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Measuring plants at Hegg Lake

Here’s a photo of the measurers and datatakers at the Hegg Lake common Garden on July 26th.
IMG_4540w.JPG
(L to R) Kneeling: Amy, Amy, Jennifer. Standing: Gretel, Ian, Andy, Ruth, Julie, Josh, Rachel, Colin, Jameson. Photo by Stuart–he measured too.

The weather for measuring turned out to be much nicer than predicted: Temp 85 degrees F; dewpoint: 70 degrees F; mostly cloudy with a W wind at 13 mph. It started raining, so we packed up to leave. As we were walking out the rain stopped, so we paused to take this photo. After the photo, it started to rain again.

We measured plants efficiently. Most plants have two leaves and the longest is 8-19 cm tall. It can be very difficult to find a plant because the thick grass is about 50 cm high. The only way to find it is to measure from another Echinacea plant. The ~4000 plants are spaced on 1m apart on a 80m x 50m grid. That can seem like a vast distance between plants. Jennifer made measuring sticks 2 meters long to help us stay on line and find the plants. After finding two plants you could keep on line fairly well and go fast. If there was a missing plant or a particularly sneaky plant, then it was very easy to get disoriented. Some folks worked in pairs (one measuring, one taking data); others solo. Here’s a photos of folks at work…

Categories in Pendragon CG Monitor Forms

i started this flog entry last year and never finished it. I’m just going to publish it as it is…

To streamline the process and get everyone on the same page i’m compiling photographs of all the different categories that we are noting in association with Echinacea plants.

Status
Can’t Find
Flowering
DSCF0133.JPG
Basal
Staple
Dead Lvs (this year’s)
Blue Stake Only

Insects
aphids
DSCF1209.JPG
ants
DSCF1209.JPG
ant nest
DSCF001400.JPGDSCF001500.JPGDSCF001600.JPGDSCF002100.JPG
egg sac

wht fuzzy
white fuzzy.bmpDSCF1231.JPG
spittle

thorn hopper
DSCF0133.JPG DSCF1320.JPG
beetle
ladybird.bmp
soldier beetle.bmp

grasshopper

leaf miner

????????????

pupa
DSCF001100.JPG
rolled lf

Disease
yellow lf

purple lf
purp lf.JPG purp&dud.JPG

deformed lf

dead lf

Insect Damage
Nibbles
DSCF1209.JPG nibbles.JPG

Holes
DSCF1209.JPG

Wrinkles

1 lf minor
1 lf half-gone
1 lf gone

Other Damage
crisp lf

1 lf minor
1 lf half-gone
1 lf gone

1 mowed lf

1 burned tip

CGhead-info-07sub

Head Status
dud
DUD.bmp dud.JPG purp&dud.JPG

no fls
broken off
headbrokenoff.JPG
crisp
bent
tilted
vertical developmnt, no hd
veritical.JPG verticaldevelopment.JPG

indented
indented.bmp

normal

Insects on hd
aphids
DSCF0632.JPG DSCF0633.JPG

ants

ant nest

white gunk
white gunk.bmp
cat frass

egg sac

wht fuzzy

long-legged bug

larva

beetle

pupa

thorn hopper

spittle

grasshopper

Insect Damage
Nibbles

Disease (head)
no rays

whole hd weird

weird tufts

Tough Team Echinacea

At last, after car trouble aborted my trip last week, I made it back out to Douglas County to join in field work with Team Echinacea. What a difference from the 2 days in late May, when Stuart, Jennifer, Andrea, Amy Mueller, and I were there searching for seedlings in the remnants! On Wed, the team numbered 12, and we made great headway measuring plants in the common garden. We were undaunted by the heat and humidity, though we did welcome every breeze. Today, we had the benefit of clouds all morning, and 13 of us measured quite a few plants at the Hegg Lake experimental site before rain, which we’d been seeing in the distance all morning, chased us in for lunch. The weather canceled field work for the afternoon, but we received instruction from Rachel about the upcoming work to evaluate species composition at her research sites, and I conferred with Stuart on analysis of pollinator visitation data before I headed back to the Twin Cities. I enjoyed the opportunity to meet the new members of the crew and working with them and look forward to the next time.

First week and half in Minnesota

Hi all,
So I arrived up at the field site about a week and half ago to finish up monitoring flowering and help out with measuring and demo. Except for the recent death of my computer’s hard drive it has been an excellent start to my field season. As you may know flowering was about a week earlier this year with many more flowering heads than expected. I would have estimated around 800 (max) flowering heads but we had over 1,100 flowering in the common garden. Last year was also a huge flowering year (over 1,300 heads) because it was a burn year. I am excited to now have two years of flowering data on a large of plants in the common garden.

We have spent a large part of the last week I have been here measuring both in the common garden and at the hegg lake common garden. The hegg lake common garden was established back in May of 2006 to as part of my graduate research. It is about 6 miles from the main common garden on Minnesota DNR land. It has around 4,000 plants planted on a 1m X 1m grid. Today we had the entire field crew out at hegg lake measuring for a total of 13 people and measured nearly half of the entire plot just today…it was great!

Besides the field work I have been keeping myself busy in rural Minnesota by fishing (Ian has promised that I will actually know how to fish by the end of the summer), playing poker, and going to a dirt track race. In the near future I plan on flogging all non-Echinacea related activities that can be done in rural Minnesota….however now I’m tired so it will have to wait until the weekend.
Night!
Jennifer

Wasp Video

For my most recent blog entry I’ve made a video. It is what I believe to be a Bembix wasp digging a nest. I filmed it on the backside of the Andes hill in a really dry and sandy area. I edited it down a lot. Originally there were about 24 minutes of video, but I cut a lot of the digging out as well as time in which the bee was not visible. The link for the video is http://www.youtube.com/watch?v=wskx8EKbeo0 . Make sure to have speakers on for it, but if the music isn’t your thing and you simply want to bask in the quiet glory of the wasp, watch it without sound.

Heat, Humidity, and Harry Potter

After a brief retreat, during which I completed the seventh installment of Harry Potter, I’m returning to the world of field work, flogging and fun. [The book, by the way, was excellent, and I’m excited and willing to discuss it with anyone who has also read it, or who wishes the ending to be spoiled. Also, I want to give props to my younger sister, who predicted the ending with remarkable accuracy.]

This week we’ve been battling some classic Minnesota summer weather. The whole week has been extremely hot, and exceptionally muggy. To the consternation of some and relief of others, we switched our working hours to be an hour earlier so as to avoid some of the afternoon heat. Driving into work one day, we heard the MPR weathercaster announce that there were going to be “sauna-like conditions” and recommended that people stay inside and avoid strenuous activity. The hardy members of Team Echinacea persevered undaunted however, and we made good progress in the monitoring of the Common Garden and at Jennifer’s plots at Hegg Lake. We welcomed back team members Rachel and Amy Mueller, and also received a visit from Ruth Shaw, who was valuable addition during this hot week, and who also came to Kensington bearing delicious lemon poppy seed cake.

Massive picture update

Now that I’ve gotten a new toy, I’ve gotten several more pictures. Not all of them are with this fun lens though.

IMG_0958.JPG

Let’s start with the sex. Tittilating thorn hoppers! Mating monarchs! Lusty Lepidopterans!

Then there are the critters I don’t recognize. This looks to me like some beetle larva (but I really have no idea). Shiny beetle on some thistle.

Jameson has just informed me that these are thorn hopper larva. Around the Andes Tower property, we came across a spider having a meal of a dragonfly. Don’t forget tiger beetles.

As for our plant portaits, I’ve got some Asclepias speciosa, showy milkweed. Allium has some pretty neat flowers. Like Earl Grey tea? Then you’ve had some of the tasty wild bergamot, Monarda fistulosa. The common garden has quite a bit of Solidago rigida, or stiff goldenrod.

So You’re Telling Me They’re Not Bees?

Do You Know What Kind of Insect This Is?

Team Echinacea sure didn’t until some crafty web searching informed us that these mysterious holed creatures are the larvae of Tiger Beetles. A frustrating day a few weeks ago was spent trying to figure out what lived in these 1 centimeter in diameter holes. Careful observation seemed to disprove what we had always assumed before; that they belong to the solitary bees that pollinate the Common Garden. You know what they say about when you assume…

What you can see is the underside of its head, as is visible in the diagram below.

larva.jpg
(Diagram from Westminster College)

The larva at the top is sitting and waiting for something edible to walk by before it attacks. Apparently the bottom one confused the nearby rock with actual prey. This footage was acquired in the common garden with the assistance of excess equipment from Team Video.

Had that rock actually been an ant the larva would pull it to the bottom of its hole (which can be up to 1 meter long) and devour it. Later it will fling the indigestible exoskeleton out. Additional footage captured the larvae flinging dirt out while expanding its home. Simply more information about the inhabitants of the Common Garden.

Echinacea slideshow

click here for the slideshow

beetacu;ar.jpg

Orchid Hunting

On July 9th Team Echinacea temporarily became Team Platanthera. That is to say, we journeyed c. 170 miles northwest of our usual study area, around Kensington, to the Nature Conservancy’s Pembina Trail Preserve near Fertile, MN. Here we searched for Platanthera praeclara, the elusive Western Prairie Fringed Orchid. The WPF orchid is a midwestern prairie wildflower that has been listed as federally threatened since 1989. For more information about the WPF, where it persists, and why it is threatened, check out this link .

Gretel has been surveying the population at Pembria for the past several years to track changes over time and to better understand the effect of management techniques such as burning and mowing. Though prone to wide population fluctuations, this year we found an exceptionally low number of orchids – 151 between the two plots (108 and 43).

As usual, the day did not close without Team Echinacea/Platanthera hijinks. While wading in a drainage ditch, Jameson picked up a leech between his toes which Ian subsequently, and stalwartly, removed. We also stopped for pizza on the way home. Not to toot my own horn, but my recommendation (jalapeño and pineapple), though widely scoffed at initially, went over quite well with those who partook.

Finally, I leave you with these few pearls:
When the emotions are strong one should paint bamboo; in a light mood one should paint the orchid. – Chueh Yin

Inspired teachers … cannot be ordered by the gross from the factory. They must be discovered one by one, and brought home from the woods and swamps like orchids. They must be placed in a conservatory, not in a carpenter shop; and they must be honored and trusted. – John Jay Chapman

“When two friends understand each other totally, the words are soft and strong like an orchid’s perfume��? – anon

“A human being isn’t an orchid, he must draw something from the soil he grows in��? – Sara Jeannette Duncan