When more is less: the fitness consequences of predators attacking more unpalatable prey when more are presented

attacking more unpalatable prey when more are presented When more is less : the fitness consequences of predators

When more is less: the fitness consequences of predators attacking more unpalatable prey when more are presented.

In 1879, Fritz Müller hypothesized that mimetic resemblance in which defended prey display the same warning signal would share the costs of predator education. Although Müller argued that predators would need to ingest a fixed number of prey with a given visual signal when learning to avoid unpalatable prey, this assumption lacks empirical support. We report an experiment which shows that, as t...

When Less is More

engine and airframe manufacturers for decades have cited the direct relationship between engine wear and high exhaust gas temperature (EGT) in recommending that operators use less than maximum takeoff thrust whenever possible. While the cost benefits of reduced-thrust takeoffs are thoroughly documented, the safety benefits are not as well understood. Thus, there is a common perception that usin...

When Less is More.

minimum level. Sometimes more really is more, and less really is less. But often, less is more. If all this piece does is open up the question of whether less is more —if all it does is remind the reader that this is a question, and that our answers to it have important repercussions— then it will have served its purpose. Many ethicists in the ancient tradition argued that human lives could be ...

Resuscitation: when less is more.

I N THIS issue of ANESTHESIOLOGY, Li et al. 1 report on a laboratory study of resuscitation from uncontrolled hemorrhagic shock in rats. For those who have not followed this topic in the trauma literature, the results might seem counterintuitive—even heretical. Resuscitate to a lower blood pressure? How could that possibly be better? Although the physiologic reasons for this enigmatic effect ar...