The Milkweed Diaries
Showing posts with label insects. Show all posts
Showing posts with label insects. Show all posts

Wednesday, March 12, 2014

On Bees, Beauty, and Science


Osmia lignaria (Blue Orchard Bee), a native megachilid  bee that nests in holes and reeds
Growing up, I experienced science classes as irrelevant tedium, something to just try to get through with as little pain as possible. I remember being bored with science classes in elementary school, doing a lot of rote memorization in my high school chemistry, biology, and physics classes, and never having any interest in learning any more than I had to about science.

Something strange happened in college. To meet my minimum science requirements, sure that I would be suffering through more tedious memorization of numbers, rules, and formulas, I looked for the least boring, most "liberal artsy" of the science classes in the course catalog.  I signed up for Evolutionary Ecology and Cosmology and fell in love with both. 

Suddenly, science was fascinating, relevant, and useful.  It was tinged with mysticism and magic, and full of beauty and wonder. My two science professors, passionate about their fields of expertise, brought to life for me the science of life and of the cosmos. Evolution and ecology and the mysteries of the origins of the universe fascinated me.

But it was too late - I was already deep into my major and committed to thinking of science as something arcane, confusing, and dry -- something that belonged to science and math people, not to English majors like me. Those classes, I thought, were just odd diversions, strange aberrations, lucky breaks in my quest to knock out the core courses required for a liberal arts major to graduate.

Rachel Carson paying attention
Many years later, as a gardener and lover of the natural world, I came to feel ripped off.  Science is amazing. The universe and the planet are amazing, and science is one of the ways we witness and comprehend all of the wonder of the universe and the Earth. I wish that science classes in elementary school and high school had consisted of bird watching, making compost and studying worm bins, walks in the woods, animal tracking, night field trips with telescopes, and wading in the stream with a magnifying glass.

I especially regret not studying botany earlier in life, along with all of the life sciences - the studies of the amazing community of life on the planet--entymology, ornithology, zoology‎, microbiology, and so on.

So in small ways I've been trying to remedy my ignorance of science for years, and I've made more headway with plants than with other living things, but still feel woefully un-learned.  Carl Sagan and Rachel Carson have helped, and field guides, and smart friends, and just spending a lot of time outside in the natural world paying attention.

So when I get to look at a sweat bee under a microscope and see her back glittering iridescent green, a tiny, magical, shimmering, bejeweled surface invisible to the naked eye, it's an exciting day for me.

At the Organic Growers School last weekend I had a chance to do just that - at a class called "Meet the Bees," taught by Dr. Jill Sidebottom.  I sat next to my new blogger friend Rachel in Dr. Sidebottom's bee class, and we totally nerded out.  

Inspecting bees under the microscope

Agapostemon sericeus (Sweat Bee), courtesy of Bee Tribes of the World (bugsrus, York University)
-- similar to the emerald green sweat bee I studied under the microscope in "Meet the Bees."

Dr. Jill has been studying bees and insects sometimes mistaken for bees in Christmas tree fields, thanks to NC Extension (yay, my tax dollars at work!). She showed us a lot of specimens and put us through the paces with bee, wasp, and fly identification (I have a lot to learn, suffice to say).

The class deepened my love of the bumbling Bombus genus (Bumblebees!).  Bombus species, I learned from Dr. Jill, are excellent pollinators because they are big, hairy, clumsy, and loud.  The volume of their buzzing as they perch on the edge or hang out inside of a flower actually helps shake loose pollen, which then collects on their hairy bodies.

 Bombus terrestris (a Bumblebee species) courtesy of Wikipedia Commons
And I have a new appreciation for Sweat Bees. I love that they are shockingly, excessively beautiful in a way that is invisible to the naked eye. Certain Sweat Bees are downright "blingy" in the words of our instructor - iridescent, sparkly, exquisite, and glamorous up close. Seeing some of the members of the genus Agapostemon (Metallic Green Bees) under the microscope, you would think you must be looking at some rare and exotic insect. But it's just a pesky, common, tiny Sweat Bee.  Having seen their beauty up close, I know I'll think twice about swatting them this summer.


Rachel inspecting bees with a hand lens
Dr. Jill also shared some great sources of gorgeous photos of birds, bugs, and other natural wonders -- here are a few that live in Facebook world:


Thanks to Dr. Jill Sidebottom for a great introduction to all of the different kinds of bees in this part of the world, and thanks to the Organic Growers School for the chance to play at science!

PS/update 3/13: Thanks to Christina for sending me another amazing wild bee photo collection: the USGS Bee Inventory and Monitoring Lab's Flickr stream which includes hundreds of beautiful photos of bees. 




Sunday, July 17, 2011

Seminal Work

It's hard to believe I've never read Rachel Carson's Silent Spring before now. I've been meaning to read it for years, and I'm so glad I've finally gotten around to it.

It really is an incredible, revolutionary, prescient, and brilliant book. So much of what Rachel Carson wrote is so relevant for those of us engaged in growing food now, and really for anyone who cares about the health of the planet and our own health.

I always thought that Silent Spring was just about DDT. It is so much broader and deeper than that--it's really an indictment of the whole way of thinking that sets humans apart from the rest of the natural world.

Silent Spring has a lot to say about how we grow food. Carson's comments on agriculture are still relevant and cutting-edge, even 50 years later. She advocates polyculture/interplanting and explains the problem with monoculture (although I don't think the word had been coined yet), explains the concept of broad-spectrum insecticides--which she says should really be called "biocides," discusses the affect of pesticides on honeybees, explains the way that invasive species of plants and insects can disrupt ecosystems, and exposes the history and origins of synthetic pesticides. She explains that the first synthetic pesticides were developed during WWII, and were chemical agents developed by the military for use in chemical warfare, intended to be lethal to humans. Insects were used to test the poisons, and it was inadvertently discovered that they were also lethal to insects.

Reading Silent Spring has made me bump Linda Lear's biography of Rachel Carson to the next-up spot on my reading list - I'm just staggered by the breadth of this woman's knowledge and analysis, and moved by her beautiful writing. She apparently wrote Silent Spring while suffering from rapidly-metastasizing breast cancer, racing against the disease to finish her life's work. In the 18 months that she lived after the book was published, she was viciously attacked by the chemical industry, which branded her a "hysterical spinster."















I honor the "hysterical spinsters" of days gone by as my feminist foremothers, and am so grateful for Rachel Carson's courage, vision, and brilliance in defense of systems of life on the planet.

Here are some quotes from what I've read so far:

  • "Under primitive agricultural conditions the farmer had few insect problems. These arose with the intensification of agriculture--the devotion of immense acreages to a single crop. Such a system set the stage for explosive increases in specific insect populations. Single-crop farming does not take advantage of the principles by which nature works; it is agriculture as an engineer might conceive it to be. Nature has introduced great variety into the landscape, but man has displayed a passion for simplifying it. Thus he undoes the built-in checks and balances by which nature holds the species within bounds. One important natural check is a limit on the amount of suitable habitat for each species. Obviously then, an insect that lives of wheat can build up its populatio nto much higher levels on a farm devoted to wheat than on one in which wheat is intermingled with other crops to which the insect is not adapted."
  • "The most alarming of all man's assaults upon the environment is the contamination of air, earth, rivers, and sea with dangerous and even lethal materials. This pollution is for the most part irrecoverable; the chain of evil it initiates not only in the world that must support life but in living tissues is for the most part irreversible. In this now universal contamination of the environment, chemicals are the sinister and little-recognized partners of radiation in changing the very nature of the world--the very nature of its life."
  • "Future historians will be amazed at our distorted sense of proportion. How could intelligent beings seek to control a few unwanted species by a method that contaminated the entire environment and brought the threat of disease and death even to their own kind?"
  • "It seems reasonable to believe that the more clearly we can focus our attention on the wonders and realities of the universe about us, the less taste we shall have for the destruction of our race. Wonder and humility are wholesome emotions, and they do not exist side by side with a lust for destruction."


seminal (ˈsɛmɪnəl)

— adj
1. highly original, influential, and important
2. (botany) of or relating to seed

[origin: from Late Latin sēminālis belonging to seed, from Latin sēmen seed]

Saturday, June 12, 2010

Creature Comforts

File under: Things we wouldn't get to do if we had a Big Farm. Rescuing woolly worms. A photo from late winter/early spring that I meant to post back then but lost track of.

They were everywhere! We tried to relocate them to alternate warm spots whenever our gardening activities exposed them.

Given the onslaught of insects we've been encountering lately that DON'T bring a smile to our faces, it seemed appropriate to remember the sweetness of discovering sleeping woolly worms in the garden.