THE TICK By: Omar Catchings Aaron Vilaubi & Eric Lara
Family: Ixodidae & Argasidae
Genus: Ixodes & Otobius
Species: Ixodes scapularis & Otobius megnini
Hard Bodied Soft Bodied
Structure-Function . Fused cephalothorax and abdomen: allows more bracing for body . Capitulum: enters host to withdraw food . Chelicera: pierces the host’s skin . Hypostome: acts as the hook to anchor the tick to the host . Dorsal shield: exoskeleton that provides support and protection
Geographic Locations & Habitat Requirements
Habitat requirements: Sufficiently high humidity for the ticks to maintain water balance and of a mix of animal species to act as hosts for the three tick stages, larva, nymph and adult.
Ticks can be found all over the world, but they will be more present around warm climates.
Predators and Prey
Guinea Fowl are the only known predator of ticks
Males and female ticks suck blood from mammals (including people), as well as from birds, reptiles, and amphibians.
There are no true competitors of ticks because of their non aggression towards other parasites.
However, as far as a factor of threating tick resiliency, medicine for pets and human is the only “competing” obstacle for ticks.
Ticks reproduce either while engorging on a host which is known as ixodidae mate on-host or they can reproduce off of a host which is known as argasidae mate off-host.
. Female ticks can lay as many as 2000 eggs at one time, or they can release their eggs in intervals. They can also hold off her oviposit for months if the weather is too cold to lay eggs.
Circulation & Respiration
Ticks have an open circulatory system.
Ticks have book lungs.
. Ticks have four life stages: egg, larva, nymph, and adult . To be infective (capable of acquiring and transmitting infection) the tick must be able to maintain the infection through a molt. Ticks vary in their ability to do this.
What makes them unique
. Even though they are extremely small, the diseases ticks can carry are extremely dangerous to humans and can be fatal. . Lyme Disease, babesiosis, ehrlichiosis, and tularemia are examples of such diseases.