HS/ES is calculated from wastd_data$nest_excavations, which are turtle nest observations (TNO).
TNO contain nest habitat as well as nest excavations (egg counts).
Nests with habitat-only will falsely calculate HS/ES as "0" coming from WAStD.
wastdr correctly summarizes these wrong 0 values together with other correctly calculated HS/ES values from actually excavated nests.
HS/ES is calculated from wastd_data$nest_excavations, which are turtle nest observations (TNO). TNO contain nest habitat as well as nest excavations (egg counts). Nests with habitat-only will falsely calculate HS/ES as "0" coming from WAStD. wastdr correctly summarizes these wrong 0 values together with other correctly calculated HS/ES values from actually excavated nests.