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New study suggests wildlife may be answer to phosphorus crisis

New study suggests wildlife may be answer to phosphorus crisis

Modern agriculture is underpinned by a steady supply of fertilizer. However, one of the main ingredients of fertilizer, phosphorus, is runni

phys.org

“In the past, animals such as whales, sea birds, fish and bears played a key role in returning phosphorus from ocean depths back onto land,” Abraham said. “In doing so, they collectively retained this nutrient in the biosphere, supporting a more fertile planet. Today, however, species extinctions, diminished population abundances and the erection of fences and dams have reduced this nutrient transport service by more than 90 percent.”

“Through our research, we were able to show that historically, wild animals transported a large amount of phosphorus that is on par with other important flows such as dust deposition and wildfires,” Abraham said. “Importantly though, wildlife can return phosphorus back to the land. By restoring interconnected animal communities, ancient pathways of natural fertilization can be revitalized, helping to conserve an irreplaceable element.”