Data from: Seabird presence and seasonality influence nutrient dynamics of atoll habitats

In this study, we investigate nutrient dynamics linked to seabird presence and seasonality. We compare seabird colonies of different taxa nesting on separate islands of Farquhar Atoll, Seychelles. We first quantify guano nutrient input and guano nitrogen isotopes for each seabird species. We assess the transfer of seabird-derived nutrients in terrestrial and marine habitats by comparing nitrogen isotope values in soil, plants, and seagrass on each seabird island and a control island, during the wet and dry seasons. We then assess the influence of seabirds by comparing nutrient levels in soil, plants, and seagrass on each seabird island and a control island, during the wet and dry seasons. For plants and seagrass, we also assess and compare nutrient ratios and carbon stable isotope ratios on each seabird island and a control island, during the wet and dry seasons.

本研究旨在探究与海鸟活动及季节节律相关的养分动态。我们以塞舌尔法夸尔环礁各独立岛屿上筑巢的不同分类群海鸟群落为研究对象。首先，我们量化各海鸟物种的鸟粪养分输入量及其氮同位素特征。随后，我们通过对比雨季与旱季各海鸟栖息岛及对照岛的土壤、植物与海草的氮同位素值，评估海鸟源性养分在陆地与海洋生境中的迁移过程。此外，我们还将在上述两个季节时段下，对比各海鸟栖息岛与对照岛的土壤、植物及海草的养分含量，以此评估海鸟的生态影响。针对植物与海草，我们亦会在相同季节条件下，对比分析其养分比值与碳稳定同位素比值。