One thought on “Blue-billed Curassow (Crax alberti)”
The justification for downlisting the species seems solid and, based on the information available, the best course of action. I would like to state, however, that extrapolating the abundances from a protected area and assuming constant abundance across space will likely result in an overoptimistic scenario. It is very safe to assume that density in other populations, particularly in areas where anthropogenic pressures are more evident, are likely lower. However, I am aware that only by estimating density in other local populations we will finally be able to get a much more realistic estimate of population size. Until that information is collected and evidence points to another direction, the species should remain listed as EN.
The justification for downlisting the species seems solid and, based on the information available, the best course of action. I would like to state, however, that extrapolating the abundances from a protected area and assuming constant abundance across space will likely result in an overoptimistic scenario. It is very safe to assume that density in other populations, particularly in areas where anthropogenic pressures are more evident, are likely lower. However, I am aware that only by estimating density in other local populations we will finally be able to get a much more realistic estimate of population size. Until that information is collected and evidence points to another direction, the species should remain listed as EN.