Synchronization of gallers with host plant phenology
- J. Yukawa
- Environmental SciencePopulation Ecology
- 27 September 2000
Abstract In addition to various bottom-up effects, the synchronization of herbivores with their host plant phenology determines quality and quantity of food resources and affects the…
Co-existence of the two related stink bugsNezara viridula andN. Antennata under natural conditions
- K. Kiritani, N. Hokyo, J. Yukawa
- BiologyResearches on population ecology
- 1 June 1963
The southern green stink bug, Nezara viridula and the oriental green stink bug, N. an~enn2ta which are closely related in morphology and biology distribute together in Wakayama prefecture, and it is…
Description of the soybean pod gall midge, Asphondylia yushimai sp. n. (Diptera: Cecidomyiidae), a major pest of soybean and findings of host alternation
- J. Yukawa, N. Uechi, M. Horikiri, M. Tuda
- BiologyBulletin of entomological research
- 1 January 2003
It is concluded that Prunus zippeliana Miquel is a winter host of the soybean pod gall midge and host alternation by A. yushimai is confirmed, the second finding of host alternations by a species of Asphondylia.
Distribution range shift of two allied species, Nezara viridula and N. antennata(Hemiptera: Pentatomidae), in Japan, possibly due to global warming
- J. Yukawa, K. Kiritani, N. Gyoutoku, N. Uechi, D. Yamaguchi, S. Kamitani
- Biology
- 6 September 2007
Nezara viridula has been expanding its range northward since the 1960s and coincided well with the areas where the mean temperature of the coldest month exceeds 5°C that has been suggested to be the lowest thermal limit for N.viridula to overwinter successfully.
Occurrence of Obolodiplosis robiniae (Diptera: Cecidomyiidae) in Japan and South Korea
- Fumio Kodoi, 文生 小土井, 湯川 淳一
- BiologyESAKIA
- 31 March 2003
A gall midge species forming leaf margin roll galls on Robinia pseudoacacia was newly found in Japan and South Korea and identified as Obolodiplosis robiniae (Haldemann), which is native to easternNorthAmerica.
Northward range expansion by Nezara viridula (Hemiptera: Pentatomidae) in Shikoku and Chugoku Districts, Japan, possibly due to global warming
- J. Yukawa, K. Kiritani, Y. Takematsu
- Environmental Science
- 25 August 2009
The present data together with previous reports suggest that the northward range expansion of N. viridula is possibly due to global warming because the monthly mean temperature for January in newly invaded areas has exceeded 5°C in recent years, for example, since 1986 in Fukuoka.
Host Alternation by Gall Midges of the Genus Asphondylia ( Diptera : Cecidomyiidae )
- N. Uechi, J. Yukawa, D. Yamaguchi
- Biology
- 2004
DNA analysis, together with morphological, ecological, and distributional information, indicated that the weigela leaf bud gall midge is identical with Asphondylia baca Monzen that produces fruit galls on Ampelopsis brevipedunculata and Trautvetter var.
Coexistence of two mitochondrial DNA haplotypes in Japanese populations of Hypera postica (Col., Curculionidae)
- R. Kuwata, M. Tokuda, D. Yamaguchi, J. Yukawa
- Biology
- 1 May 2005
Molecular phylogenetic analysis for H. postica haplotypes and strains indicated that the two Japanese haplotypes had not derived from a single genetic origin, indicating the coexistence of two haplotypes at various localities in Japan.
Polymodal emergence pattern of the machilus leaf gall midge, Daphnephila machilicola Yukawa (Diptera, Cecidomyiidae)
- Nobutaka Maeda, Shōichi Satō, J. Yukawa
- Biology
- 25 March 1982
Arthropod Community
- J. Yukawa
- Environmental ScienceBiology of Gall Midges
- 2021
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