Sceloporus graciosus
The sagebrush lizard (Sceloporus graciosus) is a common lizard found in the western United States, typically inhabiting shrublands and woodlands at mid to high altitudes. It is distinguished by its keeled and spiny scales, often exhibiting gray or tan coloration with lighter stripes along its back and sides. Males are recognizable by their blue abdominal patches, which can develop into orange during the breeding season.
Key Facts
- ›Found in MID to high altitudes across the western United States.
- ›Possesses keeled and spiny dorsal scales, typically gray or tan with lighter stripes.
- ›Males have distinctive blue patches on their abdomen and throat.
- ›Inhabits shrublands, coniferous forests, and piñon-juniper woodlands.
- ›Diet consists primarily of insects and arachnids.
- ›Reproduction involves laying clutches of 2-10 eggs, which hatch in 45-75 days.
Sagebrush Swift
Western United States, Nevada, Oregon, Idaho, Colorado, Montana, Washington, New Mexico, Utah, Wyoming, North Dakota, South Dakota, Nebraska, Arizona, California, Texas
Shrublands, Coniferous Forests, PiñOn-Juniper Woodlands, Sandy Habitats, Areas With Brush
- 4.7–8.9 cm Snout-To-Vent Length When Fully Grown
- Hatchlings About 25 mm Svl
- Keeled and Spiny Dorsal Scales
- Gray, Brown, Or Olive Coloration
- Hints of Blue Or Green On the Dorsal Surface During the Light Phase
- Irregular Banding Patterns On Body and Tail
- Black Bar On the Shoulder
- Light Lateral and Dorsolateral Lines On Both Sides
- Small, Granular Scales On the Rear Portion of the Thigh
- Rust-Colored Armpit and Lateral Body Surface
- Females Have White Or Yellow Bellies
- Males Have Distinctive Blue Patches On the Abdomen and Throat
- Males Have Enlarged Postanal Scales and Two Areas of Swelling At the Base of the Tail
- Males May Develop Orange Breeding Colors Seasonally
- Finer Scales Than Western Fence Lizard
Insects, Arachnids
- Easily Frightened and Seeks Refuge Quickly
- May Play Dead When Threatened
- Basks On the Ground, Low Branches, and Low Boulders
- Uses Mammal Burrows and Rock Crevices For Hibernation
- Primarily Diurnal Activity
- Active From March/April To Late September/Early October
- Juveniles May Be Active Later In Autumn Than Adults
- Males Are More Active and Have Larger Home Ranges Than Females
- Brumates During Winter
- Can Climb To Escape Predators
- Defends Territories
- Engages In Social Interactions
- Males Prefer To Associate With Particular Females
- Females Avoid Certain Types of Males
- Males Show Individual Differences In Courtship Behavior
- Courtship Behavior Is Tailored To Female Reproductive Fitness
- Males Display Intensely Towards Females Less Far Along In the Reproductive Cycle
- Males Tend To Minimize Courtship Costs By Adapting Behavior To Female Needs
- Males Increase Exploratory Behavior Toward Females With More Courtship Experience
- Males May Engage In Exploratory Chemical Behaviors
- Males Display More Toward Females Not In Their Gravid State
- Males Indiscriminately Display Towards Unmated Females
- Females Display Choice Through Differential Avoidance of Males
Snakes, Birds of Prey, Smaller Carnivorous Mammals, Domesticated Cats
- Energy Development Possibly Affecting Related Species
About Sceloporus graciosus
The Sagebrush Lizard (Sceloporus graciosus)
The sagebrush lizard, scientifically known as Sceloporus graciosus, is a common reptile inhabiting the mid to high-altitude regions of the western United States. This species is easily recognized by its distinctive keeled and spiny scales, which typically present in shades of gray or tan and are often adorned with lighter stripes running down its back and sides. Males are particularly notable for their vibrant blue patches on the abdomen and throat, which can intensify to orange during the breeding season.
Habitat and Distribution
This lizard thrives in a variety of environments, commonly found in shrublands, but also adapting to coniferous forests and piñon-juniper woodlands. Its geographic range spans across much of the western U.S., including states like Utah, Nevada, Oregon, Idaho, Colorado, Arizona, and California, often found at elevations from 150 to 3,200 meters. Sagebrush lizards are primarily terrestrial, spending most of their time on the ground but capable of climbing to escape predators.
Behavior and Diet
Sagebrush lizards are diurnal, meaning they are active during the day, basking on surfaces to regulate their body temperature. They are known to be easily startled and will quickly retreat into crevices, burrows, or dense vegetation when alarmed. Their diet consists mainly of insects, such as ants and beetles, and arachnids. During colder months, they brumate, seeking shelter in mammal burrows or rock crevices.
Reproduction
The reproductive cycle of the sagebrush lizard begins in the spring. Males defend territories and engage in courtship rituals involving head bobbing and shudder displays. Females typically lay one or two clutches of eggs, each containing two to ten eggs, in loose soil. The incubation period lasts approximately 45 to 75 days, after which the young lizards emerge and mature within one to two years.
Source: Wikipedia ↗
Frequently Asked Questions
What are the distinguishing physical characteristics of the sagebrush lizard?
The sagebrush lizard is typically gray, brown, or olive with keeled and spiny scales. It features lighter stripes down its back and sides, and males often display blue patches on their abdomen and throat. They are generally smaller than the western fence lizard and have finer scales.
Where is the sagebrush lizard commonly found?
This species is prevalent in the western United States, inhabiting areas from southern California to parts of North Dakota and South Dakota. They are commonly found at mid to high altitudes, preferring shrublands, coniferous forests, and piñon-juniper woodlands.
What does a sagebrush lizard eat?
The sagebrush lizard's diet primarily consists of insects such as ants, beetles, grasshoppers, and flies, as well as arachnids. Western fence lizards are noted as a chief food competitor in overlapping distribution areas.
How do male sagebrush lizards differ from females?
Male sagebrush lizards are typically slightly larger than females and possess distinctive blue patches on their abdomen and throat, which can sometimes be absent. During the breeding season, males may also develop orange coloration. Males also have enlarged postanal scales and two swelling areas at the base of their tail.
What are the reproductive habits of the sagebrush lizard?
Sagebrush lizards mate in the spring, and females lay one or two clutches of two to ten eggs during late spring to midsummer. These eggs are deposited about 1 inch deep in loose soil. The eggs typically hatch in 45 to 75 days, and young lizards become sexually mature within their first or second year.
What are the main predators of the sagebrush lizard?
The sagebrush lizard is preyed upon by various species, with snakes, particularly striped whipsnakes and night snakes, being the primary predators. Birds of prey also consume them in significant numbers, and smaller carnivorous mammals and domestic cats can also be threats.
How does elevation affect the growth rate of sagebrush lizards?
Interestingly, sagebrush lizards at higher elevations tend to grow faster than those at lower elevations, despite having shorter activity periods. This is hypothesized to be due to lower resting metabolic expenditure at higher altitudes, allowing them to allocate more energy to growth.
Related Lizards
Sagebrush lizard
The sagebrush lizard (Sceloporus graciosus) is a common spiny lizard found in the western United States, typically inhabiting shrublands, coniferous forests, and piñon-juniper woodlands. Characterized by keeled, spiny scales that are usually gray or tan, it features lighter stripes along its back and often has orange markings on its sides. Males are distinguished by blue patches on their abdomen and throat, which can intensify to orange during the breeding season.
Scincella lateralis
The Scincella lateralis, commonly known as the little brown skink or ground skink, is a small lizard found in the eastern United States and northern Mexico. It is characterized by its coppery brown back, white or yellow underside, and dark lateral stripe. This species is primarily a forest dweller, preferring habitats with deep leaf litter for cover and moisture.
Hemidactylus scabriceps
The scaly gecko (Hemidactylus scabriceps) is a nocturnal, terrestrial, and insectivorous lizard species native to South India and northern Sri Lanka. It is characterized by its short, stout body, convex forehead, blunt snout, and a cylindrical tail. The dorsal scales are imbricate and leaf-shaped, while the venter is creamy white, often with mottled patterns of black and yellow.