September 14, 2025: Spider Webs in the Morning Dew

We had a series of cool nights this week with each night falling well into the 40s.  One cool morning, with everything drenched in condensed water, I found an extraordinary array of spider webs adorned by the dew that formed overnight.  These webs are probably there every morning, they just aren't so visible.  I enjoyed examining the different form and structure and site of each spider's web.  The variety of approaches each species takes to catch food is its own lesson in evolution.  First off, the classic spiderweb of an orb weaver:

The well-planned geometric web of an orb weaver.

This orb weaver built its nest in a small tree at the edge of a field filled with much different spider webs.

A recently mowed field full of spider webs.

These were nothing like the carefully planned and constructed web of the orb weaver, but rather a seemingly random, dense network of threads designed to capture the smallest of insects in the grass.

Thick webs built low down in grass.

This one has a tall spire attached.

Does the tall web perform a particular function in relation to the thick web below?  

This next similar web was also in the grassy field, but built on a tall flower stalk, giving it yet different properties.

This could be the same species with a different idea on how to catch breakfast, or a completely different species.

In yet another location, deep in a mature forest, were more dense webs, but these were built high up in tree branches.

Spider silk is made primarily of protein, and spiders create unique types of silk for different uses with each type formed by a different gland in their body.  The strong silk that forms the frame of a web is called dragline silk.  This silk, which isn't sticky so the spider can walk on it, is stronger by weight than nylon and even Kevlar.  [REF:  Römer L, Scheibel T. The elaborate structure of spider silk: structure and function of a natural high performance fiber. ]  A spider fills in the web structure with a sticky silk called capture silk.  There are yet other silks that are used for preserving captured prey, wrapping eggs, and even a light silk used as a balloon to travel long distances on the wind.  

The spider's ability to create such useful material made me think that we humans have evolved with the ability to create incredible things with our brains and hands, but there's really nothing useful we create using just our bodies like a spider does.  There's a whole world of science that studies spiders and their silk.  See the above reference for a glimpse into that world.

The colder nights makes me think about how the next couple of months are critical times for animals bulking up on food stores, either to get through winter hibernation or for a long migration to the south; for some animals this continues through November.  As noted last week, many food sources are ripening now, just in time for this feeding frenzy, including berries, mushrooms, and seeds from plants large (oak and beech trees) and small (milkweed and asters).  Hobblebush viburnum are highly visible with their red and black berries growing in large clumps on chest-high shrubs.

Hobblebush Viburnum

Old neglected apple trees are ripening their fruit for animals like deer, bear, fox and coyote, all of which will eat them right from the tree or after they've fallen on the ground.  Black cherry trees likewise are maturing their fruit as our young robin from last week knows.

Black Cherry

Black cherries are mostly pit with little flesh; the flesh is edible by humans, though the pits, which produce a cyanogenic glycoside, are not. [REF: https://plants.usda.gov/DocumentLibrary/plantguide/pdf/pg_prse2.pdf]  Birds consume the flesh but not the seeds, which they distribute widely after they pass through their digestive systems.  Rodents on the other hand will eat the flesh, but they also can crack open the pits to eat, or store the pits in their winter caches.  Bears and foxes are like the birds in that they eat cherries only for the flesh, and then plant the pits wherever they leave their scat.  

Other fall berries I seen now are Winterberry, False Solomon's Seal, and Bunchberry.

False Soloman's Seal

Bunchberry

I'm told the Summer mechanic team at a particular ski area has their own name for bunchberries: "Oh Shoot berries" (or something similar to that ;-)  The name derives from the fact that when these berries turn red, it means, oh shoot, we only have a couple of weeks left to finish all our summer maintenance before the snow flies!

I've seen a few garter snakes around lately.  In preparation of their winter hibernation, they're probably feasting on the many small frogs that have been hopping all over the place this summer. 

Common Garter Snake

It's amazing how large a frog a small snake can swallow whole.

We were in mid-coast Maine for most of this week so I wasn't able to check on the loons.  I spent a lot of time along marshes and estuaries where I saw the usual shorebirds including pipers, plovers, eagles, and osprey, but only one new bird, a Killdeer.  I first heard it at night as they were calling while hunting beneath a bright full moon illuminating the estuary all week.  It was unusual to hear something other than loons or owls at night.  For those who love Maine as much as we do, here are a few familiar sights from the Wiscasset Area.

Chewonki Estuary on Montsweag Brook.

Marshall Point Lighthouse in Port Clyde

Burnt Island Light in Southport