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Temperature increase impacts personality traits in aquatic non-native species： Implications for biological invasion under climate change

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Current Zoology 2015年第6期61卷 966-971页

作者： dapeng zhao Peishan FENG Tianjin Key Laboratory of Animal and Plant Resistance College of Life Sciences Tianjin Normal University Tianjin 300387 China

Climate change, such as elevated temperatures, may facilitate biological invasion. Aquatic animal systems are more vulnerable to biological invasion when the temperature rises. Animal personality also plays an important role in the possibility of successful establishment of invasive species. However, it is still unclear how personality traits of invasive species will respond to global warming. This study focuses on juveniles of red swamp crawfish Procambarus clarkii, an invasive poikilothermic species with wide distribution throughout the world, and explores how slight temperature increases influence three personality traits （ac- tivity, boldness and aggressiveness） ofP. clarkii. For each personality, individual variation is to be presented in condition of the same temperature. Individual personality values can significantly increase with the subtle rising of water temperature. Significant correlations among activity, boldness and aggressiveness are found at any temperature stage, and such relationships are main- tained at a similar level in the face of different temperatures. It is most likely that significant expressions of personality traits may be an ecological compensation strategy to offset increased metabolic costs when faced with small temperature increases. Aggres- sion syndromes are formed due to stable linkages between personality traits, in order to acquire allopatric resources efficiently and establish a new population in this species

关键词： Animal personality Biological invasion Climate change Crawfish Invasive species

Postconflict behavior among female Sichuan snub-nosed monkeys Rhinopithecus roxellana within one-male units in the Qinling Mountains,China

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Current Zoology 2010年第2期56卷 222-226页

作者： Jian ZHANG dapeng zhao Baoguo LI College of Life Sciences Northwest University Xi＇an 710069 China Institute of Zoology Shaanxi Academy of Sciences Xi＇an 710069 China Institute of Zoology Chinese Academy of Sciences Beijing 100101 China

For group-living primates, the information on postconflict management is crucial for understanding primate competition and cooperation. However, such information is poorly known for snub-nosed monkeys, especially for wild populations. In this study, from September 2007 to June 2008, we investigated postconflict behavior among adult females Sichuan snub-nosed monkeys Rhinopithecus roxellana within one-male units in a wild, provisioned group in the Qinling Mountains of China by means of the time-rule method and the PC-MC method. We obtained a total of 81 PC-MC pairs and each individual was involved in only 0.004 aggressive behavior per observation hour. The first affiliative behavior was more likely to occur within the first minute after a conflict. The postconflict affiliative behaviors most often seen were contact-sit, embrace and grooming. The affiliative contacts between adult females occur due to selective attraction, i.e. reconciliation. The pattern of postconflict affiliation demonstrates that the R. roxellana belongs to a tolerant species.

关键词： Sichuan snub-nosed monkey Rhinopithecus roxellana Female Postconflict behavior Reconciliation

Hand preference during bimanual coordinated task in northern pig-tailed macaques Macaca leonina

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Current Zoology 2016年第4期62卷 385-391页

作者： dapeng zhao Yuan WANG Xueyan WEI Tianjin Key Laboratory of Animal and Plant Resistance College of Life Sciences Tianjin Normal University Tianjin 300387 Wildlife Institute Beijing Forestry University Eco-Bridge Continental Beijing 100083 China

In humans, handedness is one defining characteristic regardless of cultures and ethnicity. Population-level right handedness is considered to be related with the evolution of left hemisphere for manual control and language. In order to further understand evolutionary origins of human cerebral lateralization and its behavioral adaptation, standardized measures on hand preference are required to make reliable comparison in nonhuman primate species. In this study, we present the first evidence on hand preference during bimanual coordinated tasks in northern pig-tailed ma- caques Macaca leonina. The classical TUBE task was applied to examine hand preference among nine individuals from Tianjin Zoo of China. We recorded and made analysis on both frequency and bout data on manual laterality. The results consistently show that subjects displayed strong indi- vidual hand preferences, whereas no significant group-level handedness was found. There were no sex and age significant differences on both direction and strength of hand preference. The M. leonina preferred to use the index finger to extract the baited food inside the tube. Our findings fill the knowledge gap on primate handedness, and efficiently affirm the robustness of the TUBE task as one efficient measure of hand preference in primates.

关键词： bimanual coordination hand preference Macaca leonina primate evolution.

Sex differences in anogenital distances and digit ratios in wild David＇s rock squirrels Sciurotamias davidianus

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Current Zoology 2014年第2期60卷 180-185页

作者： dapeng zhao Zhuoyue CHEN Baoguo LI Tianjin Key Laboratory of Animal and Plant Resistance College of Life Sciences Tianjin Normal University Tianjin 300387China College of Life Sciences Northwest University Xi'an 710069 China

The prenatal hormonal environment plays an important role in organizing sex differences in the morphology, physiology and behavior of humans as well as other vertebrates. Currently, all related research on rodents has been focused on Myomorpha. This study presents data on sex differences in the anogenital distance （AGD） and the ratio of the second to the fourth digit length （2D：4D） from 44 wild David＇s rock squirrels Sciurotamias davidianus captured from the Qinling Mountains, China. This was the first study of a species from Sciuromorpha. The AGD as well as body mass are sexually dimorphic. There are no sex differences or lateral asymmetry in 2D：4D. Significant correlation was not found between AGD and 2D：4D for any paw. The findings indicate that 2D：4D may not be fixed or influenced by the prenatal steroidal environment in David＇s rock squirrels [Current Zoology 60 （2）： 180-185, 2014].

关键词： Anogenital distance 2D:4D Seiurotamias davidianus Sex dimorphism

Do deposed adult male Sichuan snub-nosed monkeys Rhinopithecus roxellana roam as solitary bachelors or continue to interact with former band members?

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Current Zoology 2009年第3期55卷 235-237页

作者： dapeng zhao Baoguo LI College of Life Sciences Northwest University Xi＇an 710069 China

Dispersal patterns exhibited by group-living animals play an important role in individual reproductive success and survival, as well as population and social dynamics （Greenwood, 1980; Isbell and van Vuren, 1996; Kappeler and van Schaik, 2002）. Dispersing individuals may emigrate voluntarily, or they may be forcibly evicted by other individuals （Pusey and Packer, 1987; Clobert et al. , 2001 ）. One cause of individual dispersal is when an extra-group male compels another male to leave a group of females. This phenomenon has been well documented in primates, especially Old World monkey species （ e.g. Colobus vellerosus ： Saj and Sicotte, 2005 ; Erythrocebus patas ： Ohsawa, 2003 ; Macaca fascicularis ： van Noordwiik and van Schaik, 2001）.

关键词： Deposed males All male groups One-male groups Behavioral strategy

Seismic tomography of the Moon

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Chinese Science Bulletin 2008年第24期53卷 3897-3907页

作者： zhao dapeng LEI JianShe LIU Lucy Department of Geophysics Tohoku University Sendai 980-8578 Japan Institute of Crustal Dynamics China Earthquake Administration Beijing 100085 China

We attempted to determine the first three-dimensional P and S wave velocity and Poisson's ratio structures of the lunar crust and mantle down to 1000 km depth under the near-side of the Moon by applying seismic tomography to the moonquake arrival-time data recorded by the Apollo seismic network operated during 1969 to *** results show that significant lateral heterogeneities may exist in the lunar *** there is no plate tectonics in the Moon,the lateral heterogeneities may be produced at the early stage of the Moon formation and evolution,and they have been preserved till *** seems to be a correlation between the distribution of deep moonquakes and lateral velocity variations in the lunar lower mantle,suggesting that the occurrence of deep moonquakes may be affected by the lunar structural heterogeneity in addition to the tidal *** this is an experimental work and the result is still preliminary,it indicates that tomographic imaging of the lunar interior is feasible.

关键词：地震层析成像月亮地震数据内部构造月震

Sex-specific participation in inter-group conflicts within a multilevel society:the first evidence at the individual level

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Integrative Zoology 2013年第4期8卷 441-454页

作者： dapeng zhao Zhuoyue CHEN Baoguo LI Teresa ROMERO Tianjin Key Laboratory of Animal and Plant Resistance College of Life SciencesTianjin Normal UniversityTianjinChina College of Life Sciences Northwest UniversityXi’anChina Institute of Zoology Shaanxi Academy of SciencesXi’anChina Department of Cognitive and Behavioral Science Graduate School of Arts and SciencesUniversity of TokyoTokyoJapan Japan Society for the Promotion of Science ChiyodaTokyoJapan

Inter-group conflicts are common among many group-living animals and involve potentially complex motivations and *** living in multilevel societies offer a good opportunity to study inter-group *** study is the first to explore the function of sex-specific participation during inter-group conflicts within a multilevel society at the individual *** Sichuan snub-nosed monkey(Rhinopithecus roxellana)is an endangered seasonal breeding species living in a multilevel *** Sep 2007 to May 2008 we recorded 290 inter-group conflicts of a free-ranging provisioned band of *** in the Qinling Mountains of China to investigate the function of individual aggression during inter-group *** findings show that adult males were the main participants in inter-group conflicts,while females took part in them only *** male participation rate during the mating season,when adult females were estrous,was significantly higher than that during the non-mating ***,males directed their aggression to other males,and directed more intense aggression towards bachelor males than towards other resident *** both sexes,the participation rate as initiators was higher in the winter than that in the spring;and there was a significant positive correlation between group size and the participation rate as *** results suggest that inter-group aggression in Sichuan snub-nosed monkeys is linked to both mate defense and resource defense.

关键词： inter-group conflict mate defense multilevel society resource defense Rhinopithecus roxellana

Eurasian blackbird predated by wild Rhinopithecus roxellana in the Qinling Mountains,China

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Integrative Zoology 2008年第3期3卷 176-179页

作者： dapeng zhao Xiaowei WANG Kunio WATANABE Baoguo LI College of Life Sciences Northwest UniversityXi’anChina Primate Research Institute Kyoto UniversityAichiJapan

Although there are some reports that have described primates eating animals,it is unknown whether predation on vertebrates exists in herbivorous leaf-eating *** have witnessed firsthand wild Sichuan snub-nosed monkeys(Rhinopithecus roxellana)preying on and consuming Eurasian blackbirds(Turdus merula)in the Qinling Mountains of *** event suggests that ***,which has previously been described as a herbivorous leaf-eating primate,may be partially carnivorous and the correct classification of this species would be ***,food-share behavior among higher-ranked members occurs in a one-male unit when vertebrate prey is hunted by this species.

关键词： bird predation food choice food sharing Rhinopithecus roxellana Turdus merula.

Engineering nano-structures with controllable dimensional features on micro-topographical titanium surfaces to modulate the activation degree of M1 macrophages and their osteogenic potential

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Journal of Materials Science & Technology 2022年第1期96卷 167-178页

作者： Luxin Liang Qianli Huang Hong Wu Hao He Guanghua Lei dapeng zhao Kun Zhou State Key Laboratory of Powder Metallurgy Central South UniversityChangsha 410083China Foshan(Southern China)Institute for New Materials Foshan 528200China Department of Vascular Surgery The Second Xiangya HospitalCentral South UniversityChangsha 410011China Department of Orthopedics Xiangya HospitalCentral South UniversityChangsha 410008China College of Biology Hunan UniversityChangsha 410082China School of Mechanical and Aerospace Engineering Nanyang Technological UniversitySingapore 639798Singapore

Modulating the activation state and degree of macrophages still remains as a challenge for the topographical design of Ti-based *** this work,micro/nano-structured coatings were prepared on Ti substrates by micro-arc oxidation(MAO)and subsequent hydrothermal(HT)*** varying the HT conditions,plate-like nano-structures with an average length of 80,440 or 780 nm were obtained on MAO-prepared micro-topographical *** on the dimensional features of nano-plates,the specimens were noted as Micro,Micro/Nano-180,Micro/Nano-440 and Micro/Nano-780,*** in vitro results showed that the activation state and degree of macrophages could be effectively modulated by the micro/nano-structured surfaces with various dimensional *** to the Micro surface,the Micro/Nano-180 surface activated both M1 and M2 phenotype in macrophages,while the Micro/Nano-440 and Micro/Nano-780 surfaces polarized macrophages to their M1 *** activation degree of M1 macrophages followed the trend:Micro

关键词： Titanium,Micro/nano-structures Macrophages activation Inflammatory response Osteogenesis