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RISS 인기검색어
- 검색키워드
- 저자 : Hosoishi Shingo (검색결과 3 건)
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Long-term impacts of Argentine ant invasion of urban parks in Hiroshima, Japan
박상현,Shingo Hosoishi,Kazuo Ogata 한국생태학회 2014 Journal of Ecology and Environment Vol.37 No.3
Ant communities are well suited for monitoring changes in ecosystems. Although numerous studies have examined the responses of ant communities to environmental disturbance, relatively few long-term studies on ant communities have been undertaken in urban environments. We examined species richness in nine urban parks in Hiroshima, Japan, and compared the survey results with data collected at the same sites using the same methods in 1999. In both surveys, total of 25 species was recorded: 23 species in 1999 and 20 species in 2012. Non-metric multidimensional scaling analysis revealed that the ant communities consisted of two distinct groups, which could in turn be characterized by three patterns of ant community changes in between the two groups. The first of these community change patterns was characterized by a shift within group 1, but the number of species remaining constant (approx. 10 species). The second pattern was characterized by a shift within group 2, but the number of species remained low (approx. 4 species). The third pattern was characterized by a shift from group 1 to group 2 as the abundance of Linepithema humile (Mayr) increased over time. Unlike the first and second patterns, the number of ant species in communities of the third type decreased significantly. These findings suggest that L. humile has a marked effect on the species diversity of indigenous ant communities in urban environments.
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Rahman Md Mamunur,Hosoishi Shingo,Kazuo Ogata 한국응용곤충학회 2021 Journal of Asia-Pacific Entomology Vol.24 No.1
Climatic oscillation often have influenced the present distribution and intraspecific genetic diversity Oecophylla smaragdina through its wide range of geographical distribution. Previous phylogeographic study of Asian weaver ant population denotes the evidence of distribution of Indian types in Indian, Sri Lanka and SE Asian types in South Asian countries including Bangladesh. However, recent phylogenetic analysis reveals the overlapping distribution of the Indian and South East Asian clades of O. smaragdina in Bangladesh. The present study aims to identify the haplotypes and it’s networking in Bangladesh based on extensive materials. Sampling was executed according to zonation of 5 areas, demarcated by 3 main rivers during the years 2013 to 2018. Adult O. smaragadina workers were collected from 71 colonies of 67 localities belonging to 47 districts of Bangladesh. A total of 25 haplotypes were identified in Bangladesh comprises 13 and 12 of Indian and SE Asian types, respectively from 93 sequences of Cytochrome c oxidase subunit I (COI) gene of 639 bp. The geographical distribution of this haplotype reveals that the Indian haplotypes are mostly located at the western part of Bangladesh while SE Asian haplotypes were dominated in the Eastern part of the country. Central part of Bangladesh has overlapped with the mixture of both Indian and SE Asian haplotypes. The results of the haplotype network give the evidence of recent expansion of O. smaragdina population in Bangladesh and clarify the evi dence of presence of many missing haplotypes in refugee.
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Long-term impacts of Argentine ant invasion of urban parks in Hiroshima, Japan
Park, Sang-Hyun,Hosoishi, Shingo,Ogata, Kazuo The Ecological Society of Korea 2014 Journal of Ecology and Environment Vol.37 No.3
Ant communities are well suited for monitoring changes in ecosystems. Although numerous studies have examined the responses of ant communities to environmental disturbance, relatively few long-term studies on ant communities have been undertaken in urban environments. We examined species richness in nine urban parks in Hiroshima, Japan, and compared the survey results with data collected at the same sites by using the same methods in 1999. In both surveys, total of 25 species was recorded: 23 species in 1999 and 20 species in 2012. Non-metric multidimensional scaling analysis revealed that the ant communities consisted of two distinct groups, which could in turn be characterized by three patterns of ant community changes in between the two groups. The first of these community change patterns was characterized by a shift within group 1, but the number of species remained constant (approx. 10 species). The second pattern was characterized by a shift within group 2, but the number of species remained low (approx. 4 species). The third pattern was characterized by a shift from group 1 to group 2 as the abundance of Linepithema humile (Mayr) increased over time. Unlike the first and second patterns, the number of ant species in communities of the third type decreased significantly. These findings suggest that L. humile has a marked effect on the species diversity of indigenous ant communities in urban environments.
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