Posts Tagged ‘dune’

Last Hatchling?

Wednesday, October 8th, 2008

October 8th is late … very late in the season for diamondback terrapin hatchlings to emerge in the Great White North.  Yet, this morning as we walked along a dirt road between salt marsh on the south and rolling dunes to the north, we spotted a fresh set of hatchling tracks slaloming across the white sand.  The tracks began atop one dune, slipped down slope and then climbed up the next dune immediately adjacent to the roadway.  We began to follow the track with camera in hand.

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Following the Tracks of a Diamondback Terrapin Hatchling

The previous video retraces the tracks in 45 seconds but the hatchling would have taken more than 45 minutes to create them.  We found this perfect little terrapin resting under a clump of beach grass.  It sported an extremely sharp egg tooth and a slight yolk sac remnant.

Last 2008 Hatchling Sports Sharp Egg Tooth

It seemed a bit lethargic in the cool weather, but warmed a bit as it basked on the sun baked sand.  Still, after we moved it across the roadway to reduce the chance of an unfortunate accident with vehicular traffic, the terrapin held its position for several minutes before taking a deep breath and venturing into hiding within the nursery marsh.

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Release into the Wild Elicits a Deep Yawn

If this hatchling proves the last of the year, as is most likely, it certainly wrote a wonderful punctuation mark on the 2008 field season.

Tracking Terrapin Hatchlings

Friday, September 5th, 2008

Where do hatchlings go once they flee the nest? Using various methods of inference and observation, we have determined that some hatchlings race to the wrack line for safety, others scramble further into the salt marsh grasses and still others opt to remain upland for at least the first winter of their “hidden” years.

Terrapin Hatchling Track Heads Down Turtle Pass Dune

Let’s follow some clues, some tracks and some hatchlings to test these hypotheses.  The high dune of Turtle Pass seems the place to start as we discover a hatchling track descending from an emergence nest atop the dune and heading seaward.

Tracks Assume Colorful Tints as Sun Dances Behind Clouds

Down we go along the shifting slope that morphs in shape and color as shadows dance through the contours of the dune.

Close-Up with Tail Mark Bisecting Track

Let’s experience the descent as though we were a newborn hatchling on its first ski run down the slopes.

Follow Tracks to Hatchling Buried in Salt Marsh Wrack

So, our first experiment leads to the discovery of a hatchling burrowed into the landward edge of the wrack line, buried under last winter’s deposit of salt hay.

But our day isn’t over as we encounter another set of hatchlings scaling the bearberry covered banks off 5th Avenue and passing through an exquisite clump of sea lavender en route to safety.

Terrapin Hatchling Scrambles to Reach Salt Marsh

These little critters eschew the wrack line, which to them seems like a clear cut jungle of logs, and head directly into the thick matting of Spartina patens in the salt marsh system separating east and west sections of Lieutenant Island.