While cemeteries are traditionally viewed as places of stillness and rest, a massive, buzzing metropolis is waking up beneath the soil of Ithaca, New York. Researchers from Cornell University have discovered that the East Lawn Cemetery serves as a massive sanctuary for one of the world’s largest known aggregations of ground-nesting bees.
A Massive Underground Discovery
The species in question, Andrena regularis (commonly known as the regular miner bee), does not live in the structured, communal hives associated with honeybees. Instead, these are solitary bees that spend much of their lives in individual underground burrows.
The scale of this population was only recently realized. While the species has been documented in the area since 1935, it wasn’t until 2021 that the sheer magnitude of the colony was identified. The discovery was serendipitous: a Cornell lab technician noticed a massive number of bees while walking through the cemetery, leading to a formal scientific investigation.
The Science of the Survey
In the spring of 2023, entomologists conducted a rigorous field study to quantify the population. Using “emergence traps”—small tents placed over nesting sites to catch bees as they exit the ground—the team collected samples over a 48-day period.
By analyzing these samples, researchers were able to extrapolate the following data:
– Species Diversity: 16 different insect species were identified.
– Population Density: An average of 853 bees nest per square meter of sandy loam soil.
– Total Estimate: The researchers estimate that as many as 5.56 million A. regularis bees emerge from the cemetery each spring.
This discovery is significant because, while other large aggregations likely exist globally, this site stands out as one of the most massive documented in scientific literature.
Why Cemeteries are Bee Sanctuaries
It may seem ironic that a place of mourning provides such a vibrant habitat, but cemeteries offer several environmental advantages for ground-nesting insects:
– Minimal Disturbance: The ground is rarely plowed or excavated.
– Chemical Safety: There is a notable lack of heavy pesticide use compared to agricultural lands.
– Peaceful Environment: The low-traffic nature of the grounds provides a stable ecosystem.
This habitat supports a complex web of life. For instance, the A. regularis shares the space with the Nomada imbricata, a “cuckoo” bee that acts as a brood parasite, laying its eggs in the nests of the miner bees.
The Economic and Ecological Stakes
The importance of these bees extends far beyond the cemetery walls. A. regularis is a critical pollinator for apples and blueberries, contributing significantly to the local agricultural economy of New York.
However, this discovery also highlights a growing vulnerability. Most bee species—roughly 75 percent —are ground-nesters, yet they remain much less studied than honeybees due to their reclusive nature.
“If we don’t preserve nest sites, and someone paves over them, we could lose in an instant 5.5 million bees that are important pollinators,” warns Cornell entomologist Bryan Danforth.
Conclusion
The discovery at East Lawn Cemetery serves as a vital reminder of the hidden biodiversity existing beneath our feet. As urban development continues, protecting these accidental sanctuaries is essential to maintaining the pollinator populations that support our global food systems.
