Archive for the 'Zoology' Category

Camels of the Silk Road – Free Family Event! [Guest Post]

Secrets of the Silk Road opens in just two weeks! Join us opening weekend for a special, free family program: Camels of the Silk Road, from 12 – 4 pm. Camel connoisseur Doug Baum is bringing 6 camels to the Museum for a fascinating educational program. There will also be camel crafts for kids! Doug has given us a little preview of what’s to come on opening weekend in a guest post below.

Try applying for a bank loan, having to explain, “I’m a camel rancher.” Next time you’re on a flight and your seatmate makes small talk, asking about your job, answer with, “I guide camel treks in the Middle East.” Or, try convincing your father-in-law you’ll be able to take care of his daughter as you grow your camel business!

Now I’m tasked with introducing myself to you, the followers of the Houston Museum of Natural Science blog.

I’m Doug Baum, owner of Texas Camel Corps, a business (admittedly unconventional) dedicated to cultural, historical and environmental education using camels. My family will be bringing six of them to HMNS for an afternoon of programs on opening weekend of the Secrets of the Silk Road exhibition Saturday August 28, from noon to four o’clock. Programs will focus on the camel’s role in cultures along the historic paths as well as environmental adaptations the camel uses to survive in extreme climates.

This is really exciting for me, but it’s not the camels’ nor my first trip down the Silk Road. In 2002, when famed cellist Yo-Yo Ma helped organize the Smithsonian’s Annual Folklife Festival celebrating the Silk Road, I was honored to present programs on the National Mall for two weeks. Closer to home, our camels visit Texas schools, libraries, faith-based institutions and museums throughout the year.

Now I know those hardened camel men, as well as the camels working the oriental trade routes, had it tough: the varied conditions of plains, deserts and mountains are nothing to sneeze at, not to mention disease and banditry along the way. But as I plan my camels’ next journey down the Silk Road, the logistics I have to consider carry their own challenges. Hauling six camels from our farm in Central Texas to Houston may not be like going from Xi’an to the shores of the Mediterranean, but I bet my pre-trip checklist isn’t that different. Water, check. Foodstuff, check. Camels, OOPS! I should introduce my camels. They’re really the stars of the show.

Along for the ride will be Irenie, Gobi, Richard, Marianne, Ibrahim, and Xi’an (yes, really!). Gobi and Xi’an are appropriately-named Bactrian camels, the two humped variety native to Central Asia, while the other four are Arabians, the more common and numerous one-humped species found from North Africa through the Middle East and into India. I’ve decided to bring both species, as well as a variety of camel-related artifacts representative of the different societies living along the length of the Silk Road, to demonstrate just how widespread and varied the cultures along the routes were.

But back to the camels. Each has its own personality and my family and I will be happy to help you get to know them. You may hear stories from my 10-year old son, Pecos, about why Irenie is his favorite. Teenaged daughters Vanessa and Delany will likely tell you they prefer Ibrahim, our beautiful white camel, and that this is actually Ibrahim’s second trip to Houston. A few years ago, he traveled into an underground service entry, up steps, through corridors and onto a freight elevator before greeting travel convention goers outside the doors of a hotel ballroom!

Maybe those Silk Road camel men didn’t have it so tough after all.

Our family looks forward to meeting you when our humble caravan rolls into Houston. In the meantime, come visit us online, on Facebook, our blog, and our web site.

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Ghost Bird – soon showing at a museum near you!

Search for the Ivory-billed Woodpecker
Creative Commons License photo credit: judy_breck

As massive trees were unsustainably logged for the timber trade, the last stable Ivory-billed Woodpecker (Campephilus principalis) populations began declining during the 1930’s as their vital nest trees disappeared, as noted by Arthur Allen, James Tanner and George Kellogg, ‘Ivorybill’ scientists who actively studied the species beginning over 75 years ago. (You can listen to a recording of the bird taken in 1935 by Arthur Allen by clicking here.) With a couple of possible unconfirmed sightings in Cuba and the southeastern United States over the last couple of decades, there were many individuals who wanted desperately to believe this bird still existed.  Then a brief and controversial video clip was captured by David Luneau in 2004 in the Cache River Basin of Arkansas.  After a quiescent period of serious planning, the scientists, led by Cornell Lab of Ornithology Director John Fitzpatrick, announced in a press conference that the Ivory-billed Woodpecker has been rediscovered.  The events that followed that press conference are numerous and represent a fascinating ribbon weaving American history, culture, raging debate, and the true power of one word – hope.

Ghost Bird is a timely documentary that highlights the fascinating yet highly controversial issue revolving around the rediscovery of the Ivory-billed Woodpecker.  Following an official selection of film festivals in Toronto, San Francisco, New York City, London and Rome, Ghost Bird has been honored with the 2009 Golden Eagle and the Southern Soul of Independent Film Award.  Clearly, this special film is revered by audiences with varying interests, not strictly birdwatchers and Ornithologists.

It is with much enthusiasm that I announce this movie playing here at HMNS on Thursday, August 19 — the only scheduled viewing in east Texas and surrounding areas.  For more information about the film you can watch the trailer below. To learn more about the showing at HMNS click here (if it is sold out, check back because we will try to offer additional show times). 

Can’t see the video? Click here.

Here is what the critics are saying about Ghost Bird:

“Comic, mesmerizing and deeply poignant… reminiscent of the work of Errol Morris.” 
- Brian Johnson, Senior Entertainment Writer, Maclean’s

“Excellent, informative and balanced, while also being very entertaining.” 
- Dr. James Rising, Professor of Ecology and Evolutionary Biology,
University of Toronto and American Ornithologist’s Union Fellow

“Beautifully crafted, heartbreaking, ironic and infuriating… It’s a stunner.”
- Michael Fox, NPR San Francisco
 
“It’s a fascinating story, with all sorts of twists and turns… the most compelling aspect of the film is the message it carries about bird conservation and our essential role in stewarding the birds and habitats that are in our control.”             
                – Graham Chisholm, Executive Director, California Audubon

“With the Pixies piped in to the background of the trailer, you know this is going to be one memorable documentary.”
 - Dr. Dan Brooks, Curator of Vertebrate Zoology, Houston Museum of Natural Science

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A Rare Gull, an Innocent Query, and a Colossal Fraud

While the vast majority of my posts have dealt with adventures from the trenches (of fieldwork), I’ve recently been involved in a simple research project that ended up being quite interesting from the perspective of museum history.

Interns Tim McSweeny (L) and Raoel Sheik (R)
preparing study specimens

In prior blogs I’ve posted how we obtain some rather unusual specimens from Wildlife Rehabilitators.  One of our principle ‘Rehabbers’ is Dana Simon who has brought us a number of sea birds and raptors, among other goodies.  Today’s story began in the late Summer of 2007, when Dana was brought a ‘different’ looking gull that she was unable to identify to species.  If Dana’s charges perish, she is kind enough to save them for us in a large freezer until she has enough worth making a trip in for.  Now you crazy kids don’t try this at home, Dana runs a fully permitted and licensed facility.

Nearly a year after the gull was initially found dead of an unknown ilnness on Surfside, it was brought to us here at the museum.  It was prepared here as a study skin by one of my interns, Tim McSweeny.  Once we get several study skins together, ready to be catalogued into the collection, I will identify some of the more challenging individuals as part of a Curator’s duties.  This gull was rather difficult to identify, but after much comparison with other species, I was able to determine that it was a female Sabine’s Gull (Xema sabini) in non-breeding plumage.  It was definitely worth writing up as a published note, as there were few (if any) specimens of Sabine’s Gull from the Texas Coast.  Although sight records do exist, a museum voucher specimen provides irrefutable evidence of the species’ occurrence.

I then contacted Dr. Keith Arnold at Texas A&M University.  Keith was my Major Professor for my Ph.D. work over a decade ago, and we often collaborate on anything I publish involving Texas birds.  ‘Dr. A,’ as his prior students call him, is a walking encyclopedia of past and present records of rare birds in our beloved state.  Although there are 625 species accepted as regularly occurring in Texas, others such as Sabine’s Gull have been taken off the review list because the number of reports are so few and far between, with fewer than four reports per year over a ten year average.  Keith told me there had been one specimen prior to this one and it was housed in the Natural History Museum’s (NHM) collection in England.

Although the NHM proper is located in London, the approximately 750,000 bird specimens are housed in a huge multi-leveled building approximately an hour northwest of London in the quaint market town of Tring in Hertfordhsire.  I know this because I visited there nearly 15 years ago when collecting data for my dissertation from various museums around the globe.  At the time I visited Tring, I was pleased to meet the acquaintance of a kind gentleman by the name of Dr. Robert Prŷs-Jones.  Robert was kind enough to help me navigate through the hundreds of cabinets to find what I was after during my visit.  We hit it off just fine, so I was hoping he wouldn’t mind if I bugged him to gather some information about the Sabine’s Gull specimen in his care at the collection at Tring.

Well, I began to get a little nervous when I didn’t receive an immediate reply from Robert with the news.  I then received an enthusiastic and lengthy reply from him a couple of weeks later in early October 2008.  He did indeed remember me and explained the reason it took him a couple of weeks to reply is because although he had located the specimen, it proved a bit baffling and he had to do some research to figure it all out.

The HMNS specimen of Sabine’s Gull (Xema sabini)

Robert had been working with various colleagues such as Dr. Pam Rasmussen on a scandalous affair that involved fraud and the theft of specimens from NHM’s collection, among other places.  The culprit was one Col. Richard Meinertzhagen, who was a giant in the field of Ornithological expedition and discovery during his heyday in the early 1900’s.  At that time Meinertzhagen was well known as a respected Ornithologist with a large private collection of approximately 20,000 specimens.  His falsification of specimens and their respective tags that contained important data was first published on by Clancey (1984) although Knox (1993) was the first to publish a serious analysis of the scandal.  Later on, during research to write a guide to birds of southern Asia, Pam realized that Meinertzhagen’s fraud was actually much more extensive than originally discovered.  It was then that Pam collaborated with Robert to systematically describe the extent of his fraudulent ways, using the specimens they were able to uncover through careful research.

Apparently the case of the Sabine’s Gull at NHM was one of the more blatant examples of the Meinertzhagen scandal.  To quote part of Robert’s reply to me:
[N]ormally he covered his tracks slightly better by removing the original collector’s label and changing dates/localities; it is also interesting to have proof that he might change “collector” details in a case where he was not claiming to have collected the specimen himself.  This case is so blatant that either he didn’t realise the rarity of the species in Texas or he’s putting two fingers (one in the US?!) up to the ornithological community and saying “[I]f you cannot catch me on this, what can you do?”

So alas, Robert came to some important conclusions, that this gull in the NHM collection was one of the more blatant of many examples of fraud by the late Richard Meinertzhagen.  He kindly recommended we collaborate to publish the information, which now has been accomplished, and if you’re so inclined, you can read it here.

- DB, 1/14/10


Post-script: Kind thanks to Robert Prŷs-Jones, Pam Rasmussen and Keith Arnold for reading and providing comments on the text.

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Frog-sicles Anyone?

The recent (and wonderfully unexpected) freeze in Houston got me thinking, I’m inside with the heater on and I’m STILL cold, how on earth do animals that live outside do it? Well…they freeze!

The most extreme critter-sicles that I’ve found happen to be amphibians. Take the Common Wood Frog, for example. It has a trait known as freeze tolerance. What this means is just what you think; it has the ability to freeze solid, form ice within its body, and basically hibernate in a state of suspended animation. During this time it has no heart beat or measurable brain activity, and its metabolism slows to a glacial speed! As the frog freezes, ice forms in its body cavity, drawing out the cells’ water and its liver pumps out massive amounts of glucose, protecting its cells from solidifying and turning the liquid in its veins to syrup (think maple). I don’t know about you, but having 50 times as much sugar in my blood as a diabetic does NOT sound like the start of a good nap.

After a few months of froggy deep-freeze, the Common Wood Frog slowly thaws from the inside out - its heart begins to beat, its metabolism jump-starts. After what we would deem an arduous slumber, this little ranid hops away to find the closest mating pool he can; the breeding season for these guys is only a few nights, instead of the typical few months! Talk about baby-boomers.

You may be thinking, as one of my good friends often does when I exclaim scientific facts, “Erin, that’s all pretty neat-o, but why should I care about a frozen frog?” Let me fill you in.

Scientists right now are using nature’s model to try and extend the shelf life of donor organs. The staggering fact is that, of the thousands of people on a waiting list for new organs, only a small fraction will get them in time. Usually, an organ, once removed from a donor, must find a new home within 6 hours of excision-even on ice-or it is no longer viable. If, through the study of cryogenics, we could extend that time to say even 24 hours, just think of the number of people that could be saved who wouldn’t have made it because of the distance between donor and recipient! If a donor’s kidney, for example, could be frozen and stored without the typical associated damage, surgeons could dramatically increase the number of transplants they perform every year.

Now, whoever said that science wasn’t cool never heard of a frog-sicle. I can’t think of anything cooler.

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