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You searched for: Subject Apodemus speciosus Remove constraint Subject: Apodemus speciosus
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1. Body Temperature Measurement Reveals the Reproductive Profile of Female Apodemus speciosus under Laboratory and Field Conditions

Author:
Akira Kuroyanagi; Rina Ukyo; Yoshinobu Kodama; Takeshi Eto; Yoshinobu Okubo; Ikuo Kobayashi; Seiji Ieiri; Tetsuo Morita; Shinsuke H. Sakamoto
Source:
Mammal study 2022 v.47 no.3 pp. 177-187
ISSN:
1348-6160
Subject:
Apodemus speciosus; body temperature; females; lactation; mammals; parturition; pregnancy
Abstract:
... This study illustrated body temperature (Tb) fluctuation during reproduction and discussed the effectiveness of measuring Tb for predicting the reproductive profile of female Apodemus speciosus both under laboratory and field conditions. Tb fluctuation was monitored for four breeding events in the laboratory and for three in the field. Individual variation in Tb fluctuation during reproduction was ...
DOI:
10.3106/ms2021-0048

2. DNA metabarcoding dietary analyses of the wood mouse Apodemus speciosus on Innoshima Island, Japan, and implications for primer choice

Author:
Jun J. Sato; Yuya Ohtsuki; Naoki Nishiura; Kumi Mouri
Source:
Mammal research 2022 v.67 no.1 pp. 109-122
ISSN:
2199-2401
Subject:
Apodemus speciosus; Citrus; DNA barcoding; Japan; Lymantria dispar; Pentatomidae; Quercus variabilis; chloroplasts; diet; forest pests; forests; humans; invertebrates; mice; mitochondria; mitochondrial DNA; orchards; research; spring; summer; winter
Abstract:
... We used DNA metabarcoding to assess the seasonal diets of the large Japanese wood mouse, Apodemus speciosus (Muridae, Rodentia), in forest edges adjacent to citrus orchards on Innoshima Island, Japan. We used one chloroplast and three mitochondrial DNA barcoding markers to determine mouse diets. Among the various plant and invertebrate diets, A. speciosus typically consumed Chinese cork oak (Querc ...
DOI:
10.1007/s13364-021-00601-7

3. How does the 120-year cycle mast seeding of dwarf bamboo affect the rodent population?

Author:
Hanami Suzuki; Haruka Kashiwagi; Hisashi Kajimura
Source:
Ecological processes 2022 v.11 no.1 pp. 43
ISSN:
2192-1709
Subject:
Apodemus speciosus; Eothenomys; Japan; Sasa; bamboos; body weight; deciduous forests; food availability; immigration; males; masting; population size; rodents; surveys; trees
Abstract:
... BACKGROUND: In 2017, large-scale flowering, seeding, and dying events of dwarf bamboo (Sasa borealis) occurred in a wide range in central Japan for the first time in 120 years. This phenomenon of S. borealis, like the mast seeding of trees, could be expected to provide a large amount of food for seed-eating rodents and gradually affect their ecology and population dynamics. We captured rodents in ...
DOI:
10.1186/s13717-022-00385-x

4. Comparative Morphology of the Male Genitalia of Japanese Muroidea Species

Author:
Takashi O. Yato; Masaharu Motokawa
Source:
Mammal study 2021 v.46 no.4 pp. 1-10
ISSN:
1348-6160
Subject:
Apodemus speciosus; Cricetidae; blood; bone formation; cartilage; histology; male genitalia; mammals; penis
Abstract:
... We examined the morphology of the male genitalia of six Muridae and five Cricetidae in the Muroidea focusing on the medial and lateral bacular mounds, as well as their ossification patterns to discuss the diversity and the movement mechanism of the trident structure. All examined species possessed a medial bacular mound and two lateral bacular mounds, which collectively formed a trident structure. ...
DOI:
10.3106/ms2020-0096

5. Radiocesium concentration ratios and radiation dose to wild rodents in Fukushima Prefecture

Author:
Donovan Anderson; Nicholas A. Beresford; Hiroko Ishiniwa; Manabu Onuma; Kenji Nanba; Thomas G. Hinton
Source:
Journal of environmental radioactivity 2021 v.226 pp. 106457
ISSN:
0265-931X
Subject:
Apodemus argenteus; Apodemus speciosus; Japan; absorbed dose; cesium radioisotopes; databases; environmental protection; radioactivity; rats; soil; wildlife
Abstract:
... Radiocesium was dispersed from the Fukushima Dai-ichi disaster in March 2011, causing comparatively high radioactive contamination in nearby environments. Radionuclide concentrations in wild rodents (Apodemus argenteus, and Apodemus speciosus) within these areas were monitored from 2012 to 2016. However, whole-organism to soil transfer parameters (i.e., concentration ratio, CRwₒ₋ₛₒᵢₗ) for wild rod ...
DOI:
10.1016/j.jenvrad.2020.106457

6. Rodent-Borne Orthohantaviruses in Vietnam, Madagascar and Japan

Author:
Fuka Kikuchi; Kae Senoo; Satoru Arai; Kimiyuki Tsuchiya; Nguyễn Trường Sơn; Masaharu Motokawa; Marie Claudine Ranorosoa; Saw Bawm; Kyaw San Lin; Hitoshi Suzuki; Akira Unno; Keisuke Nakata; Masashi Harada; Keiko Tanaka-Taya; Shigeru Morikawa; Motoi Suzuki; Tetsuya Mizutani; Richard Yanagihara
Source:
Viruses 2021 v.13 no.7 pp. -
ISSN:
1999-4915
Subject:
Apodemus argenteus; Apodemus speciosus; Hantaan orthohantavirus; Japan; Myodes; Puumala orthohantavirus; RNA; Rattus rattus; geographical distribution; lungs; mice; rats; small mammals; voles; Africa; Europe; Madagascar; Myanmar; Thailand; Vietnam
Abstract:
... Hantaviruses are harbored by multiple small mammal species in Asia, Europe, Africa, and the Americas. To ascertain the geographic distribution and virus-host relationships of rodent-borne hantaviruses in Japan, Vietnam, Myanmar, and Madagascar, RNAlater™-preserved lung tissues of 981 rodents representing 40 species, collected in 2011–2017, were analyzed for hantavirus RNA by RT-PCR. Our data showe ...
DOI:
10.3390/v13071343

7. Cold temperature improves tannin tolerance in a granivorous rodent

Author:
Hannah R. Windley; Takuya Shimada
Source:
journal of animal ecology 2020 v.89 no.2 pp. 471-481
ISSN:
0021-8790
Subject:
Apodemus speciosus; acclimation; acorns; ambient temperature; animal ecology; climate; cold; diet; digestible protein; granivores; liver function; population dynamics; secondary metabolites; toxicity; wood
Abstract:
... The foraging ecology of mammalian herbivores is regulated in part by their ability to detoxify plant secondary metabolites (PSM). Ambient temperature has been shown to alter liver function in rodents and the toxicity of some PSMs, but little is known about the physiological and nutritional consequences of consuming PSMs at different ambient temperatures. Furthermore, the effect of ambient temperat ...
DOI:
10.1111/1365-2656.13119

8. Evolutionary and Anthropogenic Factors Affecting the Mitochondrial D-loop Genetic Diversity of Apodemus and Myodes Rodents on the Northern Slope of Mt. Fuji

Author:
Jun J. Sato; Haruka Aiba; Kouichi Ohtake; Shusaku Minato
Source:
Mammal study 2020 v.45 no.4 pp. 315-325
ISSN:
1348-6160
Subject:
Apodemus argenteus; Apodemus speciosus; Japan; Myodes; anthropogenic activities; biodiversity; genetic variation; mitochondria; national parks; roads; topographic slope
Abstract:
... Nucleotide sequences of the mitochondrial D-loop region were examined in three wild rodents (Apodemus argenteus, Apodemus speciosus, and Myodes smithii) on the northern slope of Mt. Fuji, the highest mountain in Japan, to elucidate the past evolutionary and present anthropogenic processes shaping their genetic diversity. Nucleotide diversity, median-joining network, and mismatch distribution analy ...
DOI:
10.3106/ms2020-0033

9. Preliminary life history observations of the pseudoscorpion Megachernes ryugadensis (Pseudoscorpiones: Chernetidae) phoretic on wood mice in Japan

Author:
Kimiko Okabe; Takuya Shimada; Shun'ichi Makino
Source:
Journal of arachnology 2020 v.48 no.2 pp. 155-160
ISSN:
0161-8202
Subject:
Apodemus speciosus; Chernetidae; Japan; adults; bark; eggs; life history; mice; nymphs; soil; symbiosis; trees; wood
Abstract:
... Pseudoscorpions are predators of arthropods and primarily inhabit soil litter and tree bark in forests, although some species have been collected from animal nests, suggesting close associations with mammals and birds. We made preliminary observations on the life cycle and life history traits of Megachernes ryugadensisMorikawa, 1954, phoretic on the wood mice Apodemus speciosus and A. argenteus, b ...
DOI:
10.1636/0161-8202-48.2.155

10. Seasonal changes in the spermatogenesis of the large Japanese field mice (Apodemus speciosus) controlled by proliferation and apoptosis of germ cells

Author:
Jun Ito; Kanna Meguro; Kazuki Komatsu; Takuya Ohdaira; Rina Shoji; Takahisa Yamada; Satoshi Sugimura; Yohei Fujishima; Akifumi Nakata; Manabu Fukumoto; Tomisato Miura; Hideaki Yamashiro
Source:
Animal reproduction science 2020 v.214 pp. 106288
ISSN:
0378-4320
Subject:
Apodemus speciosus; animal models; animal reproduction; apoptosis; eosin; fluorescent antibody technique; germ cells; habitats; males; mice; mitosis; nucleotidyltransferases; proliferating cell nuclear antigen; seasonal variation; seminiferous tubules; spermatogenesis; staining; Japan
Abstract:
... The aim of this study was to investigate the proliferation and apoptosis of male germ cells during the seasonal reproductive cycle of the large Japanese field mice (Apodemus speciosus). Male mice residing in their natural habitat were captured in Niigata, Japan. Testis sections were stained with haematoxylin and eosin, and mitotic male germ cells were identified using immunofluorescence staining f ...
DOI:
10.1016/j.anireprosci.2020.106288

11. Skull-shape variation and modularity in two Japanese field mice, Apodemus speciosus and Apodemus argenteus (Rodentia: Muridae)

Author:
Jadab Kumar Biswas; Masaharu Motokawa
Source:
Zoologischer Anzeiger 2020 v.287 pp. 147-159
ISSN:
0044-5231
Subject:
Apodemus argenteus; Apodemus speciosus; diet; feeding methods; habitat preferences; habitats; interspecific variation; intraspecific variation; lifestyle; mice; morphometry; muscles; omnivores; skull
Abstract:
... Two congeneric species of Japanese field mice, Apodemus speciosus and Apodemus argenteus, differ considerably in their feeding strategies and habitat utilizations. Although both species are omnivorous, previous studies demonstrated that A. argenteus typically eats a wide variety of food items than A. speciosus. Moreover, A. speciosus is a ground dweller, while A. argenteus commonly shows arboreal ...
DOI:
10.1016/j.jcz.2020.06.002

12. Comparison of the intestinal helminth community of the large Japanese field mouse (Apodemus speciosus) between urban, rural, and natural sites in Hokkaido, Japan

Author:
Jason L. Anders; Minoru Nakao; Kenta Uchida; Christopher G. Ayer; Mitsuhiko Asakawa; Itsuro Koizumi
Source:
Parasitology international 2019 v.70 pp. 51-57
ISSN:
1383-5769
Subject:
Apodemus speciosus; ecological function; ecosystems; helminths; humans; intestines; land cover; mice; species richness; urban parks; wildlife; zoonoses; Japan
Abstract:
... Anthropogenic ecosystem modification has affected over 80% of the global land cover. Interest in its effects on wildlife has been growing over the past several decades, specifically in regard to biodiversity and ecosystem function. Parasites are of particular interest, because they directly impact animal health, and can be transmitted to humans through the process of zoonosis. However, most studie ...
DOI:
10.1016/j.parint.2019.02.001

13. Concentration of radioactive materials in small mammals collected from a restricted area in Fukushima, Japan since 2012

Author:
Hiroko Ishiniwa; Tsukasa Okano; Akira Yoshioka; Masanori Tamaoki; Yasushi Yokohata; Junji Shindo; Noriko Azuma; Nobuyoshi Nakajima; Manabu Onuma
Source:
Ecological research 2019 v.34 no.1 pp. 7
ISSN:
0912-3814
Subject:
Apodemus argenteus; Apodemus speciosus; Japan; Microtus; accidents; cesium radioisotopes; data collection; earthquakes; food webs; germanium; half life; head; home range; nuclear power; potassium; power plants; research; soil pollution; tsunamis
Abstract:
... Fukushima Daiichi Nuclear Power Plant was struck by a huge earthquake and tsunami, which ultimately released a large amount of radioactive material owing to steam explosion in March 2011. This accident affected extensive area and resulted in soil contamination, which would prevail over a long period. The contaminants included various types of nuclear materials, among which cesium (¹³⁴,¹³⁷Cs) has a ...
DOI:
10.1111/1440-1703.1016

14. Induction of superovulation using inhibin antiserum and competence of embryo development in wild large Japanese field mice (Apodemus speciosus)

Author:
Kanna Meguro; Kazuki Komatsu; Takuya Ohdaira; Naomi Nakagata; Akifumi Nakata; Manabu Fukumoto; Tomisato Miura; Hideaki Yamashiro
Source:
Reproduction in domestic animals 2019 v.54 no.12 pp. 1637-1642
ISSN:
0936-6768
Subject:
Apodemus speciosus; antiserum; blood serum; cryopreservation; embryo (animal); embryogenesis; endangered species; equine chorionic gonadotropin; freeze-thaw cycles; genetic variation; human chorionic gonadotropin; in vitro culture; in vitro fertilization; inhibin; mice; models; oocytes; ovulation; spermatozoa; superovulation
Abstract:
... Seasonally, bred wild mice provide a unique bioresource, with high genetic diversity that differs from wild‐derived mice and laboratory mice. This study aimed to establish an alternative superovulation method using wild large Japanese field mice (Apodemus speciosus) as the model species. Specifically, we investigated how the application of inhibin antiserum and equine chorionic gonadotropin (IASe) ...
DOI:
10.1111/rda.13573

15. Morphological Analysis of Static Skull Variation in the Large Japanese Field Mouse, Apodemus speciosus (Rodentia: Muridae)

Author:
Jadab Kumar Biswas; Masaharu Motokawa
Source:
Mammal study 2019 v.44 no.1 pp. 51-63
ISSN:
1348-6160
Subject:
Apodemus speciosus; allometry; discriminant analysis; females; males; mice; multivariate analysis; ontogeny; sexual dimorphism; skull; standard deviation
Abstract:
... Static skull morphological variation in the large Japanese field mouse (Apodemus speciosus) was analyzed using different indices of variability. Multivariate analysis of variance revealed sexual dimorphism in cranium and mandible sizes, among a total of 89 skulls (45 males and 44 females). The coefficient of variation (CV), standard deviation (SD), and residuals of the standard deviation (RSD) wer ...
DOI:
10.3106/ms2018-0033

16. Potential and Pitfalls of the DNA Metabarcoding Analyses for the Dietary Study of the Large Japanese Wood Mouse Apodemus speciosus on Seto Inland Sea Islands

Author:
Jun J. Sato; Daisuke Kyogoku; Taketo Komura; Chiaki Inamori; Kouhei Maeda; Yasunori Yamaguchi; Yuji Isagi
Source:
Mammal study 2019 v.44 no.4 pp. 221-231
ISSN:
1348-6160
Subject:
Apodemus speciosus; DNA barcoding; Noctuidae; Quercus; Rosaceae; chloroplasts; cytochrome-c oxidase; diet study techniques; feces; food composition; introns; islands; mitochondria; moths; orchards; pests; rodents; temperate zones
Abstract:
... We assessed the dietary profile of the large Japanese wood mouse (Apodemus speciosus) inhabiting the islands of the Seto Inland Sea and adjacent areas by DNA metabarcoding analyses of feces with the chloroplast trnL (UAA) P6 loop intron region and the mitochondrial cytochrome c oxidase subunit I gene as DNA-barcoding markers. The results indicated that A. speciosus consumed a variety of food items ...
DOI:
10.3106/ms2018-0067

17. Brachylaima asakawai sp. nov. (Trematoda: Brachylaimidae), a rodent intestinal fluke in Hokkaido, Japan, with a finding of the first and second intermediate hosts

Author:
Minoru Nakao; Mizuki Sasaki; Tsukasa Waki; Jason L. Anders; Hirotaka Katahira
Source:
Parasitology international 2018 v.67 no.5 pp. 565-574
ISSN:
1383-5769
Subject:
Apodemus argenteus; Apodemus speciosus; Brachylaima; Myodes; Rattus norvegicus; barcoding; birds; cercariae; flukes; hepatopancreas; intermediate hosts; intestines; kidneys; mitochondrial DNA; new species; nucleotide sequences; rodents; snails; surveys; testes; Japan
Abstract:
... In the 1970’s and 1980’s, an unknown species of the genus Brachylaima (Trematoda: Brachylaimidae) had been recorded from the intestines of Rattus norvegicus and Apodemus speciosus in Hokkaido, Japan. The rodent fluke was characteristic in extending a bilateral vitellarium till the level of posterior margin of anterior testis and in keeping almost the same-sized spherical ovary and testes. In this ...
DOI:
10.1016/j.parint.2018.04.010

18. Dietary niche partitioning between sympatric wood mouse species (Muridae: Apodemus) revealed by DNA meta-barcoding analysis

Author:
Jun J Sato; Takuya Shimada; Daisuke Kyogoku; Taketo Komura; Shigeru Uemura; Takashi Saitoh; Yuji Isagi
Source:
Journal of mammalogy 2018 v.99 no.4 pp. 952-964
ISSN:
1545-1542
Subject:
Apodemus argenteus; Apodemus speciosus; Betulaceae; DNA; Fabaceae; Fraxinus mandshurica; Malvaceae; Pinaceae; Quercus mongolica; Rutaceae; Sapindaceae; Ulmaceae; chloroplasts; diet; ecological differentiation; feces; genetic markers; interspecific variation; introns; niches; sympatry; Japan
Abstract:
... Plant diets of 2 sympatric species of wood mice in Japan (Apodemus argenteus and A. speciosus) were determined by DNA meta-barcoding analyses of feces using the nucleotide sequences of the chloroplast trnL P6 loop intron region as a molecular marker. The 2 species showed a relatively large degree of niche overlap in plant dietary profiles, feeding mostly on acorn-producing Fagaceae species (assume ...
DOI:
10.1093/jmammal/gyy063

19. Draft genome sequence of Japanese wood mouse, Apodemus speciosus

Author:
Masatoshi Matsunami; Daiji Endo; Naruya Saitou; Hitoshi Suzuki; Manabu Onuma
Source:
Data in Brief 2018 v.16 pp. 43-46
ISSN:
2352-3409
Subject:
Apodemus speciosus; Japan; Palearctic region; biotechnology; evolution; geographical distribution; mitochondria; nucleotide sequences; risk reduction; temperate zones; wood
Abstract:
... The wood mouse (genus Apodemus) is one of the most common rodents in broad-leaf forests in the temperate zone of the Palaearctic region. Molecular studies of wood mice have critically enhanced the understanding of their evolution and ancestral biogeographic events. However, their molecular data are currently only limited to partial mitochondrial sequences and a few genes. Therefore, we sequenced t ...
DOI:
10.1016/j.dib.2017.10.063

20. Brachylaima ezohelicis sp. nov. (Trematoda: Brachylaimidae) found from the land snail Ezohelix gainesi, with a note of an unidentified Brachylaima species in Hokkaido, Japan

Author:
Minoru Nakao; Tsukasa Waki; Mizuki Sasaki; Jason L. Anders; Daisuke Koga; Mitsuhiko Asakawa
Source:
Parasitology international 2017 v.66 no.3 pp. 240-249
ISSN:
1383-5769
Subject:
Apodemus speciosus; Brachylaima; Myodes; adults; biogeography; cercariae; definitive hosts; forests; genetic variation; haplotypes; ileum; intermediate hosts; kidneys; metacercariae; methylprednisolone; mice; mitochondrial DNA; new species; nucleotide sequences; parasites; snails; surveys; trematode infections; voles; Japan
Abstract:
... In the Japanese Archipelago, Ezohelix gainesi, a member of bradybaenid land snails, is endemic mainly to the island of Hokkaido. During July to August of 2016, a survey to detect trematode infections from E. gainesi was carried out at a forest city park in Asahikawa, Hokkaido. Systemic infections of the snails with sporocysts containing short-tailed cercariae were found in 5.3% of 94 individuals e ...
DOI:
10.1016/j.parint.2017.01.015