When I go outside this summer I’m impressed by the amount of greenery. I don’t have data, but it’s the greenest summer–the largest volume of foliage–I remember.
This makes sense. The limiting factors for photosynthesis, Biology 101 tells us, are temperature, light, and carbon dioxide. Translating photosynthesis into plant growth–that is, new biomass–also involves availability of [...]
For 33 years, from 1977 to early 2010, the Colony Farm Orchard was protected by a restrictive covenant. By virtue of the terms of the gift to Western Michigan University by the state of Michigan, this land was to be kept as open space for public use.
Now, as can be seen, WMU is telling us [...]
I sent the following to the Kalamazoo Gazette as a Letter to the Editor. The Gazette’s automated response told me that publication could take up to 2 months, which would be a month after the primary elections on August 3rd. So I’m posting it here, slightly modified.
To what I say in the letter, I would [...]
The January 2010 issue of The Auk published my review of the Atlas of Breeding Birds of Ontario, 2001-2005. It’s a fine book. It may be a little heavy for some readers–it weighs more than seven pounds.
The next (April) issue of The Auk published a Letter to the Editor that made reference to the review. [...]
Last week I finished my annual American columbo census. Every year in June, I check up on a marked population of American columbo (Frasera caroliniensis) plants in the oak woods near where my wife and I live in Oshtemo Township. Here in southwest Michigan, columbo was an oak savanna plant. I suspect that today this [...]
The League of Conservation Voters is a national environmental group that is best known for its Environmental Scorecard, where the league tallies the pro- and anti-environmental votes cast by our elected representatives. I’m glad the organization exists; I strongly support the idea that we should know how politicians vote on conservation issues and hold them [...]
A Yellow-headed Blackbird, a rare bird in Michigan, was seen near the end of April at Wolf Lake Fish Hatchery. The Fish Hatchery is west of Kalamazoo, a few miles over the Kalamazoo-Van Buren County line. The bird was first reported on 30 April. I drove out Sunday morning, 2 May, to try to get [...]
My last post several days ago repeated and updated some remarks I’d made on Earth Day 2004. It ended with the following comment about the Asylum Lake Preserve situation at that time:
Today’s Gazette (24 April 2004) had more good news. After a long process, a Declaration of Conservation Restrictions and Management Framework for the Asylum [...]
I made the following remarks at the 24 April 2004 Earth Day celebration at Kalamazoo Valley Community College and included them on the earlier version of my website as Conservation Letter 2 . Today, in boldface , I look at the same topics six years later.
When I agreed to give a talk at [...]
This is an updated version of a page from the first version of my website. It will be moved to the Pages section in a few days.
For classification purposes, we can separate land conservation by government and land conservation by private organizations. Two models of private land conservation exist–land trusts and land advocacy organizations. Land [...]
