A new CDC study finds cold-season temperature and rainfall are the two leading factors that determine climate suitability for ticks within California, deeming the state's far northern coast and the western Sierra Nevada foothills as the most likely habitat for the western blacklegged tick.
A study of lone star ticks in the forested Missouri Ozarks found that nymphs and adults were more abundant in valleys and on north-facing hills than in other areas. Meanwhile, nymphs appeared less often in the areas of greater temperature variability, while adults were less prevalent with increased elevation.
A study in Quebec highlights the value of reporting tick bites and submitting tick specimens to public health agencies. Such "passive surveillance" outpaces field collection of ticks in identifying areas of emerging risk for Lyme disease.
American cockroaches show different individual "personalities" that relate to their fleeing behavior and preference for venturing into open spaces or remaining close to walls or other objects. A new study suggests these differences could be an evolutionary benefit for their collective fleeing response.