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You searched for: Journal name Mammal study Remove constraint Journal name: Mammal study Subject Apodemus speciosus Remove constraint Subject: Apodemus speciosus Text availability Citation in PubAg Remove constraint Text availability: Citation in PubAg
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1. Morphological Variation in External Traits of the Large Japanese Field Mouse, Apodemus speciosus

Author:
Shintaku Yuta; Kageyama Mariko; Motokawa Masaharu
Source:
Mammal study 2012 v.37 no.2 pp. 113-126
ISSN:
1343-4152
Subject:
Apodemus speciosus; alleles; body length; feet; habitat preferences; head; islands; mice; tail; Japan
Abstract:
... We analyzed morphological variation in external traits of Apodemus speciosus using 1,799 individuals collected throughout its entire distribution range. Clear geographic patterns were not observed in head and body length. Tail length was greater in the Hokkaido and Tokara-Nakanoshima populations and smaller in the Oki Islands populations. Ear length showed geographic trends within the Honshu popul ...
DOI:
10.3106/041.037.0202

2. Seasonal Habitat Partitioning between Sympatric Terrestrial and Semi-Arboreal Japanese Wood Mice, Apodemus speciosus and A. argenteus in Spatially Heterogeneous Environment

Author:
Sakamoto Shinsuke H.; Suzuki Satoshi N.; Degawa Yousuke; Koshimoto Chihiro; Suzuki Ryo O.
Source:
Mammal study 2012 v.37 no.4 pp. 261-272
ISSN:
1343-4152
Subject:
Apodemus speciosus; Pinus; autumn; bamboos; coniferous forests; grasslands; ground vegetation; habitat preferences; habitats; mixed forests; rodents; seasonal variation; spring; summer; temperate forests; understory
Abstract:
... Habitat partitioning can maintain the coexistence of species with very similar ecological traits. We studied habitat partitioning between terrestrial and semi-arboreal congeneric rodents (Apodemus speciosus and A. argenteus) that often coexist despite asymmetry in their competitive abilities. To understand seasonal and habitat variation in their partitioning, we evaluated seasonal variation in foo ...
DOI:
10.3106/041.037.0401

3. A Few Decades of Habitat Fragmentation has Reduced Population Genetic Diversity: A Case Study of Landscape Genetics of the Large Japanese Field Mouse, Apodemus speciosus

Author:
Sato Jun J.; Kawakami Tsukasa; Tasaka Yurina; Tamenishi Masaya; Yamaguchi Yasunori
Source:
Mammal study 2014 v.1 no.39 pp. 1-10
ISSN:
1343-4152
Subject:
Apodemus speciosus; aerial photography; case studies; forests; gene flow; genetic variation; habitat fragmentation; habitats; haplotypes; landscapes; mice; nucleotide sequences; wildlife
Abstract:
... The effects of a few decades of habitat fragmentation on the population genetic diversity of the large Japanese field mouse, Apodemus speciosus, in the forest region around Fukuyama University was assessed with approximate 300 bp nucleotide sequences of the mitochondrial D-loop region. Two independently isolated internal populations within the campus showed a smaller number of haplotypes and lower ...
DOI:
10.3106/041.039.0102

4. Flexibility of Digestive Tract Morphology in Response to Environmental Conditions in the Large Japanese Field Mouse

Author:
Eto Takeshi; Ozaki Ryousuke; Kato Goro A.; Sakamoto Shinsuke H.; Koshimoto Chihiro; Morita Tetsuo
Source:
Mammal study 2016 v.41 no.2 pp. 71-76
ISSN:
1343-4152
Subject:
Apodemus speciosus; absorption; cecum; cold; cold stress; digestive tract; energy; food quality; mice; photoperiod; small intestine; small mammals; stomach; temperature
Abstract:
... In some small mammals, digestive tract morphology is known to vary between and within individuals over time. Although changes in organs such as the stomach, small intestine, cecum, and large intestine vary among species, there is a trend toward increasing length and mass in individuals faced with increasing energy demands due to cold exposure or to reduced food quality. These morphological changes ...
DOI:
10.3106/041.041.0204

5. Intraspecific Variation in the Frequency of Multiple Paternity in the Japanese Wood Mouse (Apodemus speciosus)

Author:
Hiroko Wakabayashi; Satoshi Noda; Takashi Saitoh
Source:
Mammal study 2017 v.42 no.2 pp. 81-88
ISSN:
1348-6160
Subject:
Apodemus speciosus; females; genotype; interspecific variation; intraspecific variation; males; microsatellite repeats; paternity; progeny
Abstract:
... The magnitude of intraspecific variation in the frequency of multiple paternity, and patterns in its relationship with other variables, was investigated in wild populations of the Japanese wood mouse Apodemus speciosus. The genotypes of 34 females and their offspring were determined on the basis of five microsatellite loci. A high proportion of litters (61.8% = 21/34 litters) were found to have be ...
DOI:
10.3106/041.042.0202

6. 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

7. 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

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. 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