Pollinators Support Biodiversity

Biodiversity is the variety of life.  It showcases the relationships between all life forms on Earth.  It is the web of life, connecting all life on Earth in an interdependent web of function, purpose, and necessity.   It can be a protective mechanism against catastrophic failure of life.

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Biodiversity provides:

A wide array of foods and materials, which contributes to the survival of all.  Examples include: medicines derived from plants; 7000 species of plants are also food sources for other species.

Genetic diversity, which defends against diseases and pests.

Example:  Monoculture crops are not diverse, genetically or otherwise,  and are thus             susceptible to influxes of pests and disease, which is one reason why farmers of these crops are so dependent on chemicals to sustain crops. Planting hedgerows with a variety of plants encourages natural pest control for crops via predatory insects and birds.

Ecological services, which are functions performed by many species that result in sustaining life on Earth, and are a supported by biodiversity. Within each ecological service there are many species at play.

Some examples of ecological services are:

Decomposition of waste

       Water purification

       Pest control

       Flood moderation

       Soil fertility

       Pollination

Adaptability to disturbances, which is achieved by a concerted effort of many life forms repairing the damage done by a natural disaster, or another form of disturbance.

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Every piece of every ecosystem is important and each piece depends on the other pieces. We, as humans, are part of a planet-wide ecosystem, and we depend on many different systems for our survival.  One extremely important web we depend on is that of the pollinators.

Pollination supports biodiversity!  It is a mutually beneficial relationship between the pollinator and the pollinated. One without the other would be catastrophic. Pollination supports diversity of plants, as well as the animals that feed on those plants.  This beneficial relationship reaches broadly to birds, small mammals, large mammals, other insects, and us!  If this relationship were lost, many ecosystems would implode.

Pollinators contribute to biodiversity and life on Earth in ways that are significant to every ecosystem existing today.  Roughly 90 % of all flowering plant species are specialized for animal-assisted pollination!  7000 plant species are a form of food for other species.  Many of these flowering plants develop food only as a result of visiting pollinators, and this food supports the lives of countless species, including humans!  The disappearance of pollinators would inflict catastrophic consequences on the entire planet.

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The diversity of pollinators alone is staggering!  There are 20,000 bee species accounted for on Earth, and there are likely more. This number does not account for the hundreds of thousands of species of flies, moths, butterflies, birds, bats, and beetles who also pollinate flowering plants.

Our pollinators are struggling due to habitat loss.  The US alone hosts 40 million acres of turf, which useless to supporting biodiversity (The Humane Gardener). Some populations of butterflies have declined as much as 90%!  Honeybee colony losses are at an all time high!  What do you think that means for our native bee species?  I can tell you it isn’t good.  The struggle is due to: loss of habitat, lack of food, and pesticide use.  

The fact that pollinators are broadly struggling threatens the balance of biodiversity, and life on Earth!  

You can help by doing the following: add back habitat (shelter, food, and water), plant flowering plants, STOP the use of all pesticides (including: insecticides, fungicides, and herbicides), and teach future generations how to coexist.

 

Leafcuttter Bee (Megachile) in Action

If you’ve noticed half moon cuts in your broad-leafed plants, you have Megachile living in your yard.  Check out the video below and click on the link to learn more.

Yesterday was one of my lucky days, as I was able to capture leaf cutter bees cutting their half-moon shaped pieces out of my raspberry bushes, not just once, but three times!  I think you should see what this looks like up close too!  If you’d like a quick refresher, or you’d like to learn about the leaf cutter bee, follow this LINK.

Thank you for joining the movement!

 

Beneath Our Noses

The peculiar thing about humans is, we don’t notice many things unless we are cued to do so.  Thousands of different bees flies beneath our noses without us ever noticing simply because we don’t know to look for them.  My challenge to you is to stop and look closely at the flowering plants along your walk to work, or within your yard, and count the different insects you see visiting those flowers.  There is a world to discover just by observation.

 

Xylocopa: A Carver of Wood

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While visiting Madeira Beach my family ventured up to Florida Botanical Gardens and found a bee that is very rarely found in Colorado.  The carpenter bee, Xylocopa, is known for carving perfectly round tunnels into soft wood for nesting.  Carpenter bees are solitary nesters of wood and plant stalks.  They use sawdust to partition between developing bees (See a PHOTO here) .  In the eastern parts of the US carpenter bees nest in wood, but in the desert areas of the west, they nest in yucca stalks, among other plant stalks.

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They have large, meaty mandibles that are used for creating these perfectly round openings, and can sometimes become a perceived nuisance.  However, they are important pollinators all over the world. They pollinate passionfruit flowers, Brazil nuts, and in some countries, tomatoes  (Learn more with The Bees in Your Backyard).  Their size can make it challenging to fit inside some flowers to extract nectar, so you will see them robbing flowers of nectar, as seen below.

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Nectar robbing consists of grabbing onto the outside of a flower and cutting a slit at the base of the bloom to suck the nectar out without ever touching the pollen, or reproductive parts of the flower.  Thus, not serving as an important pollinator to that flower.  However, flowers replenish nectar stores within minutes of a bee’s visit, so this is unlikely to have a significant negative affect on the flower’s reproductive potential with the thousands of other species of bees taking an interest in these blooms.

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Bumblebees are visiting some of the same flowers the carpenter bees were also robbing.  The difference between the bumblebee and the carpenter bee is the amount of hairs on their bodies.  The abdomen of carpenter bees is smooth and shiny, whereas the bumblebee’s abdomen is hairy, and often striped with various color patterns.

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Interestingly, I did spot a honeybee sucking nectar from the holes this little carpenter bee had made in these blooms.  The ‘bad’ habit seems to be appreciated by some other bee species…might as well benefit from another’s efforts.

This is what makes vacations that much more exciting for me; collecting more bee photos, and opportunities to share with you!  I would love to hear stories of carpenter bee experiences from you, and any photos you have tagged with #thebeeswaggle.  Thank you for joining the movement to know our bees, and protect our bees.