Morris Arboretum, Philadelphia Pennsylvania, covered in pollen from an unknown plant
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.
Learn more:
Related Content
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 dollars per year, and possibly as much as 53 billion dollars per year. This value does not, however, take into account the volume of insects eaten by bats in forest ecosystems and the degree to which that benefits industries like lumber...
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 billion dollars. Critical honey bee populations in...
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 supporting billions of equally tiny bees. Learn more...
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 pollinated by native bees are critical for healthy...
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 that we don't know about native bees—many are...
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 species in the United States, 10% have not been named...
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 animals are hard at work, providing vital but often...
Morris Arboretum, Philadelphia Pennsylvania, covered in pollen from an unknown plant
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.
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.
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.
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.
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.
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.
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.
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.
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.
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 image was taken through the eyepiece of a microscope. Pollen is mixed in with a few larger pieces of organic material.
This image was taken through the eyepiece of a microscope. Pollen is mixed in with a few larger pieces of organic material.
Honey bees play a major role in pollinating the world’s plants, including those we eat regularly. However, land-use changes that decrease flower abundance can affect bee health and pollination services.
Honey bees play a major role in pollinating the world’s plants, including those we eat regularly. However, land-use changes that decrease flower abundance can affect bee health and pollination services.
So many unknowns and so many potentials.
So many unknowns and so many potentials.
Honey bees play a major role in pollinating the world’s plants, including those we eat regularly. However, land-use changes that decrease flower abundance can affect bee health and pollination services.
Honey bees play a major role in pollinating the world’s plants, including those we eat regularly. However, land-use changes that decrease flower abundance can affect bee health and pollination services.
Honey bees play a major role in pollinating the world’s plants, including those we eat regularly. However, land-use changes that decrease flower abundance can affect bee health and pollination services.
Honey bees play a major role in pollinating the world’s plants, including those we eat regularly. However, land-use changes that decrease flower abundance can affect bee health and pollination services.
Honey bees play a major role in pollinating the world’s plants, including those we eat regularly. However, land-use changes that decrease flower abundance can affect bee health and pollination services.
Honey bees play a major role in pollinating the world’s plants, including those we eat regularly. However, land-use changes that decrease flower abundance can affect bee health and pollination services.
A native bee pollinates a prickly pear cactus in Colorado. Credit: Mark Vandever, USGS.
A native bee pollinates a prickly pear cactus in Colorado. Credit: Mark Vandever, USGS.
A macrophotography image showing a native bee pollinating a native flower.
A macrophotography image showing a native bee pollinating a native flower.
It's Pollinator Week, and we're talking to USGS scientist Sam Droege about the tremendous importance of native bees and pollinators in general, and how you can lend a hand to these tiny titans.
It's Pollinator Week, and we're talking to USGS scientist Sam Droege about the tremendous importance of native bees and pollinators in general, and how you can lend a hand to these tiny titans.
Pollinator conservation and climate science at the U.S. Geological Survey
The bee lab
Flowering plants preferred by bees of the Prairie Pothole Region
Forage and habitat for pollinators in the northern Great Plains—Implications for U.S. Department of Agriculture conservation programs
Identification of bees in southwest Idaho—A guide for beginners
National protocol framework for the inventory and monitoring of bees
Related Content
- FAQ
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 dollars per year, and possibly as much as 53 billion dollars per year. This value does not, however, take into account the volume of insects eaten by bats in forest ecosystems and the degree to which that benefits industries like lumber...
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 billion dollars. Critical honey bee populations in...
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 supporting billions of equally tiny bees. Learn more...
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 pollinated by native bees are critical for healthy...
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 that we don't know about native bees—many are...
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 species in the United States, 10% have not been named...
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 animals are hard at work, providing vital but often...
- Multimedia
Halictus ligatus, F, side, Philidelphia, PA
Morris Arboretum, Philadelphia Pennsylvania, covered in pollen from an unknown plant
Morris Arboretum, Philadelphia Pennsylvania, covered in pollen from an unknown plant
Svastra petulca, frontA 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.
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.
orchid bee purple, m, guiana, 1Another 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.
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.
Eucera fulvohirta, M, Baker County, Georgia, face tongueEucera fulvohirta, M, Baker County, Georgia, face tongueOne 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.
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.
Bombus affinis, m, racine wi, LW Macior 1964 faceThe 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.
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.
Bombus fraternus,f, ga, baker,faceBombus 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.
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.
Pollen Under a MicroscopeThis image was taken through the eyepiece of a microscope. Pollen is mixed in with a few larger pieces of organic material.
This image was taken through the eyepiece of a microscope. Pollen is mixed in with a few larger pieces of organic material.
Honey Bees are Valuable PollinatorsHoney bees play a major role in pollinating the world’s plants, including those we eat regularly. However, land-use changes that decrease flower abundance can affect bee health and pollination services.
Honey bees play a major role in pollinating the world’s plants, including those we eat regularly. However, land-use changes that decrease flower abundance can affect bee health and pollination services.
Untapped Capacity: Our 4,000 Species of Native BeesUntapped Capacity: Our 4,000 Species of Native BeesUntapped Capacity: Our 4,000 Species of Native BeesSo many unknowns and so many potentials.
So many unknowns and so many potentials.
Honey Bees are Valuable PollinatorsHoney bees play a major role in pollinating the world’s plants, including those we eat regularly. However, land-use changes that decrease flower abundance can affect bee health and pollination services.
Honey bees play a major role in pollinating the world’s plants, including those we eat regularly. However, land-use changes that decrease flower abundance can affect bee health and pollination services.
Honey Bees are Valuable PollinatorsHoney bees play a major role in pollinating the world’s plants, including those we eat regularly. However, land-use changes that decrease flower abundance can affect bee health and pollination services.
Honey bees play a major role in pollinating the world’s plants, including those we eat regularly. However, land-use changes that decrease flower abundance can affect bee health and pollination services.
Honey Bees are Valuable PollinatorsHoney bees play a major role in pollinating the world’s plants, including those we eat regularly. However, land-use changes that decrease flower abundance can affect bee health and pollination services.
Honey bees play a major role in pollinating the world’s plants, including those we eat regularly. However, land-use changes that decrease flower abundance can affect bee health and pollination services.
Native Bee Pollinating a Prickly PearA native bee pollinates a prickly pear cactus in Colorado. Credit: Mark Vandever, USGS.
A native bee pollinates a prickly pear cactus in Colorado. Credit: Mark Vandever, USGS.
Native Bee Pollinates Native FlowerA macrophotography image showing a native bee pollinating a native flower.
A macrophotography image showing a native bee pollinating a native flower.
Bees Are Not OptionalIt's Pollinator Week, and we're talking to USGS scientist Sam Droege about the tremendous importance of native bees and pollinators in general, and how you can lend a hand to these tiny titans.
It's Pollinator Week, and we're talking to USGS scientist Sam Droege about the tremendous importance of native bees and pollinators in general, and how you can lend a hand to these tiny titans.
- Publications
Pollinator conservation and climate science at the U.S. Geological Survey
Introduction Ecosystems—whether agricultural, urban, or natural—depend on pollinators, great and small. Pollinators in the form of bees, birds, butterflies, bats, and even moths provide vital, but often invisible services, from contributing to biodiverse terrestrial wildlife and plant communities to supporting healthy watersheds. Pollinator declines worldwide have been noted as land-use and climatAuthorsElise R. Irwin, Jonathan R. MawdsleyThe bee lab
IntroductionThe U.S. Geological Survey (USGS) Bee Lab is a collaborative interagency joint venture and international leader for bee (Hymenoptera: Apoidea) identification, survey design, quantification of bee and plant interrelations, and development and maintenance of occurrence databases. Each of these objectives supports native bee conservation by providing critical data and tools for the UnitedAuthorsSam Droege, Elise R. Irwin, Jenn Malpass, Jonathan R. MawdsleyFlowering plants preferred by bees of the Prairie Pothole Region
Land managers have stressed the need for improved pollinator habitat on private and public lands of the Prairie Pothole Region. Understanding flowering plant preferences of pollinators will improve the cost-effectiveness of conservation seeding mixes. The purpose of this fact sheet is to assist conservation planners and producers with developing seed mixes by highlighting flowering plants that areAuthorsStacy C. Simanonok, Clint R.V. OttoForage and habitat for pollinators in the northern Great Plains—Implications for U.S. Department of Agriculture conservation programs
Managed and wild pollinators are critical components of agricultural and natural systems. Despite the well-known value of insect pollinators to U.S. agriculture, Apis mellifera (Linnaeus, 1758; honey bees) and wild bees currently face numerous stressors that have resulted in declining health. These declines have engendered support for pollinator conservation efforts across all levels of governmentAuthorsClint R.V. Otto, Autumn H. Smart, Robert S. Cornman, Michael Simanonok, Deborah D. IwanowiczIdentification of bees in southwest Idaho—A guide for beginners
This document was prepared to help scientists and the public, both of whom may not be familiar with bee taxonomy, learn how to practically identify bees in sagebrush steppe and shrubland habitats in southwest Idaho. We provide information to identify bees to the level of family and genus. A tentative list of the bee genera captured at sites used for insect community studies is included.AuthorsEmily R. Sun, David S. PilliodNational protocol framework for the inventory and monitoring of bees
This national protocol framework is a standardized tool for the inventory and monitoring of the approximately 4,200 species of native and non-native bee species that may be found within the National Wildlife Refuge System (NWRS) administered by the U.S. Fish and Wildlife Service (USFWS). However, this protocol framework may also be used by other organizations and individuals to monitor bees in anyAuthorsSam Droege, Joseph D. Engler, Elizabeth A. Sellers, Lee O'Brien - News