
The common garter snake is a fascinating species that thrives in a variety of habitats. They can be found in wetlands, grasslands, and even urban areas.
One of the key habitats of the common garter snake is near water sources, such as ponds, lakes, and slow-moving streams. They are excellent swimmers and often bask in the sun on rocks or logs along the water's edge.
Their adaptability to different environments is a testament to their resilience and ability to thrive in a wide range of ecosystems.
Garter Snake Habitat
Garter snakes have specific habitat requirements that are crucial for their survival. A garter snake's natural habitat can be found under large rocks or structures, often along the perimeter of buildings, under stepping stones, or in rock fences.
In the wild, garter snakes are known to give birth to live young, unlike other types of snakes. Their diet is wide-ranging and includes snails, slugs, crickets, and other insects, with larger garter snakes even eating birds, small mammals, and frogs.
On a similar theme: Checkered Garter Snake
Garter snakes typically hibernate from late October until early April in natural borrows or holes and under rocks. This behavior is essential for their survival, especially during the winter months.
To replicate a garter snake's natural habitat, you'll need an appropriately sized habitat, such as a 40-gallon breeder tank for one adult or a 55-gallon tank for a pair. This will provide your snake with the space it needs to thrive.
Some essential items to include in your garter snake's habitat are a water dish, hideaway place, climbing decor, plants, and heat lights and fixtures. Don't forget to include a UV light emitter, under-tank heater, thermostat, thermometers, and humidity gauge to maintain a healthy environment.
Here are some common terrestrial biomes where garter snakes can be found:
Their populations are moving westward, traveling along irrigation canals, which is a fascinating aspect of garter snake behavior.
Ecology and Life History
Common garter snakes are almost always found near water in Washington, including wetlands, bogs, ponds, lakes, springs, creeks, and rivers.
They're good swimmers and can hunt both on and below the water surface. Juvenile common garter snakes have been observed hunting newly metamorphosing pacific treefrogs in shallow, seasonal, water bodies.
In the spring and fall, snakes may be found away from water as they move to and from terrestrial overwintering sites.
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Geographic Range
The common gartersnake has the greatest geographical distribution of any gartersnake, occurring in all Washington Ecoregions.
This snake can be found in a wide range of habitats, from the Pacific Coast to the eastern Washington ecoregions. T.s. concinnus occurs in the Pacific Coast and southern Puget Trough ecoregions, while T. s. fitchi occurs in eastern Washington ecoregions.
The checkered garter snake, on the other hand, is commonly found in the United States, Mexico, and some parts of Central America. They have been spotted in southwest California, southwestern Arizona, and southern New Mexico.
In Mexico, checkered garter snakes have been found as disjunct populations by the Rio Grande River, Veracruz, Juchitan de Zaragoza, Tabasco, and central Yucatan Peninsula.
Checkered garter snakes have also been found in Central America, specifically in Tegucigalpa, Honduras; Lake Nicaragua and Managua, Nicaragua; northeast Costa Rica; El Estro, Guatemala; and Orange Walk, Belize.
They can thrive in a variety of elevations, ranging from sea level to 2,200 meters (7,200 feet) above sea level.
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Ecology and Life History
Common garter snakes are almost always found near water, particularly in wetlands, bogs, ponds, lakes, springs, creeks, and rivers. They are good swimmers and can hunt both on and below the water surface.
In the spring and fall, snakes may be found away from water as they move to and from terrestrial overwintering sites. This is a common behavior for many snake species.
Garter snakes defend themselves by releasing a foul-smelling mixture from their cloaca and musk glands, which they then smear over themselves and their attacker. Some snakes will also regurgitate the contents of their stomach and bite.
The amount of toxin in a garter snake's liver can vary depending on the number of rough-skinned newts they've eaten. In many cases, this toxin is enough to severely incapacitate or kill avian predators.
Activity starts in March and continues into early November at low elevations. Snakes may remain in the vicinity of the overwintering site for two or more weeks until mating is complete and weather conditions are appropriate for dispersal.
Males emerge before females and spend time on the surface near the overwintering sites, where they'll attempt to mate with a female and form a "mating ball". This behavior is a common sight in many snake species.
After mating, snakes disperse to summer foraging areas, where female garter snakes often cluster in open grassy areas. This behavior may be related to thermoregulation and gestation.
The young are born in late summer and early fall, depending on location. In the lowland Puget Sound area, neonates start to appear in late August and early September.
Conservation
The common garter snake's conservation status is "secure" based on current records, but it's not entirely risk-free. Overhunting, collecting, and destroying overwintering sites can lead to local declines.
Road mortality is a significant threat in areas where snakes cross roads to access overwintering or foraging habitat. This is a common issue I've noticed in areas with high snake activity.
Snake Fungal Disease (SFD) is a serious concern for garter snakes, caused by the fungus Ophidiomyces ophiodiicola. Fortunately, this fungus hasn't been found in Washington yet.
There have been reports of a fungal disease in garter snakes in Washington that appears to be closely related to SFD. It's essential to stay informed about this issue and take steps to help prevent its spread.
The Washington Herp Atlas is a valuable resource for learning more about garter snake conservation and habitat. This atlas is a collaborative effort of several organizations, including the Washington Natural Heritage Program and the Washington Department of Fish and Wildlife.
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