Fuminori Ito
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View article: Ant-plants as oases: Colonies of Cladomyrma sirindhornae (Hymenoptera, Formicidae) thrive in their host plants Sphenodesme pentandra in both the wet and dry seasons
Ant-plants as oases: Colonies of Cladomyrma sirindhornae (Hymenoptera, Formicidae) thrive in their host plants Sphenodesme pentandra in both the wet and dry seasons Open
Seasonal changes affect the distribution and behavior of animals. Ant societies are strongly affected by the dry season: they suffer from high temperatures and desiccation, but also from the lower availability of insect prey. However, some…
View article: Taxonomic study on the queens of the Japanese ponerine genera, with a redescription of Ectomomyrmex horni restituted as a valid species (Hymenoptera: Formicidae)
Taxonomic study on the queens of the Japanese ponerine genera, with a redescription of Ectomomyrmex horni restituted as a valid species (Hymenoptera: Formicidae) Open
Queen ants of the Japanese ponerine genera are described, with the first key to the Japanese genera based on the queen caste. Important queen characters are enumerated and caste differences are discussed for each genus. Physical and behavi…
View article: Signals of positive selection in genomes of palearctic Myotis-bats coexisting with a fungal pathogen
Signals of positive selection in genomes of palearctic Myotis-bats coexisting with a fungal pathogen Open
View article: ANT SPECIES DIVERSITY (HYMENOPTERA, FORMICIDAE) IN THE PURWODADI BOTANICAL GARDENS, EAST JAVA, INDONESIA
ANT SPECIES DIVERSITY (HYMENOPTERA, FORMICIDAE) IN THE PURWODADI BOTANICAL GARDENS, EAST JAVA, INDONESIA Open
The ant species diversity in tropical Asia has been investigated in several locations, however, these studies mainly focused on well preserved forests or plantations. The ant fauna in urban parks has only been investigated in a limited num…
View article: Signals of positive selection in Palearctic bat species coexisting with a fungal pathogen
Signals of positive selection in Palearctic bat species coexisting with a fungal pathogen Open
Traits that directly influence the survival of an organism are suspect to positive selection. Disease can act as a driving force in shaping the genetic makeup across populations, even species, if the impacts are influencing a particularly …
View article: Specialized predation on arthropod eggs in the myrmicine ant <i>Calyptomyrmex rectopilosus</i><i> </i>collected in northern Vietnam, with a description of new species of <i>Calyptomyrmex</i><i> </i>from Bogor, West Java, Indonesia
Specialized predation on arthropod eggs in the myrmicine ant <i>Calyptomyrmex rectopilosus</i><i> </i>collected in northern Vietnam, with a description of new species of <i>Calyptomyrmex</i><i> </i>from Bogor, West Java, Indonesia Open
The foraging and feeding behaviors were observed for the myrmicine ant Calyptomyrmex rectopilosus collected in northern Vietnam. C. rectopilosus was found to be a specialized predator on the arthropod eggs, and the queen fed on trophic egg…
View article: Parthenogenetic Reproduction in Strumigenys Ants: An Update
Parthenogenetic Reproduction in Strumigenys Ants: An Update Open
Parthenogenetic reproduction is a common feature for social Hymenoptera, as males typically develop from unfertilized eggs (arrhenotoky). Production of female offspring without the involvement of sperm (thelytoky) also exists but is rather…
View article: Colony composition and behavioral characteristics of the myrmicine ant, <i>Aphaenogaster rugulosa</i>, an endemic species to Yonagunijima Island, the westernmost point of Japan (Hymenoptera: Formicidae)
Colony composition and behavioral characteristics of the myrmicine ant, <i>Aphaenogaster rugulosa</i>, an endemic species to Yonagunijima Island, the westernmost point of Japan (Hymenoptera: Formicidae) Open
Colony composition and behavioral characteristics of the myrmicine ant, Aphaenogaster rugulosa, a species endemic to Yonagunijima Island, were investigated. Colonies nested in rotten woods fallen on the forest floor. All queenright colonie…
View article: Japanese Tetramorium queens: identification key and species diagnoses (Hymenoptera, Formicidae, Myrmicinae)
Japanese Tetramorium queens: identification key and species diagnoses (Hymenoptera, Formicidae, Myrmicinae) Open
In Japan, nine species have been known in the ant genus Tetramorium , of which five or more are considered tramps. A key to the queens of nine Tetramorium species found in Japan is presented. The tramp species T. tonganum Mayr, 1870 is exc…
View article: Japanese Tetramorium queens: identification key and species diagnoses (Hymenoptera, Formicidae, Myrmicinae)
Japanese Tetramorium queens: identification key and species diagnoses (Hymenoptera, Formicidae, Myrmicinae) Open
This dataset contains the digitized treatments in Plazi based on the original journal article Yamane 1, Seiki, Hosoishi 2, Shingo, Ito 3, Fuminori (2022): Japanese Tetramorium queens: identification key and species diagnoses (Hymenoptera, …
View article: Geographic patterns in colonial reproductive strategy in <i>Myrmecina nipponica</i> : Links between biogeography and a key polymorphism in ants
Geographic patterns in colonial reproductive strategy in <i>Myrmecina nipponica</i> : Links between biogeography and a key polymorphism in ants Open
The ability to express different phenotypes can help define species distributions by allowing access to, and exploitation of, new environments. Social insects employ two markedly different reproductive strategies with contrasting cost/bene…
View article: Daily and Seasonal Foraging Activity of the Oriental Non-army Ant Doryline Cerapachys sulcinodis Species Complex (Hymenoptera: Formicidae)
Daily and Seasonal Foraging Activity of the Oriental Non-army Ant Doryline Cerapachys sulcinodis Species Complex (Hymenoptera: Formicidae) Open
The ant subfamily Dorylinae contains the true army ant genera, the species of which are dominant predators, as well as non-army ants. Some of the non-army ant genera are closely related to true army ants, so they could be an important key …
View article: Queen polymorphism in Acanthomyrmex careoscrobis Moffett, 1986 in Peninsular Malaysia (Hymenoptera: Formicidae: Myrmicinae), with descriptions of hitherto unknown female castes and males
Queen polymorphism in Acanthomyrmex careoscrobis Moffett, 1986 in Peninsular Malaysia (Hymenoptera: Formicidae: Myrmicinae), with descriptions of hitherto unknown female castes and males Open
The present study presents biological observations on colony characteristics of Acanthomyrmex careoscrobis Moffett, 1986 in Ulu Gombak (Selangor, Malaysia), with redescription of the minor worker and descriptions of the hitherto unknown fe…
View article: Colony composition, brood production and caste dimorphism in two species of the doryline genus Lioponera in the Oriental tropics (Formicidae: Dorylinae)
Colony composition, brood production and caste dimorphism in two species of the doryline genus Lioponera in the Oriental tropics (Formicidae: Dorylinae) Open
Recent phylogenetic research indicates that the true army ants (e.g. Aenictus, Dorylus, Eciton, Neivamyrmex) belong to the subfamily Dorylinae, together with several non-army ant genera such as Cerapachys, Yunodorylus, Lioponera and Oocera…
View article: Adaptive phenotypic variation among clonal ant workers
Adaptive phenotypic variation among clonal ant workers Open
Phenotypic variations are observed in most organisms, but their significance is not always known. The phenotypic variations observed in social insects are exceptions. Genetically based response threshold variances have been identified amon…
View article: Supplementary material from "Adaptive phenotypic variation among clonal ant workers"
Supplementary material from "Adaptive phenotypic variation among clonal ant workers" Open
Phenotypic variations are observed in most organisms, but their significance is not always known. The phenotypic variations observed in social insects are exceptions. Genetically based response threshold variances have been identified amon…
View article: Colony composition and nesting habits of six species of Aphaenogaster in Thailand (Hymenoptera; Formicidae)
Colony composition and nesting habits of six species of Aphaenogaster in Thailand (Hymenoptera; Formicidae) Open
Aphaenogaster ants are known as predators and seed dispersers in temperate forests. The biological information of tropical Aphaenogaster, however, is still limited. We investigated the nesting habits and colony composition of six Aphaenoga…
View article: Transcriptome profiling of the spermatheca identifies genes potentially involved in the long-term sperm storage of ant queens
Transcriptome profiling of the spermatheca identifies genes potentially involved in the long-term sperm storage of ant queens Open
View article: Worker reproduction of the invasive yellow crazy ant Anoplolepis gracilipes
Worker reproduction of the invasive yellow crazy ant Anoplolepis gracilipes Open
We propose that adaptive advantages derived from worker reproduction for A. gracilipes may include 1) trophic eggs provisioned by physogastric workers likely assist colonies of A. gracilipes in overcoming unfavorable conditio…
View article: Harvesting fig seeds from bird feces by an Oriental myrmicine ant species, Acanthomyrmex ferox Emery, 1893 (Hymenoptera: Formicidae)
Harvesting fig seeds from bird feces by an Oriental myrmicine ant species, Acanthomyrmex ferox Emery, 1893 (Hymenoptera: Formicidae) Open
Seed harvesting behavior of the Oriental myrmicine ant, Acanthomyrmex ferox was observed in Ulu Gombak, Peninsular Malaysia. Minor workers harvested fig seeds exclusively from bird feces dropped on the lower vegetation.
View article: Colony composition and behavioral characteristics of Myrmoteras iriodum and M. jaitrongi in Ulu Gombak, Peninsular Malaysia (Hymenoptera: Formicidae)
Colony composition and behavioral characteristics of Myrmoteras iriodum and M. jaitrongi in Ulu Gombak, Peninsular Malaysia (Hymenoptera: Formicidae) Open
The colony composition and behavioral characteristics of the trap-jaw ants Myrmoteras iriodum and M. jaitrongi were studied in Ulu Gombak, Peninsular Malaysia. The following colony characteristics were common in both species: (1) Colony si…
View article: Striking polymorphism among infertile helpers in the arboreal ant Gesomyrmex
Striking polymorphism among infertile helpers in the arboreal ant Gesomyrmex Open
Gesomyrmex (subfamily Formicinae) is a poorly known arboreal ant from the Oriental tropics. We sampled colonies in three localities (NE Thailand, peninsular Malaysia, and Sabah) and examined inhabitants of ten nests inside living branches.…
View article: First discovery of subdichthadiigyne in Yunodorylus Xu, 2000 (Formicidae: Dorylinae)
First discovery of subdichthadiigyne in Yunodorylus Xu, 2000 (Formicidae: Dorylinae) Open
Katsuyuki Eguchi, Riou Mizuno, Fuminori Ito, Rijal Satria, Dang Van An, Bui Tuan Viet, Phung Thi Hong Luong (2016): First discovery of subdichthadiigyne in Yunodorylus Xu, 2000 (Formicidae: Dorylinae). Revue suisse de Zoologie 123 (2): 307…
View article: Nesting and reproductive biology of Platythyrea sp. (parallela-group) in the Bogor Botanic Gardens, West Java, Indonesia (Hymenoptera: Formicidae)
Nesting and reproductive biology of Platythyrea sp. (parallela-group) in the Bogor Botanic Gardens, West Java, Indonesia (Hymenoptera: Formicidae) Open
I report the colony composition and nesting biology of Platythyrea sp. (parallela-group) in the Bogor Botanic Gardens, West Java. This species, which always nests in trees, reproduces through both dealated queens and mated workers. Among 1…
View article: Defensive function of petiole spines in queens and workers of the formicine ant Polyrhachis lamellidens (Hymenoptera: Formicidae) against an ant predator, the Japanese tree frog Hyla japonica
Defensive function of petiole spines in queens and workers of the formicine ant Polyrhachis lamellidens (Hymenoptera: Formicidae) against an ant predator, the Japanese tree frog Hyla japonica Open
The defensive function of petiole spines in queens and workers of the formicine ant Polyrhachis lamellidens was investigated using the ant predating tree frog Hyla japonica. Ant workers have hook-like large spines on their petiole while th…
View article: Queen execution increases relatedness among workers of the invasive Argentine ant,<i><scp>L</scp>inepithema humile</i>
Queen execution increases relatedness among workers of the invasive Argentine ant,<i><span>L</span>inepithema humile</i> Open
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, Line…
View article: Reuse of an Old Nest by the Polistine Wasp Polistes chinensis antennalis (Hymenoptera, Vespidae) in Western Japan
Reuse of an Old Nest by the Polistine Wasp Polistes chinensis antennalis (Hymenoptera, Vespidae) in Western Japan Open
Nest reuse has rarely been observed in Polistes wasps. I observed reuse of an old nest in P. chinensis antennalis in Takamatsu, Shikoku Isl. western Japan.