5.5 Million Bees Thrive for a Century in New York Cemetery

In the spring of 2023, an estimated 5.56 million ground-nesting bees emerged from a 1.5-acre patch of East Lawn Cemetery in Ithaca, New York, a colony that has thrived there for over a century, according to scientificamerican. This discovery challenges conventional assumptions about urban biodiversity, particularly the notion of such a massive colony of Andrena regularis flourishing undetected in a New York cemetery for over a hundred years.

Global pollinator populations face severe threats, yet this immense, century-old bee colony continues to flourish, largely undetected, within an active urban cemetery. This tension reveals a significant ecological paradox within human-modified landscapes.

Therefore, urban green spaces, particularly those with minimal disturbance like cemeteries, are critical, overlooked refuges for biodiversity, suggesting a radical re-evaluation of urban land use for conservation.

A Century of Hidden Life

An estimated 5.5 million individual mining bees (Andrena regularis) inhabit a 1.5-acre area in East Lawn Cemetery, establishing one of the largest and oldest known aggregations of nesting bees. This remarkable discovery, reported by The Weather Network and ScienceDaily, confirms the site as a significant, long-standing ecological refuge. The sheer scale and longevity of this colony demonstrate the resilience of certain species when provided with stable, undisturbed habitats, even within urban environments. The century-long survival of this massive Andrena regularis colony suggests that minimal human disturbance, even in urban settings, can be a more effective conservation strategy for certain pollinators than active, manicured interventions.

The Recent Emergence and Estimation

In spring 2023, researchers estimated that between 5.56 million and 5.6 million ground-nesting bees emerged from approximately 6,500 square meters at East Lawn Cemetery, as reported by Scientific American and Smithsonian Magazine. This slight variation in reporting confirms the immense scale of the colony while acknowledging the inherent estimation in such large-scale ecological counts. The precise data from the 2023 emergence provides concrete evidence of the colony's current vitality and immense population, allowing scientists to quantify its significance. This discovery reveals that cities unknowingly harbor critical, unmanaged biodiversity hotspots, demanding a radical re-evaluation of urban green space conservation strategies.

The discovery of an immense colony of approximately 5.5 million subterranean Andrena regularis bees in East Lawn Cemetery, as reported by WIRED, reveals that human-modified landscapes, when undisturbed, can foster biodiversity far beyond what traditional conservation models predict. The minimal disturbance and consistent land management practices in cemeteries inadvertently create ideal conditions for ground-nesting species, establishing them as crucial, unrecognized biodiversity hotspots. The undetected thriving of 5.5 million bees exposes a critical oversight: urban cemeteries, often viewed solely for their functional purpose, are in fact ecological goldmines. These sites could be key to reversing pollinator decline if properly recognized and protected.