Photo of the Week – January 10, 2013

Portholes in the snow.

Hoarfrost on the edge of a hole in the snow, with prairie grass beneath.

Hoarfrost on the edge of a hole in the snow, with prairie grass beneath.  The Leadership Center Prairie – Aurora, Nebraska.

Early morning hoar frost, calm winds, and a hazy sunrise got me out the door with my camera Tuesday morning.  I found plenty to photograph, including frosty milkweed seeds, mouse tracks, and lots more.  But it was the little windows in the snow that I couldn’t stay away from.

It appears to me that many of the holes in the snow were a result of radiant heat, caused by the sun warming up the plants sticking out of the snow.  Regardless of the reason, they were sure interesting to look at – especially with the morning hoar frost tinging their edges.

Here are just a few of the images I came home with.

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A stiff sunflower stem protrudes from a frost-edged gap in the snow.

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I assume many of the holes were caused by heat radiating from vegetation warmed by the sun?

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Some of the holes were more like cracks...

Some of the holes were more like cracks…

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All in all, it was a pretty nice morning to be out.

All in all, it was a pretty nice morning to be out.

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Photo of the Week – August 31, 2012

It seems like a good time to be a crab spider.  The drought has greatly reduced the number of flowers blooming in prairies, forcing pollinators to visit fewer flowers in greater numbers.  Previously, I’ve used the analogy of crocodiles in watering holes to describe crab spiders waiting in ambush on flowers.  To further that analogy, the drought has now dried up all but a few watering holes, and the crocs just have to sit and wait for the increasingly desperate animals to come to water.

A crab spider with the spotted cucumber beetle it just captured.

When I was photographing for my drought post earlier this week, I found this crab spider, which had just captured a spotted cucumber beetle.  The beetle was still struggling against the spider, but the spider was maintaining a tight grip on its head.  I didn’t stick around for the ending, but it assuredly didn’t end well for the beetle. 

If you’re a gardener who has dealt with these beetles on your cucumbers, melons, or other produce, you’re likely not shedding any tears over this photo.  Not only do cucumber beetles feed on the leaves and fruits of garden vegetables, they are also a carrier for bacterial wilt, which can also cause lots of damage.  However, unlike some garden pests, cucumber beetles are native insects who just happen to have found easy pickings in cultivated areas. 

Cucumber beetles are a very common sight on prairie flowers right now.  They are feeding on the pollen, but like most beetles provide very little actual pollination for most of those flowers.  While they’re not pests to the degree they are in gardens, these insects aren’t really doing those flowers much good either.  

On the other hand, they’re providing a good food source for crab spiders!