SARA RFI - Ecological Assessment Report

Ecological Assessment Report – Appendices
14 Serenity Close, Noosa Heads



APPENDIX 6: HEURISTIC DECISION MODEL
The following represents a heuristic decision tree for use in habitat likelihood assessment
to determine the likelihood of species occupying or utilising a subject site. While this
heuristic tree was designed for use in the assessment of fauna habitat likelihood, there is
nothing precluding its use for flora habitat likelihood assessment. The definitions
underlying the likelihood assessment, predicating outcomes of the decision tree, are
shown below, with p(x) representing the probability (0% - 100%) that a given species (x)
will be occupying or utilising the site:



                                                         Was the
                                                          species
                                                       observed1 on-
                                                           site?

                                                                         O

                                                                     Site contains
                                                                       known or
                                        CONFIRMED                      potential
                                                                    habitats2 for the
                                                                       species?



                                             Species                                                Species
                                         recorded from                                          recorded from
                                        similar habitat in                                     similar habitat in
                                         locality3 of the                                       locality3 of the
                                              site?                                                  site?

                                 S
                                                       Species within
                                                             the
                              LIKELY                   distributional               POSSIBLE                    UNLIKELY
                                                        range4 of the
                                                          species?

                                                                         O



                                          POSSIBLE                    UNLIKELY




     •    Confirmed – observed or recorded on the site 1 (p(x) = 100%);




1 Based on systematic survey or incidental observation by Litoria Consulting ecologists, or based on anecdotal observations by

credible source.