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Common Bluetail!


Common Bluetail!
Photo Information
Copyright: Kiran K V (sunkirana) Gold Star Critiquer/Silver Workshop Editor/Gold Note Writer [C: 137 W: 29 N: 199] (1143)
Genre: Animals
Medium: Color
Date Taken: 2007-12-15
Categories: Birds
Camera: Sony Alpha 100, Sigma 105 Macro EX
Exposure: f/2.8, 1/400 seconds
More Photo Info: [view]
Photo Version: Original Version
Theme(s): Art of Procreation [view contributor(s)]
Date Submitted: 2007-12-18 8:55
Viewed: 3253
Favorites: 1 [view]
Points: 14
[Note Guidelines] Photographer's Note
The ones in the picture here are the "Senegal Golden Dartlets" or "Ischnura senegalensis",though native to africa, are spread through southern and eastern Asia. Also known as "Ubiquitous Blutail". As native to Bangalore now as to "Senegal".

The male is in the front. He uses his anal claspers to grab onto the female's neck and she uses the tip of her abdomen to gather his sperm.

Most odonates are sexually dimorphic when they mature. Newly emerged males and females are similarly coloured. Males acquire bright colouration as they become sexually mature. Colours and patterns on the wings and body may play an important role in territoriality and courtship. Courtship is more evident in damselflies than in dragonflies. It ranges from simple submissive posture by males towards approaching females to elaborate displays where the male flies towards an egg laying site and allows itself to be carried by the water current for a short distance.

Competition over sexually receptive females is very intense among male odonates. A receptive female adopts a characteristic posture towards a potential male and pairing follows immediately. The last abdominal segments of the male have claspers, which are used to hold the female by her thorax. The structure of the female thorax is such that the male clasper fits exactly into it. This lock and key mechanism prevents mating across closely related species. During copulation or just before that, the male transfers his sperms into an accessory genital organ at the second abdominal segment. This accessory genitalia is a complicated harpoon shaped structure, which can be used to remove sperms from previous couplings before insemination. Multiple mating in both males and females is common among odonates.

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ThreadThread Starter Messages Updated
To batu: Thank you for the information!sunkirana 1 12-18 09:20
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Critiques [Translate]

  • Great 
  • batu Gold Star Critiquer/Gold Star Workshop Editor/Gold Note Writer [C: 1079 W: 293 N: 4497] (16383)
  • [2007-12-18 9:17]
  • [+]

Hello Kiran,
you show a beautiful clear and brilliant picture of that damselfly couple. It is technically and artistically perfect. Composition and colours are excellent.
The red dot at the female's thorax is a parasitic mite.
Best wishes, Peter

  • Great 
  • Arjun Gold Star Critiquer/Gold Note Writer [C: 358 W: 7 N: 1237] (7593)
  • [2007-12-18 9:27]

Hi,
beautiful picture.Xcellent compo great lighting and beautiful macro.perfect BG.great shot.
TFS

  • Great 
  • Alex99 Gold Star Critiquer/Gold Star Workshop Editor/Gold Note Writer [C: 4072 W: 133 N: 7096] (23735)
  • [2007-12-18 10:40]

Hi Kiran.
Amazing subject and perfect reproduction. I like well separation the main subject from BG. I like crisp sharpness of the insects and stems, extremely smooth nice BG and perfect POV and composition. My compliments and TFS.
Alexei.

Dear Kiran, Perfect shot, Amazing level of details, Fantastic illustration. Great notes. Very well done. Congratulations ! With Best Regards.vab.

Excellent composition,TFS.
Rishabh

Hi kiran,

Amaging shot and perfect!
You capture well and it's very good on the color tone/contrast, sharpness and composition.
And, it's comfortable about the color contrast between the front and the background.

Thanks for sharing!

Regards,
mikio

Hello Kiran,
Colourful happening throug good exposure and natural light.
TFS
Annick

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