<< Previous Next >>

Aeshna juncea female


Aeshna juncea female
Photo Information
Copyright: Helmut Roos (buscape) Gold Star Critiquer/Silver Workshop Editor/Gold Note Writer [C: 355 W: 20 N: 1518] (7615)
Genre: Animals
Medium: Color
Date Taken: 2011-09-28
Categories: Insects
Camera: Nikon D40X, AF-S DX VR Zoom-Nikkor 55-200 mm f/4-5.6
Exposure: f/8, 1/200 seconds
Details: (Fill) Flash: Yes
More Photo Info: [view]
Photo Version: Original Version
Date Submitted: 2011-11-25 1:16
Viewed: 2325
Points: 22
[Note Guidelines] Photographer's Note
English:

Class: Insecta; Order: Odonata; Family: Aeshnidae;
Genus: Aeshna; Species: Aeshna juncea

Aeshna juncea (Linnaeus, 1758), the Common Hawker or Sedge Darner is one of the larger species of hawker dragonflies. It is native to Eurasia and northern North America. The flight period is from June to early October.
The Characteristics:
It is 74 mm long with a brown body. The male has a black abdomen with paired blue and yellow spots on each abdominal segment, and narrow stripes along the dorsal surface of the thorax. In the female, the abdomen is brown with yellow or sometimes green or blue spots. The wings of both sexes display a yellow costa (the major vein running along the leading edge of the wings). This species lacks the green thorax stripes of the Southern Hawker.
The Reproduction and Development:
Adults are highly mobile and can be seen hunting well away from breeding sites. Favoured feeding areas are along edge of trees often flying at canopy level. At breeding areas males are territorial but at low densities. Patrol low down searching for females.
Females lay eggs alone whilst perched at edge of water. Eggs are inserted into plants or wet substrate. Eggs hatch after winter diapause. Development takes a minimum of two years but in colder areas may take 4 years. Larvae live amongst vegetation and capture prey by ambush, or less frequently by pursuit. Emerges at night close to edges of pools in low vegetation.
Flight period from mid June to October, preferred environment includes oligotrophic and mesotrophic pools and small lakes in blanket bog, raised bog and locally in fens.
The Distribution:
Ranged throughout northern and central Europe with some isolated populations in southern Europe. Also across northern Asia to Japan and northern North America from Alaska to Newfoundland.
The Protection Status:
Common and abundant throughout its range.

Source: Wikipedia

-------------------------------------------------------

Deutsch:

Klasse: Insekten; Ordnung: Libellen; Familie: Edellibellen; Gattung: Mosaikjungfern; Art: Torf-Mosaikjungfer
Die Torf-Mosaikjungfer (Aeshna juncea) ist eine Libellenart aus der Familie der Edellibellen (Aeshnidae), welche der Unterordnung der Großlibellen (Anisoptera) angehören. Es handelt sich bei der Torf-Mosaikjungfer um eine große Libelle mit einer Flügelspannweite von maximal 10,5 Zentimetern
Merkmale:
Die Torf-Mosaikjungfer erreicht Flügelspannweiten von 9 bis 10,5 Zentimetern und gehört damit zu den größten Libellen Mitteleuropas. Der Brustabschnitt (Thorax) der Tiere ist graubraun gefärbt und besitzt gelbe Seiten- und Dorsalstreifen. Verwechslungsgefahr besteht mit der Hochmoor-Mosaikjungfer (Aeshna subarctica) sowie mit jungen und noch nicht ausgefärbten Exemplaren der Blaugrünen Mosaikjungfer (Aeshna cyanea). Der Hinterleib (Abdomen) der Männchen ist schwarz mit einer deutlichen und sehr kräftigen blauen Zeichnung auf der Oberseite.
Lebensweise:
Die Torf-Mosaikjungfer ist in den Monaten Juli bis September aktiv und hauptsächlich an Moorgewässern zu finden. Besonders am späten Nachmittag sonniger Tage findet man die sonnenden Männchen auf Baumstämmen. Die Männchen patrouillieren häufig entlang der Ufer, wo sie aktiv nach Weibchen suchen. Die Paarung beginnt über dem Wasser und endet meistens in der Vegetation. Das Weibchen sticht die Eier in Pflanzen nahe der Wasseroberfläche ein.
Bedrohung:
Vor allem durch die zunehmende Zerstörung der Moorgewässer, insbesondere die Trockenlegung derselben, verliert diese Libelle wie viele andere Moorarten ihren Lebensraum. Sie wird aus diesem Grunde in Deutschlands Roter Liste in die Gefährdungskategorie 3 - Gefährdet - eingeordnet.

Quelle: Wikipedia

joska, ramthakur, maaciejka, marius-secan has marked this note useful
Only registered TrekNature members may rate photo notes.
Add Critique [Critiquing Guidelines] 
Only registered TrekNature members may write critiques.
Discussions
None
You must be logged in to start a discussion.

Critiques [Translate]

  • Great 
  • joska Gold Star Critiquer/Gold Note Writer [C: 806 W: 0 N: 4092] (22535)
  • [2011-11-25 1:24]

Hi Helmut,
Excellent photo of this Dragonfly, great lights and very fine colorful details, interesting reflections in the water too, TFS!

Ciao Helmut, beautiful macro of lovely dragonfly, fantastic colors, fine details and splendid sharpness, very well done, my friend, have a good week end, ciao Silvio

  • Great 
  • lousat Gold Star Critiquer/Gold Star Workshop Editor/Gold Note Writer [C: 6595 W: 89 N: 15659] (65489)
  • [2011-11-25 2:41]

Hi Helmut,how is nice the position and the point of view to take the reflections in the water! Magnificent work,very brilliant colors and excellent sharpness and a very unusual situation too.Have a nice day and thanks,Luciano

Nice play of light, excellent detail and good colours. Good to see the ovipositing.
regards yiannis

barthatibor
Hello Helmut
Wonderful close-up shot of this beatiful dragonfly with in superb colours and sharpness details,great liggting.
Best regards
Tibi

Great capture with the reflection of the Dragonfly on water, Helmut. Despite slight noise in the BG, the picture looks beautiful.
TFS
Ram

  • Great 
  • siggi Gold Star Critiquer/Gold Star Workshop Editor/Gold Note Writer [C: 3097 W: 109 N: 12399] (52850)
  • [2011-11-25 6:57]

Hello Helmut.
This is a superb shot - interesting, unusual and of the highest quality. Fantastic timing to capture this Common Hawker as she lays her eggs. a beautiful view of her face, wings and body. The reflection is very good.Best regards Siggi

Hello Helmut
Interesting scene and beautiful photo with very good composition, wonderful colours and impressive sharpness.
Regards,
Christodoulos

Hi Helmut,
very nice and interesting photo of this specie taken from very good point of view. Nice natural colours.
Have a nice weekend,
Maciek

Hello Helmut,
Very nice photo with razor sharp details and perfect focus.
Excellent composition and nice reflection in the water of this dragonfly.
Thanks for sharing!
Marius.

Ciao Helmut. Good colours and light and interestin enviroment. Too noised MF!

Roberto

Calibration Check
















0123456789ABCDEF