A5051449502- Primate Behavior and Ecology
- Wildlife Ecology and Conservation
- Viral Infections and Vectors
- Avian ecology and behavior
- Animal Behavior and Welfare Studies
- Vector-borne infectious diseases
- Radioactive contamination and transfer
- Bird parasitology and diseases
- Animal Behavior and Reproduction
- Toxic Organic Pollutants Impact
- Genetic and phenotypic traits in livestock
- Environmental Toxicology and Ecotoxicology
- Animal Nutrition and Physiology
- Parasite Biology and Host Interactions
- Radioactivity and Radon Measurements
- Marine animal studies overview
- Crystallization and Solubility Studies
- X-ray Diffraction in Crystallography
- Zoonotic diseases and public health
- Influenza Virus Research Studies
- Yersinia bacterium, plague, ectoparasites research
- Effects and risks of endocrine disrupting chemicals
- Microbial infections and disease research
- Mercury impact and mitigation studies
- Human-Animal Interaction Studies
Nippon Veterinary and Life Science University
2015-2024
Waseda University
2018
Animal Science Research Institute
2002
Yokohama National University
2002
Microplastics (MPs) have been found in a wide range of animal species including humans. The detection MPs human lungs suggests that humans inhale airborne microplastics (AMPs). Although birds respire more efficiently than mammals and are therefore susceptible to air pollution, little is known about their inhalation exposure MPs. In this study, we analyzed samples isolated from the several wild Japan by attenuated total reflection (ATR) imaging method micro-Fourier transform infrared (μFTIR)...
In April 2012 we carried out a 1-year hematological study on population of wild Japanese monkeys inhabiting the forest area Fukushima City. This is located 70 km from Daiichi Nuclear Power Plant (NPP), which released large amount radioactive material into environment following Great East Japan Earthquake 2011. For comparison, examined Shimokita Peninsula in Aomori Prefecture, approximately 400 NPP. Total muscle cesium concentration was range 78–1778 Bq/kg, whereas level below detection limit...
Abstract To evaluate the biological effect of Fukushima Daiichi nuclear disaster, relative differences in growth wild Japanese monkeys ( Macaca fuscata ) were measured before and after disaster 2011 City, which is approximately 70 km from power plant, by performing external measurements on fetuses collected 2008 to 2016. Comparing 31 conceived prior terms body weight head size (product occipital frontal diameter biparietal diameter) crown-rump length ratio revealed that rate proportional...
Summary To estimate the public and animal health risk that alien species pose, prevalence of Salmonella , Yersinia Campylobacter spp. in feral raccoons ( Procyon lotor n = 459) masked palm civets Paguma larvata 153), which are abundant Japan, was investigated urban suburban areas Japan. enterica detected from 29 samples [26 raccoons, 5.7%, 95% confidence interval (CI) 7.8–3.5%; three civets, 2.0%, CI 4.2–0%]. Many isolates belonged to serovars commonly isolated human gastroenteritis patients...
Following the massive earthquake that struck eastern Japan on March 11, 2011, a nuclear reactor core meltdown occurred at Fukushima Daiichi Nuclear Power Plant, operated by Tokyo Electric Company, and was followed release of large amounts radioactive materials. The objective this study to measure concentration radiocesium (134)Cs (137)Cs in muscle Japanese monkeys (Macaca fuscata) inhabiting forest area City determine change over time as well relationship with level soil contamination....
A symbiotic bacterium of the macaque louse, Pedicinus obtusus, was characterized. The symbiont constituted a gammaproteobacterial lineage distinct from symbionts anthropoid primate lice, localized in midgut epithelium and ovaries exhibiting AT-biased genes accelerated molecular evolution. designation "Candidatus Puchtella pedicinophila" proposed for it.
Abstract Aim Understanding patterns and processes of geographic genetic variation within among closely related species is the essence phylogeography. Japanese macaques, also called snow monkeys, have been extensively studied, particularly in fields sociobiology, ecology experimental biology; however, our knowledge their evolutionary history relatively limited. In this study we aimed to elucidate macaques that underlie them. Location Japan. Taxa macaque, Macaca fuscata ; rhesus M. mulatta...
The Japanese serow (Capricornis crispus) and sika deer (Cervus nippon) in Japan are usually allopatric. However, a recent expansion the distribution range of deer, combined with an increase abundance, has resulted overlap ranges two species. We examined habitat selection activity patterns serows using camera traps placed at 83 sites within 210 km2 study area, where these species recently overlapped. Although both were photographed throughout we observed low spatial between them. selected...
ESR Endangered Species Research Contact the journal Facebook Twitter RSS Mailing List Subscribe to our mailing list via Mailchimp HomeLatest VolumeAbout JournalEditorsSpecials 24:61-72 (2014) - DOI: https://doi.org/10.3354/esr00553 Population trends of Kuril harbour seal Phoca vitulina stejnegeri from 1974 2010 in southeastern Hokkaido, Japan Yumi Kobayashi1,*, Tatsuya Kariya2, Jun Chishima2, Kei Fujii2, Kazuo Wada3, Shinya Baba1, Tetsuro Itoo4,†, Toshiyasu Nakaoka5, Miki Kawashima2, Sachiko...
Animal-related consequences were not anticipated in disaster preparedness planning Japan at the time of its massive earthquakes 2011. Evacuation failure was quite common due to pet ownership this disaster. Public attention welfare affected animals triggered an awareness importance caring for their needs. However, research on human behavior toward pets or effect during disasters remains sparse. In study, post-traumatic stress disorder (PTSD) scores among pet-owners and non-pet owners Japan's...
Heart rate (HR) and heart variability (HRV) provide noninvasive measures of the relative activity parasympathetic nervous system (PNS), which promotes self-maintenance restoration, sympathetic (SNS), prepares an animal for danger. The PNS decreases HR, whereas SNS increases HR. also contribute to oscillations in heartbeat intervals at different frequencies, producing HRV. HRV resilience adjustment capacity organism intrinsic extrinsic changes. Measuring can reveal condition emotional state...
To examine outbreaks of mange in raccoon dogs (Nyctereutes procyonoides) with respect to population density, we analyzed camera trap videos, and isolated mites from dog carcasses. In a trapping survey, categorized the skin condition dogs, used number independent videos calculate relative abundance index (RAI). The RAI alopecia increased following an increase those without alopecia. Among 27 carcasses, 12 showed mange-compatible lesions. Sarcoptes scabiei was 11 these indicating that...
Since the raccoon (Procyon lotor) was introduced to Japan, studies have established that they are infested with native Japanese tick species. However, quantity of ticks infesting raccoons is unknown. We conducted a survey on invasive captured Miura Peninsula, Kanagawa Prefecture, from April 2015 through June 2016 determine species and quantify intensity infestation in order obtain basal information related ecology host–parasite relationships among indigenous an alien mammalian collected...
To determine how blood values in bottlenose dolphins changed during the year, 504 samples were taken from 9 1991 to 1999 and clinical examinations undertaken monthly including 3 hematological 19 serum chemistry tests. In creatinine, significant seasonal changes found among three groups of adult males, females juveniles, average summer 15-38% higher than those winter. two out total cholesterol value highest winter, lowest all summer. other peaks FFA recorded summer, lows
The effects of introduced mammal species on the ecology parasites are often under investigated. sika deeer, Cervus nippon, is host many hard ticks. We collected 8348 ticks an island where deer were introduced. most representative was Haemaphysalis megaspinosa (n = 4198; 50.3%), followed by H. longicornis 1945; 23.3%), cornigera 1179; 14.1%), flava 713; 8.5%), Ixodes turdus 289; 3.7%), I. granulatus 22; 0.3%), and hystricis 2; <0.1%) have not previously been recorded Izu islands. high...
An abstract is not available for this content so a preview has been provided. As you have access to content, full PDF via the ‘Save PDF’ action button.
The raccoon (Procyon lotor) and masked palm civet (Paguma larvata) are introduced species in Japan have become abundant human-inhabited environments. We surveyed tick infestations ingestion by raccoons civets captured Hayama, Kanagawa Prefecture, between November 2018 January 2020. collected ticks from the body surface of animals capitula gastrointestinal contents. 18,357 identified as Haemaphysalis flava, megaspinosa, longicornis, Ixodes ovatus, tanuki, Amblyomma testudinarium 58 60 152...
Tick distributions have changed rapidly with changes in human activity, land-use patterns, climate, and wildlife over the last few decades.To estimate potential of ticks, we conducted a tick survey at 134 locations western Kanto, Japan. We estimated six species (Amblyomma testudinarium Koch, 1844; Haemaphysalis flava Neumann, 1897; kitaokai Hoogstraal, 1969; longicornis 1901; megaspinosa Saito, Ixodes ovatus 1899) using MaxEnt modeling based on climate five common species: sika deer (Cervus...
Abstract Background The oriental eyeworm Thelazia callipaeda (Spirurida: Thelaziidae) is an emerging parasitic ocular nematode of carnivores and humans. In domestic animals humans, the infection causes varying degrees inflammation lacrimation, wild represent important reservoir. this study we examined status molecular characterization T. in two urban carnivores, raccoons Procyon lotor Japanese raccoon dogs Nyctereutes viverrinus , Kanto region Japan. Methods From January 2020 to December...
This study is the first to determine conception dates of specific individuals and estimate pregnancy rate a wild population in Japanese monkeys. The estimated from embryonic ages 37 fetuses were distributed over 128 days between September 17 January 23, with mean date November 19 (SD=29.2 days). A comparison among age groups showed significantly delayed subadult animals (aged 4 5 years; December 5, n=8) than adult 6 or more 15, n=29; P<0.03). aged years this local was be 48.5% (32/66).