期刊
NATURE COMMUNICATIONS
卷 9, 期 -, 页码 -出版社
NATURE PUBLISHING GROUP
DOI: 10.1038/s41467-017-02446-8
关键词
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资金
- BBVA Foundation Grant for Researchers and Cultural Creators
- Autonomous National Parks Organization of the Spanish Ministry for the Environment, Rural and Marine Affairs [041/2010]
- CRETUS strategic group [AGRUP2015/02]
- FPU Programme of the Spanish Ministry of Education and Innovation
Seabirds drastically transform the environmental conditions of the sites where they establish their breeding colonies via soil, sediment, and water eutrophication (hereafter termed ornitheutrophication). Here, we report worldwide amounts of total nitrogen (N) and total phosphorus (P) excreted by seabirds using an inventory of global seabird populations applied to a bioenergetics model. We estimate these fluxes to be 591 Gg N y(-1) and 99 Gg P y(-1), respectively, with the Antarctic and Southern coasts receiving the highest N and P inputs. We show that these inputs are of similar magnitude to others considered in global N and P cycles, with concentrations per unit of surface area in seabird colonies among the highest measured on the Earth's surface. Finally, an important fraction of the total excreted N (72.5 Gg y(-1)) and P (21.8 Gg y(-1)) can be readily solubilized, increasing their short-term bioavailability in continental and coastal waters located near the seabird colonies.
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