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Izpis gradiva

Naslov:Sand as a medium for transmission of vibratory signals of prey in antlions Euroleon nostras (Neuroptera: Myrmeleontidae)
Avtorji:Devetak, Dušan (Avtor)
Mencinger Vračko, Bojana (Avtor)
Devetak, Miha (Avtor)
Marhl, Marko (Avtor)
Špernjak, Andreja (Avtor)
Datoteke:URL http://www.ingentaconnect.com/content/bsc/pent
 
Jezik:Angleški jezik
Vrsta gradiva:Neznano ()
Tipologija:1.01 - Izvirni znanstveni članek
Organizacija:FNM - Fakulteta za naravoslovje in matematiko
Opis:European pit-building antlions (Euroleon nostras/ Geoffroy in Fourcroy/) detect their prey by sensing the vibrations that prey generate during locomotory activity. The behavioural reactions and some of the physical properties of substrate vibrations in sand are measured to observe signal transmission through the substrate. The frequency range of the signals of four arthropod species (Tenebrio molitor, Pyrrhocoris apterus, Formica sp. and Trachelipus rathkei) is 0.1-4.5 kHz and acceleration values are in the range ▫$400 {mu}m s^{-2} to 1.5 mm s^{-2}$▫. Substrate particle size and the frequency of prey signals both influence the propagation properties of vibratory signals. The damping coefficient at a frequency 300 Hz varies from 0.26 to 2.61 dB ▫$cm^{-1}$▫ and is inversely proportional to the size of the sand particle. The damping coefficient is positively correlated with the frequency of the pulses. Vibrations in finer sand are attenuated more strongly than in coarser sand and, consequently, an antlion detects its prey only at a short distance. The reaction distance is defined as the distance of the prey from the centre of the pit when the antlion begins tossing sand as a reaction to the presence of prey. The mean reaction distance is 3.3 cm in the finest sand (particle size ▫$le 0.23 mm$▫) and 12.3 cm in coarser sand (particle size 1-1.54 mm). The most convenient sands for prey detection are considered to be medium particle-sized sands.
Ključne besede:biology, zoology, receptors, chordotonal organs, vibrations, vibratory signals, transmission of vibrations, reception of vibrations, electrophysiology, substrate vibration, antlions, Myrmeleontidae, sand, substrate vibration, particle size
Leto izida:2007
UDK:591.18:591.4:591.8
COBISS_ID:15465736 Povezava se odpre v novem oknu
ISSN pri članku:0307-6962
Število ogledov:1063
Število prenosov:22
Metapodatki:XML RDF-CHPDL DC-XML DC-RDF
Področja:Ostalo
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Gradivo je del revije

Naslov:Physiological entomology
Skrajšan naslov:Physiol. entomol.
Založnik:Blackwell Scientific Publications
ISSN:0307-6962
COBISS.SI-ID:617039 Novo okno

Sekundarni jezik

Jezik:Angleški jezik
Ključne besede:biologija, zoologija, hordotonalni organ, vibracije, prenašanje vibracij, recepcija vibracij, elektrofiziologija, vibracije substrata, volkci, Myrmeleontidae


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