LANDSCAPE EXPERIENCES MAJOR SHIFTS IN APPEARANCE OVER SHORT TIME SPAN

As I was preparing to post this blog, I received the latest installment of Ian Lunt’s blog, which gives very good advice to science bloggers about how to capture and hold an audience’s attention.  Ironically, I’d just been worrying that my new post wasn’t as pithy as it could be, and had even asked my kids to read it and tell me what they thought.  I didn’t actually change the post after reading Ian’s advice, but I did change the “headline” to make it more snappy.  I hope Ian approves…  (The fact remains, however, that the following post is really just a series of pictures I thought were nice, so feel free to skip it and find something more productive to do.  The only good news is that there’s very little text to slog through…  So, with that sales pitch – here you go!)

I’ve been going through more timelapse images from the Niobrara Valley Preserve recently.  There are numerous story lines from the cameras there, all of which tell a tale of recovery and resilience following the big wildfire in 2012.  In a smaller way, however, looking through the images also demonstrates how much the appearance of a site changes from day to day.

In this post, I’m showing seven images taken by the same camera, from the same perspective, but on different days and at different times through the 2014 season.  The camera that took the photos is mounted high atop a windmill at the south end of a 10,000 acre bison pasture.  These seven images of sandhill prairie span an eight month period.

January 8, 2014.  6pm.

January 8, 2014. 6pm.

February 5, 2014.  3pm.

February 5, 2014. 3pm.

April 5, 2014.  7pm.

April 5, 2014. 7pm.

May 17, 2014.  7:30pm.

May 17, 2014. 7:30pm.

July 24, 2014.  9pm.

July 24, 2014. 9pm.

 

August 15, 2014.  9:30am.

August 15, 2014. 9:30am.

August 15, 2014.  8pm.

August 15, 2014. 8pm.

All of us who visit someplace regularly recognize that it never looks exactly the same twice, but we usually compare what we see today with what we remember from an earlier time.  Timelapse photos allow us to record those variations and compare them side by side.

Ok, sure, the presence or absence of bison helps distinguish some of these photos from others, but bison are also a part of (and a driver of) the changing landscape at the Niobrara Valley Preserve.  More to the point of this post, however, are the differences in the quality, direction, and intensity of light between photos; not to mention the varied appearances of the sky and the growth stage of the prairie vegetation.  The prairie can look starkly different even within the same day – as shown by the last two photos.

There are countless reasons a prairie changes in appearance from day to day, even from moment to moment.  More importantly, however, those changes should motivate us to get out and enjoy nature even more often.  After all, you never know what you’ll see!

As always, thanks to everyone at Moonshell Media for their help with this timelapse project.  

Photo of the Week – October 17, 2014

Who could be mad at these big beautiful brown eyes?

A differential grasshopper (that's its name, not its demeanor) on stiff goldenrod.

A differential grasshopper (that’s its name, not its demeanor) on stiff goldenrod.

As it turns out, lots of people can.

The differential grasshopper is one of a long list of native North American species, headlined by white-tailed deer and raccoons, that have adapted very well to today’s agricultural landscapes.  Whether you call these species adaptable generalists or pests probably depends upon whether or not they’re eating your sweet corn.  Regardless, you have to admire (or at least recognize) the traits that allowed them to thrive under changing habitat conditions that have pushed many other native species to the brink of extinction.

The olive-greenish color and the strong herringbone pattern on its back leg helps distinguish the differential grasshopper from other species.

The olive-greenish color and the strong herringbone pattern on its back leg helps distinguish the adult differential grasshopper from other species.

Peek-a-boo!

Peek-a-boo!  Isn’t she cute?

Before Europeans took over the continent, differential grasshoppers lived mainly in low grasslands, feeding on a wide variety of grasses and wildflowers – but, purportedly, with a particular affinity for giant ragweed.  When the landscape began changing to one dominated by rowcrops, alfalfa, and short-grazed grasslands, it basically created heaven on earth for differential grasshoppers.  Today, they are abundant enough that they can be found almost anywhere across the landscape (at least in Nebraska).  Apparently, they can move as much as 10 miles a day to find food.

One of 108 grasshopper species recognized as native to Nebraska, the differential grasshopper is one of only a small handful that actually cause any economic damage to crops.  All of those grasshopper species – pests or not – are important food sources for birds and many other wildlife species.  In years when differential grasshopper populations are particularly high, they can cause more problems for farmers and gardeners, but also provide even more food for wildlife.

"Don't hate me because I'm beautiful."

“Don’t hate me because I’m beautiful.”

It’s ironic that many traits we admire in people (resilient, adaptable, successful) become indicators of pest-ness when we’re talking about wildlife.  Really, we should give differential grasshoppers some kind of award for their ability to take lemons and make lemonade (that’s just a metaphor, kids).  Hooray for differential grasshoppers!

Unless, of course, they’re eating your sweet corn.