Nowadays, when aquatic habitats are threatened by human and climatic disturbances leading to reductions in biodiversity and ecosystem functions, the study of the abundance–occupancy relationships of species traits and their underlying mechanisms is of great importance to future conservation management. To study the distribution patterns of benthic diatom traits, lakes were sampled during the summer and early autumn. Niche breadth, niche position (NP), regional occupancy and local abundances (LAs) of benthic diatom traits and their combinations were determined along different environmental gradients. Benthic diatom traits were identified in all possible niche types (14% non-marginal–narrow, 37% non-marginal–broad, 8% marginal–narrow and 41% marginal–broad niche). On the basis of increased niche differentiation, it is possible to achieve an improved and more effective utilization of the eco-morphological concept of diatom traits. The relationships between the occupancy, abundance and niche characteristics suggest that the broader the niche, the wider the distribution and the greater the LA; the more marginal the NP, the more restricted spatially the distribution and the lower the LA. With regard to the key factors driving the occupancy of benthic diatom traits in lentic ecosystems, the NP hypothesis proves to be the best predictor of its variation.

中文翻译：

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实现了基于生态位的底栖硅藻性状的占有-丰度模式

如今，当水生栖息地受到人类和气候干扰导致生物多样性和生态系统功能减少的威胁时，研究物种特征的丰度-占有关系及其潜在机制对未来的保护管理具有重要意义。为了研究底栖硅藻性状的分布模式，在夏季和初秋对湖泊进行了采样。底栖硅藻性状及其组合的生态位宽度、生态位位置 (NP)、区域占有率和局部丰度 (LA) 是沿着不同的环境梯度确定的。在所有可能的生态位类型中都确定了底栖硅藻性状（14% 非边缘-窄、37% 非边缘-宽、8% 边缘-窄和 41% 边缘-宽生态位）。在增加生态位分化的基础上，可以更好地和更有效地利用硅藻性状的生态形态概念。占有率、丰度和生态位特征之间的关系表明，生态位越广，分布越广，LA越大；NP 越边缘，分布的空间限制越多，LA 越低。关于驱动静水生态系统中底栖硅藻性状占有的关键因素，NP假设被证明是其变化的最佳预测因子。分布在空间上越受限制，LA 越低。关于驱动静水生态系统中底栖硅藻性状占有的关键因素，NP假设被证明是其变化的最佳预测因子。空间分布越受限制，LA 越低。关于驱动静水生态系统中底栖硅藻性状占有的关键因素，NP假设被证明是其变化的最佳预测因子。