Read default objectives
sdm_read_objectives.RdFetches the standard objectives from the SDM API and returns
them as ready-to-use sdm_objective objects. Pass species to
get species-specific defaults instead of generic ones.
Value
A list of sdm_objective objects. Each objective has
fields: id (e.g., "obj_1", assigned by sdm_scenario()),
name, description, direction ("higher_is_better" or
"lower_is_better"), range (length-2 numeric), and
value_function (length-5 numeric). Pass these directly to
sdm_scenario().