Praying Mantids as Symbols for Headhunting

Are web stabilimenta attractive to praying mantids?

Certain species of orb-weavers add extra silk structures, termed a stabilimentum or web decoration, to their webs. In the genus Argiope stabilimenta are silken structures of densely woven zig-zag ribbons. The adaptive value of these stabilimenta is still unclear and controversially discussed. In the course of time, many functional hypotheses have been proposed for silk stabilimenta. Because of ...

Female praying mantids use sexual cannibalism as a foraging strategy to increase fecundity

Several hypotheses have been proposed to explain the evolution of sexual cannibalism. The foraging strategy hypothesis states that sexual cannibalism may arise as an adaptive foraging strategy, providing females with the nutrients to increase future fecundity. Yet, very few studies have found that nourishment through cannibalism translates into increased fecundity. One explanation for this may ...

Multimodal mate assessment by male praying mantids in a sexually cannibalistic mating system

Free-flight encounters between praying mantids (Parasphendale agrionina) and bats (Eptesicus fuscus).

Through staged free-flight encounters between echolocating bats and praying mantids, we examined the effectiveness of two potential predator-evasion behaviors mediated by different sensory modalities: (1) power dive responses triggered by bat echolocation detected by the mantis ultrasound-sensitive auditory system, and (2) ;last-ditch' maneuvers triggered by bat-generated wind detected by the m...

Automatisiertes Headhunting im Web 2.0: Zum Einsatz intelligenter Softwareagenten als Headhunting-Robots

Der Beitrag skizziert aus Entwurfsperspektive ein automatisiertes agentenbasiertes Headhunting-System für Online Social Networks (OSN). Dabei werden neben der grundsätzlichen Projektidee makround mikroökonomische Modellierungsaspekte des Headhunting-Systems beleuchtet. Im Ergebnis zeigt sich, dass deliberative intelligente Softwareagenten prinzipiell geeignet sind, Headhunting-Aktivitäten im Be...