Scaling the extinction vortex: Body size as a predictor of population dynamics close to extinction events

Nathan Williams, Louise McRae, Robin Freeman, Pol Capdevila & Christopher Clements
Mutual reinforcement between abiotic and biotic factors can drive small populations into a catastrophic downward spiral to extinction – a process known as the ‘extinction vortex.’ However, empirical studies investigating extinction dynamics in relation to species’ traits have been lacking. We assembled a database of 35 vertebrate populations monitored to extirpation over a period of at least ten years, represented by 32 different species, including 25 birds, five mammals and two reptiles. We supplemented these...
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These counts follow the COUNTER Code of Practice, meaning that Internet robots and repeats within a certain time frame are excluded.
What does this mean?