39 research outputs found

    Lived experiences of mental health recovery in persons of culturally and linguistically diverse (CALD) backgrounds within the Australian context

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    Lived experience research related to mental health recovery is advancing, but there remains a lack of narrative material from the perspectives of people from under-represented, non-dominant cultural backgrounds in this domain. This study aimed to explore the lived experiences of mental health recovery in people of culturally and linguistically diverse (CALD) backgrounds in the Australian context. The current study involved a secondary analysis of audio and visual data collected during the digital storytelling project Finding our way in Melbourne, Australia. Thematic analysis was used to understand the lived experience narratives of nine participants in relation to mental health recovery. Five themes were identified through an iterative process of analysis, including Newfound opportunities and care, Family as key motivators and facilitators, Coping and generativity, Cultivating self-understanding and resilience, and Empowerment through social engagement. First person lived experience narratives offer deep insight into understanding the ways in which individuals of marginalised communities conceptualise and embody recovery. These findings further the literature and understanding on how to better serve the needs of people with mental health challenges from CALD communities through informed knowledge of what may be helpful to, and meaningful in, individuals’ recoveries

    Timing and Nature of the Deepening of the Tasmanian Gateway

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    Tectonic changes that produced a deep Tasmanian Gateway between Australia and Antarctica are widely invoked as the major mechanism for Antarctic cryosphere growth and Antarctic Circumpolar Current (ACC) development during the Eocene/Oligocene (E/O) transition (∼34–33 Ma). Ocean Drilling Program (ODP) Leg 189 recovered near-continuous marine sedimentary records across the E/O transition interval at four sites around Tasmania. These records are largely barren of calcareous microfossils but contain a rich record of siliceous- and organic-walled marine microfossils. In this study we integrate micropaleontological, sedimentological, geochemical, and paleomagnetic data from Site 1172 (East Tasman Plateau) to identify four distinct phases (A–D) in the E/O Tasmanian Gateway deepening that are correlative among ODP Leg 189 sites. Phase A, prior to ∼35.5 Ma: minor initial deepening characterized by a shallow marine prodeltaic setting with initial condensation episodes. Phase B, ∼35.5–33.5 Ma: increased deepening marked by the onset of major glauconitic deposition and inception of energetic bottom-water currents. Phase C, ∼33.5–30.2 Ma: further deepening to bathyal depths, with episodic erosion by increasingly energetic bottom-water currents. Phase D, \u3c30.2 Ma: establishment of stable, open-ocean, warm-temperate, oligotrophic settings characterized by siliceous-carbonate ooze deposition. Our combined evidence indicates that this early Oligocene Tasmanian Gateway deepening initially produced an eastward flow of relatively warm surface waters from the Australo-Antarctic Gulf into the southwestern Pacific Ocean. This “proto-Leeuwin” current fundamentally differs from previous regional reconstructions of eastward flowing cool water (e.g., a “proto-ACC”) during the early Oligocene and thereby represents an important new constraint for reconstructing regional- to global-scale dynamics for this major global change event

    Infilled Ditches are Hotspots of Landscape Methane Flux Following Peatland Re-wetting

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    Peatlands are large terrestrial stores of carbon, and sustained CO2 sinks, but over the last century large areas have been drained for agriculture and forestry, potentially converting them into net carbon sources. More recently, some peatlands have been re-wetted by blocking drainage ditches, with the aims of enhancing biodiversity, mitigating flooding, and promoting carbon storage. One potential detrimental consequence of peatland re-wetting is an increase in methane (CH4) emissions, offsetting the benefits of increased CO2 sequestration. We examined differences in CH4 emissions between an area of ditch-drained blanket bog, and an adjacent area where drainage ditches were recently infilled. Results showed that Eriophorum vaginatum colonization led to a “hotspot” of CH4 emissions from the infilled ditches themselves, with smaller increases in CH4 from other re-wetted areas. Extrapolated to the area of blanket bog surrounding the study site, we estimated that CH4 emissions were around 60 kg CH4 ha−1 y−1 prior to drainage, reducing to 44 kg CH4 ha−1 y−1 after drainage. We calculated that fully re-wetting this area would initially increase emissions to a peak of around 120 kg CH4 ha−1 y−1, with around two-thirds of the increase (and 90% of the increase over pre-drainage conditions) attributable to CH4 emissions from E. vaginatum-colonized infilled ditches, despite these areas only occupying 7% of the landscape. We predicted that emissions should eventually decline toward pre-drainage values as the ecosystem recovers, but only if Sphagnum mosses displace E. vaginatum from the infilled ditches. These results have implications for peatland management for climate change mitigation, suggesting that restoration methods should aim, if possible, to avoid the colonization of infilled ditches by aerenchymatous species such as E. vaginatum, and to encourage Sphagnum establishment
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