Scientists find several shifts in Pennsylvania tick population over the last century

The prevalence of the most abundant species of ticks found in Pennsylvania has shifted over the last century, according to Penn State scientists, who analyzed 117 years’ worth of specimens and data submitted primarily by residents from around the state.

From https://www.news-medical.net/news/20190503/Scientists-find-several-shifts-in-Pennsylvania-tick-population-over-the-last-century.aspx

from
https://healthnews010.wordpress.com/2019/05/06/scientists-find-several-shifts-in-pennsylvania-tick-population-over-the-last-century/

From https://heidifrost.blogspot.com/2019/05/scientists-find-several-shifts-in.html

from
https://heidifrost0.wordpress.com/2019/05/06/scientists-find-several-shifts-in-pennsylvania-tick-population-over-the-last-century/