Transcript Chapter 15 - McGraw Hill Higher Education

ECOLOGY
First Edition
Chapter 15
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Malaria. This patient has an infection caused by Plasmodium Falciparum.
Note the charcteristic heavy parasite load. Infection with the parasite can
lead to hemolysis.
Trophozoite of Entainoeba histolytica, the cause of amebic dysentery
This photograph depicts an adult male Oropsylla Montana flea, formerly
known as Diamanus Montana. This flea is a common ectoparasite of the
rock squirrel, Citellus variegatus, and in the western United States, is an
important vector for the bacterium Yersinia pestis, the pathogen responsible
for causing plague.
The blacklegged ticks, I. pacificus, (depicted here), and I. scapularis, are
known vectors for the zoonotic spirochetal bacteria Borrelia burgdorferi,
which is the pathogen responsible for causing Lyme disease. The ticks,
inoculated with the bacterium when they bite infected mice, squirrels and
other small animals, subsequently pass the pathogens to their human
victims when they obtain a blood meal.B. burgdorferi bacteria can infect
several parts of the body, producing different symptoms at different times.
Not all patients with Lyme disease will have all symptoms, and many of the
symptoms can occur with other diseases as well. If you believe you may
have Lyme disease, it is important that you consult your health care provider
for proper diagnosis.
An adult female blacklegged tick, engorged after a blood meal, rests on a
leaf.
Male and female Cape Batis (Batis capensis) feeding Klaas's Cuckoo
(Chrysococcyx klaas) chick
Full-length view of a Blue Tit (Cyanistes caeruleus) looking at camera from
among tree branches
Musk Ox