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首页> 外文期刊>Estuarine Coastal and Shelf Science >A comparison of Colombian Pacific mangrove extent estimations: Implications for the conservation of a unique Neotropical tidal forest
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A comparison of Colombian Pacific mangrove extent estimations: Implications for the conservation of a unique Neotropical tidal forest

机译：哥伦比亚太平洋红树林范围估计的比较：对独特的新热带潮汐森林的保护意义

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摘要

Environmental conservation, management, and policy rely on accurate scientific information and interpretation. Dramatic numbers related to the decline of a natural resource often get the attention of the media, and even the scientific community, and propagate through to wider society. Such headline-generating reporting of dramatic environmental loss scenarios can confuse and may result in poor decision making related to the application of funding priorities and policies driven by concerned scientists, environmental groups, and the public. Here we analyze the historical and current estimations of mangrove cover of a relatively pristine mangrove area of the Neotropics along the Colombian Pacific coast. Our comparison reveals highly differing estimates of mangrove coverage based on the methods used since the 1960's. As opposed to what is commonly claimed by some studies, and the media, mangrove cover in this region has likely remained relatively stable, at least over the last 15-years. Estimates constructed between 1966 and 1992 likely overestimate mangrove area due to the lack of high-resolution delineation methods, such as satellite imagery, and a lack of robust defined methodologies. Mangroves along the Pacific coast of Colombia, despite localized losses, likely remain one of the most well preserved tidal forests of the Neotropics. Future analyses of mangrove in this region need to treat with caution earlier estimates of mangrove cover that are likely overestimates based on dated technologies and undefined methodologies.
机译：环境保护，管理和政策依靠准确的科学信息和解释。与自然资源减少有关的戏剧性数字常常引起媒体甚至科学界的关注，并传播到更广泛的社会。这种对重大环境损失情况的标题报道可能会造成混乱，并可能导致与有关科学家，环境团体和公众所推动的资金优先事项和政策的应用有关的决策不力。在这里，我们分析了哥伦比亚太平洋沿岸新热带地区相对原始的红树林地区的红树林覆盖率的历史和当前估计。我们的比较显示，根据1960年代以来使用的方法，对红树林覆盖率的估算存在很大差异。与某些研究和媒体通常所宣称的相反，至少在过去的15年中，该地区的红树林覆盖率一直保持相对稳定。 1966年至1992年之间建立的估算值可能由于缺乏高分辨率的描绘方法（例如卫星图像）和缺乏可靠的定义方法而高估了红树林面积。尽管局部损失，哥伦比亚太平洋沿岸的红树林仍可能是新热带地区保存最完好的潮汐森林之一。对该地区的红树林进行进一步的分析时，应谨慎处理较早的红树林覆盖率估计值，这些估计值可能基于过时的技术和未定义的方法被高估了。

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