|
Understanding through Discussion |
|
QuickSearch
|
|
| AdminModulous (Modulous), Asgara (AdminAsgara), Coyote, DrJones*, jar, kjsimons, ooh-child, Tanypteryx (8 members, 383 visitors)
| ||||||
| Chatting now: | Chat room empty | ||||||
| Tom Larkin | |||||||
| anglagard | |||||||
|
| Announcements: | Reporting debate problems OR discussing moderation actions/inactions |
| Thread ▼ Details |
|
|
| Author | Topic: A new road trip | |||||||||||||||||||||||||||||||||||
|
ringo Member  Posts: 13313 From: frozen wasteland Joined: Member Rating: 3.0 |
I learned a new word. 
| |||||||||||||||||||||||||||||||||||
|
NosyNed Member  Posts: 8788 From: Canada Joined: Member Rating: 3.9 |
| |||||||||||||||||||||||||||||||||||
|
Tanypteryx Member  Posts: 1514 From: Oregon, USA Joined: Member Rating: 5.0 |
Nope, I use Photoshop, but too extreme to fix. Thank goodness I took some shots with my 35mm, until now I have been quite happy with my 24mm. What if Eleanor Roosevelt had wings? -- Monty Python One important characteristic of a theory is that is has survived repeated attempts to falsify it. Contrary to your understanding, all available evidence confirms it. --Subbie If evolution is shown to be false, it will be at the hands of things that are true, not made up. --percy The reason that we have the scientific method is because common sense isn't reliable. -- Taq
| |||||||||||||||||||||||||||||||||||
|
Tanypteryx Member Posts: 1514 From: Oregon, USA Joined: Member Rating: 5.0
|
I had to wade out to chest high depth to get close enough and then waited while this male landed on other lilypads too far away to shoot. The first time he was in range a female showed up and the male flew up and grabbed her and then they flew off out of sight while they mated. This was at Spaulding Pond, Jackson County, Wisconsin.
What if Eleanor Roosevelt had wings? -- Monty Python One important characteristic of a theory is that is has survived repeated attempts to falsify it. Contrary to your understanding, all available evidence confirms it. --Subbie If evolution is shown to be false, it will be at the hands of things that are true, not made up. --percy The reason that we have the scientific method is because common sense isn't reliable. -- Taq
| |||||||||||||||||||||||||||||||||||
|
Tanypteryx Member Posts: 1514 From: Oregon, USA Joined: Member Rating: 5.0
|
This is an Erpetogomphus disignatus, (the Eastern Ringtail), female in an uncut barley field at the Hardware River Wildlife Management Area, Fulvanna County, Virginia, 9-Jun-17. It was partly cloudy and whenever the sun was hidden the dragonflies would perch in a mostly horizontal posture. There were dozens of dragonflies of several different species hanging out in the field. This was about 1:30 pm and the temperature was in the 90s.
Within seconds of the sun hitting them, they repositioned themselves with their abdomen pointing directly at the sun to limit the surface area exposed to direct sunlight. This behavior is known as obelisking. This is a male Erpetogomphus disignatus.
At this time Odonate systematics recognizes around 22 Erpetogomphus species. I say "about" because we are unsure if several closely related species/populations are sub-species or unique species. They are different enough that we take note of it, but we don't know for sure if they are in the same individual clade or sister/parent/offspring clades. Eventually, maybe a grad student will spend a year or two studying them and find out. What if Eleanor Roosevelt had wings? -- Monty Python One important characteristic of a theory is that is has survived repeated attempts to falsify it. Contrary to your understanding, all available evidence confirms it. --Subbie If evolution is shown to be false, it will be at the hands of things that are true, not made up. --percy The reason that we have the scientific method is because common sense isn't reliable. -- Taq
| |||||||||||||||||||||||||||||||||||
|
NoNukes Member  Posts: 9720 From: Central NC USA Joined: Member Rating: 2.9
|
Complete waste of time and money!! Any Creationist could tell you that they are all the same buggy kind. Lol. Great pictures again! I appreciate that you waded out in that brackish water just for me. Under a government which imprisons any unjustly, the true place for a just man is also in prison. Thoreau: Civil Disobedience (1846) History will have to record that the greatest tragedy of this period of social transition was not the strident clamor of the bad people, but the appalling silence of the good people. Martin Luther King I never considered a difference of opinion in politics, in religion, in philosophy, as cause for withdrawing from a friend. Thomas Jefferson Worrying about the "browning of America" is not racism. -- Faith Some of us are worried about just how much damage he will do in his last couple of weeks as president, to make it easier for the NY Times and Washington post to try to destroy Trump's presidency. -- marc9000
| |||||||||||||||||||||||||||||||||||
|
Tanypteryx Member Posts: 1514 From: Oregon, USA Joined: Member Rating: 5.0
|
The reflections on the wings demonstrate that they are not flat, but offset and braced in such a way as to provide longitudinal strengthening without adding additional mass. This gives differential flexibility from base to tip and from front to back and is the key to the acrobatic flight abilities of odonates.
The cast skin of the nymph is called an exuviae.
This is a female from a post last year. Dragonfly adults normally take a week or so of feeding and flight in the sun to get their mature coloration.
What if Eleanor Roosevelt had wings? -- Monty Python One important characteristic of a theory is that is has survived repeated attempts to falsify it. Contrary to your understanding, all available evidence confirms it. --Subbie If evolution is shown to be false, it will be at the hands of things that are true, not made up. --percy The reason that we have the scientific method is because common sense isn't reliable. -- Taq
| |||||||||||||||||||||||||||||||||||
|
|
Do Nothing Button
Copyright 2001-2015 by EvC Forum, All Rights Reserved
™ Version 4.0 Beta
Innovative software from Qwixotic © 2017
