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Current Zoology 1983年第2期29卷 180-184页

作者： Department of Parasitology, Zunyi Medical College, Guizhou 遵义医学院寄生虫学教研室

微丝蚴在外周血液中的出现,不仅有明显的日夜周期性,还有明显的季节周期性,后一现象不仅发生在马来丝虫(陆素筠,1956)或班氏丝虫的患者(Brengues等,1975),也见于有犬恶丝虫或匐形恶丝虫寄生的犬体(Kume和Ohishi,1965;Katamme等,1970;Aok... 详细信息

微丝蚴在外周血液中的出现,不仅有明显的日夜周期性,还有明显的季节周期性,后一现象不仅发生在马来丝虫(陆素筠,1956)或班氏丝虫的患者(Brengues等,1975),也见于有犬恶丝虫或匐形恶丝虫寄生的犬体(Kume和Ohishi,1965;Katamme等,1970;Aoki,1971;Cancrml,1975a、b;Sawyer,1975)。本文报道实验感染周期型马来丝虫的长爪沙鼠体内微丝蚴的季节周期性。

关键词： Meriones unguiculatus Brugia malayi Periodicity Microfilariae Rhythm

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Restricted dispersal determines fine-scale spatial genetic structure of Mongolian gerbils

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Current Zoology 2017年第6期63卷 687-691页

作者： Guiming WANG Wei LIU Yanni WANG Xinrong WAN Wenqin ZHONG Department of Wildlife Fisheries and Aquaculture Mississippi State University Mail Stop 9690 Mississippi State MS 39762 USA Institute of Zoology Chinese Academy of Sciences State Key Laboratory of Integrated Management of Pest Insects and Rodents 1 Beichen West Road Chaoyang District Beijing 100101 China University of Chinese Academy of Sciences Beijing 100190 China College of Chemistry and Life Sciences Zhejiang Normal University 688 Yingbin Road Jinhua Zhejiang 321004 China

Restricted gene flow may cause positive spatial genetic autocorrelation of animal populations at fine spatial scales. The Mongolian gerbil is a territorial, social rodent. Territoriality may create social fences to restrict dispersal or gene flow of Mongolian gerbils to a short distance. Restricted dispersal may differentiate fine-scale spatial genetic structure of populations with increasing distances (i.e., isolation by distance [IBD]). Competition for mates and inbreeding avoidance may result in equal dispersal propensity and subsequently similar spatial genetic autocorrelation between males and females of monogamous gerbils. We genotyped 327 gerbils, live captured from 26 burrow systems on a 9-ha plot in northcentral Inner Mongolia, China, using seven microsatellite loci. Spatial genetic autocorrelation was positive within 80 m and became negative from 80 m to 200 m, suggesting restricted gene flow. Inter-group genetic and geographic distances were related positively, supporting the IBD model. Live trapping data demonstrated equal dispersal propensities of male and female gerbils. Restricted dispersal and social organization may determine fine-scale spatial population genetic structure of social rodents.

关键词： Meriones unguiculatus dispersal isolation by distance microsatellite analysis social rodents spatial genetic autocorrelation

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Inter-group associations in Mongolian gerbils:Quantitative evidence from social network analysis

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Integrative Zoology 2017年第6期12卷 446-456页

作者： Ke DENG Wei LIU Dehua WANG State Key Laboratory of Integrated Management of Pest Insects and Rodents Institute of ZoologyChinese Academy of SciencesBeijingChina and University of Chinese Academy of SciencesBeijingChina

Animals often interact non-randomly with conspecifics,and association preferences can differ across life-history stages to maximize individuals’fitness.Mongolian gerbils(Meriones unguiculatus)are a social rodent that live in highly seasonal habitats and display seasonal fluctuations in population density,growth rate and the size of overlapped home ranges.Nevertheless,whether gerbils modify their social relationships at different life-history stages remains unknown.Here,we used social network analysis to examine whether social associations differ between the sexes and between life-history stages in a wild population of Mongolian gerbils.We quantified social attributes at both group level(assortativity)and individual level(social differentiation and degree,closeness and betweenness centrality);these attributes reflect individuals’social preferences and their potential influence on others in the network.We found that both male and female gerbils established fewer inter-group social connections during the food-hoarding season than during the breeding season,revealing constraints on sociality.Similarly,during the food-hoarding season,degree centrality and social differentiation increased significantly whereas closeness and betweenness centrality decreased significantly.Together,these results suggest that gerbils have relatively more partners and preferred associations and decreased influence over others in the network during the food-hoarding season.In addition,we found no significant difference in any of the social attribute between males and females,but there was a significant interaction effect between sex and season on degree,closeness and betweenness centrality.Our results demonstrate that Mongolian gerbils adjust their association strategies to adapt to the changes of life history.Such adjustments may balance the costs/benefits associated with survival and reproduction.

关键词： centrality inter-group associations life history Meriones unguiculatus social network analysis

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周期型马来丝虫微丝蚴寿命的观察

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Current Zoology 1984年第1期30卷 63-66页

作者： DEPARTMENT OF PAEASITOLOGT, ZUNYI MEDICAL COLLEGE, GUIZHOU 遵义医学院寄生虫学教研室

将实验感染周期型马来丝虫的长爪沙鼠的微丝蚴蚴阳性腹腔稀释液,移注于正常沙鼠腹腔内,微丝蚴除能在腹腔内长期生存外,还可出现于外周血液中,其在外周血液内末次阳性检出时间最长可超过32周,在腹腔液内末次阳性检出时间最长为77周,故马... 详细信息

将实验感染周期型马来丝虫的长爪沙鼠的微丝蚴蚴阳性腹腔稀释液,移注于正常沙鼠腹腔内,微丝蚴除能在腹腔内长期生存外,还可出现于外周血液中,其在外周血液内末次阳性检出时间最长可超过32周,在腹腔液内末次阳性检出时间最长为77周,故马来微丝蚴在沙鼠外周血液中的最长寿命不短于7.5月,而在腹腔液内的最长寿命可超过1.5年以上。

关键词： Meriones unguiculatus Brugia malayi Microfilaria Longevity Physiology.

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