AI Insight
Researchers analyzing 120,000-year-old fallow deer fossils from Germany's Neumark-Nord site discovered that modern European fallow deer have experienced a dramatic reduction in genetic diversity since the last interglacial period. The study, conducted by scientists from the University of Potsdam, MONREPOS Research Center, and Leiden University, shows that contemporary fallow deer populations represent only a fraction of the genetic variety present in their Ice Age ancestors. This genetic erosion has been driven by both climate change and human activities over the past 120,000 years.
Why it matters
Understanding how historical climate shifts and human pressures reduced genetic diversity in fallow deer can inform current conservation strategies for the species and other wildlife facing similar threats. The findings provide a long-term perspective on biodiversity loss that may help predict and mitigate future impacts of environmental change on animal populations.
Understand the Science
European fallow deer have faced a dramatic loss of genetic diversity since the last interglacial period. This was revealed by 120,000-year-old fossils from central Germany’s Neumark-Nord site in Saxony-Anhalt, analyzed by researchers from the University of Potsdam, the MONREPOS Research Center and Museum in Neuwied, and Leiden University. Their results have been published in the journal iScience. Modern fallow deer thus represent just a fraction of their Ice Age ancestors’ variety. The study highlights how climate and human actions substantially reshaped a once-diverse species and may help inform conservation action.
Source: 120,000-year-old European fallow deer—tracing the loss of genetic diversity