The term "precision agriculture" has high-tech and “big ag.” connotations, and is usually not associated with biodiversity. But there is a strong argument to be made that it is one of the best things that has happened to conservation in recent decades. Agriculture remains the biggest driver of biodiversity loss in most parts of the world, so anything that reduces its impact might be worth taking note of.

Mark McConnell, an assistant professor at Mississippi State University, joins us on this episode to explain why precision agriculture is a boon for conservation. We also talk about the accompanying concept of precision conservation, which he has been promoting, as well as the old “land sharing versus land sparing” debate. For listeners unfamiliar with that debate, check the podcast notes for a couple of key references, as well as some of Mark’s work.

Links to resources:

• What conservationists need to know about farming - early (2012) paper by Balmford and co-authors on the land sharing versus land sparing debate
• Precision Conservation to Enhance Wildlife Benefits in Agricultural Landscapes - 2017 book chapter by Mark and a co-author
• Gamebird University - Mark's podcast

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The concept of biodiversity loss is absolutely integral to conservation, and I have never met anyone who has seriously challenged the idea that too many species are going extinct, nor that their extinction is a result of human pressures. So, what do we make of multiple studies telling us that we shouldn’t be focusing so much on biodiversity loss? These studies say that, on average in samples across the world, roughly equal numbers of sites are increasing in species richness and decreasing.

Maria Dornelas is the ecologist, from the University of Lisbon and the University of St Andrews, at the centre of this research and she joins me to elaborate. It should be mentioned right at the start that Maria is not suggesting that biodiversity loss is not a problem, but she explains why she thinks we are doing conservation a disservice by focusing on it the way we do. Maria emphasized the importance of nuance in conversations about conservation, and this discussion is an illustration of the importance of avoiding too much generalization and simplification.

Links to resources:

• Looking back on biodiversity change: lessons for the road ahead - 2023 article by Maria and colleagues.
• Assemblage Time Series Reveal Biodiversity Change but Not Systematic Loss - Maria's 2014 paper in Science, which announced the surprising results of her research.
• BioTIME - Global database of assemblage time series for quantifying and understanding biodiversity change.
• Inside Biodiversity - Related IDIV podcast that is referenced in the intro to this episode.

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Although we all have our problems, war is usually not among them. But if you do live in a war-torn country like Ukraine, war is everyones’s problem. And yet, in Ukraine at least, somehow life goes on including activities like conservation of the environment. The question is how, and why, given the many, more urgent, priorities.

Marine Elbakidze is an Associate Professor at Lviv University, who focuses on sustainable landscape management, forest governance, and the social-ecological systems approach to environmental conservation. A year and a half ago she left a comfortable job in Sweden to return to Ukraine and practice her profession in her home country despite its ongoing war.

Links to resources

• Understanding the impact of the war on people-nature relationships in Ukraine - An article that Marine recently published in the journal, Ecosystem Services, which is in line with the discussion.

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