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Effects of larval antlions Euroleon nostras (Neuroptera, Myrmeleontidae) and their pits on the escape-time of antsDevetak, DušanPit-building antlions are predators with a unique predation strategy, namely using pitfall traps constructed in loose sand to catch prey. Here, prey escape-time in the field is measured by ... introducting ants into one of four different treatment arenas. The first treatment lacks pits and antlions, the second includes 10 antlions that did not build pits, the third comprises eight artificially constructed pits, and the fourth is a treatment of eight antlions in pits and two without pits. Their pits are of a similar size to those used in the third treatment. When antlions are present without constructing pits, they impede the dispersal of prey. The mean escape-time for one half of the released ants is twice as long with antlions present as without them. When pits are present, the time taken for one half of the released ants to escape the predator is more than 10 times as long as when pits are absent. Escape-time from artificial pits is three times that from nonpit building antlions. Pits hinder the escape of ants and therefore increase the amount of time that the prey is available for capture. In the area where the pits are occupied by antlions, escape-time is four times longer than in a treatment with similar sized artificial pits. Thus, it appears that not only a pit, but also the presence of antlions influences the capture successVir: Physiological entomology. - ISSN 0307-6962 (30, 2005, str. 82-86)Vrsta gradiva - članek, sestavni del ; neleposlovje za odrasleLeto - 2005Jezik - angleškiCOBISS.SI-ID - 13844488
Avtor
Devetak, Dušan
Teme
zoologija |
favna |
pajki |
volkci |
Euroleon nostras |
Neuroptera |
plenilci |
lov |
zoology |
fauna |
spiders |
antlions |
Euroleon nostras |
Neuroptera |
prey capture |
pit building
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Baze podatkov, v katerih je revija indeksirana
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Povezave do osebnih bibliografij avtorjev | Povezave do podatkov o raziskovalcih v sistemu SICRIS |
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Devetak, Dušan | 03517 |
Vir: Osebne bibliografije
in: SICRIS
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