According to the description of nutrient availability, what type of relationship is often observed with algal or terrestrial plant species diversity?

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The relationship between nutrient availability and algal or terrestrial plant species diversity is often characterized as negative. This means that as nutrient availability increases, species diversity tends to decrease. This phenomenon is connected to the idea of competitive exclusion, where in nutrient-rich environments, a few species may dominate, outcompeting others for resources. High nutrient concentrations can lead to conditions that favor fast-growing species, often resulting in lower overall diversity because those species can monopolize resources, leaving less space and fewer resources for slower-growing or more specialized species. This dynamic is frequently observed in various ecosystems, underscoring the importance of nutrient balance in maintaining biodiversity.