# Do bees feed on both nectar and pollen?

Bees feed on and require both nectar and pollen. The nectar is for energy and the pollen provides protein and other nutrients. Most pollen is used by bees as larvae food, but bees also transfer it from plant-to-plant, providing the pollination services needed by plants and nature as a whole.

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### Does the loss of plant diversity affect the health of native bees?

Loss of plant diversity is the primary cause of native bee decline. About 30-50% of all native bees are highly specialized, so if the plant they rely on disappears, the bees go away. If the bees disappear, the plant is unable to reproduce and dies out. While some of the plants pollinated by native bees are important food crops, other plants...

### How many species of native bees are in the United States?

There are over 20,000 known bee species in the world, and 4,000 of them are native to the United States. They range from the tiny (2 mm) and solitary Perdita minima , known as the world’s smallest bee, to kumquat-sized species of carpenter bees . Our bees come in as many sizes, shapes, and colors as the flowers they pollinate. There is still much...

### Do native bees occur on every continent on the planet?

Native bees occur on every continent except Antarctica. Wherever there are insect-pollinated flowering plants—be it in forest, farms, cities, and wildlands—there are bees. And just because you don’t see obvious blooming plants, that does not mean that there are no bees around. Look down! Those tiny flowers that you see on some plants are also...

### Are honey bees native to North America?

Honey bees are not native to North America. They were originally imported from Europe in the 17th century. Honey bees now help pollinate many U.S. crops like fruits and nuts. In a single year, one honey bee colony can gather about 40 pounds of pollen and 265 pounds of nectar. Honey bees increase our nation's crop values each year by more than 15...

### What is the role of native bees in the United States?

About 75% of North American plant species require an insect—mostly bees—to move their pollen from one plant to another to effect pollination. Unlike the well-known behavior of the non-native honeybees, there is much that we don’t know about native bees. Many native bees are smaller in size than a grain of rice. Of approximately 4,000 native bee...

### Why are pollinating bats, birds, bees, butterflies, and other animals important?

Do you enjoy a hot cup of coffee, a juicy peach, an-apple-a-day, almonds, rich and creamy dates, a handful of plump cashews, or vine-ripened tomatoes? Do you enjoy seeing the native flowers and plants that surround you? If so, you depend on pollinators. Wherever flowering plants flourish, pollinating bees, birds, butterflies, bats and other...

### Why are bats important?

By eating insects, bats save U.S. agriculture billions of dollars per year in pest control. Some studies have estimated that service to be worth over $3.7 billion per year, and possibly as much as$53 billion. This value does not, however, take into account the volume of insects eaten by bats in forest ecosystems and the degree to which that...
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Date published: July 16, 2020

### USGS Scientists are Busy as a Bee

Many bumble bee species have declined in recent decades due to changes in habitat, climate, and pressures from pathogens, pesticides and introduced species. The western bumble bee, once common throughout western North America, is a species of concern and is being considered for listing by the U.S. Fish and Wildlife Service under the Endangered Species Act.

Date published: June 22, 2020

### It’s Pollinator Week!

Pollinators in the form of bees, birds, butterflies, bats and beetles provide vital but often invisible services, from supporting terrestrial wildlife and plant communities, to supporting healthy watersheds.

Date published: June 20, 2019

### Honey Bee Helpers: It Takes a Village to Conserve a Colony

Do you eat fruits and vegetables? What about nuts? If so, you can thank an insect pollinator, usually a honey bee. These small insects play a major role in pollinating the world’s plants, including those we eat regularly. They also increase our nation’s crop values each year by more than 15 billion dollars.

Date published: June 17, 2019

### Test your bee and other pollinator knowledge!

It’s pollinator week and USGS is providing science to better understand the status of pollinator species. Here’s the chance to test your knowledge about bees and other pollinators, with our pollinator week quiz!  And let us know on FB or Twitter how you did!

Date published: June 18, 2018

### It’s National Pollinator Week! Get the buzz on USGS pollinator research

Bees, birds, butterflies, bats and beetles provide vital but often invisible pollination services that support terrestrial wildlife and plant communities, and healthy watersheds.

Date published: June 15, 2015

### The Buzz on Native Bees

Bees are nearly ubiquitous, occurring on every continent except Antarctica. Wherever there are insect-pollinated flowering plants — forest, farms, cities and wildlands — there are bees. And just because you don’t see plants blooming, does not mean that there are no bees around.

Date published: May 19, 2015

### Pollinators Get a National Strategy to Restore Their Health

Small bees that don’t bother or sting us can remain unstudied despite their abundance.

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December 17, 2019

### Bombus fraternus,f, ga, baker,face

Bombus fraternus - Here is one of the very uncommon bumblebees that are of great concern these days, due to introduced parasites that have caused this species and its sister taxa to crash. Fortunately, they are still around, at least in small numbers. This one is yet another fabby find by Sabrie Breland, from the Southern Longleaf Pine Woodlands (or what remains of them

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December 17, 2019

### Bombus affinis, m, racine wi, LW Macior 1964 face

The Endangered Bumble Bee. Bombus affinis. The Rusty-Patched Bumble Bee. Here is a a male from Racine Wisconsin collected years ago when this species was one of the most common species. The collector was W.L. Macior and his specimens live in the National Collection at the Smithsonian. Photography Information: Canon Mark II 5D, Zerene Stacker, Stackshot Sled, 65mm

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December 17, 2019

### Eucera fulvohirta, M, Baker County, Georgia, face tongue

One of the more uncommon to rare eastern bees in North America. Eucera fulvohirta is found in the arc of the continental coastal plain only from Louisiana to North Carolina. What plants does it feed on, what is its place in the natural history of the region. No one knows. This lovely lovely yellow orange specimen found by Sabrie Breland in the flatlands of South

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December 17, 2019

### orchid bee purple, m, guiana, 1

Another orchid bee in the genus Euglossa from Guyana. At present no species name, but perhaps some day I will have time to work with David Roubik on the many species we collected on a Smithsonian expedition into the interior jungles. This is a male, collected using some of the orchid floral scents to attract them that they use in courtship rituals. Photography

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December 17, 2019

### Svastra petulca, front

A lovely Deep South Svastra, S. petulca to be specific. A nice pollen shot. You can see the huge bushy pollen carrying hairs on its hind legs, designed to carry dry pollen unlike Honey Bees and Bumble Bees which mix their pollen with nectar. I am guessing it is some sort of composite given it is blow out orange and that Svastras are known to favor that family of plants

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December 17, 2019

### Halictus ligatus, F, side, Philidelphia, PA

Morris Arboretum, Philadelphia Pennsylvania, covered in pollen from an unknown plant

June 15, 2018

### Pollen Under a Microscope

This image was taken through the eyepiece of a microscope. Pollen is mixed in with a few larger pieces of organic material.

April 28, 2016

### Untapped Capacity: Our 4,000 Species of Native Bees

So many unknowns and so many potentials.

• In secret, Native Bees, not honey bees, do most of our pollinating
• Why we don't know the status of 99% of our Native Bees
• Why are there 400 Native Bees without names
• Why biodiverse native plant communities = biodiverse native bee communities
June 30, 2014

### Native Bee Pollinating a Prickly Pear

A native bee pollinates a prickly pear cactus in Colorado. Credit: Mark Vandever, USGS.

August 31, 2013

### Native Bee Pollinates Native Flower

A native bee pollinates a native flower. Credit: Mark Vandever, USGS.