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Pol Capdevila

@polcapdevila.bsky.social

486 followers 738 following 16 posts

Ecology Lecturer at University of Barcelona. Interested in Quantitative Ecology, Resilience, Global Change, Marine Ecology, and Macroecology. Editor at Journal of Animal Ecology. Views of my own. He/him.

Posts Replies Media

Pol Capdevila @polcapdevila.bsky.social · 12/02/2026

Vertebrate declines are a due to “death by a thousand cuts”, so removing any single threat slows decline but does NOT reverse it. ONLY simultaneous mitigation of multiple threats produces non-negative trends. #BiodiversityPolicy

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Pol Capdevila @polcapdevila.bsky.social · 12/02/2026

Contrary to our initial expectations, most threat interactions are additive (~80–90%), and synergistic effects are rare at the global scale. #Multiplestressors

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Pol Capdevila @polcapdevila.bsky.social · 12/02/2026

Threat interactions explain more variation in population declines than spatial or temporal effects. It’s not just where or when populations are monitored, it’s how multiple pressures act together. #MultipleStressors

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Pol Capdevila @polcapdevila.bsky.social · 12/02/2026

The steepest annual declines are associated with: • Invasive species (~ −6%/yr) • Disease (~ −4.6%/yr) • Climate change (~ −3.1%/yr) • Pollution (~ −1.8%/yr) Impact ranking ≠ prevalence ranking. #GlobalChange

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Pol Capdevila @polcapdevila.bsky.social · 12/02/2026

Habitat loss (27%) and exploitation (31%) are the most common threats. But they are NOT linked to the fastest declines. Rarity of a threat does not mean low impact. #Conservation

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Pol Capdevila @polcapdevila.bsky.social · 12/02/2026

Vertebrate populations are declining worldwide. But which threats are actually driving the steepest declines? A global analysis of 3,129 vertebrate population time series reveals a surprising pattern 🧵👇 #Biodiversity #Ecology

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