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Everyone has their limits: reproductive mode drives amphibian responses to land use in coastal areas
Marine and Freshwater Research ( IF 1.8 ) Pub Date : 2020-01-01 , DOI: 10.1071/mf20102
Leonardo F. B. Moreira , Jéssica B. da Silva , Débora S. Knauth , Soraya Ribeiro , Leonardo Maltchik

Small wetlands are strongly bound to surrounding terrestrial habitats, so understanding their suitability after conversion to human land uses is critically important to produce an ecologically centred planning for amphibian species. Here, we explored how responses of amphibian assemblage to habitat conversion were influenced by reproductive modes in freshwater coastal wetlands in southern Brazil. We also assessed whether species from different biomes are affected in different ways by land conversion. Using data from tadpole assemblages in a transition zone between Atlantic Forest and Pampa, we tested the hypothesis that aquatic modes would be more affected by habitat conversion than are foam-nest species. Overall, quantitative data were influenced by the percentage of crop area, whereas assemblage structure derived from presence–absence data was associated with biome type. Species with aquatic egg-laying were influenced by the percentage of crop area, and many species were more abundant in ponds surrounded by up to 15% crop area in a 1000-m radius. However, foam-nest species were not influenced by any variable investigated (crops, planted pastures, urban areas and biome). This study has highlighted that agricultural conversion poses environmental filters to amphibian communities, selecting species according to some traits (adult reproductive strategies and tadpole plasticity).

中文翻译:

每个人都有其局限性:繁殖模式推动两栖动物对沿海地区土地利用的反应

小型湿地与周围的陆地栖息地密切相关,因此了解它们在转化为人类土地用途后的适宜性对于制定以生态为中心的两栖动物物种规划至关重要。在这里,我们探讨了巴西南部淡水沿海湿地的繁殖模式如何影响两栖动物组合对栖息地转换的反应。我们还评估了来自不同生物群落的物种是否受到土地转换的不同影响。使用大西洋森林和潘帕草原之间过渡区的蝌蚪组合数据,我们检验了水生模式比泡沫巢物种更受栖息地转换影响的假设。总体而言,定量数据受作物面积百分比的影响,而源自存在-不存在数据的组合结构与生物群落类型相关。水生产卵的物种受作物面积百分比的影响,许多物种在 1000 米半径内被高达 15% 的作物面积包围的池塘中更为丰富。然而,泡沫巢物种不受任何调查变量(作物、种植牧场、城市地区和生物群落)的影响。这项研究强调了农业转化对两栖动物群落构成了环境过滤器,根据某些特征(成年繁殖策略和蝌蚪可塑性)选择物种。泡沫巢物种不受任何调查变量(作物、种植牧场、城市地区和生物群落)的影响。这项研究强调了农业转化对两栖动物群落构成了环境过滤器,根据某些特征(成年繁殖策略和蝌蚪可塑性)选择物种。泡沫巢物种不受任何调查变量(作物、种植牧场、城市地区和生物群落)的影响。这项研究强调了农业转化对两栖动物群落构成了环境过滤器,根据某些特征(成年繁殖策略和蝌蚪可塑性)选择物种。
更新日期:2020-01-01
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