Quantitative review of state imperiled species acts
This study was recently published in Conservation Letters, which you can read here. Below see interactive maps of our findings.
To combat biodiversity loss in the United States, imperiled species are protectedunder the federal Endangered Species Act (ESA), which is currently threatenedby political initiatives seeking to weaken it and potentially transfer substantialauthority to the states. To assess the conservation capacity of current state laws,we conducted a quantitative analysis of imperiled species protection within all 50 states by compiling data on all state-listed species, ESA-listed species, and IUCNRed List species in each state. We found that currently 16% of ESA-listed speciesand 52% of IUCN imperiled species are not protected by any state law, and if theESA were repealed these numbers could increase to 73% of ESA-listed species and 81% of IUCN imperiled species unprotected. Although protection varies widelyamong states, our results suggest that revoking the ESA would be highly detri-mental to imperiled species conservation and recovery in the United States
State Listed Species
The total number of species protected in each U.S. state by each state imperiled species act:
(Hover over or click on each state to see the total value)
Now let’s split this into animal and plant species protected in each state
Total animal species protected in each state