Datei:Jumping spider hunting a grasshopper by Kadavoor.jpg

Aus besserwiki.de

Originaldatei ‎(1.920 × 2.560 Pixel, Dateigröße: 1,56 MB, MIME-Typ: image/jpeg)

Diese Datei stammt aus Wikimedia Commons und kann von anderen Projekten verwendet werden. Die Beschreibung von deren Dateibeschreibungsseite wird unten angezeigt.

Beschreibung
English: Jumping spiders are generally diurnal, active hunters. Their well-developed internal hydraulic system extends their limbs by altering the pressure of body fluid (hemolymph) within them. This enables the spiders to jump without having large muscular legs like a grasshopper. Most jumping spiders can jump several times the length of their bodies. When a jumping spider is moving from place to place, and especially just before it jumps, it tethers a filament of silk (or 'dragline') to whatever it is standing on to protect itself if the jump should fail. Should it fall, for example if the prey shakes it off, it climbs back up the silk tether. Some species, such as Portia, will actually let themselves down to attack prey such as a web spider apparently secure in the middle of its web.

The hunting behaviour of the Salticidae is confusingly varied compared to that of most spiders in other families. Salticids hunt diurnally as a rule, which is consistent with their highly developed visual system. When it detects potential prey, a jumping spider typically begins orienting itself by swivelling its cephalothorax to bring the anterior median eyes to bear. It then moves its abdomen into line with its cephalothorax. After that, it might spend some time inspecting the object of its attention and determining whether a camouflaged or doubtful item of prey is promising, before it starts to stalk slowly forward. When close enough, the spider pauses to attach a dragline, then springs onto the prey.

Having made contact with the prey, hunting Salticidae administer a bite to inject rapidly acting venom that gives the victim little time to react. In this respect, they resemble the Mimetidae and Thomisidae, families that ambush prey that often are larger than the predator, and they do so without securing the victim with silk; they accordingly must immobilise it immediately and their venom is adapted accordingly.

See how this small female jumping spider, Hyllus semicupreus, successfully captured a grasshopper that is much larger and stronger than she is. The grasshopper tried to escape, but the spider immobilized it using the venom she injected, and the "dragline" helped her hold her position with respect to the prey object.
Datum
Quelle Eigenes Werk
Urheber Jeevan Jose, Kerala, India
Genehmigung
(Weiternutzung dieser Datei)
Jeevan Jose, Kerala, India, der Nutzungsrechtsinhaber dieses Werkes, veröffentlicht es hiermit unter der folgenden Lizenz:
w:de:Creative Commons
Namensnennung Weitergabe unter gleichen Bedingungen
Diese Datei ist lizenziert unter der Creative-Commons-Lizenz „Namensnennung – Weitergabe unter gleichen Bedingungen 4.0 international“.
Namensnennung: © 2010 Jee & Rani Nature Photography (License: CC BY-SA 4.0)
Dieses Werk darf von dir
  • verbreitet werden – vervielfältigt, verbreitet und öffentlich zugänglich gemacht werden
  • neu zusammengestellt werden – abgewandelt und bearbeitet werden
Zu den folgenden Bedingungen:
  • Namensnennung – Du musst angemessene Urheber- und Rechteangaben machen, einen Link zur Lizenz beifügen und angeben, ob Änderungen vorgenommen wurden. Diese Angaben dürfen in jeder angemessenen Art und Weise gemacht werden, allerdings nicht so, dass der Eindruck entsteht, der Lizenzgeber unterstütze gerade dich oder deine Nutzung besonders.
  • Weitergabe unter gleichen Bedingungen – Wenn du das Material wiedermischst, transformierst oder darauf aufbaust, musst du deine Beiträge unter der gleichen oder einer kompatiblen Lizenz wie das Original verbreiten.
Exceptions, Limitations, and Disclaimer of Warranties
Exceptions and Limitations:
  • Non-copyright restrictions:
  • Jurisdiction and legality of content: Publication of this media may be in violation of the laws of the country or jurisdiction from where you are viewing this information. I do not encourage the violation of any laws, and cannot be responsible for any violations of such laws, should you link to this media or use, reproduce or republish it.

Disclaimer of Warranties and Limitation of Liability:

  • I, the Licensor, to the extent possible, offer the Licensed Material as-is and as-available, and makes no representations or warranties of any kind concerning the Licensed Material, whether express, implied, statutory, or other. This includes, without limitation, warranties of title, merchantability, fitness for a particular purpose, non-infringement, absence of latent or other defects, accuracy, or the presence or absence of errors, whether or not known or discoverable.
  • Read the full legal code. The human-readable deed is a summary of, but not a replacement for, the legal code. It does not explain everything you need to know before using the licensed material. This deed highlights only some of the key features and terms of the actual license. It is not a license and has no legal value. You should carefully review all of the terms and conditions of the actual license before using the licensed material.
  • I can't offer you any legal advice. See the General Disclaimer, Terms of Use and Reuser's Guide for more information. Please seek a professional advice for the avoidance of doubt, where exceptions and limitations apply to your use, and this Public License does not apply.
  • The disclaimer of warranties and limitation of liability provided above shall be interpreted in a manner that, to the extent possible, most closely approximates an absolute disclaimer and waiver of all liability.

Note: To the extent possible, I, the Licensor waives the right to collect royalties from you for the exercise of the licensed rights, whether directly or through a collecting society under any voluntary, like Wikimedia. In all other cases I, the Licensor expressly reserves the right to collect such royalties. So feel free to mail or talk to me for an unprocessed media file or to get waived any of the restrictions stated above.

Thanks: Thanks for make use of my works; it is always appreciated.

An example on how to reuse this media:
© 2010 Jee & Rani Nature Photography (License: CC BY-SA 4.0)
Andere Versionen
Namensnennung
(von der Lizenz verlangt)
InfoField
© 2010 Jee & Rani Nature Photography. Creative Commons Attribution-ShareAlike 4.0 International License. Wikimedia Commons, the free media repository: https://commons.wikimedia.org/wiki/File:Jumping_spider_hunting_a_grasshopper_by_Kadavoor.jpg.


Kameraposition10° 00′ 10,73″ N, 76° 44′ 00,52″ O Kartographer map based on OpenStreetMap.Dieses und weitere Bilder auf OpenStreetMapinfo

Kurzbeschreibungen

Ergänze eine einzeilige Erklärung, was diese Datei darstellt.

In dieser Datei abgebildete Objekte

Motiv

Koordinaten des Standpunktes

10°0'10.732"N, 76°44'0.521"E

Dateiversionen

Klicke auf einen Zeitpunkt, um diese Version zu laden.

Version vomVorschaubildMaßeBenutzerKommentar
aktuell09:05, 12. Mär. 2014Vorschaubild der Version vom 09:05, 12. Mär. 20141.920 × 2.560 (1,56 MB)wikimediacommons>Jkadavoor{{User:Jkadavoor/desc |Description={{mld |en = Jumping spiders are generally diurnal, active hunters. Their well-developed internal hydraulic system extends their limbs by altering t...

Die folgende Seite verwendet diese Datei:

Metadaten

Diese Datei enthält weitere Informationen, die in der Regel von der Digitalkamera oder dem verwendeten Scanner stammen. Durch nachträgliche Bearbeitung der Originaldatei können einige Details verändert worden sein.

Abgerufen von „http://besserwiki.de/wiki/Datei:Jumping_spider_hunting_a_grasshopper_by_Kadavoor.jpg“