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In this episode of Talking Trees, we explore the intricate relationship between tree diseases and biodiversity. While tree pathogens are often seen as purely destructive forces, they also play an essential role in shaping ecosystems, creating gaps in forests that promote species diversity and ecological succession.

We discuss key factors influencing tree diseases, including:

• Plant trade and globalization – How the movement of plants contributes to the spread of non-native pathogens.
• Climate change – Rising temperatures and altered precipitation patterns are shifting disease dynamics.
• Forest diversity and disease resistance – The role of species-rich forests in limiting the spread and impact of pathogens.
• Pathogen interactions – How tree diseases interact with other ecological disturbances, such as insect outbreaks and extreme weather events.

We also examine recent case studies on the impact of invasive tree pathogens and the importance of monitoring, prevention, and integrated disease management to maintain resilient forests.

Join us as we uncover the dual role of tree diseases—both as threats and as natural components of healthy forest ecosystems.

Background information:

• Pautasso. 2022. Tree Diseases.pdf

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