Redefining Prehistoric Europe: Neanderthals as Landscape Architects

A groundbreaking study published in PLOS ONE has upended long-held assumptions about Europe's ancient wilderness. Researchers from leading European universities have demonstrated that Neanderthals, our closest human relatives, actively shaped the continent's ecosystems tens of thousands of years before the dawn of agriculture. Through strategic use of fire and targeted hunting of megafauna, these early inhabitants transformed dense forests into open grasslands, influencing vegetation patterns across vast regions.

This revelation comes from an international team leveraging advanced agent-based modeling (ABM) coupled with fossil pollen records. The findings challenge the romanticized notion of a pristine, untouched Europe prior to farming, positioning Neanderthals as proactive environmental engineers. For academics in archaeology and paleoecology, this opens new avenues for understanding human-environment interactions in deep time.

Neanderthals in Context: Survivors of the Last Interglacial

Neanderthals (Homo neanderthalensis), a species of archaic humans who lived from approximately 400,000 to 40,000 years ago, dominated Europe during the Last Interglacial period (roughly 125,000 to 116,000 years ago). This warm phase between ice ages featured diverse landscapes from Mediterranean woodlands to northern steppes. Archaeological evidence, including stone tools and hearths, indicates Neanderthals maintained semi-permanent campsites, hunted large game like mammoths and reindeer, and mastered fire control.

Traditionally viewed as passive foragers in a wild, unmanaged continent, Neanderthals are now seen as capable of ecosystem modification. Their activities during this interglacial mirror those of later modern humans, suggesting sophisticated ecological knowledge passed down through generations—or independently developed.

Innovative Methods: Blending Simulations with Pollen Proxies

The study employed the LPJ-LMfire vegetation model, enhanced with an agent-based module simulating hunter-gatherer behaviors. Researchers inputted data from over 1,000 archaeological sites for Neanderthal campsite locations and densities. Fire events were modeled based on ethnographic analogies from modern hunter-gatherers, assuming deliberate burning to clear brush and attract game. Hunting pressure targeted large herbivores (megafauna), reducing their populations and altering grazing dynamics.

Fossil pollen data from European sediment cores served as the benchmark, revealing plant functional types (PFTs) like trees, shrubs, and grasses. By comparing model outputs to these proxies, the team quantified human influence versus climate, natural fires, and ungulate browsing. This interdisciplinary approach, rooted in computational archaeology, exemplifies how European universities are pioneering digital humanities in prehistoric research.

Neanderthals' Toolkit: Fire and the Hunt

Fire was central to Neanderthal landscape management. Simulations showed they ignited burns around campsites, reducing woody vegetation by up to 20% locally and promoting fire-adapted grasses. This opened habitats, facilitating movement and hunting. Evidence from sites like Neumark-Nord in Germany supports repeated fire use during the Last Interglacial.

Hunting megafauna had cascading effects. By depleting herds of aurochs, bison, and horses, Neanderthals lessened browsing pressure, allowing shrubs and trees to regenerate in some areas while grasslands expanded elsewhere. The model indicates these changes radiated 50-100 km from campsites, affecting 14% of Europe's vegetation openness.

Measuring the Footprint: Neanderthal Impact Quantified

Key statistics from the study: Neanderthals altered plant functional type distributions in 6% of 0.5° x 0.5° grid cells across Europe, with vegetation openness impacted in 14%. Their influence was strongest in southern and central Europe, where population densities were higher. Surprisingly, the radius of effect around individual sites matched that of later Mesolithic groups, despite lower overall numbers.

• Fire contribution: Direct shrub/tree reduction, indirect grass promotion.
• Hunting: Megafauna decline led to 10-15% woody encroachment in models.
• Regional hotspots: Iberian Peninsula, French Massif Central, Rhine Valley.

These figures underscore Neanderthals' role as ecosystem engineers, comparable to modern indigenous practices.

Mesolithic Echoes: Modern Humans Amplify the Change

Fast-forward to the Early Holocene Mesolithic (12,000-8,000 years ago), when anatomically modern humans (Homo sapiens) repopulated post-Ice Age Europe. Higher population densities amplified impacts: up to 47% of PFT distributions affected. Fire use intensified, creating parkland mosaics that early farmers later exploited. The continuity suggests cultural persistence in landscape practices.

This parallel highlights evolutionary continuity in human environmental agency.

European Academic Collaboration: Key Players

The research team spans top institutions: lead author Anastasia Nikulina from Leiden University's Faculty of Archaeology (Netherlands), with affiliations to Durham University (UK); senior author Jens-Christian Svenning from Aarhus University's Center for Ecological Dynamics and Macroecology (Denmark); contributors from Helsinki and beyond. This pan-European effort, funded by ERC grants, showcases collaborative higher education research.Explore Europe university jobs.

"Neanderthals were active co-creators of Europe's ecosystems," notes Svenning.

Paradigm Shift: From Pristine to Managed Wilderness

The study dismantles the 'Edenic' view of pre-Neolithic Europe as virgin wilderness. Instead, humans (archaic and modern) were integral, creating anthropogenic landscapes. This reframes conservation debates: modern rewilding efforts must account for prehistoric baselines shaped by fire and predation.

Implications for Higher Education and Research Careers

For students and faculty in archaeology, paleoecology, and computational modeling, this study highlights booming fields. European universities seek experts in GIS, ABM, and palynology. Pursue research jobs or research assistant positions to contribute. Craft a standout CV with our guide.

Photo by Roman Kraft on Unsplash

Future Horizons: Unanswered Questions

Next steps include finer-scale regional models, isotopic analysis of megafauna bones for diet shifts, and genomic studies linking Neanderthal fire genes. As climate change alters modern landscapes, these insights inform resilient ecosystem management. Aspiring researchers, check postdoc opportunities.

In conclusion, Neanderthals didn't just survive Europe's wilderness—they sculpted it. This discovery from Europe's academic powerhouses invites us to reevaluate humanity's ancient bond with nature. Explore rate professors, higher ed jobs, and career advice to join the field.