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Livestock heat stress threatens production, particularly in semi-arid, arid and tropical regions. Using established temperature thresholds for sheep, we modelled +1 °C and +3 °C temperature increases over the historical baseline, estimating that 2.1 million potential lambs are lost annually due to heat stress alone, increasing to 2.5 and 3.3 million, respectively, as temperatures rise. Heat stress poses risks at key periods of the reproductive cycle, with consequences across the Australian sheep flock., (© 2024. The Author(s), under exclusive licence to Springer Nature Limited.)

Purpose: Over and above the risks associated with ageing, older migrants are also at risk of social isolation. The social identity approach, and the Social Identity Model of Identity Change (SIMIC) in particular, provides a theoretical basis from which to understand the factors contributing to social isolation and how this then impacts on older migrants' capacity to age well in a foreign land. Building on the recognition that migration involves a major life change, we explore this transition qualitatively focusing specifically on social connectedness and adjustment., Methods: In semi-structured interviews with 29 older migrants in Australia, we examined participants' experiences of migration and perceptions of identity and identity change. We also considered in more detail experiences of the most and least socially isolated individuals to understand adjustment trajectories., Results: We found evidence supporting the key processes described in SIMIC (relating to social identity continuity, social identity gain, and perceived identity compatibility), suggesting that where adjustment was positive it was experienced as a process of successfully adapting to identity change., Conclusion: We emphasise the importance of identity resources as substantial and concrete assets that can enhance the well-being among older adults aging in a foreign land.