Winter acclimatization among passerine birds involves metabolic adjustments that allow for high rates of thermogenesis. In previous studies, we observed geographic variation in the basal metabolic rate (BMR) of overwintering cardinals along a latitudinal gradient at two different longitudinal transects. Because thyroid hormones (THs) are important for metabolic adjustments in endotherms, we det...

Line transects have been widely applied for the estimation of animal abundance because they are regarded as simple, economical, and relatively precise. The recent development of automated techniques for the estimation of animal density from distance sampling data allows greater potential for ®eld biologists and wildlife managers to become involved in the analytical summary of their research. An...

The response of ground-dwelling spider assemblages to edges created by wildfire was compared to their response to clear-cut edges in black spruce forests in eastern Canada. For each disturbance six edge transects 100 m long were established. Spiders were collected with pitfall traps 10 m apart from 50 m inside the disturbances to 50 m in the forest interior. Measurements of the forest floor str...

This article is a reflection on significant recent growth in engineering education programs devoted to service-learning, sustainable development, humanitarian engineering, and so on, which we group under the term “engineering to help” (ETH). ETH programs are touted for their ability to provide engineering students, mainly from wealthy nations, with an opportunity to practice small-scale enginee...