The excerpt below is from a WSJ summary of an article that appeared in The Economist on May 19, 2007.
Scientists have taken to upgrading animals once thought to be subspecies into full-fledged species, in what the Economist says is an overzealous attempt to boost conservation of seemingly rare animals.
Sometimes, the reclassification of animals into their own species category is warranted, as new research reveals once-obscured markers that differentiate certain beasts. But lately, the weekly says, primatologists have been suffering from "taxonomic inflation."
. . .
. . . One reason is that by fragmenting animal groups, the number of rare species increases, boosting animal-conservation claims. At the same time, having a greater number of species boosts the chances that a habitat can pursue a legal designation as a protected area.
For the full summary, see:
(Note: ellipsis added.)