Sunday, November 22, 2009

The dispersal of human offspring

(Human offspring disperse for the same reasons as these dandelion seeds, but the effects of dispersal are quite different.)

It is normal in birds and mammals for young to disperse from their birth area.  There are a variety of biological explanations as to why this is adaptive.  A common reason given is that dispersal reduces the chances of offspring mating with their parents (or competing with them for resources like food), which would result in a higher degree of inbreeding and a higher probability of recessive, deleterious genes manifesting themselves in the offspring of such a mating between close relatives.  In birds, females tend to disperse farther than males from their natal area, and in mammals, males tend to disperse farther than females.  Again, if male and female siblings disperse different distances from where they were born, they are less likely to encounter each other when they reach reproductive age and, therefore, siblings are less likely to mate with each other.  So, while birds and mammals have different sex-specific dispersal patterns, the effect is the same.

We are all familiar with the bad jokes told about human inbreeding (=incest) in communities where everyone stays near home, and there is little movement of new humans into this isolated community.  This is probably an extreme case for humans.  I have to figure that for most of human history (3-4 million years), young males probably dispersed to nearby villages, probably no more than miles or tens of miles away.  After all, they had to walk.  Once they got there and were accepted, they found young females to mate, settled down in their new digs, and had babies.  Young female humans probably stayed near home more often, although the details of all this varied with cultures around the world.  In some cultures, females are simply kidnapped from nearby villages and brought to the male's home.  Important as well is that in this ancestral system everyone knew everyone else within the home community, and they probably knew almost everyone in all the neighboring communities. 

But in recent times, meaning decades or a few centuries, this pattern of relatively short dispersal distance and everyone knowing everyone else changed dramatically.  Many young people still remain in close proximity to their parents and to where they were born; they retain close friendships with many of their peers from high school.  But many others disperse hundreds or thousands of miles from their family, their birthplace, their homeland.  This can be a somewhat painful experience for those of us who enjoy being with our adult children on a regular basis.

This diaspora-like phenomenon has consequences for society as well, I believe.  Human behavior seems to be influenced and tempered mostly by peer pressure.  We tend to be on our best behavior when we are being watched by people who know us and who know our family.  Our family, in turn, puts pressure on us to behave in a socially-acceptable manner.  When humans move to a community where literally no one knows them, human behavior has a tendency to change.  I am not familiar with studies that document this, but I am betting they exist.  In other words, when you are not directly accountable to a social system in which your status is known and familiar to others, I predict that, on average, humans will be somewhat more likely to engage in immoral or illegal behavior.  For this pattern to emerge in the data, we would need to examine a sample of thousands of individuals who dispersed and compare their behavior to thousands of similar individuals who did not disperse.  If entire extended families dispersed together, I think my prediction would be weaker.

Thus, there are good biological reasons why human offspring might disperse from their natal area, but this dispersal may also have effects, or unintended consequences, in societies where it is common.  I love playing these mind games with myself to see where it leads me.  Having just helped one of my sons disperse even further away from home than he already was has caused me to focus on this topic again.  (In the case of my son's recent move, I am more concerned about what his new community will do to him than what he will do to it.  This must be a common parental reaction.)  I was always fascinated with dispersal in the mammals and birds I studied, but there is nothing quite like thinking about human behavior to get the juices flowing.  Of course, human dispersal is another one of those book-length issues, but maybe this little essay will start you thinking about the movement of people in a new and creative way.

Tuesday, November 17, 2009

"Don't date a stripper from Vegas!"

(Punk's Place in Candor, NY will not have the same appeal after my son works in this Las Vegas nightclub.)

"Don't carry your wallet in your back pocket", is a useful piece of advice when walking around the streets of Las Vegas.  I have known that one for a long time, although I am a bit black and blue having my wallet bouncing around in my underwear.  Besides, I went to use the bathroom in the Venetian casino last night and the darn thing flipped into the urinal.  Thank goodness I wasn't at a Sahara urinal.  There must be a better place to store my money and credit cards.

My son and I have been in Vegas for five days and we have been given tons of advice on how to gamble here, where to find an apartment, what parts of the city not to live in, where to eat, and which shows to see.  It seems that everyone is an expert and we are novices here, so we are all ears.  Yesterday, a real estate broker told my son that whatever you do, don't date a Vegas stripper.  This advice was amended last night when a friend of my son's added cocktail waitress to the forbidden list.  (I actually dated a majorette from the marching band back in the day, but that is just between us.) The fact that we even have to have this conversation will put my wife on edge as we observe our "baby" sidle into Vegas life.  I guess that is why she sent me to help with this transition and she stayed at home.  So, I interviewed six strippers and three cocktail waitresses last night and I agreed with his real estate broker that Ryan should not date women who work in those categories.  I want to be thorough.

On the other hand, there may be some hidden (I use this term very loosely) advantages to taking up with women of this sort.  I would guess that they are somewhat used to being chilly, given their normal working attire.  Therefore, you could probably turn down the heat in the winter and save on the fuel bill.  I doubt they are ever pick-pocketed on the street, cause they have so many interesting places to hide paper money.  No thief would ever think to look there.  Financially speaking, it might not be so bad.  A good stripper or cocktail waitress at one of the high-end places in Vegas makes more money per year than a university professor.  Maybe my son wouldn't have to work at all. 

Thinking creatively, maybe I should stay out here and become a male stripper so I could return home with some loot.  Is there a market for a 63-year old, white-haired male stripper wearing only binoculars?  There are certainly plenty of elderly women wearing blue jogging suits who might want a break from those slot machines of an evening.  I'll check the classifieds today. 

P.S.  Don't worry Robin.  Either I will be home soon, broke as usual, or I will arrive home a few weeks late, with money hiding in places where thieves never go.

Tuesday, November 10, 2009

In Denver, and I’m homesick

(I'm confused.  I flew to Vegas, but I might be in Paris.)

For the past week, I have been in Denver, Colorado visiting our sons. Denver is large and growing rapidly, as is the entire Front Range of Colorado from north to south. Driving on the highways is reminiscent of driving in southern California. The area is full of young people who immigrated here from Ohio, Illinois, New York, and other places where life has ceased to be exciting enough. They come here for skiing, snowboarding, mountain biking, hiking, and camping in the Rocky Mountains nearby, and when in Denver there is plenty to do. The city boasts professional teams in baseball, basketball, football, and ice hockey, plenty of parks, bike and jogging paths, restaurants and bars of every stripe, interesting museums of art and history, and a good zoo. But I’m bored stiff. What the heck is my problem?

I’m bored because my primary activity in life, aside from blogging and trading stocks, is learning about, and living in, the woodland around my house. In short, I miss my forest in upstate New York and the “backyard ecology” that I practice there. Normally, an ecologist loves to travel to new places, because there are new habitats to explore, new birds to observe, new trees to appreciate. But in the city of Denver, that is not very satisfying. Oh, there are trees everywhere, but almost none of them should be here. Denver was built on the short-grass prairie of central Colorado—the native vegetation was only a few inches tall. Trees would have been limited to the banks of streams and rivers, and they would be cottonwoods and willows. The trees in the city now are mostly native to some other region of the U.S. or to another country: ash, Russian olive, Chinese elm, and Tree of Heaven, that native of China that I absolutely detest outside of its homeland. An irony is that we drove around a neighborhood yesterday with street names like Ash, Birch, and Cherry. Rub it in my face!

My issue here is that there is vegetation everywhere, but it does not constitute a “habitat”. Most homes have attractive green lawns, scattered trees planted in the yard and along the sides of the house, and a variety of flowering plants in gardens. All of this takes nearly daily watering, of course. But that is another complaint I have, for another blog. Nothing I criticize about Denver is any different than what I would say about almost any city in the world. We reconstruct a poor facsimile of the natural world that we took away when we built the city in the first place. For most, this is apparently just fine. In my case, I can’t wait until I go to the airport. But first, I have to spend time in Las Vegas, the Mecca of Facsimiles---Vegas even has the Eiffel Tower, which I always thought was in Paris.

Monday, November 9, 2009

The 60s, and other memories of the way it used to be

(They were radicals, but they were correct.)

Another year, another birthday.  What the heck?  I'm now 63 years old, but I don't feel a day over 62 1/2.  I attribute this amazing youthfulness to eating properly and exercise.  And, of course, a scotch and a cigar a day probably contribute as well.  I will go so far as to say that if you smoked one cigar a day and drank one scotch per day, you would also not feel a day over 62 1/2, even if you are 30 years old.  That combination of alcohol and nicotine has amazing restorative properties, and I am living proof of that.

Having lived this long, I have witnessed some interesting changes in practices and attitudes in many aspects of American life.  For example, I started school at age 5 in the first grade.  We lived in a somewhat rural area about a mile from the school.  To get to school, we walked.  But to do so, we walked along a country road, crossed a busy highway, and a set of railroad tracks.  Years later, the fathers of two of my friends were killed driving across those same tracks, so it was no joke.  After a couple of weeks of my mother walking with me, I was free to make the walk alone both to and from school.  There were some other kids making the same walk, but can you imagine parents letting any kid even twice that age do this today? 

I loved baseball when I was 9-12 years old, so I wanted to play on the local Little League team.  I tried out for 3 years and was cut from the team each year.  It was done like this.  The day finally came to announce who made the team.  The coach read the list and those of us who did not make the team, turned our backs and walked home while the coach started passing out the team shirts and caps to those who made it.  I distinctly remember the cheers of joy from those guys who had made the team, as they tried on their new gear.  I was devastated each time.  Our parents were not there.  We always faced these events on our own.  However, after the third turn down, one man started an additional team with those of us who did not make the Apaches team.  Our Sioux team then actually beat the Apaches during the regular season, which was one of the sweetest days of my life.  In those days, we always knew that success was not guaranteed, and that you had to prepare extremely well in a competitive world.

When I was in junior high school, I got paddled by the teacher in front of the class at least once each year for some infraction of some rule.  Usually this involved talking in class when we were not supposed to be doing that.  I was not alone.  Today, that kind of corporal punishment would be definite grounds for a law suit.

Then, there was the decade of the 60s, which was amazing in so many ways.  When we were first married, my wife worked full-time as a nurse and I was a student.  She could not get a credit card issued in her name in those days; it had to be issued in the husband's name.  Crazy, since she was making the money and I wasn't. Of course, now, we don't open the mailbox without there being an offer for her to accept a new card.

I mostly remember worrying about the military draft during the 60s.  It was all any male thought about.  Would I be called?  Could I escape it somehow?  If we stayed in university, we were safe until we graduated.  Maybe the Vietnam War would be over by then.  I remember a couple of guys when I was attending Ohio State whose grade point average (gpa) was right on the cusp of flunking out of school.  (In those days, universities actually flunked students out and they went home.  Seems much less common today.)  I distinctly remember these particular guys taking an exam in a course we had together.  If they got a D on the exam, their gpa would dip below the minimum needed and they would flunk out.  In the mid to late 1960s, that would almost certainly mean you would be drafted into the army within months, probably sent to Vietnam, and possibly killed or injured.  Talk about pressure when taking a math or biology final exam.

I was lucky.  I graduated Ohio State, got drafted, and ended up in Korea.  All in all, that was a valuable and interesting experience, and not dangerous.  In Korea, I was in military intelligence and lived undercover as a civilian, but I mostly spent my time playing ping pong, bridge, and third base on the softball team.  I had been sent to language school for a solid year before deploying to Korea, so I was nearly fluent in the language at that time.  My wife and young daughter joined me there, we lived with a Korean family in the village, and we learned a lot.  The army did not want my wife to come, but there was no law against a U.S. citizen going to Korea, and my wife would not take "no" for an answer.  This was pretty much SOP for my wife during our military years.

So times have changed for the better in some ways, and probably not for the better in other ways.  I often wonder, and even predict, if the last half of the 20th century may have been as good as it ever was in human history and perhaps as good as it will ever be, all things considered.  In time, I will build this argument and present it for your critical analysis.  But several centuries will have to pass before this idea can be tested fully, so you will have to let me know how it comes out.  Just send me a text message.