 23, 2006

Olduvai George is just wonderful; go see his card.

The tree is up — a new one to us, still not natural in hopes of preventing the family-wide sinusitis the physicians say is caused by living things on the real trees.  The wreaths are up outside (a bit late, but still before Christmas).  One batch of mulled cider down already; St. Olaf’s and King’s College and Colorado State Choirs on the CD player (Emmy Lou and Louis Armstrong coming up).

Gotta find the Santa hat to put on the bust of Einstein, though.

Christmas cards always vex.  It’s difficult to walk the line between the friends who border on fanatic Christian and take offense at humorous cards, the friends who border on radical atheist and take offense at religious themes, the friends whose international concerns virtually dictate cards from international children’s agencies that feed several villages in Africa or Bengla Desh.

A mammoth card walks the line nicely, I think.  I’ve urged George to publish them; if you think you might like one, go tell him.

Tip of the old scrub brush to P. Z. Myers and Pharyngula.