Posts Tagged ‘brumation’

Brumation termination

March 12, 2016

A few days of record-setting temperatures appear to have terminated brumation for at least one species of snake at Huntley Meadows Park: several Eastern Gartersnakes (Thamnophis sirtalis sirtalis) were spotted during a photowalk along the Hike-Bike Trail on 09 March 2016.

An Eastern Gartersnake (Thamnophis sirtalis sirtalis) spotted at Huntley Meadows Park, Fairfax County, Virginia USA.

I heard this one before I saw it. In my experience, snakes slithering through leaf litter make a sound that is clearly distinct from leaves rustling in the wind.

An Eastern Gartersnake (Thamnophis sirtalis sirtalis) spotted at Huntley Meadows Park, Fairfax County, Virginia USA.

When the snake saw me, it froze and remained motionless for several minutes — a survival strategy sometimes used by snakes when they feel threatened. I estimate the snake is 2.5 – 3.0 feet in length.

An Eastern Gartersnake (Thamnophis sirtalis sirtalis) spotted at Huntley Meadows Park, Fairfax County, Virginia USA.

Related Resource: Brumation break, by Walter Sanford.

Copyright © 2016 Walter Sanford. All rights reserved.

Advertisements

Brumation break

November 17, 2015

Do snakes hibernate? Technically, no. They brumate.

Brumation is an example of dormancy in reptiles that is similar to hibernation. It differs from hibernation in the metabolic processes involved. Source Credit: Dormancy, Wikipedia.

Reptiles usually begin brumation in late fall. Imagine our surprise when Michael Powell and I flushed three Eastern Gartersnakes (Thamnophis sirtalis sirtalis) as we walked through deep piles of leaf litter in the forest at Huntley Meadows Park on 11 November 2015!

Mike spotted the first snake; we could hardly see it, well-hidden under the leaves on the ground. The second snake was clearly visible, albeit briefly, when it fled for the safety of another leaf pile. The third snake (shown below) slithered out from undercover; when the snake saw us, it froze and remained motionless for several minutes — a survival strategy sometimes used by snakes when they feel threatened. I estimate the snake is 2.5 – 3.0 feet in length.

Eastern Gartersnakes can be differentiated from Common Ribbonsnakes (Thamnophis sauritus sauritus) by the presence of “dark vertical lines on the supralabial scales.” This key characteristic is shown clearly in the following photo.

The following photo shows Mike crouching near the same Eastern Gartersnake, shooting some up close and personal photographs using a 180mm macro lens.

This is the last photo I shot before the snake took off like a rocket, headed for the safety of a nearby ditch.

Copyright © 2015 Walter Sanford. All rights reserved.


%d bloggers like this: