According to a recent article by Tiffany Dazet on labroots.com, research led by Laura Backus, MPH DVM, at the University of California, Davis School of Veterinary Medicine, showed that when temperatures increased from 74 to 100 degrees Fahrenheit, a species of brown dog tick from tropical climates were 2.5 times more likely to feed on humans than dogs. In studying brown dog tick species from temperate climates, ticks appeared to show only a slight preference for humans but, on the other hand, showed a markedly lower preference for dogs.
To read more about Dr. Bakus' research and to watch a video from Live Science which recaps the the study, click here.