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1. Seasonal development of Leptotrombidium pallidum (Acari: Trombiculidae) observed by experimental rearing in the natural environment

Author:
Takahashi, M.; Machida, K.; Murata, M.; Misumi, H.; Hori, E.; Kawamura, A. Jr.; Tanaka, H.
Source:
Journal of medical entomology 1993 v.30 no.2 pp. 320-325
ISSN:
0022-2585
Subject:
disease vectors; medical entomology; seasonal development; Orientia tsutsugamushi; rodents; Apodemus speciosus; rearing; Japan
Abstract:
... Engorged larvae of Leptotrombidium pallidum Nagayo, Miyagawa, Mitamura & Tamiya, the vector mite of scrub typhus in Japan, were reared by feeding them with fresh eggs of the collembolan Sinella curviseta Brook while confined in small plastic containers under natural conditions in a copse. The larvae were collected from wild rodents (Apodemus speciosus) in autumn 1985 and spring 1986. Adults were k ...
DOI:
10.1093/jmedent/30.2.320
PubMed:
8459408

2. Acorn Hoarding by the Field Mouse, Apodemus speciosus Temminck (Rodentia: Muridae)

Author:
Koichi Soné; Aki Kohno
Source:
Journal of forest research 1999 v.4 no.2 pp. 167-175
ISSN:
1610-7403
Subject:
Apodemus speciosus; acorns; forests; gardens; germination; home range; mice; radio telemetry; research; soil; vegetation structure
Abstract:
... We studied population changes of the field mouse,Apodemus speciosus Temminck, by live trapping in a mixed stand of cypress and broad-leaved trees at Tama Forest Science Garden during the period from October 1991 to March 1994. We also used radiotelemetry to investigate acorn hoarding. The number of mice captured in 1992 was three to ten times higher than that in either 1991 or 1993. The home range ...
DOI:
10.1007/BF02762243

3. Effects of rodent gnawing on the survival of current-year seedlings of Quercus crispula

Author:
Toshihiko Sato
Source:
Ecological research 2000 v.15 no.3 pp. 335-344
ISSN:
0912-3814
Subject:
Apodemus speciosus; Quercus mongolica; Sasa; bamboos; crop year; forest litter; forests; fruits; growing season; mortality; predation; rodents; seedlings; stems; Japan
Abstract:
... Emergence, survival and mortality patterns of current-year oak (Quercus crispula Blume) seedlings were investigated for 4 consecutive years in a secondary oak forest in Hokkaido, northern Japan. Despite the emergence of a considerable number of oak seedlings in the years following masting, few current-year seedlings survived until the end of the growing season. Almost all of the seedlings died fro ...
DOI:
10.1046/j.1440-1703.2000.00352.x

4. Walnut Hoarding by the Japanese Wood Mouse, Apodemus speciosus Temminck

Author:
Noriko Tamura
Source:
Journal of forest research 2001 v.6 no.3 pp. 187-190
ISSN:
1610-7403
Subject:
Apodemus speciosus; Japan; Juglans ailantifolia; Sciurus; forests; radio transmitters; research; seed dispersal; squirrels; walnuts; wood
Abstract:
... Walnuts, Juglans ailantifolia Carriere, are large and the shell is difficult to open. Thus, seed predators in Japan are restricted mainly to the Japanese squirrel (Sciurus lis Temminck) and the wood mouse (Apodemus speciosus Temminck), which can shave away the hard shells with their sharp incisors. Previous work indicated that the squirrels are not only predators, but also disperse walnuts. In thi ...
DOI:
10.1007/BF02767091

5. Changes in Foraging Behavior of Two Species of Field Mice, Apodemus speciosus Temminck and A. argenteus Temminck (Rodentia: Muridae), in the Response to Artificial Illumination

Author:
Koichi Sone
Source:
Journal of forest research 2002 v.7 no.1 pp. 17-21
ISSN:
1610-7403
Subject:
Apodemus speciosus; Japan; forests; light intensity; lighting; mice; nest boxes; predation; research
Abstract:
... Predation hazard is one of the most important factors that affect foraging behavior. Light intensity is an indirect measure of a predation hazard for nocturnal rodents. In 1988 and 1989, I conducted laboratory experiments to reveal the effects of the predation hazard on foraging behavior of two species of field mice, Apodemus speciosus Temminck and A. argenteus Temminck (Rodentia: Muridae), which ...
DOI:
10.1007/BF02762594

6. Hoarding of acorns by granivorous mice and its role in the population processes of Pasania edulis (Makino) Makino

Author:
Koichi Sone; Sachiko Hiroi; Daisuke Nagahama; Chiharu Ohkubo; Eiji Nakano; Shun-ichi Murao; Kunihiko Hata
Source:
Ecological research 2002 v.17 no.5 pp. 553-564
ISSN:
0912-3814
Subject:
Apodemus argenteus; Apodemus speciosus; Lithocarpus; broadleaved evergreens; coppicing; crops; deciduous forests; fruits; germination; herbivores; mice; population dynamics; predators; seed predation; seedlings; shoots; soil; trees; Japan
Abstract:
... In order to evaluate the role of granivorous mice, Apodemus speciosus Temminck and Apodemus argenteus Temminck, in the regeneration of Pasania edulis (Makino) Makino, an evergreen tree, we conducted field studies examining acorn crops, the population dynamics and hoarding behavior of mice and pre- and postdispersal acorn predation in an evergreen broad-leaved forest dominated by P. edulis in Kagos ...
DOI:
10.1046/j.1440-1703.2002.00514.x

7. Impact of site-induced mouse caching and transport behaviour on regeneration in Castanea crenata

Author:
Seiwa K.; Watanabe A.; Irie K.; Kanno H.; Saitoh T.; Akasaka S.
Source:
Journal of vegetation science 2002 v.13 no.4 pp. 517-526
ISSN:
1100-9233
Subject:
Apodemus speciosus; Castanea crenata; canopy gaps; dispersal behavior; edge effects; energy; foraging; forests; habitats; landscapes; mice; nuts; seed dispersal; seedlings; spring; trees; understory
Abstract:
... Dispersal and retrieval site selection by mice, transport distance, cache depth, and emergence and survival of seedlings of Castanea crenata (Japanese chestnut) were investigated by a magnet-locating experiment in two habitat conditions (gap vs. forest understorey). Magnets were inserted into nuts (n == 450) and the nuts placed in the edge of forest gaps. Although wood mice (Apodemus speciosus and ...
DOI:
10.1658/1100-9233(2002)013[0517:IOSIMC]2.0.CO;2

8. Molecular phylogeny of wood mice (Apodemus, Muridae) in East Asia

Author:
Hitoshi Suzuki; Jun J. Sato; Kimiyuki Tsuchiya; Jing Luo; Ya-Ping Zhang; Ying-Xiang Wang; Xue-Long Jiang
Source:
Biological journal of the Linnean Society 2003 v.80 no.3 pp. 469-481
ISSN:
0024-4066
Subject:
Apodemus agrarius; Apodemus argenteus; Apodemus speciosus; cytochrome b; ecological differentiation; genes; geography; mitochondria; mitochondrial genome; phylogeny; China; Japan; Taiwan
Abstract:
... Sequences of the mitochondrial cytochrome b (1140 bp) and nuclear IRBP (1152 bp) genes were used to assess the evolutionary history of Apodemus, using the complete set of Asian species. Our results indicate that speciation in Asia involved three radiations, which supports an earlier study. The initial radiation yielded A. argenteus (Japanese endemic), A. gurkha (Nepalese endemic), and the ancestra ...
DOI:
10.1046/j.1095-8312.2003.00253.x

9. Climatic change and body size in two species of Japanese rodents

Author:
Yoram Yom-Tov; Shlomith Yom-Tov
Source:
Biological journal of the Linnean Society 2004 v.82 no.2 pp. 263-267
ISSN:
0024-4066
Subject:
Apodemus speciosus; Eothenomys; body size; climate change; diet; energy conservation; food availability; mice; skull; teeth; temperature; temporal variation; voles
Abstract:
... Using museum specimens, we studied temporal changes in skull size in two species of Japanese rodents, the large Japanese field mouse (Apodemus speciosus) and Pratt's vole (Eothenomys smithii= E. kageus) during the 20th century. We used the greatest length of the skull (GTL), zygomatic breadth (ZB), narrowest width of the skull across the interorbital region (IC) and the length of the upper cheek t ...
DOI:
10.1111/j.1095-8312.2004.00357.x

10. A novel genotype of Cryptosporidium muris from large Japanese field mice, Apodemus speciosus

Author:
Kenji Hikosaka; Yutaka Nakai
Source:
Parasitology research 2005 v.97 no.5 pp. 373-379
ISSN:
0932-0113
Subject:
Apodemus speciosus; Cryptosporidium muris; DNA; epithelium; genes; genotype; mice; nucleotide sequences; oocysts; oral administration; pathogenicity; phylogeny; ribosomal RNA; severe combined immunodeficiency; stomach
Abstract:
... Cryptosporidium muris-like oocysts were isolated from large Japanese field mice, Apodemus speciosus. Morphologically, these oocysts resembled those obtained from a C. andersoni Kawatabi isolate but were smaller in size than those from a C.muris isolate. Following oral inoculation of the oocysts into large Japanese field mice and SCID mice, developing stages were found in the stomach epithelium. Th ...
DOI:
10.1007/s00436-005-1459-7

11. Microhabitat use of wood mice ranging from a reserved belt with evergreen broad-leaved trees to a coniferous plantation

Author:
Kaori Sato; Yasumasa Hirata; Atsushi Sakai; Shigeo Kuramoto
Source:
Journal of forest research 2006 v.11 no.4 pp. 275-280
ISSN:
1610-7403
Subject:
Apodemus argenteus; Apodemus speciosus; Castanopsis; Japan; Quercus; analysis of variance; discriminant analysis; forests; microhabitats; research; wood
Abstract:
... Wood mice Apodemus speciosus and Apodemus argenteus are potentially important seed dispersers and predators of Quercus and Castanopsis in Japan. We investigated the existence of two species of wood mice in warm-temperate forests ranging from a reserved belt of evergreen broad-leaved trees to a coniferous plantation, and analyzed the relationship between wood mouse occurrence and environmental fact ...
DOI:
10.1007/s10310-006-0212-0

12. Density-dependent hoarding by rodents contributes to large variation in seed mass of the woodland herb Symplocarpus renifolius

Author:
Uemura, S.; Sugiura, Y.
Source:
Canadian journal of forest research = 2007 v.37 no.9 pp. 1675-1680
ISSN:
0045-5067
Subject:
Symplocarpus; seed dispersal; seed predation; seed germination; seeds; mass; leaf area index; Apodemus speciosus; rodents; density; environmental factors; Japan
Abstract:
... We analyzed effects of seed-hoarding by rodents on the variation in seed mass and seed success for a perennial forest undergrowth plant -- Symplocarpus renifolius Schott ex Miquel -- in Hokkaido, northern Japan. Although density of rodents differed greatly between seasons, more rodents were always captured in mesic Sasa sp. patches with dense foliage than in wet Lysichiton sp. patches. In the seas ...
DOI:
10.1139/X07-058

13. Effects of acorn masting on population dynamics of three forest-dwelling rodent species in Hokkaido, Japan

Author:
Saitoh, Takashi; Osawa, Jun; Takanishi, Toshikazu; Hayakashi, Shintaro; Ohmori, Masaaki; Morita, Toshio; Uemura, Shigeru; Vik, Jon Olav; Stenseth, Nils Chr.; Maekawa, Koji
Source:
Population ecology 2007 v.49 no.3 pp. 249-256
ISSN:
1438-3896
Subject:
Apodemus speciosus; Clethrionomys; Quercus mongolica; bacteria; forests; fruits; herbivores; population dynamics; proteins; rodents; tannins; time series analysis; trapping; Japan
Abstract:
... The effects of the abundance of acorns of the oak, Quercus crispula, on the population dynamics of three rodent species (Apodemus speciosus, A. argenteus, and Clethrionomys rufocanus) were analyzed using time series data (1992-2006). The data were obtained in a forest in northern Hokkaido, Japan, by live trapping rodents and directly counting acorns on the ground. Apodemus speciosus generally incr ...
DOI:
10.1007/s10144-007-0041-9

14. Deer-proof fence prevents regeneration of Picea jezoensis var. hondoensis through seed predation by increased woodmouse populations

Author:
Ei'ichi Shibata; Maiko Saito; Mie Tanaka
Source:
Journal of forest research 2008 v.13 no.2 pp. 89-95
ISSN:
1610-7403
Subject:
Apodemus speciosus; Cervus nippon; Picea jezoensis; Sasa; deer; forage; forest litter; grazing; mice; seed predation; seeds; Japan
Abstract:
... The indirect consequence of sika deer (Cervus nippon) grazing on the regeneration of Picea jezoensis var. hondoensis through its effect on the small rodent population was assessed by evaluating seed predation by mice inside and outside the deer-proof fence on Mt Ohdaigahara, central Japan. Following construction of the deer-proof fence, Sasa nipponica, which covers the forest floor and is the main ...
DOI:
10.1007/s10310-007-0056-2

15. Effects of acorn abundance on density dependence in a Japanese wood mouse (Apodemus speciosus) population

Author:
Saitoh, Takashi; Vik, Jon Olav; Stenseth, Nils Chr.; Takanishi, Toshikazu; Hayakashi, Shintaro; Ishida, Nobuo; Ohmori, Masaaki; Morita, Toshio; Uemura, Shigeru; Kadomatsu, Masahiko; Osawa, Jun; Maekawa, Koji
Source:
Population ecology 2008 v.50 no.2 pp. 159-167
ISSN:
1438-3896
Subject:
Apodemus speciosus; Quercus; forests; fruits; intraspecific competition; models; population growth; rodents; time series analysis; Japan
Abstract:
... We analysed the effects of Quercus crispula acorn abundance on the density dependence of the large Japanese wood mouse Apodemus speciosus using time series data (1992-2007). The data were obtained in a forest in northern Hokkaido, Japan, by live-trapping rodents and directly counting acorns on the ground. Acorn abundance in one year clearly influenced the abundance of wood mice in the following ye ...
DOI:
10.1007/s10144-008-0076-6

16. Geographic variation in walnut seed size correlates with hoarding behaviour of two rodent species

Author:
Tamura, N.; Hayashi, F.
Source:
Ecological research 2008 v.23 no.3 pp. 607-614
ISSN:
0912-3814
Subject:
Apodemus speciosus; Juglans ailantifolia; Sciurus; evolution; geographical variation; germination; islands; mice; prediction; seedlings; seeds; squirrels; trees; walnuts
Abstract:
... Seeds of the Japanese walnut, Juglans ailanthifolia, are usually scatter-hoarded by two rodent species, the Japanese squirrel Sciurus lis and the field mouse Apodemus speciosus, but only by the latter in several areas where S. lis is absent. We examined seed-size-mediated interactions of these three species across a wide geographic range. Field tracking of walnuts with miniature radio-transmitters ...
DOI:
10.1007/s11284-007-0414-8

17. Seed predation and dispersal of glabrous filbert (Corylus Heterophylla) and pilose filbert (Corylus Mandshurica) by small mammals in a temperate forest, northeast China

Author:
Yi, Xianfeng; Zhang, Zhibin
Source:
Plant ecology 2008 v.196 no.1 pp. 135-142
ISSN:
1385-0237
Subject:
Apodemus speciosus; Corylus heterophylla; Tamias; hazelnuts; seed dispersal; seed predation; seeds; shrubs; small mammals; surveys; temperate forests; China
Abstract:
... We investigated the seed dispersal of glabrous filbert (Corylus heterophylla) and pilose filbert (Corylus mandshurica), two large-seeded shrub species in a temperate forest, northeast China, September 2006. Small mammals such as Apodemus speciosus, Clethrlonomys rufocanus, and Eutamias sibiricus, were regarded as the main dispersal agents. More seeds were harvested by small mammals in pilose filbe ...
DOI:
10.1007/s11258-007-9340-7

18. Selective consumption of acorns by the Japanese wood mouse according to tannin content: a behavioral countermeasure against plant secondary metabolites

Author:
Takahashi, Akiko; Shimada, Takuya
Source:
Ecological research 2008 v.23 no.6 pp. 1033-1038
ISSN:
0912-3814
Subject:
Apodemus speciosus; Quercus serrata; byproducts; fruits; mice; proteins; secondary metabolites; tannins
Abstract:
... We examined the presence of selective consumption against tannins in acorns as a pre-ingestive countermeasure to plant secondary metabolites by using the Japanese wood mouse (Apodemus speciosus) and acorns of Quercus serrata, which contained ca. 6.4% tannins on a dry weight basis. In addition, the presence of selective consumption against proteins was also examined. In the acorn-feeding experiment ...
DOI:
10.1007/s11284-008-0473-5

19. Improved walnut-feeding skills with experience in wood mice, Apodemus speciosus

Author:
Takechi, Reina; Tamura, Noriko; Hayashi, Fumio
Source:
Journal of ethology 2009 v.27 no.1 pp. 83-89
ISSN:
0289-0771
Subject:
Apodemus speciosus; Juglans; feeding behavior; habitats; learning; meat; mice; trees; walnuts
Abstract:
... The wood mouse Apodemus speciosus can consume the hard-walled walnut species Juglans ailanthifolia. The mice gnaw holes on two sides of the shell and then pick the meat from the holes. However, not all mice are able to eat these walnuts, because the shells are extremely hard and the process is labour-intensive. To consume all of the meat it is more efficient to eat from holes on the raphe than to ...
DOI:
10.1007/s10164-008-0087-y

20. Secondary dispersal of Dioscorea japonica (Dioscoreaceae) bulbils by rodents

Author:
Inoue Mizuki; Akiko Takahashi
Source:
Journal of forest research 2009 v.14 no.2 pp. 95-100
ISSN:
1610-7403
Subject:
Apodemus speciosus; Dioscorea japonica; canopy; gravity; mice; photographs
Abstract:
... We examined rodent dispersal of Dioscorea japonica bulbils. Bulbils dispersed by rodents may travel farther from their parent plants than those dispersed by gravity alone. To confirm the presence of secondary dispersal and the types of vector, we used an automatic camera to photograph animals that approached bulbils. To clarify secondary dispersal distance, we set marked bulbils at eight sites and ...
DOI:
10.1007/s10310-008-0106-4