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A Regional Perspective on the Diversity and Conservation of Tropical Andean Fishes

机译：热带安第斯鱼类多样性和保护的区域视角

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摘要

Abstract: The tropical Andes harbor an extraordinarily varied concentration of species in a landscape under increasing pressure from human activities. Conservation of the region's native plants and animals has received considerable international attention, but the focus has been on terrestrial biota. The conservation of freshwater fauna, particularly the conservation of fishes, has not been emphasized. Tropical Andean fishes are among the most understudied vertebrates in the world. We estimate that between 400 and 600 fish species inhabit the diverse aquatic environments in the region. Nearly 40% of these species are endemic. Tropical Andean fishes are vulnerable to ongoing environmental changes related to deforestation, water withdrawals, water pollution, species introductions, and hydropower development. Additionally, their distributions and population dynamics may be affected by hydrologic alterations and warmer water temperatures associated with projected climate change. Presently, at least three species are considered extinct, some populations are endangered, and some species are likely to decline or disappear. The long-term persistence of tropical Andean fishes will depend on greater consideration of freshwater systems in regional conservation initiatives.
机译：摘要：在人类活动增加的压力下，热带安第斯山脉的景观中物种的浓度异常变化。保护该地区的本地动植物受到了国际社会的广泛关注，但重点一直放在陆地生物群系上。没有强调保护淡水动物区系，特别是鱼类。热带安第斯鱼类是世界上被忽视的脊椎动物之一。我们估计该地区的水生环境栖息着400至600种鱼类。这些物种中近40％是地方性的。热带安第斯鱼类容易受到与森林砍伐，取水，水污染，物种引进和水电开发有关的持续环境变化的影响。此外，它们的分布和人口动态可能会受到与预估气候变化有关的水文变化和水温升高的影响。目前，至少有三种物种被认为已灭绝，某些种群处于濒危状态，有些物种可能会减少或消失。热带安第斯鱼类的长期存续将取决于区域保护举措中对淡水系统的更多考虑。

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