Should I get off my high horse?

(DrTom sometimes has trouble getting off his high horse.)

Yesterday's post was a serious one, and dealt with the plight of eastern deciduous forests.  On rare occasions, I can not help but pontificate on some environmental issue that bothers me.  But when I do that, my wife goes berserk: "don't write that kind of post for your blog, get off your high horse, quit being a professor, and just be funny".  Well, I am trying to make the transition from an environmental educator to a Dave Barry-like humorist, but I feel I need to offer some meaty ideas or perspectives along the way.  This is a real challenge. 

My recent students know that I think the global environment is "going to hell in a handbasket", to use my favorite expression.  Furthermore, I don't think there is a thing we CAN do to change the outcome.  More precisely, I don't think there is a thing we WILL do to change the outcome.  So why talk about it if it is a foregone conclusion?  Answer: because there is a slim chance that I am wrong about this.  I sincerely hope that this generation, with their passion and commitment, can turn it all around.  In the meantime, we will return to our regularly scheduled program.

Fretting about our forests

(Check out Great Smoky Mountains National Park to find some old-growth forest.)

I am a purist when it comes to thinking about habitats for plants and animals. I want it to be the way it used to be. I wish I could go back and see North America 500 years ago. I wish I could live another 300 years to see what the forest around my house will become. But there are many factors that cause a natural habitat to deviate from what it could be, or to be different from what it once was. In most of the world, we cut down whatever was there originally and planted food crops, built houses, or just abandoned the land after we harvested the original inhabitants.

I guess we are pretty lucky in the northeastern U.S., from a naturalist’s perspective. After the massive clearing of those fantastic deciduous forests, humans attempted agriculture and most of it failed economically. That process has allowed that vast area to regrow itself over the past six or seven decades in a process known as secondary plant succession. For example, the hill on which I live was a cattle pasture until 1960, so I now own a forest that is about 50 years old. This old pasture is developing as a forest mostly on its own. The trees are getting bigger and older, they flower and produce seeds, new seedlings appear and grow, develop into saplings, and so on.

So why am I on edge all the time about the biological process I am witnessing every day around me? For starters, we have a major mammalian herbivore living here—white-tailed deer. Deer eat many of these tree species, as well as various non-woody plants, and deer, therefore, influence the species composition and relative abundance of tree species in the future forest. In my forest, they seem to prefer maple, oak, magnolia, and tuliptree, and avoid ash, cherry, aspen, juneberry, and hornbeam. Given that deer densities in this region may be about 10 times their original density, they can have a significant impact on what our future forests become. Realize that I love deer; after all, I conducted my Ph.D. dissertation on Columbian white-tailed deer in the Pacific Northwest. But they have become the bane of my existence as a conservation biologist in upstate New York.



Second, there seems to be a new tree disease in the region every time I ask an expert. Chestnut blight decimated American chestnuts decades ago, Dutch elm disease pummeled American elms, and beech bark disease infected American beech; more recently we have to worry about the woolly adelgid on hemlocks and the emerald ash borer in ash trees. All of these have the potential to significantly reduce populations of these tree species and every tree disease listed above has something else in common—none of them are native to North America. The pathogens all got to this country from Europe or Asia. Introduction of non-native or exotic organisms is a major problem for the conservation of biodiversity globally (one of the so-called “Four Horsemen of the Environmental Apocalypse”).

And finally, there is the “invasion” of non-native shrubs in the forests of the U.S. In my area, the offenders are usually Tartarian honeysuckle and multiflora rose. I have both of them in abundance in my woods, or at least I did until I declared war a few years ago. I have spent many hours walking and pulling, or walking and clipping, or even walking and spraying the tough ones with the herbicide “Roundup.” And with the elimination of every individual comes that feeling of satisfaction that I am putting the system on the right track. We may not know all the species that were in this habitat centuries ago, and we may not know the relative abundances of the various native species back then, but we know that Tartarian honeysuckle and multiflora rose were not part of it.

Now that I am retired, I continue to patrol for deer with my Labrador retriever, pull up exotic shrubs, and monitor my trees for any mysterious death. I’d have to live until 2309 to see if I made any difference at all. And most of the time, I feel I am just spitting in the ocean, because the forces of degradation are enormous and the majority of the public will never know the difference. It sure is getting lonely out there.

The time we save: Charcoal vs. gas for BBQs

(The way some people used to bbq, back in the day.)

I have always loved to grill food outside on our deck in the evening.  It is an age-old ritual that must go back to the time when humans first learned to build a fire several hundred millenia ago.  This discovery allowed early humans to cook meat, which would have made it more tender and safe from dangerous bacteria.  But we humans don't think much about that when we decide to light the grill and flop on a raw slab of beef, sliced zucchini, Vidalia onion, or a Portobello mushroom.  Most Americans want to flip a switch, light the gas, get the food on the grill, and be eating 5-10 minutes later.  I find this appalling, even disgusting.

Preparing a meal should be about as enjoyable as eating it, in my opinion.  After all, the enjoyment that comes with eating must be at least 50% due to the anticipation of the experience anyway.  So what is the rush?  Slow down and savor the anticipation.  For this reason, and I suppose because I reject the never-ending status race that comes with buying bigger and more expensive propane grills, I prefer to use charcoal.  It is a simple system and it is inexpensive.  For about $100, I buy a Weber charcoal grill that lasts me 10-15 years; the new gas grills can cost $5,000 or more.  When my grill finally rusts out, I buy another one.  Also, I am convinced the food tastes better when cooked with charcoal compared to gas.  But most importantly, it takes time for the charcoal to get to the correct level of burn before you cook any food with it--about 45 minutes.  It is during that time that I sip my wine, sit on the deck, talk to Management about my working conditions, and prepare the rest of the meal.  Using charcoal forces you to slow down and smell the roses along the way.

But what if I could see my neighbor's grill from my deck, and they could see my puny charcoal grill?  Maybe peer pressure would urge me to buy that Lynx 42 Inch Propane Gas Grill On Cart With 1 ProSear Burner And Rotisserie L42PSFR-1-LP for $7,168.  Maybe I would be intimidated by that professional apron he is wearing, obviously embroidered by his wife for him on Father's Day. Maybe I would go out and find a steak that is 3 inches thick, a whole inch thicker than his.  Maybe I would buy a fancy Belgian beer instead of drinking a Bud Light like him.  Maybe my wife will just go ahead and put on a tinier bikini than his wife is wearing now.  But I don't have to worry about any of that, because I can't see him.  Thank goodness for maple trees, and the charcoal that could be produced from them.

I suppose the debate about using charcoal vs. gas for barbequeing will continue until we have a new breakthrough.  When nuclear BBQs are commonplace, someone will write a post similar to this one comparing propane to plutonium for grilling food.  The plutonium grilling will only take 3.4 seconds, and the exposure to radiation will be minimal, about like getting a half dozen dental x-rays.  Certainly that would be worth the time you would save preparing dinner.  The time saved could then be used to check our smart phones for text messages from people we contact regularly but never talk to in person.  We could watch more television sitcoms about families that sit around the kitchen table and joke with one another.  Or, we could read more articles in Popular Mechanics magazine about how much more time we will be able to save in the future with labor-saving devices around the house.  It is as though we think we can put all that time we saved in a hermetically-sealed container, and then let it out to use it later, when it is more convenient.  Oh, how I wish.

Senescence sucks: Hiatal hernia (part 3)

(This man might have a hiatal hernia.  Or, he might just be in a burping contest with co-workers.)

My regular readers must think I am just making up this medical stuff lately.  DrTom could not possibly be going to doctors as much as he says, or else he wouldn't have time to write this blog.  He wouldn't have time to cut firewood.  He wouldn't have time to take photos of shrews.  He wouldn't have time to visit the little food market in Candor.  He wouldn't have time to host Jehovah's Witnesses in his garden, something he has really come to enjoy.  (I now have a sign next to my driveway that reads, "Jehovah's Witnesses: I'll be back soon.")  Who is trading stocks for DrTom when he is sitting in the doctor's office reading the May 1997 National Geographic about the poaching of rhinos in Zimbabwe?  Well, the observant will notice that this is the first post since Saturday.

So here is the latest.  I have had some difficulty with food sticking far down my esophagus on occasion over the past couple of years.  It is like part of my ham sandwich simply does not want to take a nosedive into a stomach full of concentrated acid.  Who can blame it?  But this alarmed my wife, so she had me mention it at my annual physical exam last month.  My family doc scheduled a "barium swallow" for me, which is a type of imaging used to see the esophagus.  When I got to the appointment at the Cayuga Medical Center, I realized that they had it all wrong.  The technicians that met me kept talking about me having trouble swallowing, and they were all set to do a test that looked at my throat. I thought it was weird that I was meeting with a speech pathologist.  The problem is not there, food lodges about a foot below that area of my body.  We had a nice chat about that part of my anatomy and they agreed that they were the wrong technicians.  I went home and my doc reordered the correct exam.  (By the way, I actually call my physician "doc".  I could be formal and call him DrLloyd, but he does not call me DrTom, so I compromise.  Should a physician call a Ph.D. "doc", or the other way around?  They could both refer to the other as "doc", but that would be one wacky sounding meeting in the exam room to anyone listening at the door.)

I returned to the medical center a few days later for the proper imaging.  Realize that each of these visits require that I come to town, 10 miles away.  So I usually combine errands and pick up grub, liquor, and loose women before or after my medical appointment.  At this visit, I actually ended up swallowing the highly viscous barium stuff that is needed for the imaging to work.  This material is so thick that you can not call it "drinking".  It was a light gray, very chalky substance and, of course, barium is one of the heavy metals, like arsenic or lead.  It was like swallowing liquid dry wall, if that was possible.  Certainly, one could use it to patch a small hole in wallboard.  The specialist takes the images, and tells me there appears to be no constriction of my esophagus.  He explains that with advancing age, peristalsis of the esophagus is not as robust, so food is more likely to linger there before clearing to the stomach. Ah, "advancing age"--have I mentioned that senescence sucks?  But there is one other thing, I have some "erosion" at the bottom of my esophagus due to stomach acid, which is caused by a hiatal hernia.  Just great.  Hernia and acid.  I hate everything about my body right now, and that iceberg is looking better and better.

So today, I had this follow-up appointment with my family doc.  When I arrived there, I was taken to the exam room by the nurse.  She took my vital signs and asked the reason for my visit today.  I honestly could not remember why the doc wanted to see me so soon after my annual physical, so I told her as far as I was concerned it was just a social visit.  I simply have not seen DrLloyd in a couple of weeks, and since I was chasing loose women nearby, I would just stop in and say hi.  I talk like this to amuse myself, but I am half afraid they might order a psych consult, and I don't need another medical appointment right now.

DrLloyd entered the room.  He wanted to talk to me about this hiatal hernia thingie.  Stomach acid has no place in the esophagus because it can cause that tube to become leathery, and that ain't good.  So, I either stay on this medicine he prescribed for me a couple of weeks ago for the rest of my life, or I have the hernia fixed.  So, in a week, I meet with the specialist that can fix the hernia---the same doc who does my colonoscopy every five years. I now have so many procedures and tests to do that I might be able to get some kind of bulk discount.  You know, like a colonoscopy and hiatal hernia repair for the price of one tonsillectomy.  Holy crap.  Don't even say that.  I still have my tonsils.

How many docs can I see in one calendar month?  I don't even want to know what is mathematically possible.  Realize that I am actually in pretty good shape.  Nothing seriously wrong, just lots of "rattles", to use a car analogy.  DrLloyd did tell me today that my last cholesterol readings were an improvement over the previous year, so he is not recommending meds to lower it.  I really do watch my fat intake.  But when I left the doc's office today, I decided I would splurge, so I bought a Snickers bar.  Kind of a celebration for the better cholesterol reading.  I just hope it doesn't get stuck in my esophagus.