Assessment of Critical Habitat
101 Significantly the Minister stated in his Reasons that his findings were based on evidence provided to him in the Decision Brief which specifically included the Draft Recovery Plan. While the Minister did not otherwise expressly refer to the Draft Recovery Plan in his Reasons, or state that the Gardens constituted a 'critical habitat', the numbers of GHFF located in the Gardens were known to the Minister, as well as the deteriorating condition of their habitat. The Summary Report to the PER also records that the camp in the Gardens is but part of a wider Sydney population.
102 The PER referred to the findings of a Sydney tree expert, Judy Fakes, made in 2005 that the heritage trees in Palm Grove would continue to die unless action was taken, and that the loss of the 3.5 ha habitat from the Gardens would be compensated by the provision of similar habitat which is available for long-term management. The Summary Report included the following:
The proposed action would not decrease or adversely affect the overall quality of habitat for this species, and is therefore not considered to cause a significant population decline.
103 A 'key threat' to the GHFF identified by DEWHA in the Recommendation Report was 'loss and fragmentation of habitat which results in the decrease of food sources and roosting sites'. Based upon such evidence, it was open to the Minister to conclude that unless action was taken to relocate the GHFF, the continued deterioration of their habitat within Palm Grove would result in potentially severe decreases in food sources and suitable roosting sites.
104 Additionally, the Executive Summary to the PER referred to the migratory nature of the GHFF. The relevant portion of the Executive Summary is reproduced in [53] above.
105 The Recommendation Report stated that 'dispersal may result in fragmentation of the GHFF population into 2 or more populations elsewhere and it is also possible that the population may join other GHFF colonies'. However such potential adverse impacts were to be managed by the BGT as proposed in 6.1.1.7.2 of the Recommendation Report which provided, inter alia:
113. The BGT have proposed a research, monitoring and management program which involves monitoring the movement, population, stress levels and reproductive output of a sample of GHFF at the Royal Botanic Gardens to determine the impact of the dispersal on the colony. Various measures have been proposed that will be undertaken prior, during and after dispersal. The BGT have proposed a number of measures to monitor increased stress levels as a result of the dispersal including observed behaviour, observation of aborted foetuses, abandoned young, and injured and dead GHFF.
114. The proponent has established a steering committee to oversee the dispersal. The role of the steering committee is to guide the dispersal proposal through the planning, implementation, and evaluation phases, in order to ensure the best chances of success, and to maintain transparency throughout the entire process. The functions that the committee members are to perform include: provide advice and stakeholder input, review and provide feedback on the content of documents, ensure the process follows relevant procedures for dispersal, consultation and reporting to the director and executive director of the BGT.
115. The original method proposed by the BGT was to include static and fly-out counts and radio-tracking movement by fitting 50 adult GHFF with radio trackers and 400 adults with bands. This represents 1% and 8% of the population of based on the population being 5,000 to 7,000 GHFF, this however may not be adequate is [sic] there is an influx of GHFF prior to dispersal. As a result of the negotiation of the draft conditions of approval, this has been revised which is discussed below and at Attachment A.
106 The Recommendation Report also referred to the identification by the BGT of potential sites to which the GHFF may relocate. Some 213 sites were suggested, each being identified by patches of vegetation that would be potentially suitable for the GHFF and each site was assessed according to criteria known to influence their roost selection.
107 The Minister also had before him the Report of Dr GC Richards. Such report was to provide recommendations to ensure that 'any potential impacts likely to occur in relation to the relocation of Grey-headed Flying Foxes are minimalised, or do not occur'. While the report did identify previous failed relocation attempts of GHFF, Dr Richards did not suggest that the loss of the Gardens would be, of itself, a matter which would be destructive to the GHFF.
108 Section 82(1) of the EPBC Act defines the 'relevant impacts' of an action. Section 82(1) relevantly provides:
(1) If the Minister has decided under Division 2 of Part 7 that an action is a controlled action, the relevant impacts of the action are the impacts that the action:
(a) has or will have; or
(b) is likely to have;
on the matter protected by each provision of Part 3 that the Minister has decided under that Division is a controlling provision for the action.
109 An action has a 'significant impact' if the impact is 'important, notable, or of consequence having regard to its context or intensity': see Booth v Bosworth (2001) 117 LGERA 168 at [99]. As was stated by Marshall J in Brown v Forestry Tasmania and Others (No 4) (2006) 157 FCR 1 at [300], the EPBC Act requires a construction 'which views protection of the environment as an act of not merely keeping threatened species alive, but actually restoring their populations so that they cease to be threatened'.
110 In his Reasons the Minister describes the mitigation measures to be taken during implementation of the proposal, as contained in conditions 2 and 3. Those matters include limiting the dispersal period to the 'safe window' between May and July and the fitting of 100 radio and satellite tags to monitor the movements of a representative sized sample of the GHFF colony.
111 The conditions require that 60% of such tags be fitted to females to ensure efficiency in monitoring breeding of successfully relocated colonies and stipulate that dispersal action must cease if the colony has not dispersed within 31 days. Cessation of the dispersal action is to occur in the event that deaths and/or multiple injuries to GHFF are found within one kilometre of the dispersal or redispersal sites. Further, the approval conditions impose on the BGT a rigorous regime of monitoring post-dispersal. Such is evident from conditions 13 and 14 which are set out in full hereunder:
13. In the event that GHFF disperse from the Botanic Gardens to a site from which they need to be re-dispersed, the person taking the action must:
a) ensure that on days when temperatures are predicted to reach 40°C or more, at sites where adequate vegetation cover is not present, as determined by the panel, and GHFF may consequently be exposed to heat-stress and/or death, water tankers and operators must be present to mist spray the GHFF; and
b) in that local council area where GHFF have established, the person taking the action must undertake a public awareness campaign which must include information on:
(i) the action and where the GHFF originated;
(ii) the status of the GHFF as a nationally threatened species and the associated protection afforded under the Environment Protection and Biodiversity Conservation Act 1999;
(iii) information on what should be done if members of the public come across GHFF, including injured and dead GHFF; and
(iv) identifying the associated potential human health issues and risks to people, including Hendra Virus and Lyssavirus and appropriate preventative measures.
Successful re-location of the Botanic Gardens GHFF colony
14. The person taking the action must act in accordance with these conditions of approval, until such time as the successful re-location of the Botanic Gardens GHFF colony can be demonstrated in a report. The report must be accompanied by written and signed support from the panel, submitted to and approved by the Minister.
Successful re-location can be demonstrated if, for each year that dispersal or re-dispersal activity is undertaken in the Botanic Gardens;
a) 80% of the colony present at the commencement of dispersal or re-dispersal activity in that year, as determined by the monitoring of GHFF as per conditions of this approval, are residing in habitat:
(i) of a sufficient area, nature and quality to support the permanent occupation by the GHFF colony present; and
(ii) that is located within 50km of foraging habitat of a sufficient area, nature and quality to support the foraging requirements of the GHFF colony present; and
(iii) with canopy, mid and under-storey vegetation sufficient to ensure that minimal GHFF will die from heat stress during days of air temperatures above 40°C; and
(iv) that is located in an area where the (human) community will not require the new GHFF colony or colonies to be re-dispersed as determined by the panel; and
(v) where more than 70% of adult GHFF females in each new colony are breeding each year for a minimum of 3 consecutive years - a member of the independent observer group must oversee and verify the collection of this data; and
b) the person taking the action has prepared and committed funding for the implementation of a vegetation rehabilitation plan for the necessary sites (as determined by the panel) of the new GHFF colony or colonies from the Botanic Gardens within the Sydney region. The vegetation management plan must detail commitments as to the provision of expert advice in seed collection, horticulture and ecology at the sites. The person taking the action must provide for up to $10,000 per year (including in kind contributions) for a period of 5 years to fund activities implemented under the vegetation rehabilitation plan.
112 The Court also notes that the Minister had before him the material contained in paragraph 5.2.5 of the PER (reproduced at paragraph [54] above) which informed him that the existing Palm Grove habitat was 'not considered to be critical to the survival of this species or its population at a local or national level'. The PER further stated at paragraph 5.2.7 that the Gardens 'is not a sustainable habitat for the GHFF and the animals would eventually leave when the Palm Grove is too degraded'.
113 However, counsel for the Minister submitted that:
So there's no dispute that this is critical habitat, and that loss of that area is a significant impact. The question then was, well, given that it is a significant impact, look at what is proposed and consider whether or not what is proposed will be sufficient to address that impact. If it's not, can further conditions be imposed to address that impact? If not, to the satisfaction of the Minister, the action won't be approved. So it's a fundamental part of the consideration process, in my submission.