Global bias towards recording latitudinal range shifts
摘要
Studies reporting shifts in species distributions may be biased by sampling choices, which can either exaggerate or underestimate range responses to various global changes. Here we demonstrate a geometric bias favouring sampling along latitude, which increases the likelihood of observing latitudinal range shifts as expected under climate warming. A global bias towards studying species redistributions preferentially along warming gradients may veil the true direction and magnitude of range shifts.