Kansas Research Shows Reintroducing Bison on Tallgrass Prairie Doubles Plant Diversity
Findings from decades of data also point to resistance to extreme drought.
Decades of research led by scientists at Kansas State University offered evidence reintroducing bison to roam the tallgrass prairie gradually doubled plant diversity and improved resilience to extreme drought.
Gains documented in the journal Proceedings of the National Academy of Science were among the largest recorded globally in terms of species richness on grazing grasslands. The research involved more than 30 years of data collected at the Konza Prairie Biological Station near Manhattan.
Zak Ratajczak, lead researcher and assistant professor of biology at Kansas State, said removal of nearly all bison from the prairie occurred before establishment of quantitative records. That meant effects of removing the dominant grazer were largely unknown, he said.
“Bison were an integral part of North American grasslands before they were abruptly removed from over 99% of the Great Plains,” Ratajczak said…