Native Bees: 20,000 Species Beyond the Honeybee

What they are

Honeybees get the press. They are one species out of more than 20,000.

The rest live differently. Most are solitary. No hive. No queen. No honey. No defensive swarm.

A female digs a tunnel or finds a hollow stem. She packs it with pollen, lays eggs, and dies. Next year a new generation emerges, alone.

The forms. Mining bees (Andrena) tunnel into bare ground. Mason bees (Osmia) plug hollow stems with mud. Leaf-cutters (Megachile) line cells with cut leaf discs. Carpenter bees (Xylocopa) bore into dead wood. Cuckoo bees skip the work and parasitise other bees' nests.

Northern Europe holds over 250 species. North America has more than 4,000. Every hedgerow you walk past supports its own community.

Why they outperform honeybees

Flower for flower, native bees pollinate better than honeybees on most crops. Two reasons.

Buzz pollination. Tomatoes, peppers, eggplant, blueberries, cranberries, and kiwifruit hide pollen inside poricidal anthers. The pollen only drops when shaken at the right frequency. Bumblebees and many solitary bees grip the flower and vibrate their flight muscles to shake it loose. Honeybees cannot. A blueberry field run on honeybees alone produces less fruit than the same field with resident Osmia or Bombus.

Messy carrying. Honeybees groom pollen into tight, wet baskets on their hind legs. Almost nothing falls off onto a stigma. Solitary bees carry pollen in dry, hairy scopae and shed it everywhere they go. One red mason bee (Osmia bicornis) visit deposits more pollen on an apple stigma than several honeybee visits.

For food forest design and orchards, this is a productivity argument. Wild pollination is free, resilient, and qualitatively better.

What they need to nest

Habitat loss drives the decline. Ahead of pesticides. Ahead of disease.

About 70 percent of bee species nest in the ground. They want bare, sunny, well-drained soil. South-facing banks, unpaved paths, gaps between plants, scuffed garden edges. Pave it, turf it, or mulch it solid and the nests are gone.

The other 30 percent nest in cavities. Hollow stems, beetle holes in dead wood, gaps in dry-stone walls. Many overwinter as pupae inside those stems. Cut them in October and you kill the next generation.

For pollinator habitat, nesting matters as much as flowers. A meadow full of blooms supports few bees if there is nowhere to lay eggs.

Build it

Four moves, in any combination, on any scale.

Flowers across the season. Willows, crocuses, and heather for the early bees. Umbellifers and open daisies through summer for short tongues. Foxglove, comfrey, dead-nettles for long-tongued bumblebees. Ivy, goldenrod, and asters into late autumn. A wildflower meadow cut once in late summer beats any seed mix sold in a packet.

Bare ground. Leave a few sunny, south-facing patches of soil uncovered. Build a sand pile if your soil is heavy. Mining bees will find it within a season.

Standing dead stems. Bramble, elder, teasel, fennel. Leave them through winter and cut in March. The pupae inside need that time.

Cavity nests. Stack dead wood in sun. Drill 6 to 10 mm holes, 15 cm deep, into hardwood blocks. Mount them on a south-facing post or wall. Bundles of bamboo work too if the canes are sealed at the back.

In restoration, run continuous habitat along wildlife corridors so populations can move.

When it goes wrong

Tidy gardens kill bees. So do roadside mowers running through June bloom.

Neonicotinoid seed coatings are the chemical version of the same problem. The pesticide moves through the plant into pollen and nectar at sub-lethal doses. Bees lose navigation, forage poorly, fail to reproduce. Residues turn up in wildflowers along field margins next to treated crops. For a bee that nests in those margins, exposure is unavoidable. Integrated pest management that cuts neonicotinoid use is one of the highest-leverage interventions you can make.

Disease spillover is the newer worry. Deformed wing virus and Nosema ceranae transmit from managed honeybee colonies to wild bees through shared flowers. Trucking hives across continents for almond pollination accelerates it.