Happy Anniversary
Today is the 40th anniversary of the signing of
the Endangered Species Act by President Richard Nixon, in 1973. Perhaps more
than any other single piece of environmental legislation, this law has
generated controversy almost from its inception.
Last August, also 40 years ago, marked the anniversary of
the discovery of the snail darter in the Little Tennessee River, by Dr. David
Etnier, now emeritus professor of ecology and evolutionary biology at the
University of Tennessee. That event ultimately led to the first-ever test of
the Endangered Species Act before the Supreme Court of the United States in
1978. In that case, known as “Hill v TVA,” the court ruled that the Tennessee
Valley Authority (and by extension any government agency) was subject to the
terms of the Act. This decision halted construction on the Tellico Dam, to
prevent destruction of the darter’s critical habitat.
It is reasonable to ask how things have played out for the
snail darter, and the rest of America’s biodiversity in the intervening 40
years.
Snail darter, photo by Conservation Fisheries |
In the interest of full disclosure, I must mention that I
have been good friends with Dr. Etnier for all of that 40 year period, and our
acquaintance began even earlier, as he was the first biology professor whose
class I took in 1968. My friendship with others who have been involved in the
conservation of aquatic biodiversity in the Southeast goes back nearly as far.
I have served on the board of Conservation Fisheries since its inception in the
1990s. Conservation Fisheries is a nonprofit organization founded by two of Dr.
Etnier’s graduate students. It has accumulated an unsurpassed record of success
in the captive propagation of endangered native fishes for restocking wild
habitats. They have worked with over 25 listed species of fish. Much of this
work was made possible by funding obtained under the Endangered Species Act,
which requires that a recovery plan be developed for each and every listed
species.
As an environmental issue, biodiversity preservation has
been overshadowed by climate change in recent years. In one sense, this is
appropriate, because the impact of climate change will be felt by all species
on the planet. In another sense, however, it is unfortunate, because human
activity continues to place animals and plants in peril.
The rivers and streams of the southern Appalachian region
survive as treasure troves of biodiversity that is little known and vastly
underappreciated. Tennessee and Georgia, for example, each have more than 300
species of native freshwater fish, a level of diversity that rivals some
tropical habitats of similar size. The aquatic biodiversity of this region
mirrors the diversity of our forests, which shelter thousands of plants,
insects and fungi, many found nowhere else on the planet.
Today, therefore, let us take a moment to reflect on the
remarkable ecological bounty harbored by our region, and renew a commitment to
protect and preserve it for the benefit and enjoyment of future generations.
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