Living on the edge (of the woods)


 

Population is growing – not just here in The Woodlands, or in Montgomery County, or in Texas, for that matter.

As that population grows, as new residential and commercial construction increases, the condition and size of natural habitat, where all varieties of species thrive, decreases. That may just be one of the facts of life of the 21st century.

Let’s talk about here in Montgomery County, and specifically in The Woodlands. Once, this area was a vast, contiguous tract of mostly pine forest. As development began, not only did the natural habitat area shrink, but it became fragmented.

While it may still resemble one, it no longer is a forest. It becomes, in effect, the edge of a forest, and is known to biologists, unsurprisingly, as the edge effect. Light, wind, temperature, moisture all change the dynamics of this ecosystem.

As we develop more “islands,” we change the requirements for native species of all types – birds, insects, mammals, plants, fungi and other flora and fauna.

Species which thrive deep in a forest are forced to abandon their habitat. The only species left are those which  thrive on the edges of a forest (or any native habitat). One might take a look at what’s left of the once magnificent Katy prairie to get an idea of what can happen to any habitat.

The species that are most affected by the loss of deep forest habitat are song birds. Decreasing the size of the forested area, and further fragmenting it with roads, reduces the living area of these species. A road cut through a forested area takes up a lot more room than just the thoroughfare. Increasing the edge of a forest also affects the reproductive abilities of many species.

Creating “islands” or forest edges without forests allows predators, of which there are many, easy access to many desirable species, including  the nests of song birds. These predators, which include racoons, cats (domestic and feral), rodents (not only rats – squirrels frequently raid nests for eggs or nestlings), skunks, snakes, oppossums, and predatory birds like the cowbird, who lays her eggs in the nest of a host species.

Is there a solution? Weighing the realistic needs of a human population against the retention of desirable species is a conundrum. Even in planned communities like The Woodlands, reduction of natural habitat for many species which once thrived here has been rampant.

End of rant.

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Published by

Bob Dailey

Bob Dailey is a garden writer, lecturer and gardener living in southeast Texas.

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