Episode #20: Eucalypts Spotlight Biosecurity Failures
BioScience Talks11 Jan 2017

Episode #20: Eucalypts Spotlight Biosecurity Failures

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.

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Episode 22: Nature's Mental Health Benefits

Episode 22: Nature's Mental Health Benefits

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...

8 Mars 201718min

Episode 21: Bright Spots of Resilience to Climate Disturbance

Episode 21: Bright Spots of Resilience to Climate Disturbance

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 ...

8 Feb 201728min

Episode #19: Microbial Biodiversity in the Environment Can Alter Human Health

Episode #19: Microbial Biodiversity in the Environment Can Alter Human Health

The science of human microbiomes is advancing at an incredible pace. With each passing day, more is known about the vast suite of microorganisms that inhabit human bodies—and about the important role ...

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Episode #18: Reservoirs Are a Major Source of Greenhouse Gases

Episode #18: Reservoirs Are a Major Source of Greenhouse Gases

Over 1 million dams exist worldwide. These structures have numerous environmental effects, and there is no shortage of research on the various ecological consequences of dams. But there is another maj...

9 Nov 201626min

Episode #17: Big Data and Good Science

Episode #17: Big Data and Good Science

Scientists have long debated the best methods to achieve sound findings. In recent decades, hypothesis-driven frameworks have been enshrined in textbooks and school courses, with iterative and inducti...

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Bonus Episode: Bear Behavior and the Recent Montana Grizzly Mauling

Bonus Episode: Bear Behavior and the Recent Montana Grizzly Mauling

Most interactions between humans and bears result in no harm to either party. However, aggressive bears can occasionally pose a serious threat to human well-being, such as occurred in a recent attack ...

5 Okt 201626min

Episode #16: Hardened Shorelines Are a Threat to Ecosystems

Episode #16: Hardened Shorelines Are a Threat to Ecosystems

The installation of structures to protect against coastal threats, called shoreline hardening, is a common practice worldwide, with many coastal cities having 50% or more of their shores protected aga...

14 Sep 201634min

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