Some thoughts on ecology, economics and evolution

The Future

My last blog post was about the Intergovernmental Panel on Climate Change, which won the Nobel Peace Prize in 2007.  The scientists shared that award with an individual who won an Oscar  in the same year.  That has to be some kind of record, inspiring peace and artistic acclaim in one effort. This same individual,… (read more)

Warming to the task

The 40 page summary published this month by the Intergovermental Panel on Climate Change makes some startling statements. The summary is the capstone of three major reports, 6 years of work and 30 years of experience in getting governments and scientists to clarify the likely outcomes of the increasing load of greenhouse gasses in our shared… (read more)

Sober Second Thought

Robert Baldwin and Louis Lafontaine led the Reform Party to power in 1848, bringing an end to the influence of appointed chambers of representatives  in Canada. The principle of elected, representative government has held sway ever since. And yet, there is one group of appointed individuals whose power, though slight, remains to be dealt with:… (read more)

How lopsided is evolution?

Back in May, I said that there was nothing extaordinary about the  maximum rate of branching that occurred early in the evolution of perching birds and that I would show my calculations in my next post.  I want to go to the trouble of backing up my statistics on this so that I can use the… (read more)

The McCanny Pattern

It began with a mislabelled graph.  My comment on that simple mistake led to my name being linked with those of the leading ecologists of my day and the designation of an entirely new pattern of seed dispersal and survival. I was a graduate student at the University of Western Ontario in 1984 and I… (read more)

The Meaning of Life

Today marks the first anniversary for this blog.  I would like to thank Miles Corak, who encouraged me to start.  Miles has an influential blog on economics.  My son Anthony arranged for the domain name and got me started in WordPress.  I would also like to thank you, my readers.  The Answer I have been… (read more)

Why are there so many perching birds?

The lopsided tendency of evolution to produce many species in one group while preserving just a few in other groups applies quite well to birds. I called this tendency Haldane’s Rule.  Is there something special about groups, like the perching (or Passerine) birds, that dominate our biodiversity?  Or is their diversity a natural outcome from a… (read more)

Fixing medicare

  Canadians are obsessed with health care.  Our publicly-funded system is one of a very few cultural differences (along with the length of our football fields) between ourselves and our great neighbours to the south. As such, medicare is a source of pride and identity.  Jeffrey Simpson has recently pointed out that this pride is… (read more)

Caring for the Boomers

Those born between 1910 and 1930 saw fit to raise a generation which could care for them in their old age.  Their children, the “Baby Boomers”, were not so far-sighted. Though the Earth has benefitted from the decrease in population growth in Western countries in the last 50 years and though we boomers have had less burdensome… (read more)

Predicting cannibalism

Ecosystems are messy places.  The number of possible relationships between species grows exponentially with every species that enters the system.  A fairly typical foodweb (see image below) of 70 species has 4900 possible predator-prey interactions.  Despite that, food webs are suprisingly predictable. For one thing, most foodwebs have only 10-30% of the possible feeding relationships.  This… (read more)