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- From: len@math.nwu.edu (Len Evens)
- Newsgroups: sci.environment
- Subject: Re: Wolves vs. Caribou
- Message-ID: <1992Nov22.175859.20802@news.acns.nwu.edu>
- Date: 22 Nov 92 17:58:59 GMT
- Article-I.D.: news.1992Nov22.175859.20802
- References: <JMC.92Nov21101132@SAIL.Stanford.EDU>
- Sender: usenet@news.acns.nwu.edu (Usenet on news.acns)
- Organization: Dept of Math, Northwestern Univ
- Lines: 45
- Nntp-Posting-Host: schur.math.nwu.edu
-
- In article <JMC.92Nov21101132@SAIL.Stanford.EDU>, jmc@SAIL.Stanford.EDU (John McCarthy) writes:
- > Someone wrote that the Alaskan decision to shoot wolves is playing God.
- > One can reply, "No, it's just gardening on a moderately large scale."
- > Is there a difference?
- >
- > So far as I have seen of the discussion, it is about on the level of
- > a Bambi movie, and I'm not sure that much more is involved than a
- > clash of sentimentalities.
- >
- > The idea that keeping down the wolves would cause herds of caribou on
- > the scale of African ungulate herds seems unlikely on the basis of
- > climate, but maybe the advocates have done their homework.
- >
- > On the other hand, maybe it's the people from a pioneer culture
- > annoying the sentimental environmentalists for the sheer pleasure of
- > it. In that case, I'm for it. They certainly deserve some revenge
- > for all the meddling.
- >
- > --
- > John McCarthy, Computer Science Department, Stanford, CA 94305
- > *
- > He who refuses to do arithmetic is doomed to talk nonsense.
- >
-
- --
- John McCarthy raises several issues but presents no evidence whatsoever
- for his suggestions beyond how he personally responds to the discussion.
-
- Having read the article in the New York Times through my particular colored
- glasses, I was appalled by the action of the Alaskan State agency
- involved. Let me explain what I found relevant. I am hardly a
- population biologist, but for several years I have taught simple
- differential equation models concerning prey predator relations.
- What I learned is that the dynamics are quite complicated
- and the effect of a perturbation (as decreasing the population
- of predators) is not easily predictable. The state agency's supporters
- were not quoted as presenting any evidence from population biologists
- supporting their position, but biologists were quoted on the other
- side making an argument I was ready to accept. In this case,
- I must admit a bias, but it was based on my professional training
- rather than any sentimentality about Bambi. I suspect that many of
- those posting responses on this issue reacted the way I did.
-
- Leonard Evens len@math.nwu.edu 708-491-5537
- Dept. of Mathematics, Northwestern Univ., Evanston, IL 60208
-