Fine fluorescent powder marking study of dispersal in the spruce bark beetle, Ips typographus (Coleoptera: Scolytidae)
A novel method was used to study dispersal in the spruce bark beetle, Ips typographus (L.), under epidemic conditions (rapidly increasing population density) in the Šumava National Park. Infested spruce logs were coated with a fine fluorescent powder and the passively marked emerging beetles were ca...
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| Format: | Article |
| Language: | English |
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Institute of Entomology, Biology Centre, Czech Academy of Science
2016-01-01
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| Series: | European Journal of Entomology |
| Subjects: | |
| Online Access: | https://www.eje.cz/artkey/eje-201601-0001_Fine_fluorescent_powder_marking_study_of_dispersal_in_the_spruce_bark_beetle_Ips_typographus_Coleoptera_Scol.php |
| _version_ | 1818729274206584832 |
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| author | Petr DOLEŽAL Jan OKROUHLÍK Markéta DAVÍDKOVÁ |
| author_facet | Petr DOLEŽAL Jan OKROUHLÍK Markéta DAVÍDKOVÁ |
| author_sort | Petr DOLEŽAL |
| collection | DOAJ |
| description | A novel method was used to study dispersal in the spruce bark beetle, Ips typographus (L.), under epidemic conditions (rapidly increasing population density) in the Šumava National Park. Infested spruce logs were coated with a fine fluorescent powder and the passively marked emerging beetles were captured in pheromone baited traps located at various distances from these logs. The number of marked beetles captured decreased exponentially with increasing distance from the release point. The sex ratio of the bark beetles was more female biased the further they were recaptured from the logs, being 57% and 60% at distances of up to 50 and 100 m, respectively. The maximum distance flown by a marked beetle recorded in this experiment was 1094 m. A model fitted to the data on dispersal indicates that 10% of the spruce bark beetles dispersed over distances of 55 m and 4 m in spring (overwintered parental generation) and summer (first filial generation), respectively. Differences between spring and summer swarming are briefly discussed. |
| first_indexed | 2024-12-17T22:43:17Z |
| format | Article |
| id | doaj.art-9bb5c2da283f491c83899ecdd179a3f2 |
| institution | Directory Open Access Journal |
| issn | 1210-5759 1802-8829 |
| language | English |
| last_indexed | 2024-12-17T22:43:17Z |
| publishDate | 2016-01-01 |
| publisher | Institute of Entomology, Biology Centre, Czech Academy of Science |
| record_format | Article |
| series | European Journal of Entomology |
| spelling | doaj.art-9bb5c2da283f491c83899ecdd179a3f22022-12-21T21:29:51ZengInstitute of Entomology, Biology Centre, Czech Academy of ScienceEuropean Journal of Entomology1210-57591802-88292016-01-0111311810.14411/eje.2016.001eje-201601-0001Fine fluorescent powder marking study of dispersal in the spruce bark beetle, Ips typographus (Coleoptera: Scolytidae)Petr DOLEŽAL0Jan OKROUHLÍK1Markéta DAVÍDKOVÁ2Institute of Entomology, Biology Centre of the Czech Academy of Sciences, Branišovská 31, 370 05 České Budějovice, Czech Republic; e-mails: dolezal@entu.cas.cz, marketadavidkova@seznam.czInstitute of Entomology, Biology Centre of the Czech Academy of Sciences, Branišovská 31, 370 05 České Budějovice, Czech Republic; e-mails: dolezal@entu.cas.cz, marketadavidkova@seznam.czInstitute of Entomology, Biology Centre of the Czech Academy of Sciences, Branišovská 31, 370 05 České Budějovice, Czech Republic; e-mails: dolezal@entu.cas.cz, marketadavidkova@seznam.czA novel method was used to study dispersal in the spruce bark beetle, Ips typographus (L.), under epidemic conditions (rapidly increasing population density) in the Šumava National Park. Infested spruce logs were coated with a fine fluorescent powder and the passively marked emerging beetles were captured in pheromone baited traps located at various distances from these logs. The number of marked beetles captured decreased exponentially with increasing distance from the release point. The sex ratio of the bark beetles was more female biased the further they were recaptured from the logs, being 57% and 60% at distances of up to 50 and 100 m, respectively. The maximum distance flown by a marked beetle recorded in this experiment was 1094 m. A model fitted to the data on dispersal indicates that 10% of the spruce bark beetles dispersed over distances of 55 m and 4 m in spring (overwintered parental generation) and summer (first filial generation), respectively. Differences between spring and summer swarming are briefly discussed.https://www.eje.cz/artkey/eje-201601-0001_Fine_fluorescent_powder_marking_study_of_dispersal_in_the_spruce_bark_beetle_Ips_typographus_Coleoptera_Scol.phpcoleopterascolytidaeips typographusbark beetledispersalfluorescent powderprotected areas |
| spellingShingle | Petr DOLEŽAL Jan OKROUHLÍK Markéta DAVÍDKOVÁ Fine fluorescent powder marking study of dispersal in the spruce bark beetle, Ips typographus (Coleoptera: Scolytidae) European Journal of Entomology coleoptera scolytidae ips typographus bark beetle dispersal fluorescent powder protected areas |
| title | Fine fluorescent powder marking study of dispersal in the spruce bark beetle, Ips typographus (Coleoptera: Scolytidae) |
| title_full | Fine fluorescent powder marking study of dispersal in the spruce bark beetle, Ips typographus (Coleoptera: Scolytidae) |
| title_fullStr | Fine fluorescent powder marking study of dispersal in the spruce bark beetle, Ips typographus (Coleoptera: Scolytidae) |
| title_full_unstemmed | Fine fluorescent powder marking study of dispersal in the spruce bark beetle, Ips typographus (Coleoptera: Scolytidae) |
| title_short | Fine fluorescent powder marking study of dispersal in the spruce bark beetle, Ips typographus (Coleoptera: Scolytidae) |
| title_sort | fine fluorescent powder marking study of dispersal in the spruce bark beetle ips typographus coleoptera scolytidae |
| topic | coleoptera scolytidae ips typographus bark beetle dispersal fluorescent powder protected areas |
| url | https://www.eje.cz/artkey/eje-201601-0001_Fine_fluorescent_powder_marking_study_of_dispersal_in_the_spruce_bark_beetle_Ips_typographus_Coleoptera_Scol.php |
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