Lyme Disease In Humans Is Caused By Infection With A Spirochete Bacterium The Spirochete Is Transmitted From Mammal To 1 (80.97 KiB) Viewed 26 times
Lyme Disease In Humans Is Caused By Infection With A Spirochete Bacterium The Spirochete Is Transmitted From Mammal To 2 (32.4 KiB) Viewed 26 times
Lyme Disease in humans is caused by infection with a spirochete bacterium. The spirochete is transmitted from mammal to mammal by the deer tick. Scientists discovered that heavy ("mast") acorn production, which occurs every two to six years in oak forests, sets off an ecological chain reaction that regulates Lyme disease. Heavy crops of acorns attract deer to oak forests in autumn. Deer are the preferred host for the adult deer ticks, which lurk in vegetation, waiting to attach to a passing deer so they can take a blood meal. While on the deer, the ticks mate, then eggs drop off. White-footed mice are the favorite hosts of first-year tick larvae. Ticks become infected with the bacterium when they feed on infected animals. Deer are immune to infection by the bacterium, but support tick populations. Use these findings to answer Q6-10 Gypsy moths Nonmast seeds White- footed mice Increase in while looted mouse population per omp Tacom Ticks Mast production to Quercus trees der dr to cal forest Focus Mode Human disease Ⓒ decrease in gypsy moth population Deer Increase in tick population SCIENCE-ART.COM Understory seedlings Increase in human pour to Lyme bacterium public heal azad heather forest tres
Q6. Experts studied these patterns in order to predict major outbreaks of Lyme disease. In 2010 there was a boom in the acorn crop and high rate of tick infection of mice. In 2011 acorns were scarce. What happened to the mouse population and where did the ticks go? [0.75pts] Q7. Scientists/ecologists predicted a big Lyme disease outbreak in 2012, why? [0.75pts] I
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