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首页> 外文期刊>Proceedings of the National Academy of Sciences of the United States of America >Small-scale field experiments accurately scale up to predict density dependence in reef fish populations at large-scales
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Small-scale field experiments accurately scale up to predict density dependence in reef fish populations at large-scales

机译：小规模的野外实验可以准确地按比例放大以预测大范围内礁鱼种群的密度依赖性

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摘要

Field experiments provide rigorous tests of ecological hypotheses but are usually limited to small spatial scales. It is thus unclear whether these findings extrapolate to larger scales relevant to conservation and management. We show that the results of experiments detecting density-dependent mortality of reef fish on small habitat patches scale up to have similar effects on much larger entire reefs that are the size of small marine reserves and approach the scale at which some reef fisheries operate. We suggest that accurate scaling is due to the type of species interaction causing local density dependence and the fact that localized events can be aggregated to describe larger-scale interactions with minimal distortion. Careful extrapolation from small-scale experiments identifying species interactions and their effects should improve our ability to predict the outcomes of alternative management strategies for coral reef fishes and their habitats.
机译：野外实验对生态学假设进行了严格的检验，但通常仅限于较小的空间尺度。因此，尚不清楚这些发现是否外推到与保护和管理有关的更大范围。我们表明，检测小栖息地斑块上依赖密度的死亡率的礁石鱼的实验结果扩大到对更大的整个礁石（即小型海洋保护区的大小）具有相似的影响，并且接近某些礁石渔业的经营规模。我们建议精确的缩放比例是由于物种相互作用的类型引起局部密度依赖性，并且可以聚集局部事件以描述具有最小失真的更大规模相互作用的事实。从小规模实验中仔细地推断出物种之间的相互作用及其影响，应该可以提高我们预测珊瑚礁鱼类及其栖息地替代管理策略结果的能力。

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