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Hayasaka D, Kato K, Hiraiwa MK, Kasai H, Osaki K, Aoki R, Sawahata T. Undesirable dispersal via a river pathway of a single Argentine ant supercolony newly invading an inland urban area of Japan. Sci Rep 2023; 13:21119. [PMID: 38036575 PMCID: PMC10689755 DOI: 10.1038/s41598-023-47734-0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/23/2023] [Accepted: 11/17/2023] [Indexed: 12/02/2023] Open
Abstract
Invasive ants pose a risk to human well-being and social/ecosystem stability. Linepithema humile Mayr is among the most damaging invasive ants worldwide. Most L. humile populations invade ports/wharfs isolated from surrounding landscapes, but unfortunately, a new population was discovered in an inland urban area (Nara Prefecture) of Japan in 2021. In this study, first, the supercolony type of the Nara L. humile population was identified via a hostility test, and then its distribution pattern was characterized. In aggression tests between L. humile from Nara and four supercolonies (haplotypes LH1, LH2, LH3, LH4), this ant showed extremely strong hostility against all supercolonies exept LH2, which was detected only in Japan in its introduced range. In Nara, L. humile was abundant in and around the urban river. Simulations revealed that using this environment for movement/dispersal increased the annual dispersal ability by 14 times compared with that achieved via ground (125 m), as mentioned in the literature. Therefore, river channels can serve as major pathways of long-distance dispersal for L. humile invading inland urban areas. Since applying chemical strategies around rivers is problematic, preventing L. humile from moving to rivers from initial invasion sites is crucial.
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Affiliation(s)
- Daisuke Hayasaka
- Faculty of Agriculture, Kindai University, Nakamachi 3327-204, Nara, 631-8505, Japan.
| | - Kenshin Kato
- Faculty of Agriculture, Kindai University, Nakamachi 3327-204, Nara, 631-8505, Japan
- Fukui River and National Highway Office, Ministry of Land, Infrastructure, Transport and Tourism, Hanando-minami 2-14-7, Fukui, 918-8015, Japan
| | - Masayoshi K Hiraiwa
- Faculty of Agriculture, Kindai University, Nakamachi 3327-204, Nara, 631-8505, Japan.
| | - Hiro Kasai
- Graduate School of Agriculture, Kindai University, Nakamachi 3327-204, Nara, 631-8505, Japan
| | - Kazutaka Osaki
- Graduate School of Agriculture, Kindai University, Nakamachi 3327-204, Nara, 631-8505, Japan
| | - Retsushi Aoki
- Graduate School of Agriculture, Kindai University, Nakamachi 3327-204, Nara, 631-8505, Japan
| | - Takuo Sawahata
- Faculty of Agriculture, Kindai University, Nakamachi 3327-204, Nara, 631-8505, Japan
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2
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Hayasaka D, Hiraiwa MK, Maebara Y, Seko Y. Acute toxicity of fipronil to an invasive ant, Lepisiota frauenfeldi. JOURNAL OF PESTICIDE SCIENCE 2022; 47:208-212. [PMID: 36514688 PMCID: PMC9716042 DOI: 10.1584/jpestics.d22-049] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 08/15/2022] [Accepted: 10/10/2022] [Indexed: 06/17/2023]
Abstract
Slow-acting fipronil is one of the best components for controlling invasive ants. However, its efficacy against invasive Lepisiota frauenfeldi, which recently invaded Japan, remains unclear. Here, its acute toxicity to Le. frauenfeldi was assessed, and its lethal concentrations were compared with those against other invasive ants (Linepithema humile and Solenopsis invicta). The LC10 and LC50 values of fipronil for Le. frauenfeldi were significantly lower than the previously reported values for Li. humile and/or S. invicta, and its LC90 value against Le. frauenfeldi was in the same range as that required for Li. humile extermination. Additionally, Le. frauenfeldi can be more sensitive to fipronil than non-target arthropods. Therefore, recent fipronil-based Li. humile and S. invicta eradication/control programs may be effective against Le. frauenfeldi as well. Moreover, applying fipronil at dosages appropriate for Le. frauenfeldi would lead to effective Le. frauenfeldi extermination/control with low damage to other native species/ants.
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Affiliation(s)
| | | | - Yu Maebara
- Graduate School of Agriculture, Kindai University
| | - Yugo Seko
- Graduate School of Agriculture, Kindai University
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3
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Bertelsmeier C. Globalization and the anthropogenic spread of invasive social insects. CURRENT OPINION IN INSECT SCIENCE 2021; 46:16-23. [PMID: 33545436 DOI: 10.1016/j.cois.2021.01.006] [Citation(s) in RCA: 29] [Impact Index Per Article: 9.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/22/2020] [Revised: 01/17/2021] [Accepted: 01/22/2021] [Indexed: 06/12/2023]
Abstract
Social insects are among the worst invasive species and a better understanding of their anthropogenic spread is needed. I highlight recent research demonstrating that social insects have been dispersed since the early beginnings of globalized trade and in particular after the Industrial Revolution, following two waves of globalization. Many species have complex invasion histories, with multiple independent introduction events and frequent secondary spread. The major source and recipient regions differ markedly across ants, wasps, termites and bees, probably linked to their different introduction pathways. At a more local scale, anthropogenic factors such as irrigation, urbanization or the presence of railways facilitate invasions. In the future, social insect invasions could further accelerate due to intensifying global trade and novel introduction pathways.
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Affiliation(s)
- Cleo Bertelsmeier
- Department of Ecology and Evolution, University of Lausanne, 1015 Lausanne, Switzerland.
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4
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Yasashimoto T, Sakata MK, Sakita T, Nakajima S, Ozaki M, Minamoto T. Environmental DNA detection of an invasive ant species (Linepithema humile) from soil samples. Sci Rep 2021; 11:10712. [PMID: 34040019 PMCID: PMC8154996 DOI: 10.1038/s41598-021-89993-9] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/04/2020] [Accepted: 05/04/2021] [Indexed: 02/04/2023] Open
Abstract
Alien ant species (Formicidae, Hymenoptera) cause serious damage worldwide. Early detection of invasion and rapid management are significant for controlling these species. However, these attempts are sometimes hindered by the need for direct detection techniques, such as capture, visual observation, or morphological identification. In this study, we demonstrated that environmental DNA (eDNA) analysis can be used as a monitoring tool for alien ants using Linepithema humile (Argentine ant), one of the most invasive ants, as a model species. We designed a new real-time PCR assay specific to L. humile and successfully detected eDNA from the surface soil. The reliability of eDNA analysis was substantiated by comparing eDNA detection results with traditional survey results. Additionally, we examined the relationship between eDNA concentration and distance from nests and trails. Our results support the effectiveness of eDNA for alien ant monitoring and suggest that this new method could improve our ability to detect invasive ant species.
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Affiliation(s)
- Tetsu Yasashimoto
- Graduate School of Human Development and Environment, Kobe University, 3-11, Tsurukabuto, Nada-ku, Kobe, Hyogo, 657-8501, Japan
| | - Masayuki K Sakata
- Graduate School of Human Development and Environment, Kobe University, 3-11, Tsurukabuto, Nada-ku, Kobe, Hyogo, 657-8501, Japan
- Research Fellow of Japan Society for the Promotion of Science, Tokyo, Japan
| | - Tomoya Sakita
- Graduate School of Science, Kobe University, Kobe, Japan
| | - Satoko Nakajima
- Kyoto Prefectural Institute of Public Health and Environment, Kyoto, Japan
| | - Mamiko Ozaki
- Graduate School of Science, Kobe University, Kobe, Japan
- Graduate School of Engineering, Kobe University, Kobe, Japan
- KYOUSEI Science Center for Life and Nature, Nara Women's University, Nara, Japan
- Research Institute of Sustainable Humanosphere, Kyoto University, Kyoto, Japan
- RIKEN Center for Biosystems Dynamics Research, Kobe, Japan
| | - Toshifumi Minamoto
- Graduate School of Human Development and Environment, Kobe University, 3-11, Tsurukabuto, Nada-ku, Kobe, Hyogo, 657-8501, Japan.
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5
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Park J, Park CH, Park J. Complete mitochondrial genome of the H3 haplotype Argentine ant Linepithema humile (Mayr, 1868) (Formicidae; Hymenoptera). MITOCHONDRIAL DNA PART B-RESOURCES 2021; 6:786-788. [PMID: 33763578 PMCID: PMC7954432 DOI: 10.1080/23802359.2021.1882900] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Indexed: 12/02/2022]
Abstract
The argentine ant, Linepithema humile (Mayr, 1867), is an invasive ant species that has spread across the world. We have determined the mitochondrial genome of L. humile collected in South Korea, which is 15,934 bp containing 10 SNPs and 5 INDELs compared to the previous mitogenome. Most SNPs were found in cox3, followed by cytb. From SNPs our mitogenome was identified as a H3 haplotype, which was previously recorded in Japan and the U.S. while the previous mitogenome was H1 haplotype. Phylogenetic analysis was congruent to previous study within the tribe Leptomyrmecini but not between other tribes of subfamily Dolichoderinae.
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Affiliation(s)
- Jonghyun Park
- InfoBoss Inc, Seoul, Republic of Korea.,InfoBoss Research Center, Seoul, Republic of Korea
| | - Chan-Ho Park
- National Institute of Biological Resources, Incheon, Korea
| | - Jongsun Park
- InfoBoss Inc, Seoul, Republic of Korea.,InfoBoss Research Center, Seoul, Republic of Korea
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6
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Seko Y, Hashimoto K, Koba K, Hayasaka D, Sawahata T. Intraspecific differences in the invasion success of the Argentine ant Linepithema humile Mayr are associated with diet breadth. Sci Rep 2021; 11:2874. [PMID: 33536543 PMCID: PMC7859199 DOI: 10.1038/s41598-021-82464-1] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/07/2020] [Accepted: 01/20/2021] [Indexed: 01/30/2023] Open
Abstract
The Argentine ant, Linepithema humile Mayr, has spread to almost all continents. In each introduced region, L. humile often forms a single large colony (supercolony), the members of which share the haplotype "LH1", despite the presence of other supercolonies with different genetic structures. However, the mechanisms underlying the successful invasion of LH1 ants are unclear. Here, we examined whether diet breadth differs between more successful (LH1) and less successful (LH2, LH3, LH4) L. humile supercolonies in Japan to better understand the processes responsible for invasion success. The standard ellipse areas (SEAs) of δ13C and δ15N and their ranges (CR and NR) were used as diet breadth indices. The SEAs of LH1 were much larger than those of the less successful supercolonies despite no differences in the baseline SEAs of arthropods within the supercolony habitats, indicating that the invasion success of a supercolony is associated with its diet breadth. Furthermore, LH1 had a broader CR than the other supercolonies, suggesting that which might be derived from superior resource exploitation ability. Our study highlights the importance of focusing on intraspecific differences in diet breadth among supercolonies when assessing organisms that can potentially invade and become dominant in new habitats.
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Affiliation(s)
- Yugo Seko
- Graduate School of Agriculture, Kindai University, Nakamachi 3327-204, Nara, 631-8505, Japan.
| | - Koya Hashimoto
- Faculty of Agriculture, Kindai University, Nakamachi 3327-204, Nara, 631-8505, Japan
- National Institute for Environmental Studies (NIES), Onogawa 16-2, Tsukuba, Ibaraki, 305-8506, Japan
| | - Keisuke Koba
- Center for Ecological Research (CER), Kyoto University, Hirano 2-509-3, Otsu, Shiga, 520-2113, Japan
| | - Daisuke Hayasaka
- Graduate School of Agriculture, Kindai University, Nakamachi 3327-204, Nara, 631-8505, Japan.
| | - Takuo Sawahata
- Graduate School of Agriculture, Kindai University, Nakamachi 3327-204, Nara, 631-8505, Japan
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7
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Ma J, Liu J, Shen Y, Fan Z, Yue B, Zhang X. Population genetic structure and intraspecific genetic distance of Periplaneta americana (Blattodea: Blattidae) based on mitochondrial and nuclear DNA markers. Ecol Evol 2019; 9:12928-12939. [PMID: 31788226 PMCID: PMC6876684 DOI: 10.1002/ece3.5777] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/18/2019] [Revised: 10/01/2019] [Accepted: 10/02/2019] [Indexed: 11/06/2022] Open
Abstract
The American cockroach (Periplaneta americana) is a globally invasive pest that can cause significant economic loss and threaten human health. Although it is abundant and lives in close proximity to humans, few studies have investigated the genetic diversity of P. americana. Our study analyzed 1,053 P. americana and other Periplaneta species' samples from different locations in China and the United States. A traditional tree-based method using 17 unique mitochondrial COI haplotypes of P. americana and 20 haplotypes of the other Periplaneta species accurately identified P. americana with a barcoding threshold of 5.1%. To identify the population genetic structure of P. americana, we investigated wingless gene and pooled them with obtained mtDNA data for a combined analysis. Although the genetic diversity of the USA group was relatively higher than the China group, the number of haplotypes and alleles of both groups was small. The analysis of molecular variance (AMOVA), intraspecific phylogeny, and haplotype networks indicated that P. americana had very little global genetic differentiation. The weak geographic genetic structure might reflect the human-mediated dispersal of P. americana. Despite no apparent phylogeographic assignment of mtDNA and nuclear lineages was observed in both BI trees, the integrated COI sequence data identified four distinct P. americana haplotype groups, showing four ancient maternal lineages of P. americana in China and the United States.
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Affiliation(s)
- Jinnan Ma
- Key Laboratory of Bio‐resources and Eco‐environmentMinistry of EducationCollege of Life SciencesSichuan UniversityChengduChina
| | - Jinhua Liu
- Sichuan Key Laboratory of Conservation Biology on Endangered WildlifeCollege of Life SciencesSichuan UniversityChengduChina
| | - Yongmei Shen
- Sichuan Key Laboratory of Medicinal American CockroachSichuan Gooddoctor Pharmaceutical GroupChengduChina
| | - Zhenxin Fan
- Key Laboratory of Bio‐resources and Eco‐environmentMinistry of EducationCollege of Life SciencesSichuan UniversityChengduChina
- Sichuan Key Laboratory of Conservation Biology on Endangered WildlifeCollege of Life SciencesSichuan UniversityChengduChina
| | - Bisong Yue
- Key Laboratory of Bio‐resources and Eco‐environmentMinistry of EducationCollege of Life SciencesSichuan UniversityChengduChina
- Sichuan Key Laboratory of Conservation Biology on Endangered WildlifeCollege of Life SciencesSichuan UniversityChengduChina
| | - Xiuyue Zhang
- Key Laboratory of Bio‐resources and Eco‐environmentMinistry of EducationCollege of Life SciencesSichuan UniversityChengduChina
- Sichuan Key Laboratory of Conservation Biology on Endangered WildlifeCollege of Life SciencesSichuan UniversityChengduChina
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8
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Seko Y, Hayasaka D, Nishino A, Uchida T, Sánchez-Bayo F, Sawahata T. Host-Tree Selection by the Invasive Argentine Ant (Hymenoptera: Formicidae) in Relation to Honeydew-Producing Insects. JOURNAL OF ECONOMIC ENTOMOLOGY 2018; 111:319-326. [PMID: 29329403 DOI: 10.1093/jee/tox351] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/07/2023]
Abstract
The Argentine ant, Linepithema humile (Mayr; Hymenoptera: Formicidae), is one of the world's most hazardous invasive species, and thus its eradication from Japan is important. Physical and chemical controls can be expensive and cause strong adverse effects on local terrestrial ecosystems regardless of their high efficacy. Here, presence/absence of host-tree selection by Argentine ants was investigated to understand the ant-honeydew-producing insects interactions in order to develop new cultural controls compatible with biodiversity conservation. Abundance of Argentine ants and their tree utilization ratio was measured among dominant roadside trees (Cinnamomum camphora, Myrica rubra, Nerium indicum, Rhaphiolepis indica var. umbellata, Juniperus chinensis var. kaizuka) in two areas around Kobe, Japan. Almost all ants collected were Argentine ants suggesting that native ants would have been competitively excluded. Tree utilization of Argentine ants clearly differed among host trees. Abundance of both Argentine ants and honeydew-producing insects and tree utilization rate of the ants were significantly lower in especially C. camphora and J. chinensis. Few Argentine ants were observed trailing on C. camphora, J. Chinensis, and N. indicum, most probably due to low abundance of honeydew-producing insects on these trees with the toxic and repellent chemical components. On the other hand, high abundance of both Argentine ants and homopterans were found in M. rubra and especially R. indica. We suggest that reductions of R. indica and M. rubra would lead to a decrease in abundance of honeydew-producing insects, and thus effectively control populations of Argentine ants. At the same time, planting of C. camphora, J. Chinensis, and N. indicum may also play a role in restraint efficacy against invasion of the invasive ants.
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Affiliation(s)
- Yugo Seko
- Graduate School of Agriculture, Kindai University, Nakamachi, Nara, Japan
| | - Daisuke Hayasaka
- Graduate School of Agriculture, Kindai University, Nakamachi, Nara, Japan
| | - Atsushi Nishino
- Graduate School of Agriculture, Kindai University, Nakamachi, Nara, Japan
| | - Taizo Uchida
- Faculty of Engineering, Kyushu Sangyo University, Higashi-ku, Matsukadai, Fukuoka, Japan
| | - Francisco Sánchez-Bayo
- School of Life & Environmental Sciences, The University of Sydney, Biomedical building, Eveleigh, NSW, Australia
| | - Takuo Sawahata
- Graduate School of Agriculture, Kindai University, Nakamachi, Nara, Japan
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9
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Sato K, Sakamoto H, Hirata M, Kidokoro-Kobayashi M, Ozaki M, Higashi S, Murakami T. Relationship Among Establishment Durations, Kin Relatedness, Aggressiveness, and Distance Between Populations of Eight Invasive Argentine Ant (Hymenoptera: Formicidae) Supercolonies in Japan. JOURNAL OF ECONOMIC ENTOMOLOGY 2017; 110:1676-1684. [PMID: 28531326 DOI: 10.1093/jee/tox141] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/26/2016] [Indexed: 06/07/2023]
Abstract
We investigated kin relatedness and kin-recognition abilities of the Argentine ant, Linepithema humile (Mayr), an invader from North America that has pervaded Japan for 20 yr, using genetic analyses and behavioral bioassays. From these data and interactions among factors, we formulated an eradication and management time-scale pattern diagram. Relatedness within a colony using microsatellite markers was effectively zero, whereas relatedness estimated by multilocus DNA fingerprinting markers was relatively high. Specifically, relatedness of recently invaded populations was estimated at nearly 0.3. From the results of behavioral bioassays on the invading populations of the Argentine ant, all colonies except the Kobe supercolonies did not show clearly aggressive behaviors toward workers belonging to other colonies, even when distantly located. Because they are critical factors for eradicating and managing invasive organisms, we assessed the relationships among kin relatedness using multilocus DNA fingerprinting and microsatellite markers, with aggressiveness, in 2011 and 2012, including the establishment durations, and distances among supercolonies. A generalized linear model (GLM) analysis, with establishment durations as an explanatory variable, strongly contributed to explaining estimated relatedness from the two methods. Specifically, models using kin relatedness for both multilocus DNA fingerprinting and microsatellite markers provided the strongest contribution to explaining the establishment durations. Within 3 yr after establishment in a native area, eradication is possible because of their low genetic diversity and small colony size. After 15 yr, eradication will be more difficult, but it is preferable to just monitor the impact for a nonnative ecosystem.
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Affiliation(s)
- K Sato
- Hokkaido University of Education, Hakodate, Hokkaido 040-8567, Japan
- Chiba Oihama High School, Chiba, Chiba 260-0823, Japan
| | - H Sakamoto
- Faculty of Agriculture, Ibaraki University, Ami, Ibaraki 300-0393, Japan
| | - M Hirata
- Sapporo Ohtani High School, Sapporo, Hokkaido 065-0016, Japan
| | | | - M Ozaki
- Kobe University, Kobe, Hyogo 657-8501, Japan
| | - S Higashi
- Hokkaido University, Sapporo, Hokkaido 060-0808, Japan
| | - T Murakami
- Hokkaido University of Education, Hakodate, Hokkaido 040-8567, Japan
- Kyushu University, Decision Science, 744 Motooka, Fukuoka 819-0315, Japan
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10
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Inoue MN, Ito F, Goka K. Queen execution increases relatedness among workers of the invasive Argentine ant, Linepithema humile. Ecol Evol 2015; 5:4098-107. [PMID: 26445661 PMCID: PMC4588641 DOI: 10.1002/ece3.1681] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/29/2015] [Accepted: 07/30/2015] [Indexed: 11/29/2022] Open
Abstract
Polygyny in social insects can greatly reduce within‐nest genetic relatedness. In polygynous ant species, potential rival queens in colonies with multiple queens are often executed by other queens, workers, or both. The Argentine ant, Linepithema humile, native to South America, forms a “supercolony” that is composed of a large number of nests and is considered to contribute to the ant's invasion success. Currently, four mutually antagonistic supercolonies are contiguously distributed within a small area of Japan. Here, we analyzed the genetic structure and relatedness within and among the four supercolonies using microsatellite markers to clarify how L. humile maintains its supercoloniality. The results of AMOVA and BASP, the FST values, and the existence of several private alleles indicated that the L. humile population in the Kobe area had a characteristic genetic structure. Within a given supercolony, there was significant genetic differentiation (FST) among workers collected in May and those collected in September. The significant deviation from Hardy–Weinberg equilibrium increased, and the relatedness among workers significantly increased from May to September in all supercolonies. This result suggested that the supercolonies replaced old queens with new ones during the reproductive season, thus supporting the plausibility of queen execution. From the perspective of kin selection, workers collectively eliminate queens, thereby increasing their own inclusive fitness. Restricted gene flow among supercolonies, together with mating with sib and queen execution, could help to maintain the unique social structure of L. humile, the distribution of which is expanding worldwide.
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Affiliation(s)
- Maki N Inoue
- Department of Applied Biological Science Tokyo University of Agriculture and Technology 3-5-8 Saiwaicho Fuchu Tokyo 183-8509 Japan
| | - Fuminori Ito
- Faculty of Agriculture Kagawa University 2393 Ikenobe Miki Kagawa 761-0795 Japan
| | - Koichi Goka
- National Institute for Environmental Studies 16-2 Onogawa Tsukuba Ibaraki 305-0053 Japan
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11
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Hayasaka D, Kuwayama N, Takeo A, Ishida T, Mano H, Inoue MN, Nagai T, Sánchez-Bayo F, Goka K, Sawahata T. Different acute toxicity of fipronil baits on invasive Linepithema humile supercolonies and some non-target ground arthropods. ECOTOXICOLOGY (LONDON, ENGLAND) 2015; 24:1221-1228. [PMID: 25980487 DOI: 10.1007/s10646-015-1483-z] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Accepted: 05/07/2015] [Indexed: 06/04/2023]
Abstract
Fipronil is one of the most effective insecticides to control the invasive ant Linepithema humile, but its effectiveness has been assessed without considering the genetic differences among L. humile supercolonies. We hypothesized that the susceptibility of the ant to fipronil might differ among supercolonies. If so, dosage and concentration of fipronil may need to be adjusted for effective eradication of each supercolony. The relative sensitivities of four L. humile supercolonies established in Hyogo (Japan) to fipronil baits were examined based on their acute toxicity (48-h LC(50)). Toxicities of fipronil to seven ground arthropods, including four native ant species, one native isopoda, and two cockroaches were also determined and compared to that of L. humile supercolonies using species sensitivity distributions. Marked differences in susceptibility of fipronil were apparent among the supercolonies (P < 0.008), with the 'Japanese main supercolony' (271 μg L(-1)) being five to ten times more sensitive to fipronil than other colonies (1183-2782 μg L(-1)). Toxicities to non-target species (330-2327 μg L(-1)) were in the same range as that of L. humile, and SSDs between the two species groups were not significantly different (t = -1.389, P = 0.180), suggesting that fipronil's insecticidal activity is practically the same for L. humile as for non-target arthropods. Therefore, if the invasive ant is to be controlled using fipronil, this would also affect the local arthropod biodiversity. Only the 'Japanese main supercolony' can be controlled with appropriate bait dosages of fipronil that would have little impact on the other species.
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Affiliation(s)
- Daisuke Hayasaka
- Faculty of Agriculture, KINDAI University, 3327-204 Nakamachi, Nara, 631-8505, Japan,
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12
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Li Y, Duan X, Qiao X, Li X, Wang K, Men Q, Chen M. Mitochondrial DNA revealed the extent of genetic diversity and invasion origin of populations from two separate invaded areas of a newly invasive pest, Cydia pomonella (L.) (Lepidoptera: Tortricidae) in China. BULLETIN OF ENTOMOLOGICAL RESEARCH 2015; 105:485-496. [PMID: 25895900 DOI: 10.1017/s0007485315000334] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/04/2023]
Abstract
Cydia pomonella is a serious invasive insect pest in China, and has caused severe damage to the production of apple and pear in its invaded areas. This species is distributing in the northwest and northeast of China, but no occurrence of it has been recorded in the large areas (about 3000-5000 km away) between the invaded northwestern and northeastern regions despite continuous monitoring. As yet the genetic diversity and invasion origin of the C. pomonella populations in Northwestern and Northeastern China is obscure. In this study, we investigate the genetic diversity of 14 populations of C. pomonella sampled throughout the main distribution regions in Northwestern (Xinjiang and Gansu Provinces) and Northeastern (Heilongjiang Province) China and compared them with nine populations from Europe and other continents using the mitochondrial COI, COII and Cytb genes. Both the populations from Northeastern and Northwestern China shared some haplotypes with populations from other countries. Haplotypes of the three mitochondrial genes had a different distribution in Northeastern and Northwestern China. The northeastern populations had more private haplotypes than the northwestern populations. A large number of the individuals from northwestern populations shared a few haplotypes of each of the three genes. The haplotype numbers and haplotype diversities of the northeastern populations were similar to those of field populations in other countries, but were higher than those of the northwestern populations. Populations from the Northwestern China showed similar haplotype number and haplotype diversity. We conclude that the population genetic background of C. pomonella populations in Northeastern and Northwestern China varies due to different invasion sources and that this should be considered before the application of new pest control tactics.
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Affiliation(s)
- Y Li
- Key Laboratory of Crop Pest Integrated Pest Management on the Loess Plateau of Ministry of Agriculture,Northwest A&F University,Yangling 712100,Shaanxi,China
| | - X Duan
- Key Laboratory of Crop Pest Integrated Pest Management on the Loess Plateau of Ministry of Agriculture,Northwest A&F University,Yangling 712100,Shaanxi,China
| | - X Qiao
- College of Veterinary Medicine,Northwest A&F University,Yangling 712100,Shaanxi,China
| | - X Li
- Key Laboratory of Crop Pest Integrated Pest Management on the Loess Plateau of Ministry of Agriculture,Northwest A&F University,Yangling 712100,Shaanxi,China
| | - K Wang
- Key Laboratory of Crop Pest Integrated Pest Management on the Loess Plateau of Ministry of Agriculture,Northwest A&F University,Yangling 712100,Shaanxi,China
| | - Q Men
- Key Laboratory of Crop Pest Integrated Pest Management on the Loess Plateau of Ministry of Agriculture,Northwest A&F University,Yangling 712100,Shaanxi,China
| | - M Chen
- Key Laboratory of Crop Pest Integrated Pest Management on the Loess Plateau of Ministry of Agriculture,Northwest A&F University,Yangling 712100,Shaanxi,China
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Kirk H, Dorn S, Mazzi D. Molecular genetics and genomics generate new insights into invertebrate pest invasions. Evol Appl 2013; 6:842-856. [PMID: 29387170 PMCID: PMC5779122 DOI: 10.1111/eva.12071] [Citation(s) in RCA: 58] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/29/2012] [Accepted: 02/28/2013] [Indexed: 01/08/2023] Open
Abstract
Invertebrate pest invasions and outbreaks are associated with high social, economic, and ecological costs, and their significance will intensify with an increasing pressure on agricultural productivity as a result of human population growth and climate change. New molecular genetic and genomic techniques are available and accessible, but have been grossly underutilized in studies of invertebrate pest invasions, despite that they are useful tools for applied pest management and for understanding fundamental features of pest invasions including pest population demographics and adaptation of pests to novel and/or changing environments. Here, we review current applications of molecular genetics and genomics in the study of invertebrate pest invasions and outbreaks, and we highlight shortcomings from the current body of research. We then discuss recent conceptual and methodological advances in the areas of molecular genetics/genomics and data analysis, and we highlight how these advances will further our understanding of the demographic, ecological, and evolutionary features of invertebrate pest invasions. We are now well equipped to use molecular data to understand invertebrate dispersal and adaptation, and this knowledge has valuable applications in agriculture at a time when these are critically required.
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Affiliation(s)
- Heather Kirk
- ETH ZurichInstitute of Agricultural Sciences, Applied EntomologyZurichSwitzerland
- Present address:
University of ZurichInstitute of Systematic BotanyZurichSwitzerland
| | - Silvia Dorn
- ETH ZurichInstitute of Agricultural Sciences, Applied EntomologyZurichSwitzerland
| | - Dominique Mazzi
- ETH ZurichInstitute of Agricultural Sciences, Applied EntomologyZurichSwitzerland
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