A5053376061- Animal Behavior and Reproduction
- Plant and animal studies
- Insect-Plant Interactions and Control
- Avian ecology and behavior
- Animal Vocal Communication and Behavior
- Insect behavior and control techniques
- Evolutionary Game Theory and Cooperation
- Wildlife Ecology and Conservation
- Amphibian and Reptile Biology
- Bat Biology and Ecology Studies
- Hymenoptera taxonomy and phylogeny
- Insect Pest Control Strategies
- Forest Insect Ecology and Management
- Insect symbiosis and bacterial influences
- Lepidoptera: Biology and Taxonomy
- Evolutionary Psychology and Human Behavior
The University of Tokyo
2025
Japan Wildlife Research Center
2025
The Graduate University for Advanced Studies, SOKENDAI
2019-2022
Hokkaido University
2013-2022
University of Exeter
2019
Macquarie University
2016
Abstract Our understanding of fundamental organismal biology has been disproportionately influenced by studies a relatively small number ‘model’ species extensively studied in captivity. Laboratory populations model are commonly subject to forms past and current selection that may affect experimental outcomes. Here, we examine these processes their outcomes one the most widely used vertebrate laboratory – zebra finch ( Taeniopygia guttata ). This important is for research across broad range...
Abstract Overwintering features of Drosophila parasitoids were studied in a temperate region Japan, an outdoor rearing experiment conducted from autumn to spring. Eight taxa, Asobara japonica , A. leveri brevicauda Leptolamina sp. TK1, Leptopilina tsushimaensis Ganaspis lupini and Trichopria drosophilae collected this study. Among them, the first five emerged spring, suggesting that they overwintered diapause at preimaginal stage. In three species, however, number individuals as adults all...
Abstract Drosophila suzukii is a pest of soft fruit such as cherry, strawberry or blueberry and recently colonized North America Europe from Asia. In this study, we assessed the utility Japanese Asobara species agents for biological control by examining their host use in nature capacity to parasitize species. From Japan, eight including putative three undescribed were found; japonica was recorded all over tabida high altitude areas central northern rossica rufescens western southern Japan...
Alloparental care by distant/nonkin that accrue few kin-selected benefits requires direct fitness to evolve. The pay-to-stay hypothesis, under which helpers contribute alloparental avoid being expelled from the group dominant individuals, offers one such explanation. Here, we investigated 2 key predictions derived hypothesis using chestnut-crowed babbler, Pomatostomus ruficeps, a cooperatively breeding bird where helping is common (18% of nonbreeding helpers). First, found no indication...
Although theory developed to understand carer response rules in cooperative breeders typically predicts partial compensation, where additional investment by one is optimally met incomplete reductions the other, fully additive care a viable alternative under particular conditions. Primary among these conditions an opportunity for both existing and carers gain comparable fitness from contributing rearing offspring. That, number of birds, at least parent often maintains its level contribution...
Abstract Wasps of the genus L eptopilina ( H ymenoptera: F igitidae) are larvo–pupal parasitoids D rosophila species. Here we report three putative thelytokous species this from J apan, with description two new . tokioensis and tsushimaensis , which have been recorded central apan T sushima, respectively. Another is longipes occurring in northern although its E uropean populations assumed to be arrhenotokous. Preliminary phylogenetic analyses suggest present diversified one another also...
Recent theoretical and empirical work suggests that coordinating offspring provisioning plays a significant role in stabilising cooperative care systems, with benefits to developing young. However, warming increasingly extreme climate might be expected make contributions to, so coordination of, more challenging, particularly breeding systems comprising multiple carers of varying age pair-wise relatedness. Here we investigated the interplay between phenology, meteorological conditions carer...
The encounter with relatives at the time of mating can be reduced if one or both sexes breed away from natal site, and it is often assumed that this occurs to a lesser extent on islands where only short dispersal possible. However, endemic insular populations may have evolved fine-tuned patterns enabling effective avoidance inbreeding even in small habitat, influence spatial constraint should more apparent for non-endemic than populations. Recently established island originally migratory...
Abstract For identification of insect larvae occurring in galls formed on culms Sasa kurilensis Shiga‐kôgen, Nagano and those Pseudosasa japonica Takao‐san, Tokyo, we undertook a DNA barcoding analysis using the mitochondrial cytochrome oxidase subunit 1 ( CO1 ) gene. Seventeen operational taxonomic units (OTUs) were identified for from Shiga‐kôgen one Takao‐san. Of 17 OTUs 10 most likely assigned to Cecidomyiidae (Diptera), Anthomyzidae two Lepidoptera four Hymenoptera. One OTU Takao‐san...