There is much concern about the accelerated pace of extinctions globally, so when a species is rediscovered, it gives hope to ...

De Multi-Species Indicator (MSI) is the geometric average of the indices in a set of (either pre-selected or unselected) species. For the species in the indicator, counts in a particular year (the ...

The “smeltdown in the Delta,” as the extinction trajectory of delta smelt is known, has left the once-abundant species in critical condition due to record-high water diversions, increasing water ...