Rush or relax: migration tactics of a nocturnal insectivore in response to ecological barriers.

During their annual migration, avian migrants alternate stopover periods, for refuelling, with migratory flight bouts. We hypothesise that European Nightjars (Caprimulgus europaeus) adapt their daily migration tactics in association with biomes. We tracked the autumn migration of 24 European Nightjars, from breeding populations in Mongolia, Belgium and UK, using GPS-loggers and multi-sensor data loggers. We quantified crepuscular and nocturnal migration and foraging probabilities, as well as daily travel speed and flight altitude during active migration in response to biomes. Nightjars adopt a rush tactic, reflected in high daily travel speed, flight altitude and high migration probabilities at dusk and at night, when travelling through ecological barriers. Migration is slower in semi-open, hospitable biomes. This is reflected in high foraging probabilities at dusk, lower daily travel speed and lower migration probabilities at dusk. Our study shows how nightjars switch migration tactics during autumn migration, and suggest nightjars alternate between feeding and short migratory flight bouts within the same night when travelling through suitable habitats. How this may affect individuals' fuel stores and whether different biomes provide refuelling opportunities en route remains to be investigated, to understand how future land-use change may affect migration patterns and survival probabilities.

A randomized clinical trial of targeted cognitive behavioral treatment to reduce catastrophizing in chronic headache sufferers.

UNLABELLED: This randomized clinical trial (RCT) examined the efficacy of a cognitive-behavioral treatment (CBT) specifically targeted toward reducing pain catastrophizing for persons with chronic headache. Immediate treatment groups were compared with wait-list control groups. Differential treatment gains based on the order of presentation of 2 components of CBT (cognitive restructuring and cognitive/behavioral coping) and the role of catastrophizing in treatment outcome were examined. Thirty-four participants enrolled in a 10-week group treatment and 11 completed a wait-list self-monitoring period. Participants reported significant reductions in catastrophizing and anxiety and increased self-efficacy compared with wait-list control subjects, and these were maintained at follow-up. Although we did not find overall differences in the reduction of headache frequency or intensity compared with wait-list control subjects, calculation of clinical significance on headache indicators suggest that approximately 50% of treated participants showed meaningful changes in headache indices as well. Order of treatment modules was not related to gains during treatment or at follow-up; however, almost all changes occurred during the second half of treatment, suggesting that duration of treatment participation is important. PERSPECTIVE: Cognitive-behavioral treatment targeting reduction of catastrophizing for chronic headache pain reduced negative cognitive and affective variables associated with recurrent headache, increased headache management self-efficacy, and in half of the participants, produced clinically meaningful reductions in headache indicators. Length of treatment is an important factor to consider when providing CBT for chronic pain.

Meta-analyses and systematic reviews of psychological treatments for chronic pain: relevance to an evidence-based practice.

As evidence-based practitioners become more reliant on systematic reviews to inform treatment, it becomes important to systematize reporting details as well as improve the quality of the primary studies that will later be incorporated into this secondary literature. In this article, the authors consider several specific factors that can serve this function in the area of chronic pain: (a) adhering to a standardized set of reporting standards; (b) measuring a standardized set of short- and long-term outcome variables; (c) providing information about individual differences; and (d) providing detailed, easily accessible documentation of the treatment program (or progams). The article also highlights ways that practitioners and researchers can collaborate on treatment outcome research, thereby improving the ability to discover and disseminate effective treatments for patients who suffer from chronic pain.