基本情報
- 所属
- 日本獣医生命科学大学 獣医学部獣医保健看護学科 講師
- 学位
- 博士(農学)(岩手大学大学院連合農学研究科)
- J-GLOBAL ID
- 201801011090225030
- researchmap会員ID
- B000292303
研究分野
4経歴
3-
2021年7月 - 現在
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2018年4月 - 2021年6月
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2016年4月 - 2018年3月
学歴
2-
2013年4月 - 2016年3月
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2007年4月 - 2013年3月
委員歴
6-
2019年4月 - 現在
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2019年4月 - 現在
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2018年 - 現在
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2018年 - 2023年12月
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2013年 - 2020年4月
受賞
3論文
32-
Journal of Zoology 2024年8月30日 査読有り筆頭著者責任著者Abstract Hair hormone analysis has received increasing attention in the fields of wildlife management and conservation over the last decade. However, few studies focused on sex steroid hormones, even though hair sex steroid hormone analysis has the potential to provide information on an individual's reproductive health, leading to a better understanding of animal reproductive biology and the assessment of individual and population health. Here, we tested the assay validation and examined whether hair progesterone concentration (HPC) differs between different sexes and age classes in the Asian black bear, Ursus thibetanus. We also investigated the effects of reproductive condition, age, and body condition index (BCI) on HPC to determine the utility of hair progesterone analysis in bears. The assay validation was reported in our study. We found a significantly higher HPC in adult females than in juvenile females and juvenile and adult males. In addition, we found no effects of age and BCI on HPC but a significant positive effect of reproductive condition, as the HPC in breeding adult females was significantly higher than in nonbreeding adult females. These results suggest that hair progesterone analysis has the potential to evaluate the reproductive condition of Asian black bears.
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Conservation Genetics 2024年8月13日 査読有りAbstract Human activities often induce maladaptive effects in urban wildlife, such as increased inbreeding and decreased gene flow, consequently leading to a loss of biodiversity. Although maladaptive effects are commonly reported in urban wildlife, some wildlife species are not affected. Understanding the conditions and factors that affect the genetic structure of wildlife is crucial for its conservation in urban environments. Eurasian red squirrels Sciurus vulgaris in Obihiro City, Hokkaido, Japan, have settled in large residential lots with a high risk of vehicle collisions for approximately 30 years, raising the possibility that the urban population would be genetically isolated from nearby rural populations and may experience a rapid decrease in genetic diversity. In this study, we analysed the population structure, genetic distance, and nucleotide diversity of squirrels in the Obihiro area using genome-wide single nucleotide polymorphisms (SNPs). Principal component analysis and ADMIXTURE showed that urban and rural squirrel populations formed distinct clusters with intermediate urban and rural boundary populations. Genetic distances between the urban populations were greater than that of other pairs. Nucleotide diversities were lower in urban populations than in other populations, suggesting limited gene flow between urban and other populations, possibly due to urbanisation. The change in the genetic characteristics of urban squirrel populations during this short period demonstrates the strong impact of urbanisation. Our findings suggest that a genome-wide approach to the genetic structure of wildlife contributes to its conservation in urban environments.
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Rapid Communications in Mass Spectrometry 2024年 査読有り責任著者
MISC
11書籍等出版物
3講演・口頭発表等
45-
International Society of Wildlife Endocrinology 8th Conference 2023年10月
担当経験のある科目(授業)
10-
2022年4月 - 現在生物試料解析実習 (日本獣医生命科学大学)
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2021年 - 現在動物生態学特論 (日本獣医生命科学大学)
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2018年4月 - 現在獣医保健看護学概論 (日本獣医生命科学大学)
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2018年4月 - 現在獣医保健看護体験実習 (日本獣医生命科学大学)
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2018年4月 - 現在野生動物学実習 (日本獣医生命科学大学)
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2018年4月 - 現在野生動物学 (日本獣医生命科学大学)
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2018年 - 2022年動物生態調査実習b (日本獣医生命科学大学)
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2018年 - 2021年水生生物学実習 (日本獣医生命科学大学)
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2018年 - 2021年動物生態調査実習a (日本獣医生命科学大学)
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2018年 - 2020年野鳥保護活動実習 (日本獣医生命科学大学)
共同研究・競争的資金等の研究課題
2-
日本学術振興会 科学研究費助成事業 基盤研究(B) 2021年4月 - 2026年3月
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日本学術振興会 科学研究費助成事業 基盤研究(C) 2021年4月 - 2025年3月
学術貢献活動
1メディア報道
3その他
5-
General and Comparative Endocrinology, Basic and Applied Ecology, Urban Ecosystems, Journal of Ethology, Mammal Study, 日本野生動物医学会誌、哺乳類科学