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Frame To Frame – Bob and Jean

A Melanistic Eastern Garter Snake at Long Point in Ontario



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A Melanistic Eastern Garter Snake at Long Point in Ontario

melanistic eastern garter snake, crown marsh, long point, ontario

After several hours of bird watching at Long Point Bird Observatory in Ontario, Bob and I decided to check out another location, Crown Marsh, before heading off for dinner.  A lengthy walk there on Long Point Trail 6 had us coming across this substantial Melanistic Eastern Garter Snake.

crown marsh, long point, ontario

The Crown Marsh encompasses an area of 1,750 acres.  It is a significant and globally important wetland found along Erie Boulevard.  Bob and I set off from a small parking lot and followed the Crown Marsh Trail into the heart of the Marsh.

melanistic eastern garter snake, crown marsh, long point, ontario

It was when we returned to our vehicle about an hour later that we took notice of this Melanistic Eastern Garter Snake basking in the late afternoon sunshine.

jean photographing a melanistic eastern garter snake, crown marsh, long point, ontario

Someone had discarded a bale of straw there among the dogwood and willow thickets, and the snake found it a welcome place to curl up and rest.

garter snake, thicksons woods, whitby

Eastern Garter Snakes come in a wide range of colours ranging from green or brown with yellow stripes to even red and blue.  This is an Eastern Garter Snake that we photographed near Whitby , Ontario, one early spring day.

melanistic eastern garter snake, crown marsh, long point, ontario

A Melanistic Eastern Garter Snake is one with a recessive genetic trait that causes the development of the dark-coloured skin pigment melanin.  This colour morph occurs so frequently among Eastern Garter Snakes that it is almost considered “naturally occurring”.

melanistic eastern garter snake, crown marsh, long point, ontario

Melanistic Eastern Garter Snakes are usually a deep, dark black, especially if observed just after a snake has shed its skin.  Because snakes must absorb heat from their environment to maintain their body temperature, we could see how a Melanistic Garter Snake would benefit from being black.

jean photographing a melanistic eastern garter snake, crown marsh, long point, ontario

Perhaps that is why Melanistic Eastern Garter Snakes are more common in the northern reaches of their range.  Their black bodies are able to soak up the sunlight more effectively, which helps them withstand colder temperatures.

melanistic eastern garter snake, crown marsh, long point, ontario

When Bob and I first spotted this individual, we both thought it was a similarly-coloured Northern Water Snake.  We had help from experienced herpetologists who set us straight.

jean photographing a melanistic eastern garter snake, crown marsh, long point, ontario

As far as size of an Eastern Garter Snake, this Melanistic individual was close to the upper end of the size scale.  These snakes usually reach a length of 2 1/2 feet, although the record was set by one snake that reached almost 5 feet long.  I think the snake we saw was close to that length as well.

melanistic eastern garter snake, crown marsh, long point, ontario

Eastern Garter Snakes are harmless creatures although their saliva is mildly venomous so that they can stun prey before swallowing it whole.  These snakes are highly adaptable and so live in habitats all over North America.

melanistic eastern garter snake, crown marsh, long point, ontario

Eastern Garter Snakes rely heavily on amphibians for their food supply so most often are found in areas adjacent to some source of water.

melanistic eastern garter snake, crown marsh, long point, ontario

Eastern Garter Snakes hibernate in a hibernaculum between October and early April.  That is a communal den with many other snakes where they help to keep each other warm.   We were lucky to come across this Eastern Garter Snake that gave us such extraordinary views before it slithered off into the marsh.

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Frame To Frame – Bob and Jean

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