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Broad-bodied Chaser (female)


Broad-bodied Chaser (female)
Photo Information
Copyright: Anghel Eliz (eliz) Gold Star Critiquer/Silver Workshop Editor/Gold Note Writer [C: 167 W: 20 N: 271] (1537)
Genre: Animals
Medium: Color
Date Taken: 2008-05
Categories: Insects
Camera: Canon EOS 400D, Canon EF 100-400mm f/4.5-5.6 L IS USM, RAW ISO 200
Exposure: f/7.1, 1/125 seconds
Photo Version: Original Version
Theme(s): My Insects [view contributor(s)]
Date Submitted: 2008-08-06 10:57
Viewed: 3855
Points: 4
[Note Guidelines] Photographer's Note

SPECIES NAME:
Libellula Depressa (lat.) // Broad-bodied Chaser [female] (en.)


Habitat:
The Broad-bodied Chaser tends to be found by ponds and shallow lake margins. They are rarely found in rivers and canals.

Seasonality / Flight Period:
Adults generally fly from early May to mid-August, but early and late records would be particularly interesting - if you are not sure, please send a photograph with your record.

Life Cycle:
Mating is very brief and usually takes place in the air, lasting only a few seconds. The female will then lay her eggs by dabbing the tip of her abdomen at the surface of the water, while the male guards her by hovering close by. The eggs hatch after a couple of weeks and the dull brown, hairy larva (or nymph) will live underwater for 1-3 years. When fully grown, the larva will climb out of the water onto a leaf or twig and the beautiful winged adult will emerge from the dull larval case. As adults, they only live for about a month, at most.

Behaviour:
Males are very territorial and aggressive as they fly over their ponds and chase off not only rival males but also any other larger dragonflies that intrude into their territory. They adopt lookout perches to which they return consistently day after day in between territorial flights. Females are usually only seen over water when egg laying. Mating takes place in the air and the female lays her eggs in floating and submerged pondweeds. During egg laying the female hovers a few centimetres above the water surface and lays eggs individually onto the weeds as she swoops down repeatedly in a circular movement, lays her egg and returns to her hovering position.

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EXIF info:
Camera: Canon 400D
AF mode: One-Shot
Metering Mode: Partial
Exposure Bias: +0.33 Hardware, +0.17 Software
Focal Length: 400mm
Shutter Speed: 1/125
F-Stop: f/7.1
ISO: 200
Flash: No
Support: Handheld

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I tried a little experiment, creating the picture frame using patterns from the image itself

I put a wikimapia link with a precision of maximum 10 meters to the exact location where i shoot this picture (wow!):
http://www.wikimapia.org/#lat=45.6650949&lon=21.5783179&z=18&l=0&m=a&v=2


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Critiques [Translate]

  •      
  • nagraj Gold Star Critiquer/Gold Star Workshop Editor/Gold Note Writer [C: 1618 W: 106 N: 3208] (15166)
  • [2008-08-06 23:01]

hi eliz,
excellent details on this chaser, perfectly poised against the nice BG.tfs.
nagraj.v

  • Great 
  • surub (159)
  • [2008-08-08 10:34]

Bravo domnule, interesant camp de profunzime la lentila asta.

Superba captura. Imi place in mod deosebit lumina de pe corpul insectei. Foarte faine culori si Bg.

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