Researchers at Yale and Portland State Universities conducted a study of the effects of fertilizers on ponds in residential areas. They found that human waste from septic systems were not only contributing nitrogen to the ponds, but that pond organisms were primarily feeding from it. Max Lambert, one of the paper's co-authors stated "“Our study highlights that, by choosing to live in and landscape particular places, human neighborhoods are creating fundamentally unique ecosystems by changing how water and food move around, and even what kind of food is available. Suburban animals behave, look, and function differently because of this”
More on this story at Yale News at https://news.yale.edu/2017/12/11/study-suburban-ponds-are-septic-buffet
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