|[Note Guidelines] Photographer's Note|
|from our garden...|
When you have attracted their attention, they follow you with their big eyes. They are friendly little creatures that always like to jump on your camera or your fingers.
Their life in the warm radiation of the sun have produced a variety and coloration not matched by any other spider. Most salticids, 4000 or more species, live in the tropics although less abundant, 75 species, can also been found here in Europe.
The salticids live for the most part on vegetation. The rectangular thorax, stout body, the rather short legs, their distinctive eye arrangement and their jumping capabilities make them one of the most easily recognizable families. Some species exhibit an amazing resemblance with ants and are called "ant like " spiders. They belong to the genus Myrmarachne. This one was found in Australia. Because of its resemblance to ants, it can walk between them without being attacked.
The spider can be found everywhere if the sun is shining, on trees, grass and rocks. At night or during rainfall the spiders hide in a dry spot under a small web.
Their large eyes give them excellent eyesight. As most spiders they also have four pairs of eyes. Two large ones in de middle and two small ones are looking forward. Above the front row is a second row of two tiny eyes and behind these there is a set of two large eyes looking upward. All these eyes give them a 360-degree eyesight. Spiders have singular eyes like mammals, unlike the insects that have compound eyes. The eyes can move out or inwards for focusing and they can turn up and down and left and right. The spider can also turn its carapace (breast) more than 45 degrees to look around.
Prey can be noticed from a distance of about 30 - 40 cm. At a distance of 20 cm the spider turns its body so that the two front eyes points to the insect. The muscles in the eye focus the eye on the prey and the eye moves around their optical axis. In this way the spiders scans the object like a modern scanner. The effect is extraordinary. The eyesight is enhanced like a zoom lens and it is capable to adjust its looking angle from 10 to 60 degrees. In experiments it was shown that the spider is capable to distinct dangerous insects and prey. The eyes are also capable to see color. After the object is recognized as eatable the spider carefully moves towards it victim.
These infos from here:
dew77, fiyo, ALIRIZA, firelord, pitai has marked this note useful
Only registered TrekNature members may rate photo notes.
|To odin: Neat image||eruyanik
|You must be logged in to start a discussion.|
- [2006-03-07 4:55]
Very nice close up.Details,POV,blurred BG,clear eyes and
expression on spiders face are wonderful.TFS...:-)
- [2006-03-07 9:29]
Nice shot Ersin, The composition are very good, nice details on the spider too. The bg are great too, but it have too much noise. You can reduce noise with a little freeweare named Neat Image, Try it, it free and easy to use. Well Done
- [2006-03-07 13:15]
superb macro; Great POV and DOF, good pose, details and sharpness
- [2006-03-08 17:53]
Very nice macro, wonderful details,I like the green colors,good photo.
I wait more photos, tips, comment and critique of you.
Saludos desde MEXICO...RICARDO.
Hi Ersin ,
Congratulations...Marvelous macro, nice close up. Good details, nice colors, POV, sharpness and framing are magnificent.TFS...
Looks like Santa Claus got really evil this year...
- [2006-04-15 12:05]
Very nice close up, So close you can even feel the look of the eyes. Very nice colors and DOF. Maybe you could filter the noise on the background. A superb work my friend!!!
I feel the spider even had a face expression. lol. Well done, Gabriel