Are extinction opinions extinct?

Are extinction opinions extinct?

Extinction models vary in the information they require, the simplest considering the rate of certain sightings only. More complicated methods include uncertain sightings and allow for variation in the reliability of uncertain sightings. Generally extinction models require expert opinion, either as a prior belief that a species is extinct, or to establish the quality of a sighting record, or bot...

All opinions are not equal.

To the Editor: Gibbons et al1 detail the “noble” and Herculean task of developing American College of Cardiology/American Heart Association cardiovascular guidelines. Recommendations are based on either experimental results or opinion, with the latter being considered of uniformly lower evidentiary importance. The contribution of opinion to the guidelines is substantial in that opinion supports...

THE ECOLOGY OF DE-EXTINCTION Pathways to de-extinction: how close can we get to resurrection of an extinct species?

1. De-extinction, the idea that extinct species might soon be resurrected, receives considerable attention in both popular and scientific literature, in particular with regard to its potential ecological and ethical consequences. 2. Here, I review the three main pathways that are being considered at present for de-extinction: back-breeding, cloning via somatic cell nuclear transfer (SCNT) and g...

Ranking the university stars: are opinions sufficient?

(USA), are the only global university performance tables to judge world-class universities across all of their core mis-sions—teaching, research, knowledge transfer and international status. The top university rankings employ 13 carefully calibrated performance indicators to provide the most comprehensive and balanced comparisons available, which are trusted by students, academics, university l...

Fairness Opinions : Are They Fair or Should