Abstract
A Human Taste for Rarity Spells Disaster for Endangered Species
Highlights
Most governments around the world set conservation policy based on the assumption that resource exploitation and species protection can co-exist in the same place
Before suction dredging began in the 1960s, an estimated 2,000 tons of cockles were handharvested from the reserve each year
The entorhinal cortex, a region with strong reciprocal connections with the hippocampus, exhibited a different pattern of neural activation consistent with a more general response to sequence novelty. These findings provide empirical support for the view that the hippocampus plays a critical role in storing representations of event sequences and, in replaying entire stored sequences in response to a partial input cue
Summary
Most governments around the world set conservation policy based on the assumption that resource exploitation and species protection can co-exist in the same place. As expected, when prey quality declined, birds needed larger gizzards to process the relatively higher proportion of shells in their diet Their chances of surviving conditions at the Wadden Sea increased as a function of prey quality and gizzard flexibility. A much greater proportion would survive if their gizzard could expand by at least 1 gram (70% for 1 gram, 88% for 2 grams) These degraded food conditions, the authors conclude, explains why red knot populations have declined by 80% in the Wadden Sea. And increased mortality in the Wadden Sea—which the authors estimate at 58,000 birds over five years—accounts for the 25% decline of red knots across their entire northwest European wintering grounds.
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