| Widespread dispersal of Borrelia burgdorferi-infected ticks collected from songbirds across Canada. | Abstract Millions of Lyme disease vector ticks are dispersed annually by songbirds across Canada, but often overlooked as the source of infection. For clarity on vector distribution, we sampled 481 ticks (12 species and 3 undetermined ticks) from 211 songbirds (42 species/subspecies) nationwide. Using PCR, 52 (29.5%) of 176 Ixodes ticks tested were positive for the Lyme disease spirochete, Borrelia burgdorferi s.l. Immature blacklegged ticks, Ixodes scapularis, collected from infested songbird ... | 2011 | 21864130 |
| experienced migratory songbirds do not display goal-ward orientation after release following a cross-continental displacement: an automated telemetry study. | the ability to navigate implies that animals have the capability to compensate for geographical displacement and return to their initial goal or target. although some species are capable of adjusting their direction after displacement, the environmental cues used to achieve this remain elusive. two possible cues are geomagnetic parameters (magnetic map hypothesis) or atmospheric odour-forming gradients (olfactory map hypothesis). in this study, we examined both of these hypotheses by surgically ... | 2016 | 27876843 |