What are the ecological consequences of trophic downgrading in mixed/short grass prairies in North America? part of Neotoma:Teaching Activities
Dennis Ruez, University of Illinois at Springfield
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?

Advanced exploration of the ecological consequences of trophic downgrading in mixed/short grass prairies in North America part of Neotoma:Teaching Activities
Dennis Ruez, University of Illinois at Springfield
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?