Nature's positive impact on mood is easily understood on an intuitive level, but a more fine-grain analysis reveals quantifiable effects with potentially serious implications for human well-being. For this episode of BioScience Talks, we are joined by Dr. Daniel Cox of the Environment and Sustainability Institute at the University of Exeter, in Penryn, United Kingdom. Writing for BioScience, Cox and his colleagues described recent work that found strong correlations between nature exposure and positive markers of mental health. In addition, the authors used dose–response modeling to uncover threshold effects that may help guide urban planning, with the ultimate goal of reducing the societal burdens of mental illness.
Climate-driven disturbances are having profound impacts on coastal ecosystems, with many crucial habitat-forming species in sharp decline. However, among these degraded biomes, examples of resilience are emerging. For this episode of BioScience Talks, we're joined by Dr. Jennifer O'Leary, a California Sea Grant Marine Biologist based at California Polytechnic State University, and Dr. Fiorenza Micheli, from Hopkins Marine Station of Stanford University. Their recent article in BioScience discusses a large-scale study that uncovered numerous ecosystem "bright spots," in which habitat-forming species proved either resistant to or able to recover from sometimes severe perturbations. Of particular importance, say the authors, are the possible implications for ecosystem-sparing management.
For more than 100 years, eucalypts—woody plants that range in size from shrubs to trees—have been transported from their natural ecosystems in Australia to plantations across the globe. This unique history provides a novel lens for viewing the spread of pathogens and may shed light on future outbreaks as ecosystems face growing pressure from climate change.
In this episode of BioScience Talks, we spoke with Dr. Treena Burgess of Murdoch University in Western Australia, who also holds an adjunct appointment with the Forestry and Agricultural Biotechnology Institute at the University of Pretoria in South Africa. She describes her recent article in BioScience, written with Michael Wingfield. In it, the authors articulate seven scenarios of pathogen movement and disease epidemics, as well as the biosecurity risks that arise from poorly controlled germplasm movement. The dangers are significant, with economically important eucalypt plantations and native ecosystems both facing significant threats.