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| 1 | Limited gene flow and partial isolation phylogeography of Himalayan snowcock Tetraogallus himalayensis based on part mitochondrial D-loop sequences显示文摘 | Xiaoli WANG Jiangyong QU Naifa LIU Xinkang BAO Sen SONG | 2011 | Current Zoology2011，57，6： | 5 |
| 2 | Female Reproductive Cycles of Phrynocephalus przewalskii (Lacertilia:Agamidae) in the Tengger Desert,China显示文摘The timing of reproduction can significantly affect an offspring's fitness, thereby also influencing the fitness of the parents, especially in species inhabiting extreme environments, such as deserts. Female reproductive cycles in Phrynocephalus przewalskii were studied from April to September 2008. Significant cycles of gonadal volume were found in all studied populations and the cycles were similar among the various populations. Females began vitellogenesis in April and contained oviductal eggs form May to June. Gonad volume decreased significantly in July and reached minimum volume from August to September. The follicular growth was negatively correlated with increasing precipitation and temperature in all populations. Hatching occurs during summer and early fall, when most of the annual rainfall occurs. Mean clutch size based on all populations was 2.7 ± 0.9 SE(n = 71). | Wei ZHAO Nannan YU Yajuan WANG Weihong JI Naifa LIU | 2011 | Asian Herpetological Research2011，2，1： | 3 |
| 3 | Geographic Variation in Clutch and Egg Size for the Lizard Phrynocephalus przewalskii(Squamata:Agamidae)显示文摘In order to tease apart proximate vs.ultimate sources of variation in reproductive strategy,studies have increasingly focused on populations rather than species as the unit of interest.The reproductive parameters of Phrynocephalus przewalskii(Agamidae)in different populations within the same phylogenetic clade were compared in this study.Female SVL,clutch size,egg volume and clutch volume varied significantly among populations.With increase in latitude,clutch size increased,while egg size decreased.Relatively fewer but larger eggs were produced with increasing of population density.Food availability had positive effects on clutch size,but no effect on egg size.Our result indicated that latitude,food availability and population density may be the proximate factors affecting the reproductive parameters of P.przewalskii. | Yajuan WANG Weihong JI Wei ZHAO Nannan YU Naifa LIU | 2011 | Asian Herpetological Research2011，2，2： | 2 |
| 4 | Sexual Dimorphism of Head Size in Phrynocephalus przewalskii: Testing the Food Niche Divergence Hypothesis显示文摘Sexual size dimorphism(SSD)is a general phenomenon in lizards,and can evolve through sexual selection or natural selection.But natural selection,which was thought to operate mainly through reducing the competition between the two sexes(niche divergence hypothesis),gave rise to a lot of controversy.We tested the niche divergence hypothesis in the toad-headed lizard Phrynocephalus przewalskii by comparing diet composition and prey sizes between males and females.The species was found to be sexual dimorphic,with males having relatively larger snout-vent length,head width,head length,and tail length,while females have relatively larger abdomen length.Based on analysis of 93studied stomachs,a total of 1359 prey items were identified.The most common prey items were formicid,lygaeid and tenebrionid.The two sexes did not differ in the relative proportions of prey size categories they consumed and the dietary overlap based on prey species was high(O=0.989).In addition,the meal size,the volume or any maximal dimension of the largest prey item in the stomach was not explained by the sexes.According to our results,food niche divergence might not play an important role in the SSD evolution of P.przewalskii. | Wei ZHAO Naifa LIU | 2013 | Asian Herpetological Research2013，4，4： | 2 |
| 5 | Genetic Structure of Przewalski’s Rock Partridge (Alectoris magna) Populations in the Longzhong Loess Plateau, China显示文摘 | Yanke Chen Zhongliang Zhao Naifa Liu | 2006 | Biochemical Genetics (-)2006，，5： | 1 |
| 6 | Reproductive success of the crested ibis Nipponia Nippon显示文摘 | YU Xiaoping LIU Naifa XI Yongmei | | 0，，04： | 1 |
| 7 | Recurrent laryngeal nerve injury inthyroid surgery显示文摘 | Hazem M Zakaria NaifA | 2011 | Oman Med J2011，26，： | 1 |
| 8 | Variation in egg and clutch size of the Black Redstart(Phoenicurus ochruros) at the northeastern edge of the Qinghai-Tibetan Plateau显示文摘Background: In birds, the trade-off between the quality and number of nestlings is one of the most important theories of the evolution of life history of birds, which is closely related with climate. We investigated variation in egg and clutch size of the Black Redstart(Phoenicurus ochruros) on the northeastern edge of the Qinghai-Tibetan Plateau in order to explore and test the relation between egg size and clutch size and the rules governing the variation in these two components with climate change.Methods: We monitored each located nest daily to determine the exact laying order of the eggs and measured their sizes. The variations in egg volume and clutch size between 2008 and 2009 were studied by independent sample t tests. The difference in egg volume in the sequence of the laying order was tested by Kendall's W test and we employed Pearson correlations to investigate the relation between egg size and laying order. All statistical analyses were performed with IBM SPSS Statistics, version 19.0Results: In 2008, the mean egg volume of the Black Redstart was 2.40 and clutch size wer± 0.20 cm^3(n e 2.26 = 50), and the mean clutch size 4.90 ± 0.57(n = 11). In 2009, the mean egg volumeation between eg± 0.18 cm^3(n g size and layin= 74) and 5.20 g order(r ± 0.26(n = 15) respectively. We found a significantly positive correl, while egg size was strongly and negatively correlated with clutch size(r = 0.397, p = 0.030) smaller eggs but a larger clutch in a brood in a resource-rich year, w= h-0.274, p ereas large= 0.002). Black Redstarts tend to layr eggs but smaller clutches are produced in a harsh year.Conclusions: The Black Redstart adopted a 'brood survival strategy' to ensure that more offspring could survive. The Black Redstart' trade-off in egg volume and clutch size would guarantee that it will gain maximum benefit in any case. | Sen Song Jiani Chen Bo Jiang Naifa Liu | 2016 | Chinese Birds2016，，4： | 0 |
| 9 | Habitat selection of the Tibetan Snow Cock Tetraogallus tibetanus in the spring in Lhasa显示文摘The habitat selection of Tibetan Snow Cocks in shrub vegetation was investigated in Lhasa,Tibet,China,between March and April,2005.Fourteen parameters were measured.These include altitude,slope,slope aspect,slope position,vegetation cover,plant type and other environmental parameters.Results show that Snow Cocks favor foraging in areas where vegetation cover was small and close to the residents’houses.Supplementary food supplied by humans has caused Snow Cocks to decrease their foraging range.Snow Cocks also favor roosting in areas with low vegetation,sparse grass,short grass,large rocks and close to houses.The Snow Cocks’activity in the study areas show a close relationship with human activities. | Jiaqi LI Hongquan SHI Naifa LIU | 2008 | Frontiers in Biology2008，3，2： | 0 |
| 10 | Population structure and demographic history of the chukar partridge Alectoris chukar in China显示文摘 | Sen SONG Shijie BAO Ying WANG Xinkang BAO Bei AN Xiaoli WANG Naifa LIU | 2013 | Current Zoology2013，59，4： | 0 |
| 11 | Asymmetrical introgression patterns between rusty-necklaced partridge (Alectoris magna) and chukar partridge (Alectoris chukar) in China显示文摘The rusty-necklaced partridge(Alectoris magna)and the chukar partridge(Alectoris chukar)are the most common gamebirds in northern China.Previous comparisons of mitochondrial DNA(mtDNA)have revealed an introgression phenomenon between 2 species of partridge in the Liupan Mountain region of China.mtDNA is maternally inherited,making it difficult to determine the origin of parental genes.We assessed the genetic variation and gene flow between these 2 species of partridges using 8 microsatellite loci as neutral diagnostic markers in 171 samples from the hybrid zone.Our data revealed an extensive divergence of genetic structure between populations of rusty-necklaced partridges and chukar partridges.In this study,we found that 19 samples had been previously morphologically identified as rusty-necklaced partridge were genetically identified as hybrids through Bayesian analysis using STRUCTURE analysis.These hybrids exhibited a mosaic of alleles that were derived from both parental lineages.However,chukar partridges did not present the genotype of the rusty-necklaced partridge.Thus,our findings demonstrate that the hybridization between the 2 species was the result of asymmetrical introgression,with gene flow occurring only from the chukar partridge to the rusty-necklaced partridge.In addition,we also note the high linkage disequilibrium in populations of the rusty-necklaced partridge.These results indicate that although unidirectional introgression did not reduce genetic diversity of the Alectoris partridges,it affected the balance of gene flow between populations.The data from microsatellite DNA prompted our concern about the genetic integrity of the rusty-necklaced partridge. | Yanke CHEN Bei AN Naifa LIU | 2016 | Integrative Zoology2016，11，5： | 0 |
| 12 | Sex Ratio and Sexual Size Dimorphism in a Toad-headed Lizard, Phrynocephalus guinanensis显示文摘Phrynocephalus guinanensis has sexual dimorphism in abdominal coloration, but its ontogenetic development of sexual size dimorphism(SSD) is unknown. Using mark-recapture data during four days each year from August from 2014 to 2016, we investigated the development of sex ratios, SSD, sex-specific survivorship and growth rates in a population of P. guinanensis. Our results indicated that the sex ratio of males to females was 1:2.8. Males had a lower survival rate(6%) than females(14%) across the age range from hatchling to adult, which supported the discovered female-biased sex ratio potentially associated with the low survival rate of males between hatchlings and juveniles. Male-biased SSD in tail length and head width existed in adults rather than in hatchling or juvenile lizards. The growth rates in body dimensions were undistinguishable between the sexes during the age from hatchling to juvenile, but the growth rate in head length from juvenile to adult was significantly larger in males than females. Average growth rate of all morphological measurements from hatchling to juvenile were larger compared with corresponding measurements from juvenile to adult, but only being significant in tail length, head width, abdomen length in females and snout-vent length in males. We provided a case study to strengthen our understanding of the important life history traits on how a viviparous lizard population can survive and develop their morphology in cold climates. | Kailong ZHANG Haojie TONG Yubin WO Naifa LIU Yuanting JIN | 2018 | Asian Herpetological Research2018，9，1： | 0 |
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