This book provides, for the first time, a comprehensive overview of the fundamental roles that ecological interactions play in extinction processes, bringing to light an underground of hidden pathways leading to the same dark place: biodiversity loss.We are in the midst of the sixth mass extinction. We see species declining and vanishing one after another. Poached rhinos, dolphins and whales slaughtered, pandas surviving only in captivity are strong emotional testimonials of what is happening. Yet, the main threat to natural communities may be overshadowed by the disappearance of large species, with most extinctions happening unnoticed and involving less eye-catching organisms, such as parasites and pollinators. Ecosystems hide countless, invisible wires connecting organisms in dense networks of ecological interactions. Through these networks, perturbations can propagate from one species to another, producing unpredictable effects. In worst case scenarios, the loss of one species might doom many others to extinction. Ecologists now consider such mechanisms as a fundamental - and still poorly understood - driver of the ongoing biodiversity crisis. Hidden Pathways to Extinction makes the invisible links connecting the fates of species and organisms evident, exploring why complexity can enhance ecosystem stability and yet accelerate species loss. Page after page, Strona provides convincing evidence that we are primarily responsible for the fall in biodiversity, that we are falling too, and that we need to redouble our conservation efforts now, or it won't be long before we hit the ground.




Giovanni Strona (Italy, 1982) is an Associate Professor in Ecological Data Sciences at the University of Helsinki. His research lies at the interface between ecology, computer science and physics. He has published tens of influential scientific papers on macroecology and biodiversity research, with novel insights in theory and methods. In recent years, he has advanced our understanding of the role of ecological interactions in the ongoing mass extinction, quantifying the relative impact of co-extinctions on global biodiversity loss. His findings identify key ecological mechanisms that might dramatically amplify global change's detrimental effects and reveal how a planetary ecosystem collapse might be much closer than we thought.