2013 Fiscal Year Final Research Report
Outbreak of a scale insect by increase of temporal refuge from parasitoid attack due to global warming
| Project/Area Number |
22570012
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| Research Category |
Grant-in-Aid for Scientific Research (C)
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| Allocation Type | Single-year Grants |
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| Section | 一般 |
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| Research Field |
Ecology/Environment
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| Research Institution | Yamagata University |
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Principal Investigator |
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| Co-Investigator(Kenkyū-buntansha) |
URANO Tadahisa 独立行政法人森林総合研究所, 森林昆虫研究領域, 主任研究員 (60353603)
SAITO Shoichi 山形県森林研究研修センター, 森林環境部, 森林環境部長 (80502583)
UENO Mitsuru 山形県森林研究研修センター, 森林環境部, 専門研究員 (00502585)
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| Project Period (FY) |
2010-04-01 – 2014-03-31
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| Keywords | 種間関係 / 温暖化 / カイガラムシ / 時間的隠れ家 / 樹幹注入法 |
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| Research Abstract |
In order to reveal the relationship between global warming and the outbreak of the scale insect on Satoyama in the north-eastern parts of Japan, we made a model and carried out simulation using the data from field investigation and laboratory experiments. As a result, a possibility that global warming can be a cause of the outbreak changing the growth speed between the scale insect and the parasitoid wasp which is their main natural enemy, especially when the threshold temperatures under the condition of hot summer were different between the two species, was suggested. In addition, we forecasted the distribution of the scale insect when global warming will be progressed, and established a protection method by trunk injection method.
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