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Human vs Livestock vs Wild mammal biomass on Earth

At some time in recent pre-history, there were fewer than 100,000 humans, hunter gatherers all, while  the rest of mammal diversity was wild. Then humans domesticated plants and animals, and together they came to dominate the landscape in a  very short time. A handy way to measure this is by estimating biomass. This is because small mammals are … [Read more...]

Lion PM001 – “Passarge”

Lion PM001 was the first lion collared by the project in 2008 and his data is not concurrent with other lion data. He was a very large male, estimated at older than 10 years. We collected data for five months from November 2008 till April 2009, when he died of unknown causes. His range covered  an estimated 800 square kilometres, greatly using the … [Read more...]