Estimating Flight Distance ofPlatypus koryoensis(Coleoptera: Curculionidae) by Mark–Release–Recapture and Its Validation by Field Observation
| Autor: | Yeon Jae Bae, Cha Young Lee, Youngwoo Nam, Won Il Choi, Yeon Ok Seo |
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| Rok vydání: | 2018 |
| Předmět: |
0106 biological sciences
Oak wilt education.field_of_study Ecology Population Dynamics Population Zoology Introduced species General Medicine Biology biology.organism_classification 010603 evolutionary biology 01 natural sciences Platypus koryoensis 010602 entomology Insect Science Curculionidae Republic of Korea Animals Weevils Biological dispersal education Woody plant Flight distance |
| Zdroj: | Journal of Economic Entomology. 112:720-728 |
| ISSN: | 1938-291X 0022-0493 |
| Popis: | Korean oak wilt (KOW) is vectored by the beetle Platypus koryoensis (Murayama) (Coleoptera: Curculionidae), a native species of Korea, whose dispersal distance is a key factor determining the spread of damage by KOW. To estimate dispersal distance at stand level, we conducted a mark-release-recapture (MRR) experiment and validated its results using an independent data. Sticky traps were attached to the trunks of oak trees up to 48.8 m from the release point. Beetles were marked with different three fluorescent powders by date and released, and the number of recaptured beetles was counted 90 min after release. To validate the flight distance, annual mean dispersal distance of P. koryoensis population was analyzed using GPS coordinates of oak trees with the symptom of KOW recorded in the field from 2012 to 2014 in independent oak stands that have been damaged by KOW since 2012. The beetles were recaptured only on the day they were released, suggesting that the beetles only make one flight. The percentage of recaptured beetles was 6.0 ± 1.6%. The mean dispersal distance was 18.0 ± 1.3 m, and more than 85% of recaptured beetles were caught within 25 m. Annual movement distances in infested stands were 24.1 and 19.9 m from 2012 to 2013 and 2013 to 2014, respectively, similar to the dispersal distance obtained from our MRR experiment. Our results showed that the dispersal distance of P. koryoensis estimated by MRR is a useful process for predicting the spread of areas damaged by KOW. |
| Databáze: | OpenAIRE |
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