…diagnose species: “tree-based taxon clustering and statistical taxon analysis indicate that molecular evidence does coincide with morphological hypotheses” and “we disagree with [Meyer and Paulay’s] point that independently of the…
…revising labels in every collection around the world is impractical. Given that assigning specimens to species involves sorting among millions of species names, this approach does not have to give…
Why DNA barcoding works as well as it does is an unsolved scientific puzzle. It is long observed that mitochondrial DNA differences within animal species are generally much smaller than…
…is not the most variable non-coding region in chloroplast DNA and does not differ enough to separate many closely-related plant species. On the plus side, there are robust primers which…
…waste that sinks to ocean floor. What does this very abundant, central-to-food-web species eat? For many animals, observation of eating behavior is impractical, and analysis of stomach contents or feces…
We have newly posted on-line an earlier paper for which we continue to receive reprint requests: “Does Climate Still Matter.”…
On 19 January New York Times reporter Andrew Revkin blogged the text of our February 2004 Keystone talk Does Climate Still Matter. This led to several requests for the visuals…
…b sequences for only 2,751 species (28% of world birds). Of species with cyt b sequences, 60% are represented by single sequences. How does this compare to COI barcode data…
Growing data sets demonstrate DNA barcoding usually works, but why? Why does a very short stretch of DNA, such as a DNA barcode which usually represents less than one one-millionth…
…recently. Asian households using wood- and dung- fueled ovens experience indoor particulate concentrations greater than one hundred times the WHO standards. Another problem of intense local concern is disposal of…