Swamp

Biospheres of the Southwest

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This is a photo of a photo of a Texas Horned Lizard in the arid Chihuahuan Desert scrubland, from a roadside plaque near Las Cruces, New Mexico. The actual habitat is within the White Sands Missile Range and is off limits to the public. This UNESCO recognized special biosphere, Jornada—meaning day’s journey without water—, is open to scientific researchers from USDA, USFWS and NMSU, with limited school trips to the Chihuahuan Desert Nature Park in the southernmost corner. For many decades, the Department of Agriculture has been studying the climate here, gathering useful data about the fragile desert ecosystem. The Fish and Wildlife Service mostly focuses on the Bighorn Sheep and other species in the adjacent San Andres Mountains. New Mexico State University organizes research efforts and assists student scientists. 

While you can’t visit the Jornada biosphere or disturb the wildlife, these scientific research zones are extremely important for understanding global climate change and the ecosystems that support unique species. But the southwest region has two internationally recognized biospheres that you can visit: Big Bend and Big Thicket. Big Bend, like Jornada, is part of the Chihuahua Desert, and it also includes a biodiverse riverine ecosystem. Big Thicket is one of the most biodiverse places in the US, where the bayous, leafy forests, pine forests, plains and sand hills intersect and provide habitat for thousands of species. While these areas provide enjoyable excursions for Americans, they are also important beyond our borders. Scientists from all over the world actively support protecting and studying these areas to ensure the survival of species globally.

Congaree National Park

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Congaree is one of my favorite parks, so I saved it for my last entry of the year. Once, every river in the southeast was filled with hardwood forests like this, supporting many species of birds, fish and wildlife, and keeping our air and water clean. Now, this may be the last great one left. Around late May, the fireflies blink in synch, so you’ll need to plan months ahead if you want a campsite then. The 2.5 mile boardwalk hike from the main Harry Hampton visitors center takes you past a few of the tall trees that fill the swamp: beech, bald cypress, water tupelos and loblolly pines. The latter are the largest, most massive pines in the eastern half of the US. Congaree may have been saved much more recently than some of the more famous parks in the west, but for biodiversity, it is exceptional.

Of course, being basically a swamp or flood plain forest in the middle of a giant watershed stretching from the Blue Ridge Mountains to the Atlantic, the best way to see the park is by paddling. I dragged out my trusty OruKayak and spent several glorious hours exploring Cedar Creek by myself. There were folks on tour at the boat launch, but once on the water, I didn’t see anyone. Longer trips can be arranged on the Congaree River. Several people asked about my kayak, including a couple that happened to be from my old hometown, and I explained that it is lightweight, a bit tippy, and fits easily in the trunk of my Tesla Model 3. (I know everyone is hating on Elon right now, but he made a good car, as long as you don’t use the autopilot).

Apologies for botching another photo, but I should point out that the knobby things sticking up from the bank on the left are the knees of the bald cypress. They say it’s a mystery why the tree has knees, but obviously, the knees help dry out the roots, preventing rot. Above them, you can see some dwarf palmetto illuminated by the sun, and further upstream, the creek was blocked by falling trees, which are becoming more frequent with climate-crisis fueled storms. I also heard a variety of birds, although most of them flew away as I approached. Definitely worth bringing a map & GPS, since there are many side routes and obstacles that may require changing plans on the water. Beautiful.

Jean Lafitte National Historical Park and Preserve

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This is a large, multi-purpose, multi-unit park. On a previous visit I visited one of the Acadian (Cajun) cultural centers and the 1815 Chalmette Battlefield (read the pirate Lafitte’s story here), so this time I figured I should see the swamp at the Barataria Preserve. I didn’t see any alligators, but the ranger said they were probably under the boardwalk. He also said I might find one if I went on a more remote trail, explaining logically that no tourists had returned from that section today.

Folks around here are under a lot fewer illusions about the Climate Crisis than other places, out of direct experiences. The signs were more blunt than in other parks, explaining that the beautiful ecosystem above is being killed by rising oceans. If we had time to adapt, then we could learn techniques for dealing with storm surge, flooding, etc. But it doesn’t seem like enough people care.