Rufa red knot background information and threats assessment
Red knots face a wide range of threats across their range on multiple geographic and temporal scales. The effects of some smaller threats may act in an additive fashion to ultimately impact populations or the subspecies as a whole (cumulative effects). Other threats may interact synergistically to i...
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2014
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| Online Access: | https://dx.doi.org/10.7282/t36m38js https://rucore.libraries.rutgers.edu/rutgers-lib/46245/ |
| Summary: | Red knots face a wide range of threats across their range on multiple geographic and temporal scales. The effects of some smaller threats may act in an additive fashion to ultimately impact populations or the subspecies as a whole (cumulative effects). Other threats may interact synergistically to increase or decrease the effects of each threat relative to the effects of each threat considered independently (synergistic effects). For example, reduced food availability has been shown to interact synergistically with asynchronies and several other threats, such as asynchronies, disturbance, predation pressure, and competition with gulls. We conclude that a number of threats are likely contributing to habitat loss, anthropogenic mortality, or both, and thus contribute to the red knot’s threatened status, particularly considering the cumulative and synergistic effects of these threats, and that several key populations of this species have already undergone considerable declines. |
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