Quantifying the interactions between functional diversity and environmental change is important for understanding the effects of biodiversity on ecosystem processes. This study aims to evaluate zooplankton secondary production and biomass in an experiment with different levels of functional diversity and environmental stress in the form of increased salinity. It is expected that communities that are more functionally diverse will present higher secondary production and biomass, even under conditions of environmental stress. To test this hypothesis, a mesocosm experiment with two factors was performed: low and high diversity and with and without salt totaling four possible combinations of treatments over the duration of 4 weeks. The high functional diversity treatments showed higher zooplankton secondary production and biomass than those of the low diversity treatments, even under salt addition. The salinity decreased zooplankton production and functional diversity, but its effects were more pronounced in the low than in the high diversity communities. However, in the low diversity treatments the zooplankton biomass and production were maintained due to the dominance of species with certain traits. In summary, our study contributed to understanding the role of zooplankton functional diversity on ecosystem processes in the face of environmental changes promoted by increased salinity.

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功能多样性和盐渍化对浮游动物生产力的影响：一种实验方法

量化功能多样性与环境变化之间的相互作用对于理解生物多样性对生态系统过程的影响非常重要。本研究旨在通过不同水平的功能多样性和盐度增加形式的环境压力来评估浮游动物的二次生产和生物量。预计即使在环境压力条件下，功能更加多样化的群落也将呈现更高的二次生产和生物量。为了验证这一假设，进行了具有两个因素的中宇宙实验：低多样性和高多样性以及在 4 周的持续时间内总共有四种可能的治疗组合。高功能多样性处理显示出比低多样性处理更高的浮游动物二次生产和生物量，即使在加盐情况下也是如此。盐度降低了浮游动物的产量和功能多样性，但其影响在低多样性群落中比在高多样性群落中更为明显。然而，在低多样性处理中，由于具有某些特征的物种的优势，浮游动物生物量和产量得以维持。总之，我们的研究有助于理解浮游动物功能多样性在盐度增加促进的环境变化中对生态系统过程的作用。但它的影响在低多样性社区比在高多样性社区更为明显。然而，在低多样性处理中，由于具有某些特征的物种的优势，浮游动物生物量和产量得以维持。总之，我们的研究有助于理解浮游动物功能多样性在盐度增加促进的环境变化中对生态系统过程的作用。但它的影响在低多样性社区比在高多样性社区更为明显。然而，在低多样性处理中，由于具有某些特征的物种的优势，浮游动物生物量和产量得以维持。总之，我们的研究有助于理解浮游动物功能多样性在盐度增加促进的环境变化中对生态系统过程的作用。