Wednesday, October 28, 2015

As large animals disappear, the loss of their poop hurts the planet

It only takes a glance at a history book and a look out the window to know that our planet has lost many of its biggest creatures: The world that was once home to mammoths and towering dinosaurs can now barely maintain stable populations of rhinos and whales. But according to a new study, we've got more to mourn than just the animals themselves. We've lost their feces, too — and that's a bigger problem than you might think. Why should we miss steaming piles of dinosaur dung? According to research published Monday in the Proceedings of the National Academy of Sciences, megafauna play a greater role in the spread of nutrients across the planet than scientists ever realized. The research focused on modeling the distribution of phosphorus, a nutrient necessary for fertilizing plant growth. Scientists know that animals help carry these nutrients around by, well, not pooping where they eat. Without this process, nutrients would end up following gravity onto the ocean floor, instead of spreading as high as the mountain tops. But these days most of the nutrient recycling that happens is due to bacteria — not wandering poopers...more

Two things are clear: 1) We have a Dung Distribution Delimma, or if you prefer, a Poop Production Problem, and 2) Every time the Forest Service or BLM cuts the number of cattle they are harming the planet. 

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