What are the ecological consequences of trophic downgrading in mixed/short grass prairies?Category: Higher Ed Coursework
Contributor: Dennis Ruez
Posted on: April 26, 2017
North American ecosystems have fundamentally changed over the late Pleistocene and Holocene; from a system dominated by mammoths, to bison, to domestic livestock. Given the very different body size and herd formation of these 'ecosystem engineers', it is likely that animals influence soil structure, water tables, vegetation and other animals in the ecosystems. What has been the ecological influence of the continued 'downsizing' of the largest animals in the ecosystem?