Venom-spraying behavior of the scorpion Parabuthus transvaalicus (Arachnida: Buthidae)

•Venom spraying by Parabuthus transvaalicus is most likely under their behavioral control.•Scorpions are likely to spray when contact is accompanied by airborne stimuli.•The spraying pattern increases the possibility of venom contact with a predator’s eyes.•Venom spraying likely serves an antipredat...

Ausführliche Beschreibung

Gespeichert in:
Bibliographische Detailangaben
Veröffentlicht in:Behavioural processes 2015-06, Vol.115, p.46-52
Hauptverfasser: Nisani, Zia, Hayes, William K.
Format: Artikel
Sprache:eng
Schlagworte:
Online-Zugang:Volltext
Tags: Tag hinzufügen
Keine Tags, Fügen Sie den ersten Tag hinzu!
Beschreibung
Zusammenfassung:•Venom spraying by Parabuthus transvaalicus is most likely under their behavioral control.•Scorpions are likely to spray when contact is accompanied by airborne stimuli.•The spraying pattern increases the possibility of venom contact with a predator’s eyes.•Venom spraying likely serves an antipredator function that is modulated by level of threat. Many animals use chemical squirting or spraying behavior as a defensive response. Some members of the scorpion genus Parabuthus (family Buthidae) can spray their venom. We examined the stimulus control and characteristics of venom spraying by Parabuthus transvaalicus to better understand the behavioral context for its use. Venom spraying occurred mostly, but not always, when the metasoma (tail) was contacted (usually grasped by forceps), and was absent during stinging-like thrusts of the metasoma apart from contact. Scorpions were significantly more likely to spray when contact was also accompanied by airborne stimuli. Sprays happened almost instantaneously following grasping by forceps (median=0.23s) as a brief (0.07–0.30s, mean=0.18s), fine stream (
ISSN:0376-6357
1872-8308
DOI:10.1016/j.beproc.2015.03.002