Climatic effects on the synchrony and stability of temperate headwater invertebrates over four decades.

Important clues about the ecological effects of climate change can arise from understanding the influence of other Earth-system processes on ecosystem dynamics but few studies span the inter-decadal timescales required. We, therefore, examined how variation in annual weather patterns associated with the North Atlantic Oscillation (NAO) over four decades was linked to synchrony and stability in a metacommunity of stream invertebrates across multiple, contrasting headwaters in central Wales (UK). Prolonged warmer and wetter conditions during positive NAO winters appeared to synchronize variations in population and community composition among and within streams thereby reducing stability across levels of ecological organization. This climatically mediated synchronization occurred in all streams irrespective of acid-base status and land use, but was weaker where invertebrate communities were more functionally diverse. Wavelet linear models indicated that variation in the NAO explained up to 50% of overall synchrony in species abundances at a timescale of 4-6 years. The NAO appeared to affect ecological dynamics through local variations in temperature, precipitation and discharge, but increasing hydrochemical variability within sites during wetter winters might have contributed. Our findings illustrate how large-scale climatic fluctuations generated over the North Atlantic can affect population persistence and dynamics in inland freshwater ecosystems in ways that transcend local catchment character. Protecting and restoring functional diversity in stream communities might increase their stability against warmer, wetter conditions that are analogues of ongoing climate change. Catchment management could also dampen impacts and provide options for climate change adaptation.

Bullying, discrimination, and sexual harassment among intensive care unit nurses in Australia and New Zealand: An online survey.

BACKGROUND: Bullying, discrimination, and sexual harassment are significant problems within healthcare organisations but are often under-reported. Consequences of these behaviours within a healthcare setting are wide ranging, affecting workplace environments, personal well-being, and patient care and leading to increased staff turnover and quality of patient care and outcomes. Whilst there has been some work undertaken in the general nursing workforce, there is a dearth of evidence regarding the extent and impact of these behaviours on the nursing workforce in intensive care units (ICUs) in Australia and New Zealand. OBJECTIVE: We aimed to determine self-reported occurrences of bullying, discrimination, and sexual harassment amongst ICU nurses in Australia and New Zealand. METHODS: A prospective, cross-sectional, online survey of ICU nurses in Australia and New Zealand was undertaken in May-June 2021, distributed through formal colleges, societies, and social media. Questions included demographics and three separate sections addressing bullying, sexual harassment, and discrimination. RESULTS: In 679 survey responses, the overall reported occurrences of bullying, discrimination, and sexual harassment in the last 12 months were 57.1%, 32.6%, and 1.9%, respectively. Perpetrators of bullying were predominantly nurses (59.6%, with 57.9% being ICU nurses); perpetrators of discrimination were nurses (51.7%, with 49.3% being ICU nurses); and perpetrators of sexual harassment were patients (34.6%). Respondents most commonly (66%) did not report these behaviours as they did not feel confident that the issue would be resolved or addressed. CONCLUSIONS: Determining the true extent of bullying, discrimination, and sexual harassment behaviours within the ICU nursing community in Australia and New Zealand is difficult; however, it is clear a problem exists. These behaviours require recognition, reporting, and an effective resolution, rather than normalisation within healthcare professions and workplace settings in order to support and retain ICU nursing staff.

Mediators between perfectionism and eating disorder psychopathology in a community sample.

The aim of this study was to investigate the mediating effect of shape and weight overvaluation and conditional goal-setting on the relationship between perfectionism and eating pathology among women in the general community. Results from structural equation modeling indicated that the full mediation model previously established with a clinical sample (Watson et al., 2011), generalized to the present community sample (n=202). The indirect effect of self-oriented perfectionism on eating disorder pathology was .25 (p<.001) via shape and weight overvaluation, and .10 (p<.01) via conditional goal-setting, supporting the hypothesis that self-oriented perfectionism increased eating disorder psychopathology via each mechanism. Shape and weight overvaluation was the stronger mediator. The findings provide evidence to support existing cognitive-behavioral formulations of eating pathology and clinical perfectionism, and have implications for the prevention of eating pathology.