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Historical variation in guano production from the Peruvian and Benguela upwelling ecosystems |
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| Authors: | David Schneider David Cameron Duffy |
| Institution: | (1) Newfoundland Institute for Cold Ocean Science, Memorial University, St. John's, Nfld, Canada;(2) Percy FitzPatrick Institute of African Ornithology, University of Capetown, 7700 Rondebosch, South Africa;(3) Programa Regional de Vida Silvestre para Mesoamerica y El Caribe, Escuela de Ciencias Ambientales, Universidad National, Heredia, Costa Rica |
| Abstract: | Analysis of the historical record shows that reductions in guano production in the eastern tropical Atlantic Ocean were not related to El Niño events in the Pacific. Guano production in the Atlantic was negatively correlated with guano production in the Pacific. Significant reductions in guano production in the Atlantic occurred 1 to 4 years after increases in guano production in the Pacific. Negative association is consistent with the hypothesis that global shifts in weather associated with the Southern Oscillation affect guano production. |
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