Mammal Study最新文献_第7页

Are there Sexual Differences in the Autumn Food Habits of Raccoon Dogs (Nyctereutes procyonoides) in Suburban Area? 郊区貉秋季食物习性是否存在性别差异？

IF 1 4区生物学

Mammal Study Pub Date : 2021-11-10 DOI: 10.3106/ms2020-0079

Ayaka Hasegawa, Y. Goto, K. Yamazaki

引用次数: 0

Factors Influencing Habitat-Use of Indian Grey Wolf in the Semiarid Landscape of Western India 印度西部半干旱地区影响印度灰狼栖息地利用的因素

IF 1 4区生物学

Mammal Study Pub Date : 2021-11-10 DOI: 10.3106/ms2021-0029

P. Mahajan, D. Khandal, Kapil Chandrawal

{"title":"Factors Influencing Habitat-Use of Indian Grey Wolf in the Semiarid Landscape of Western India","authors":"P. Mahajan, D. Khandal, Kapil Chandrawal","doi":"10.3106/ms2021-0029","DOIUrl":"https://doi.org/10.3106/ms2021-0029","url":null,"abstract":"Abstract. Wolves play a crucial role in shaping ecological communities as an apex predator in the dry-open forests of semi-arid landscapes in India. Large scale habitat loss pertaining to human expansion and retaliatory killing by human caused severe decline in the wolf population across its range. The estimated wolf population size is close to 2000–3000 individuals in India; however, these estimates were decades old and the present status of the wolf in the semi-arid landscape is largely unknown. We assessed the distribution of wolves in Kailadevi Wildlife Sanctuary, Rajasthan using occupancy models and identified important factors associated with habitat-use by wolves. Occupancy modelling shifts the focus from individual animal to a site, while accounting for detection probability. To assess the habitat-use we used sign-based surveys that rely on data collected from adjacent sampling sites (replicates). The habitat-use was assessed across 672.82 km2 surveying 48 grid cells, each measuring 14.44 km2. Estimated habitat-use Ѱ (SD) was found to be 0.82 (0.14). Our findings suggested that availability of agriculture land had the significant positive influence on the habitat-use of wolves. Other factors such as availability of water, scrubland, and wild prey (nilgai and chinkara) also had a positive effect on the habitat use of wolves, but it was not significant. Forest cover has a negative influence on the habitat use of wolves. This study is the first rigorous assessment of the Indian grey wolf habitat-use at the level of wildlife reserve with potential conservation value that can be applied to other areas in India.","PeriodicalId":49891,"journal":{"name":"Mammal Study","volume":"47 1","pages":"23 - 37"},"PeriodicalIF":1.0,"publicationDate":"2021-11-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"49226461","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 2

Dietary Protein Deficiency Affects Food Consumption and Torpor in the African Woodland Dormouse (Graphiurus murinus) 膳食蛋白质缺乏对非洲林地睡鼠（Graphiurus murinus）食物消耗和Torpor的影响

IF 1 4区生物学

Mammal Study Pub Date : 2021-10-11 DOI: 10.3106/ms2020-0102

Takeshi Eto, Sayako Hidaka, Hiroki Shichijo, Goro A. Nagura-Kato, Tetsuo Morita

{"title":"Dietary Protein Deficiency Affects Food Consumption and Torpor in the African Woodland Dormouse (Graphiurus murinus)","authors":"Takeshi Eto, Sayako Hidaka, Hiroki Shichijo, Goro A. Nagura-Kato, Tetsuo Morita","doi":"10.3106/ms2020-0102","DOIUrl":"https://doi.org/10.3106/ms2020-0102","url":null,"abstract":"Abstract. Many heterotherms employ torpor to conserve energy to cope with food shortage. Food shortage affects not only energy budgets but also other aspects of nutritional status. In addition to serving as an energy substrate, dietary proteins also provide vital nutrients including essential amino acids, some of which cannot be synthesized de novo. We evaluated the hypothesis that dietary protein deficiency induces torpor as a means of adjusting protein metabolism in the African woodland dormouse (Graphiurus murinus), a rodent with a protein-rich diet and lacking a cecum, which limits the potential for hindgut fermentation and coprophagy. Dormice were fed control and non-protein diets with equivalent energy content every two weeks under thermoneutral conditions. While the dormice did not express torpor under control conditions, some did under protein-deficient conditions. Among dormice expressing torpor, one maintained energy intake comparable to that during the control diet period, whereas the other reduced energy intake due to spontaneously reduced food consumption. These results suggest that torpor can be induced directly or indirectly by dietary protein deficiency even in the absence of energy constraints and thermal stress. In either case, torpor in response to deficiency in certain nutrients can reduce demands of the nutrient.","PeriodicalId":49891,"journal":{"name":"Mammal Study","volume":"939 ","pages":"13 - 21"},"PeriodicalIF":1.0,"publicationDate":"2021-10-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"41271682","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

New Mitogenome of the Hainan Mole Mogera hainana and Taxonomic Implications Based on Molecular Data 海南鼹鼠新的线粒体基因组及其分子生物学意义

IF 1 4区生物学

Mammal Study Pub Date : 2021-09-16 DOI: 10.3106/ms2021-0008

F. Tu, Xiaofei Zhai, Wenjing Zhao, Jichao Wang

引用次数: 0

The Hole Size that the Japanese Marten (Martes melampus) can Pass through 日本貂(Martes melampus)可以通过的洞大小

IF 1 4区生物学

Mammal Study Pub Date : 2021-09-16 DOI: 10.3106/ms2021-0010

Hironori Ueda, S. Doyama, Y. Eguchi

引用次数: 0

Are Northeastern Forests of Bangladesh Empty? Insights from Camera-Trapping into Spatiotemporal Activity Pattern of Mammals in a Semi-Evergreen National Park 孟加拉国东北部的森林是空的吗？从相机捕捉到半常绿国家公园哺乳动物的时空活动模式

IF 1 4区生物学

Mammal Study Pub Date : 2021-09-09 DOI: 10.3106/ms2020-0114

Tania Zakir, Harish Debbarma, Rafia Mahjabin, Rasel Debbarma, Zaber Khan, Md. Mizanur Rahman Minu, F. Zahura, M. Akash

{"title":"Are Northeastern Forests of Bangladesh Empty? Insights from Camera-Trapping into Spatiotemporal Activity Pattern of Mammals in a Semi-Evergreen National Park","authors":"Tania Zakir, Harish Debbarma, Rafia Mahjabin, Rasel Debbarma, Zaber Khan, Md. Mizanur Rahman Minu, F. Zahura, M. Akash","doi":"10.3106/ms2020-0114","DOIUrl":"https://doi.org/10.3106/ms2020-0114","url":null,"abstract":"Abstract. Bangladesh holds 191 km2 semi-evergreen northeastern (NE) forests where systematic camera-trapping has never been carried out. An effort of 587 trap nights in Satchari National Park, a NE forest, revealed ten carnivores, two ungulates, two primates, two rodents, and one treeshrew (12 threatened in Bangladesh; of which three globally threatened; dhole and northern treeshrew were new discoveries). Pairwise circadian homogeneity, coefficient of temporal overlap ( ), and spatial cooccurrence pattern were measured. High values ( > 0.75) were noted in 36 pairwise comparisons, and positive spatial association (Pgt < 0.05) in five. Anthropogenic activities overlapped with diurnal species (0.65 ≤ 1 ≤ 0.88) but stood dissimilar (P < 0.05 in the Mardia-Watson-Wheeler test) except for yellow-throated marten–livestock movement (1 = 0.70). Although species-specific dietary or temporal preference explains the observed associations, low detection of the jungle cat (2) compared to the leopard cat (56), absence of the fishing cat, homogenous activity (P > 0.05) in yellow-throated marten–crab-eating mongoose (1 = 0.83) and rhesus macaque–pig-tailed macaque (4 = 0.93) pairs need further research. These insights are remarkable as NE forests, the western cusp of the Indo-Burma biodiversity hotspot, are contrarily deemed ‘empty’, receiving least scientific investments.","PeriodicalId":49891,"journal":{"name":"Mammal Study","volume":"46 1","pages":"1 - 17"},"PeriodicalIF":1.0,"publicationDate":"2021-09-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"47728738","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 2

Morphological and Molecular Recharacterization of the Rodent Genus Mus from Nepal Based on Museum Specimens 基于博物馆标本的尼泊尔鼠类鼠属的形态和分子重新表征

IF 1 4区生物学

Mammal Study Pub Date : 2021-08-26 DOI: 10.3106/ms2020-0065

M. Kishimoto, Masaru Kato, Hitoshi Suzuki

{"title":"Morphological and Molecular Recharacterization of the Rodent Genus Mus from Nepal Based on Museum Specimens","authors":"M. Kishimoto, Masaru Kato, Hitoshi Suzuki","doi":"10.3106/ms2020-0065","DOIUrl":"https://doi.org/10.3106/ms2020-0065","url":null,"abstract":"Abstract. The taxonomy and phylogeny of the subgenus Mus, the Eurasian lineage of the genus Mus, remain unresolved, even for the house mouse (Mus musculus). While the subgenus is diverse in Asia, few studies cover both its morphology and molecular phylogeny. We re-examined 70 specimens identified as M. cervicolor that were collected from central Nepal in 1968 and 1975 and are currently deposited in the Hokkaido University Natural History Museum. To compare morphological features, we examined skull geometric morphometrics and body coloration, and performed a phylogenetic analysis of the mitochondrial cytochrome b gene sequences of representative specimens. The specimens were most likely either M. booduga or M. musculus. The best morphological characteristics for distinguishing the two species were the nasal length ratio, which was high and low, respectively. Mus booduga was found to inhabit altitudes lower than 1000 m and have light ventral fur, while M. musculus inhabited various altitudes up to 3000 m and had variable fur color depending on the altitude. We also discuss the taxonomic status of the fawn-colored mouse M. cervicolor.","PeriodicalId":49891,"journal":{"name":"Mammal Study","volume":"46 1","pages":"1 - 12"},"PeriodicalIF":1.0,"publicationDate":"2021-08-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"45661256","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 1

New Humpback Whale Remains from the Holocene (Quaternary) of Osaka, Japan 日本大阪全新世(第四纪)的新座头鲸遗骸

IF 1 4区生物学

Mammal Study Pub Date : 2021-08-26 DOI: 10.3106/ms2021-0007

Yoshihiro Tanaka, H. Taruno

引用次数: 0

New Dental Anomalies in the Greater Japanese Shrew Mole Urotrichus talpoides (Eulipotyphla: Talpidae) 大日本Shrew Mole Urotrichus talpoides（真脂斑疹伤寒：Talpidae）牙齿新异常

IF 1 4区生物学

Mammal Study Pub Date : 2021-08-26 DOI: 10.3106/ms2020-0095

S. Okabe, A. Shinohara, M. Motokawa

{"title":"New Dental Anomalies in the Greater Japanese Shrew Mole Urotrichus talpoides (Eulipotyphla: Talpidae)","authors":"S. Okabe, A. Shinohara, M. Motokawa","doi":"10.3106/ms2020-0095","DOIUrl":"https://doi.org/10.3106/ms2020-0095","url":null,"abstract":"Abstract. Dental anomalies in the greater Japanese shrew mole Urotrichus talpoides Temminck, 1841 (Eulipotyphla: Talpidae) were examined, based on 1001 specimens. We followed the dental formula of U. talpoides I 2/1, C 1/1, P 4/3, M 3/3 = 36, which is adopted by the most recent Japanese researchers, and found dental anomalies in 17 specimens involving 12 instances of absent tooth, four of extra tooth, and one of connate tooth. Of these, the following dental anomalies are reported in U. talpoides for the first time: extra tooth posterior to the upper canine (C1), extra tooth posterior to the upper second premolar (P2), extra teeth on the inner sides of the upper fourth premolars (P4), and connate tooth on the lower canine (C1). The most frequently observed dental anomaly was the absent tooth on C1 (52.9%), whereas the others were not common (< 11.8%). Our results indicate that dental anomalies in U. talpoides in Urotrichini possess the different pattern from those in species in Scalopini and Talpini. On the other hand, alternative hypothesis of dental formula I 3/2, C 1/1, P 3/2, M 3/3 = 36 explains the observed anomaly pattern in line with the general trend of dental anomalies in Talpini and Scalopini.","PeriodicalId":49891,"journal":{"name":"Mammal Study","volume":"46 1","pages":"1 - 7"},"PeriodicalIF":1.0,"publicationDate":"2021-08-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"42764482","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Factors Affecting Pre-Denning Activity in Asian Black Bears 影响亚洲黑熊冬眠前活动的因素

IF 1 4区生物学

Mammal Study Pub Date : 2021-08-26 DOI: 10.3106/ms2020-0101

S. Baek, T. Iwasaki, K. Yamazaki, T. Naganuma, A. Inagaki, K. Tochigi, M. L. Allen, Chinatsu Kozakai, S. Koike

引用次数: 1