
Community identification
American Dog Tick
Dermacentor variabilis
- Order & Family
- Ixodida, Ixodidae
- Size
- 3.6 mm to 15 mm (unfed vs engorged)
Natural Habitat
Tall grass, woodlots, shrubby areas, and trails commonly frequented by mammals
Diet & Feeding
Obligate hematophagy; feeds on the blood of small mammals as larvae/nymphs and dogs or humans as adults
Behavior Patterns
Wait for hosts via 'questing' on vegetation; can survive for long periods without food through a complex three-host life cycle
Risks & Benefits
Major risk to humans as vectors for Rocky Mountain spotted fever and tularemia; no significant ecological benefits recorded for humans