Tree Lady Talks

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Summary

In this episode of Tree Lady Talks, Sharon interviews Henry Kuppen, a tree ambassador from the Netherlands, about the concept of 'tree guests'—a reframing of pests and diseases that affect trees. Henry discusses the importance of biodiversity in managing tree health, particularly in relation to the oak processionary moth. The conversation explores various management techniques, the ecological impact of these pests, and the legal and ethical considerations surrounding tree management. The episode emphasizes the interconnectedness of ecosystems and the need for a more holistic approach to arboriculture. In this conversation, Sharon and Henry Kuppen explore the complex relationships between microorganisms, invasive species, and human impact on ecosystems. They discuss the role of trade and travel in spreading diseases like Xylella, the importance of native versus non-native species, and the need for a shift in perspective from an ego-centric view of ecosystems to one of acceptance and understanding. The conversation emphasizes the importance of biodiversity and the need for a more holistic approach to managing tree guests and other species in our environment.

Takeaways

Henry Kuppen is now a tree ambassador, focusing on promoting the importance of trees.
The term 'tree guests' reframes pests and diseases as natural components of tree ecosystems.
Biodiversity is crucial for managing tree health and resilience against pests.
The oak processionary moth poses risks primarily to human health rather than tree health.
Management techniques for pests should be targeted and specific to minimize ecological impact.
Chemical solutions are not the only option; natural predators should be considered.
Legal standards in tree management are evolving to prioritize ecological balance.
Invasive species require careful management to protect native ecosystems.
Understanding the food chain can help in accepting tree guests as part of nature.
The conversation highlights the responsibility of humans in declining biodiversity. Microorganisms play a crucial role in ecosystems and can spread diseases.
Human activities, such as trade and travel, significantly impact the rise of invasive species.
The increase in pests and diseases is linked to climate change and loss of natural predators.
Xylella poses a significant risk to various tree species, particularly olives and grapes.
Native species should be prioritized in rural areas, while urban areas can accommodate a wider variety of species.
Understanding the life cycles of tree guests can foster respect and acceptance rather than eradication.
Ecosystem management should focus on ecological balance rather than human-centric views.
Education and research are vital for effective biosecurity measures.
Acceptance of tree guests can lead to a richer understanding of biodiversity.
A shift in perspective is necessary to address the challenges posed by invasive species.

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In this episode of Tree Lady Talks, Sharon interviews Zazie Todd, an animal behavior expert, about her book 'Bark' which focuses on understanding and helping fearful, anxious, and reactive dogs. They discuss the outdated training methods that can harm dogs, the importance of recognizing signs of anxiety, and the benefits of positive reinforcement training. Zazie emphasizes the need for dog guardians to understand their pets' emotions and the various causes of fear and anxiety, including genetics and early experiences. The conversation also covers practical tips for managing separation anxiety, the role of medication, and the significance of routine in a dog's life. Zazie encourages dog owners to seek help from professionals and highlights the ongoing research in animal behavior that continues to enhance our understanding of dogs as sentient beings. 

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Summary

In this episode of Tree Lady Talks, Sharon discusses the transformative 3-30-300 rule with experts Cecil Konijnendijk and Dirk Voets. They explore the importance of urban greening, the scientific methodology behind the rule, and its global impact on city planning and public health. The conversation highlights community engagement, the challenges faced by urban foresters, and the need for innovative funding mechanisms to support green initiatives. The episode concludes with a vision of a greener future where nature and urban life coexist harmoniously.

Takeaways

The 3-30-300 rule emphasizes 30% canopy cover and 300 meters to green spaces.
Urban greening is essential for public health and climate adaptation.
Satellite imagery is used to assess tree coverage and park accessibility.
Community engagement is crucial for successful urban forestry initiatives.
Cities like Manchester are leading examples of livable urban environments.
The 3-30-300 rule has gained traction internationally, influencing policy.
Cultural sensitivities must be considered in urban planning.
Quantifying ecosystem services is vital for demonstrating the benefits of trees.
Funding mechanisms need to be restructured to support urban greening.
Retrofitting cities can create more green spaces despite existing infrastructure.

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Summary

This conversation explores the intricate politics surrounding street trees, focusing on their historical significance, community engagement, and the ongoing challenges in urban forestry. Camilla Allen, a landscape architect and environmental historian, discusses the Sheffield street tree crisis, the role of trees as living memorials, and the importance of public advocacy and education in tree management. The dialogue emphasizes the need for collaboration between professionals and communities to ensure the sustainable future of urban trees. Relevant papers, as Camilla touched on regarding the sycamore gap, are here 

Crow, Jim ‘The tale of a tree: An archaeological history of Sycamore Gap’, Current Archaeology, December 2023

Ferguson, Bruce K. ‘Symbolic meanings of ordinary city streets and their trees’ Frontiers in Psychology 2023

Hanscam, Emily and Holtorf, Cornelius ‘Rooted in the Future, A cultural ecology of the Sycamore Gap Tree’ Current Archaeology, December 2023.

Chapters Rough Timings

00:00 Introduction to the Politics of Street Trees
02:46 Sheffield's Street Tree Crisis
05:53 Historical Perspectives on Tree Planting
09:02 The Multifaceted Role of Trees
11:49 Living Memorials and Their Significance
18:00 The Politics of Tree Management
23:58 Community Engagement and Tree Advocacy
29:50 Cultural Significance of Trees
36:02 The Future of Street Trees
41:50 The Charter for Street Trees

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In this conversation, Sharon interviews Jaroslav Kolarik, CEO of SafeTrees and member of the Arboriculture Academy in the Czech Republic. They discuss the role of the European Arboriculture Council (EAC) in promoting arboriculture in Europe and the certification programs offered by the EAC. They also talk about the importance of certification for arborists and the challenges of raising awareness and understanding of arboriculture among the general public. They touch on the development of European Arboriculture Standards and the upcoming conference in Prague. They also discuss the tree assessment and tree value calculation standards and the need for a unified approach to tree care. The conversation discusses the importance of valuing trees and the challenges in calculating their value. It emphasizes the need to consider the eco-benefits, property value, replacement value, wildlife value, and ecosystem value of trees. The conversation also touches on the role of municipalities in decision-making and the irreplaceable nature of trees. The interviewee highlights the importance of proper tree assessment and the need to consider the age structure, species structure, and maintenance history of trees. The conversation also explores the concept of canopy cover and the challenges of tree planting and aftercare. The interviewee shares insights into the arboricultural scene in the Czech Republic, including the strict legislation around tree felling and the growing number of arborists, including women, in the industry. The interview concludes with a discussion on the ambition of the European Arboricultural Council to spread the standards and promote tree care at a higher level.

Sound Bites

• "EAC was created to increase the level of Arboriculture in Europe and the first products were certification programs, European tree worker and European tree technician."
• "Certification is necessary to choose qualified companies or individuals for tree care work, especially when larger financial amounts are invested."
• "The certification for veteran tree specialist is a jewel among arboriculture qualifications, focusing on the care of irreplaceable old trees and the ecosystems connected to them."
• "In our cities, mostly in the cities in southern part of Europe without trees we are not going to survive really in the cities."
• "Just imagine that if we just consider the tree being represented only by let's say some replacement value but the replacement itself is going to happen within 60 years."
• "The first questions should not be about the value, about the money because that's only the last resort how to express the value of the trees."

Chapters

00:00
Introduction and Background

04:06
Promoting Arboriculture in Europe: The Role of the European Arboriculture Council

06:28
The Importance of Certification for Arborists

12:09
Developing European Arboriculture Standards

19:26
Understanding Tree Assessment

25:32
Valuing Trees Beyond Replacement Cost

27:18
Valuing Trees: Eco-Benefits and Property Value

28:47
Challenges in Tree Valuation and Replacement Value

31:13
Considerations for Proper Tree Assessment

32:43
Canopy Cover: Visualizing Tree Presence

45:14
Challenges and Best Practices in Tree Planting and Aftercare

50:28
The Growing Arboricultural Scene and Diversity in the Czech Republic

53:11
Spreading Tree Care Standards Across Europe

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Built and natural environments are often referred to independently, but in reality, comprise two defined parts of one environment. Within the environment, trees and buildings exist, though not always in equal relationships. Where development is proposed, taking precedence over trees, an imbalance between natural and built environments may occur. This could be the result of tree- building conflict often resulting in tree removal. Where architects are creators of the built environment, there is a professional responsibility to consider the wider environmental context impacted by development and also the contributing benefit that trees offer to the environment.
In this episode, Sharon interviews Dr. Gary Wynn, an innovative architect and arboriculturalist. Gary shares his journey of becoming an arboriculturalist and the lack of tree knowledge among architects. He discusses his research on the relationship between trees and buildings and the need for architects to have arboricultural knowledge. Gary also talks about his architectural philosophy, inspired by Frank Lloyd Wright, and the importance of seeing the world as a connected system. He shares a case study of a building he designed near trees and the engineering considerations involved. The conversation ends with a discussion on the tension between the benefits of trees and the challenges they pose in urban areas. Dr. Gary Winn discusses the successful relationship between trees and buildings, highlighting the benefits, challenges, and innovative design solutions. He emphasizes the need for architects and arboriculturists to collaborate and integrate tree considerations into the design process. Dr. Winn shares his research findings, which show that architects often lack knowledge about trees and perceive them as obstacles. However, through workshops and practical exercises, architects can learn to prioritize the tree-building relationship and create innovative designs that incorporate trees. He also discusses the importance of public perception, policy changes, and the role of well-being in the tree-building relationship. Link to the Invisible House Youtube video promo

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In this conversation, Jules Acton discusses her book 'Oaklore' and her journey into the world of nature conservation. She shares her experiences of visiting a nature reserve for the first time and the barriers people may face when trying to engage with nature. Jules emphasizes the importance of creating openings and ways for people to connect with nature. She also talks about her childhood experiences with nature, including a special apple tree in her garden. Jules explores the world of oak trees, including the birds and insects that depend on them. She shares her journey of learning bird songs and the joy of discovering new species. Jules also discusses the cultural significance of oak trees, such as the use of oak gall ink and the celebration of Oak Apple Day. She highlights the importance of awe and shared experiences in connecting with nature. Jules recounts her experiences on a moth night and the beauty of moths. She also explores the world of beetles and the importance of dead wood in supporting their habitats. The conversation concludes with a discussion about the Medusa Oak and the quirks of quercuses. In this part of the conversation, Jules Acton and Sharon discuss various topics related to oak trees and their conservation. They talk about the work of the Woodland Trust and the RSPB in managing and preserving oak trees. They also discuss the concept of veteranization, which involves aging trees prematurely to create habitat for specialized species. They touch on the folklore and magic associated with oak trees, including the myth of summoning the devil by dancing around a certain oak tree. They also explore the mutualistic relationship between trees and fungi, highlighting the importance of fungi in providing nutrients and water to trees. They discuss the challenges of acute oak decline and the need for better decision-making and infrastructure planning to protect and preserve oak trees. They emphasize the importance of creating space for nature and promoting connectivity in urban environments. Jules encourages listeners to join conservation organizations and get involved in the preservation of oak trees and nature in general.

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In this episode, Sharon and Callum discuss the use of AI and technology in the arboriculture industry. Callum explains that AI has been around for decades and has been used in various applications, such as loan applications and predictive text. In the forestry industry, AI has been used for mapping deforestation and monitoring pests and diseases. Callum emphasizes the importance of training AI models to get the desired output and highlights the need for social responsibility in shaping AI. He also shares how he uses AI in his daily work as an arboriculture consultant, including keyword research, report writing, and pricing jobs. In this part of the conversation, Callum discusses the use of Chat GPT, photogrammetry, and virtual reality (VR) in arboriculture. He explains how Chat GPT can assist in generating reports and providing structure, while still requiring human input for analysis and assessment. Callum also highlights the ethical concerns of making GPT publicly accessible. He then delves into the concept of photogrammetry, explaining how it works and the benefits of using apps like Polycam to create 3D models of trees. He emphasizes the importance of hosting these models on online platforms for easy access. Callum then explores the potential of VR and augmented reality (AR) in arboriculture, particularly in training and education. He discusses the immersive experience of VR and its ability to improve knowledge retention. Lastly, Callum touches on the limitations and benefits of using drones for tree surveys, including the accurate mapping of trees in the absence of graphical surveys. Drones equipped with multispectral cameras can be used for NDVI (Normalised Difference Vegetation Index) to identify stressed or low vitality trees. They are valuable for ash dieback surveys, identifying trees in distress, and conducting feasibility studies. Drones can also be used for creating 3D models of sites, providing better context than traditional maps. Leveraging social media, particularly platforms like TikTok, can help attract younger people to the industry. Authentic and engaging content that adds value is key. AI and apps have the potential to scan trees and identify defects, as well as generate detailed weather forecasts for the arboricultural industry. Immersive videos and virtual reality can be used to showcase different aspects of the industry and attract young talent.

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In this bonus episode of Tree Lady Talks, Sharon discusses the revision of the British standard for trees and construction, BS 5837. She interviews Howard Booth, the chair of the committee proposing the changes, to discuss the main updates. The changes include new process flow charts, a new categorization method, adjustments to root protection areas, and the inclusion of canopy cover assessments. The goal of these changes is to ensure better tree care and development practices. The episode provides valuable insights into the proposed revisions and their implications. The conversation explores various parameters and considerations for tree growth, including species, form, site conditions, and pruning requirements. The British standard for tree retention and the importance of tree surveys conducted by arboriculturalists are discussed. The conversation also touches on the proposed changes in the British standard for tree surveys (BS 5837) and the inclusion of canopy cover assessments. The revision introduces new plans, such as the Arboricultural Impact Plan and the Constraints and Opportunities Plan. The categorization of trees is expanded to include a new category for veteran trees (Category V). Root protection areas for veteran trees are set to increase, and dead trees will also have a level of protection. The consultation process for the revision is highlighted, encouraging listeners to participate and provide feedback.

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The conversation explores the complexities and challenges of implementing biodiversity net gain (BNG) in the UK. The discussion covers topics such as tree replacement, the definition of veteran trees, the role of arboriculturalists in BNG assessments, the emphasis on planting native trees, the mitigation of tree group losses, and the need for additional protection for habitats like peat soils. The conversation also touches on the importance of monitoring and compliance in ensuring the success of BNG projects.

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