Explanipedia

Multifaceted effects of variable biotic interactions on population stability in complex interaction webs Open

Koya Hashimoto, Daisuke Hayasaka, Yuji Eguchi, Yugo Seko, Ji Fei Cai , et al. · 2024

Recent studies have revealed that biotic interactions in ecological communities vary over time, possibly mediating community responses to anthropogenic disturbances. This study investigated the heterogeneity of such variability within a re…

The impact of landscape structure on pesticide exposure to honey bees Open

Shumpei Hisamoto, Makihiko Ikegami, Koichi Goka, Yoshiko Sakamoto · 2024

Pesticides may have serious negative impacts on bee populations. The pesticide exposure of bees could depend on the surrounding landscapes in which they forage. In this study, we assess pesticide exposure across various land-use categories…

Polyandry may mitigate the negative impact of reproductive interference among bumblebees in Japan Open

Fumina Inokuchi, Maki N. Inoue, Yuya Kanbe, Masaaki Ito, J. Takahashi , et al. · 2024

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, Pogonomyrmex ants, and Vespul…

Novel approach for detecting classical swine fever virus from swabs of wild boar cut tails using nested real-time PCR Open

Kei Nabeshima, Takeo Kuriyama, Shun Takagi, Taro SUGIMOTO, Mayumi Yokoyama , et al. · 2024

We devised a method to detect the classical swine fever virus (CSFV) in tail-wiped swabs from wild boars. The CSFV gene in swabs was detected with high sensitivity using nested real-time polymerase chain reaction (PCR), which is a combinat…

The Importance of Dialogue Between Science and the Public Shown in the Invasive Bumblebee Problem Open

Koichi Goka · 2024

No Evidence of SARS‐CoV‐2 Infection in Urban Wildlife of Hokkaido, Japan Open

Anastasiia Kovba, Naganori Nao, Michito Shimozuru, Mariko Sashika, Chihiro Takahata , et al. · 2024

Various domestic and wildlife species have been found susceptible to and infected with SARS‐CoV‐2, the causative agent of COVID‐19, around the globe, raising concerns about virus adaptation and transmission to new animal hosts. The virus c…

Sequencing methods for HA and NA genes of avian influenza viruses from wild bird feces using Oxford Nanopore sequencing Open

Kei Nabeshima, Shingo Asakura, Ritsuko Iwata, Hisako Honjo, Atsushi Haga , et al. · 2023

We developed a method to determine the sequences of hemagglutinin (HA) and neuraminidase (NA) from RNA extracted directly from wild bird fecal samples, using Nanopore Flongle. We determined the nucleotide sequences and subtypes of HA and N…

Acute toxicity data of common agricultural insecticides to Japanese wild bees Open

Yugo Seko, Makihiko Ikegami, Tomoyuki Yokoi, Mito Ikemoto, Koichi Goka , et al. · 2023

Although numerous ecotoxicological assessments of European honeybee (Apis mellifera L.) have been performed, Japanese wild bees are less well studied in this regard. To address this knowledge gap, we assessed the mortality and acute…

Sequencing Methods for Ha and Na Genes of Avian Influenza Viruses from Wild Bird Feces Using Oxford Nanopore Sequencing Open

Kei Nabeshima, Shingo Asakura, Ritsuko Iwata, Hisako Honjo, Atsushi Haga , et al. · 2023

Challenges of integrated management in tick-borne zoonosis control Open

Kimiko Okabe, Koichi Goka, Hayato Iijima, Yuya Watari, Takeo Yamauchi · 2022

マダニはヒトの人獣共通感染症の一般的な媒介動物である．特に畜産分野では数十年にわたり化学的防除が行われてきたが，その結果，海外ではマダニが農薬に対する抵抗性の獲得が顕在化した．また，化学物質の使用による環境汚染や人体への影響から，生物的防除，免疫学的・遺伝学的手法，野生生物管理などの非農薬的防除が盛んになってきている．しかし，どの対策も結果が一様でなくまたコストも高く，納得のいく結果が得られていない．特に生物的防除の規模は時空間的に限られており，野生動物管理における適切な対…

Efficiency of ant-control agents in colony-level oral toxicity tests using Tetramorium tsushimae (Hymenoptera: Formicidae) for post-establishment control of the red imported fire ant, Solenopsis invicta (Hymenoptera: Formicidae) Open

Hironori Sakamoto, Koichi Goka · 2022

The red imported fire ant Solenopsis invicta Buren (Hymenoptera: Formicidae) causes serious damage worldwide as an invasive alien species. The species has expanded its range to the Pacific Rim since 2000s and Japan has faced its multiple i…

Effectiveness of allyl isothiocyanate microencapsulated in polyethylene as a repellent against Solenopsis invicta (Hymenoptera: Formicidae) infestation of corrugated cardboard boxes in field experiment Open

Yoshiaki Hashimoto, Hironori Sakamoto, Hiromi Asai, Masamitsu Yasoshima, Hui-Min Lin , et al. · 2022

Solenopsis invicta Buren (Hymenoptera: Formicidae; red imported fire ant) is an invasive species in several parts of the world. A major contributor to the spread of S. invicta is infested shipping containers. The vapor of allyl isothiocyan…

Subtyping of Avian Influenza from Feces or Swabs Using Oxford Nanopore Sequencing Open

Kei Nabeshima, Shingo Asakura, Ritsuko Iwata, Hisako Honjo, Atsushi Haga , et al. · 2022

Multifaceted effects of variable biotic interactions on population stability in complex interaction webs Open

Koya Hashimoto, Daisuke Hayasaka, Yuji Eguchi, Yugo Seko, Ji Fei Cai , et al. · 2021

Recent studies have revealed that biotic interactions in ecological communities vary over time, possibly mediating community responses to anthropogenic disturbances. This study investigated the heterogeneity of such variability within a re…

A simulation to identify the optimal area to survey in the early stage of invasion by Solenopsis invicta Open

Shumpei Hisamoto, Koichi Goka, Yoshiko Sakamoto · 2021

Efforts to eradicate invasive alien species commonly use simulations to calculate the cost-effectiveness of surveys. Although eradication of Solenopsis invicta in the early stages of an invasion is important, few simulations are available …

Distribution and Genetic Diversity of the Amphibian Chytrid in Japan Open

Koichi Goka, Jun Yokoyama, A Tominaga · 2021

While research on frog chytrid fungus Batrachochytrium dendrobatidis (Bd), an infectious disease that threatens amphibian diversity, continues to advance worldwide, little progress has been made in Japan since around 2010. The reason for t…

Acute toxicity of typical ant control agents to the red imported fire ant, Solenopsis invicta (Hymenoptera: Formicidae) Open

Hironori Sakamoto, Koichi Goka · 2021

The red imported fire ant Solenopsis invicta Buren (Hymenoptera: Formicidae), is a serious invasive alien ant around the world and has expanded its invasive range to the Pacific Rim since the early 2000s. It was first reported in Japan in …

Ecological approach for zoonosis-consideration of infectious disease risk from the view point of biological diversity Open

Koichi Goka · 2020

Pathogenic microorganisms and virus are components of ecosystems, constructing endemic inter-relationships with each specific host species thorough the co-evolutional history. The spill-over of the pathogens from natural habitats into othe…

The effect of fumigation with microencapsulated allyl isothiocyanate in a gas-barrier bag against Solenopsis invicta (Hymenoptera: Formicidae) Open

Yoshiaki Hashimoto, Hironori Sakamoto, Hiromi Asai, Masamitsu Yasoshima, Hui-Min Lin , et al. · 2020

Red imported fire ants, Solenopsis invicta Buren (Hymenoptera: Formicidae), which are among the most harmful alien ants, were first detected in Japan in a shipping container from China in May 2017, and continue to enter Japan via this trad…

Long-term monitoring reveals among-year consistency in the ecological impacts of insecticides on animal communities in paddies Open

Koya Hashimoto, Atsushi Kasai, Daisuke Hayasaka, Koichi Goka, Takehiko I. Hayashi · 2020

Semi-natural mesocosm experiments have been proposed as a powerful approach for evaluating the realised rather than potential ecotoxicological effects of agrochemicals on biological communities. However, there is uncertainty in the results…

Epidemiologic Survey of Avian Influenza Virus Infection in Shorebirds Captured in Hokkaido, Japan Open

Masayoshi Kakogawa, Manabu Onuma, Keisuke Saito, Yukiko Watanabe, Koichi Goka , et al. · 2020

There is limited information about virus epidemiology of shorebirds (family Charadriidae and Scolopacidae) in the East Asia-Australasia flyway. We investigated the prevalence of avian influenza viruses (AIVs) in shorebirds in Hokkaido, Jap…

Effects of Fipronil on Non-target Ants and Other Invertebrates in a Program for Eradication of the Argentine Ant, Linepithema humile Open

Yoshiko Sakamoto, Takehiko I. Hayashi, Maki N. Inoue, Hitoshi Ohnishi, Toshio Kishimoto , et al. · 2019

Pesticides are frequently used to eradicate invasive ant species, but pose ecological harm. Previous studies assessed non-target effects only in terms of the increase or decrease of abundance or species richness after pesticide application…

Rapid detection of the red fire ant Solenopsis invicta (Hymenoptera: Formicidae) by loop-mediated isothermal amplification Open

Nobuyoshi Nakajima, Yoshiko Sakamoto, Koichi Goka · 2019

We developed a loop-mediated isothermal amplification (LAMP) assay to detect the red imported fire ant, Solenopsis invicta Buren, an invasive species in Japan. We designed species-specific LAMP primers on the basis of the nucleotide sequen…

Reproductive Interference in an Introduced Bumblebee: Polyandry may Mitigate Negative Reproductive Impact Open

Koji Tsuchida, A Yamaguchi, Yuya Kanbe, Koichi Goka · 2019

As a signature of reproductive interference (RI), we reviewed hybrid production in eusocial bumblebees in Japan, by comparing introduced Bombus terrestris with native B. ignitus in Honshu (main island of Japan) and with native B. hypocrita…

Effects of a herbicide on paddy predatory insects depend on their microhabitat use and an insecticide application (dataset) Open

Koya Hashimoto, Yuji Eguchi, Hiroki Oishi, Yuhei Tazunoki, Makoto Tokuda , et al. · 2019

1. Hashimoto_et_al.2019_Community2017.csvAbundance data of the paddy mesocosm experiment described in the manuscript. Contain time-series abundance of each observed species in each tank.2. Hashimoto_et_al.2019_SagaCensus2018March.csvAbunda…

Effects of short-term, sublethal fipronil and its metabolite on dragonfly feeding activity Open

Hiroshi Jinguji, Kazuhisa Ohtsu, Tetsuyuki Uéda, Koichi Goka · 2018

Dragonflies, Sympetrum spp., are indispensable to agriculture and are a central element of culture in Japan. However, S. frequens populations in rice paddy fields have declined in recent decades. Dragonfly larvae are predatory aquatic inse…

Environmental context and differences between native and invasive observed niches of <i>Batrachochytrium salamandrivorans</i> affect invasion risk assessments in the Western Palaearctic Open

Wouter Beukema, An Martel, Tao Thien Nguyen, Koichi Goka, Dirk S. Schmeller , et al. · 2018

Aim Identifying hosts and regions susceptible to invasion by an emerged pathogen is vital to inform early risk assessments. We here show how differences between a pathogen's native and invasive observed niche and their underlying environme…

Author Correction: Declaration of local chemical eradication of the Argentine ant: Bayesian estimation with a multinomial-mixture model Open

Yoshiko Sakamoto, Naoki H. Kumagai, Koichi Goka · 2018

Correction to: Surveys of the ant faunas atports of Tokyo Bay and the Ogasawara Islands Open

Yoshiko Sakamoto, Hideaki Mori, Hitoshi Ohnishi, Hitoshi Imai, Toshio Kishimoto , et al. · 2018

Practical Research on Biodiversity Education through Playing a Card Game Open

Tsukasa WATANABE, Chikako SAITO, Yuko Suzuki, Yasuomi MINAGAWA, Shinsuke OGAWARA , et al. · 2018

We developed a card game called “My Nature” to foster learning about biodiversity. This game simulates one of the issues concerning biodiversity; namely, various human activities that lead to reducing native species and increasing non-nati…

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