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Chemical ecology of oil palm bunch m...

Sasaerila, Yorianta.

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Chemical ecology of oil palm bunch moth, Tirathaba mundella (Lepidoptera: Pyralidae) and nettle caterpillars, Darna bradleyi, D. trima, Setothosea asigna and Setora nitens (Lepidoptera: Limacodidae).

Record Type:	Electronic resources : Monograph/item
Title/Author:	Chemical ecology of oil palm bunch moth, Tirathaba mundella (Lepidoptera: Pyralidae) and nettle caterpillars, Darna bradleyi, D. trima, Setothosea asigna and Setora nitens (Lepidoptera: Limacodidae)./
Author:	Sasaerila, Yorianta.
Description:	123 p.
Notes:	Source: Dissertation Abstracts International, Volume: 64-08, Section: B, page: 3642.
Contained By:	Dissertation Abstracts International64-08B.
Subject:	Biology, Entomology. -
Online resource:	http://pqdd.sinica.edu.tw/twdaoapp/servlet/advanced?query=NQ81612
ISBN:	0612816125

Chemical ecology of oil palm bunch moth, Tirathaba mundella (Lepidoptera: Pyralidae) and nettle caterpillars, Darna bradleyi, D. trima, Setothosea asigna and Setora nitens (Lepidoptera: Limacodidae).
Sasaerila, Yorianta.

Chemical ecology of oil palm bunch moth, Tirathaba mundella (Lepidoptera: Pyralidae) and nettle caterpillars, Darna bradleyi, D. trima, Setothosea asigna and Setora nitens (Lepidoptera: Limacodidae). - 123 p.

Source: Dissertation Abstracts International, Volume: 64-08, Section: B, page: 3642.

Thesis (Ph.D.)--Simon Fraser University (Canada), 2003.

Mate signalling systems in moths may have evolved in response to the type of larval resources and community composition. I have investigated mate signalling systems in five species co-inhabiting oil palms in Asia: Tirathaba mundella (Pyralidae) and Darna bradleyi, Darna trima, Setothosea asigna and Setora nitens (Limacodidae). Larvae of T. mundella develop inside fruit bunches (a rare resource for larval development), whereas limacodid larvae consume leaves (an abundant resource). Objectives. (1) test the hypothesis that T. mundella employ a male-signalling sexual communication system; (2) identify communication signals in T. mundella and in the limacodids; and (3) investigate mechanisms imparting specificity to the limacodids' sexual communication systems.

ISBN: 0612816125Subjects--Topical Terms:

1018619
Biology, Entomology.

Chemical ecology of oil palm bunch moth, Tirathaba mundella (Lepidoptera: Pyralidae) and nettle caterpillars, Darna bradleyi, D. trima, Setothosea asigna and Setora nitens (Lepidoptera: Limacodidae).
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040 $a UnM $c UnM
100 1 $a Sasaerila, Yorianta. $3 1949600
245 1 0 $a Chemical ecology of oil palm bunch moth, Tirathaba mundella (Lepidoptera: Pyralidae) and nettle caterpillars, Darna bradleyi, D. trima, Setothosea asigna and Setora nitens (Lepidoptera: Limacodidae).
300 $a 123 p.
500 $a Source: Dissertation Abstracts International, Volume: 64-08, Section: B, page: 3642.
500 $a Adviser: G. Gries.
502 $a Thesis (Ph.D.)--Simon Fraser University (Canada), 2003.
520 $a Mate signalling systems in moths may have evolved in response to the type of larval resources and community composition. I have investigated mate signalling systems in five species co-inhabiting oil palms in Asia: Tirathaba mundella (Pyralidae) and Darna bradleyi, Darna trima, Setothosea asigna and Setora nitens (Limacodidae). Larvae of T. mundella develop inside fruit bunches (a rare resource for larval development), whereas limacodid larvae consume leaves (an abundant resource). Objectives. (1) test the hypothesis that T. mundella employ a male-signalling sexual communication system; (2) identify communication signals in T. mundella and in the limacodids; and (3) investigate mechanisms imparting specificity to the limacodids' sexual communication systems.
520 $a Bioassay results supported the hypothesis that male T. mundella attract females. Gas chromatographic-electroantennographic detection (GC-EAD) and GC-mass spectrometric analyses of male T. mundella hair pencil extracts revealed four candidate pheromone components: (3 S,6S)-2,2,6-trimethyl-6-vinyl-tetrahydro-pyran-3-ol (1), 4-hydroxy-3-methoxy-benzaldehyde (2), 6,10,14-trimethyl-2-pentadecanol (3), and 6,10,14-trimethyl-2-pentadecanone (4). Synthetic stereoisomeric 1 plus 2 attracted female T. mundella.
520 $a Laboratory and field experiments also revealed the pheromone components for female S. asigna [(E)-9-dodecenal, ( E)-9,11-dodecadienal], S. nitens (Z)-9-dodecenal, (Z)-9,11-dodecadienal], D. trima [( S)-2-methylbutyl (E)-7,9-decadienoate, ( E)-2-hexenyl (E)-7,9-decadienoate], and D. bradleyi [methyl (E)-7,9-decadienoate, isobutyl (E)-7,9decadienoate].
520 $a Sexual communication of D. bradleyi and D. trima took place from &sim;17:30 to 18:45 h, and that of S. asigna and S. nitens from &sim;18:45 to 20:00 h and from &sim;18:30 to 19:30 h, respectively. Most male S. asigna and S. nitens were captured in pheromone-baited traps suspended >5 m high, whereas most male D. bradleyi and D. trima were captured in traps <5 m high. Baits containing both S. asigna and S. nitens pheromones did not attract any male moths, indicating that female S. asigna and S. nitens, with overlapping communication periods, use bifunctional pheromone components that attract conspecific males while repelling heterospecifics. These differences in diel periodicity, intra- and interspecific effects of communication signals and/or microlocation for signaling allow these limacodids to co-inhabit the same habitat and remain reproductively isolated.
520 $a That male T. mundella and female D. bradleyi, D. trima, S. asigna and S. nitens produce pheromones to attract mates supports the hypothesis that the type of larval resources affects the sexual communication system of adult moths.
590 $a School code: 0791.
650 4 $a Biology, Entomology. $3 1018619
650 4 $a Biology, Ecology. $3 1017726
690 $a 0353
690 $a 0329
710 2 0 $a Simon Fraser University (Canada). $3 1020621
773 0 $t Dissertation Abstracts International $g 64-08B.
790 1 0 $a Gries, G., $e advisor
790 $a 0791
791 $a Ph.D.
792 $a 2003
856 4 0 $u http://pqdd.sinica.edu.tw/twdaoapp/servlet/advanced?query=NQ81612