nutrient
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Earth
Volcanic ash as a nutrient source: the impact of the Hunga Tonga eruption on the South Pacific ecosystem
GEOTRACES GP21 cruise track and Hunga Tonga Hunga Ha’apai (HTHH) volcanic eruption scattering volcanic ash. Credit: Nature Communications (2024). DOI: 10.1038/s41467-024-52904-3 The January 2022 eruption of Hunga Tonga Hunga Ha’apai (HTHH) released approximately 2.9 billion tons of volcanic material into the atmosphere and across the South Pacific. In early 2022, a scientific expedition (GEOTRACES GP21) investigated the impact of this…
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Biology
Insect and spider biodiversity increases organic nutrient availability across ecosystems, large-scale study shows
Sampling locations for aquatic and terrestrial arthropods throughout Switzerland. Credit: Science (2024). DOI: 10.1126/science.adp6198 Insects and spiders are important components of food webs in aquatic and terrestrial ecosystems. As an international research team led by Ehwag and WSL scientists recently demonstrated, as biodiversity declines, food supplies for birds, fish, reptiles, amphibians, and small mammals are not only in short supply,…
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