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Article
Open AccessEstimating bee distributions and their functional range to map important areas for protecting bee species and their functions
The decline of wild bee populations causes the decline of bee-pollinated plant populations through the deterioration of pollination services. Since high bee species richness generally involves high functional ...
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Article
Integration of satellite remote sensing and MaxEnt modeling for improved detection and management of forest pests
Forest pests pose a major threat to ecosystem services worldwide, requiring effective monitoring and management strategies. Recently, satellite remote sensing has emerged as a valuable tool to detect defoliati...
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Article
Open AccessPolyandry may mitigate the negative impact of reproductive interference among bumblebees in Japan
In social hymenopterans, monandry of the queen is an ancestral trait, and polyandry is a derived trait. Polyandry of the queen is the norm in a limited number of lineages, such as honeybees, leaf-cutting ants, Po...
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Article
Phylogenetic and population genetic analyses of plantago asiatica mosaic virus isolates reveal intraspecific diversification
Plantago asiatica mosaic virus (PlAMV) infects ornamental lilies and causes severe necrotic symptoms. PlAMV has also been isolated from several perennial weeds, including Plantago asiatica. While multiple isolate...
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Article
Long-term monitoring of changes in the native bumblebee community after alien species (Bombus terrestris) invasion and estimation of factors affecting its abundance
Invasive alien species can negatively affect native species communities. Bombus terrestris, an invasive species, has become dominant among bumblebee communities in many areas worldwide. In 2007, B. terrestris inv...
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Article
Distinct effects of three Wolbachia strains on fitness and immune traits in Homona magnanima
The endosymbiotic bacterium Wolbachia occasionally increases host fitness or manipulates host reproductions to enhance vertical transmission. Multiple Wolbachia strains can coinfect the same host individual, whic...
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Article
Open AccessIn vitro larval rearing method of eusocial bumblebee Bombus terrestris for toxicity test
Bumblebees are important pollinators of wild and agricultural plants but recently have been declining due to various stressors, such as pesticides and diseases. Because of the haplo-diploid sex determination s...
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Article
Open AccessConfirmation of Oryctes rhinoceros nudivirus infections in G-haplotype coconut rhinoceros beetles (Oryctes rhinoceros) from Palauan PCR-positive populations
Coconut rhinoceros beetle (CRB), Oryctes rhinoceros, is a pest of palm trees in the Pacific. Recently, a remarkable degree of palm damage reported in Guam, Hawaii, Papua New Guinea and Solomon Islands has been as...
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Article
The effects of Nosema ceranae (Microspora: Nosematidae) isolated from wild Apis cerana japonica (Hymenoptera: Apidae) on Apis mellifera
The microsporidian Nosema ceranae commonly infects the Asian honey bee Apis cerana Fabricius (Hymenoptera: Apidae) and poses a high potential risk to co-occurring A. mellifera. Here, we demonstrated the effect of...
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Article
Coexistence of Two Male-Killers and Their Impact on the Development of Oriental Tea Tortrix Homona magnanima
Male-killing, the death of male offspring induced by maternally transmitted microbes, is classified as early, or late, male-killing. The primary advantage afforded by early male-killing, which typically occurs...
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Article
Closely Related Male-Killing and Nonmale-Killing Wolbachia Strains in the Oriental Tea Tortrix Homona magnanima
Wolbachia are inherited intracellular bacteria that cause male-specific death in some arthropods, called male-killing. To date, three Wolbachia strains have been identified in the oriental tea tortrix Homona magn...
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Article
Open AccessDirect and sensitive detection of a microsporidian parasite of bumblebees using loop-mediated isothermal amplification (LAMP)
The reduction of bumblebee populations has been reported in the last decades, and the microsporidian parasite Nosema bombi is considered as one of the factors contributing to such reduction. Although the decline ...
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Article
Multiple Infection and Reproductive Manipulations of Wolbachia in Homona magnanima (Lepidoptera: Tortricidae)
Endosymbiotic bacterium Wolbachia interacts with host in either a mutualistic or parasitic manner. Wolbachia is frequently identified in various arthropod species, and to date, Wolbachia infections have been dete...
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Article
Effect of granulovirus infection of Spodoptera litura (Lepidoptera: Noctuidae) larvae on development of the endoparasitoid Chelonus inanitus (Hymenoptera: Braconidae)
Infection of parasitized Spodoptera litura (Fabricius) (Lepidoptera: Noctuidae) larvae by a granulovirus (GV) deleteriously affected the development of the endoparasitoid Chelonus inanitus (Linnaeus) (Hymenoptera...
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Article
Ecological impacts on native ant and ground-dwelling animal communities through Argentine ant (Linepithema humile) (Hymenoptera: Formicidae) management in Japan
In the last 30 years some limited successes in alien ant control have been documented globally, and control programs remain challenging. Moreover, the potential non-target impacts of toxicants have not been we...
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Article
Different acute toxicity of fipronil baits on invasive Linepithema humile supercolonies and some non-target ground arthropods
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...
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Article
Potential increase in mating frequency of queens in feral colonies of Bombus terrestris introduced into Japan
With the exception of several species, bumblebees are monandrous. We examined mating frequency in feral colonies of the introduced bumblebee Bombus terrestris in Japan. Using microsatellite markers, genoty** of...
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Article
Displacement of Japanese native bumblebees by the recently introduced Bombus terrestris (L.) (Hymenoptera: Apidae)
The introduced Bombus terrestris has recently been naturalized in Japan and become dominant in some local communities. We investigated potential niche overlaps between introduced and native bumblebees in terms of...
