Sentences with phrase «studying tick populations»

Scientists are constantly studying tick populations to provide us with better information and methods to reduce tick risks.

Not exact matches

Research Assistant, Institute of Ecosystem Studies, NY (May 00 — Aug 00) The interactions of tree regeneration, rodent and bird populations, and tick density and their effect on the risk of human exposure to vector - borne disease.

Other aspects of global warming's broad footprint on the world's ecosystems include changes in the abundance of more than 80 percent of the thousands of species included in population studies; major poleward shifts in living ranges as warm regions become hot, and cold regions become warmer; major increases (in the south) and decreases (in the north) of the abundance of plankton, which forms the critical base of the ocean's food chain; the transformation of previously innocuous insect species like the Aspen leaf miner into pests that have damaged millions of acres of forest; and an increase in the range and abundance of human pathogens like the cholera - causing bacteria Vibrio, the mosquito - borne dengue virus, and the ticks that carry Lyme disease - causing bacteria.