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| 1 | 雷州半岛红树林湿地鸟类多样性显示文摘从2000年5月-2003年11月,调查了雷州半岛红树林湿地鸟类。共记录鸟类133种,水鸟和迁徙鸟分别占总记录鸟类数量的81.7%和70.4%。分别有9种、2种、16种和12种鸟被列为中国红皮书保护种、IUCN保护种、CITES保护种和中国国家Ⅱ级保护种;还有63种被列为中日候鸟协定保护种、32种被列为中澳候鸟协定保护种。不同调查地点,鸟类的种类和数量相差较大,高桥鸟类最丰富,记录到83种鸟;五里鸟类种类最少,仅记录到40种鸟,各地鸟类种的相似性很低。环颈鸻(Charadrius alexandrinus)、白腰杓鹬(Nume-nius arquata)和红嘴鸥(Larus ridibundus)在雷州半岛的种群数量达到国际重要湿地的标准。雷州半岛鸟类种的丰度和多度季节变化明显,冬季种类多、数量丰富,夏季种类少、数量贫乏。冬季和夏季总的鸟类数量(P=0.043)和水鸟数量(P=0.001)差异明显。保护整个沿海红树林湿地是保护雷州半岛红树林湿地鸟类多样性的关键。 | 邹发生 杨琼芳 蔡俊钦 John Howes Tom Dahmer 张苇 | 2008 | 生态学杂志2008,27,3: | 22 |
| 2 | Morphometric discrimination of wild from farmed Dybowski’s frog (Rana dybowskii) based on hindlimb length显示文摘Commercial farming of anuran species that are declining in the wild raises a need to discriminate wild from farmed frogs.We hypothesized wild frogs might have extended hindlimbs due to greater frequency or intensity of jumping relative to farmed frogs,highlighting a morphometric approach to discrimination of wild from farmed frogs using hindlimb length.In the present study,Dybowski's frog(Rana dybowskii) was used to test this hypothesis.We measured body mass(Mb) and hindlimb length(Lh) of 2-year old farmed frogs and wild frogs aged 2 to 5 years.Dybowski's frog demonstrated significant dimorphism in Mb and Lh.Mb was significantly greater among farmed 2-year old frogs in both sexes(p=0.000),while only among females was Lh significantly greater for wild frogs(p=0.000).Lh/Mb was used as an index for origin discrimination to eliminate the influence of Mb due to variation of husbandry conditions among farms.Mean Lh/Mb for farmed frogs was significantly lower than for wild frogs(p=0.000) in the 2-year old age class.Discrimination correctly classified 84.4% of farmed and 96.3% of wild male frogs.Among females,92.9% of farmed frogs and 90.1% wild frogs were correctly classified.The overall correctness of classification was 92.1% and 90.8% for males and females,respectively.However,Lh/Mb revealed variation with age,resulting in reduced discriminative power for frogs ≥3 years old.We introduced a coefficient Ce to adjust the Lh/Mb of frogs ≥3 years to the level equivalent to 2-year frogs.The adjustment achieved 89.5% for overall correctness of origin for wild males and 92.4% for wild females ≥3 years old.These results show that Lh/Mb is an effective index to discriminate wild from farmed Dybowski's frog.Since the physical demands of jumping are common among anurans,this index is also potentially applicable to other anuran species. | XIA Rui HUANG Xiao-ming YANG Shu-hui XU Yan-chun Ying Lu Thomas D. Dahmer | 2011 | Journal of Forestry Research2011,22,2: | 3 |
| 3 | Simultaneous polyandry and heteropaternity in tiger(Panthera tigris altaica):Implications for conservation of genetic diversity in captive populations of felids显示文摘Male tigers(Panthera tigris altaica) in captivity copulate alternatively with an estrous female,suggesting a potential for heteropaternity as an effective reproductive strategy to maximize genetic diversity of offspring.We analyzed microsatellites to test and compare the genetic output of multiple male mating(simultaneous polyandry) and single male mating(monogamy) with a female in a captive population.Simultaneous polyandry resulted in heteropaternity in 66.7% observed litters.No significant differences between parental populations and between offspring populations were detected in the number of alleles(A),expected heterozygosity(H e),number of effective alleles(N e) per locus and standard individual heterozygosity(SH)(P>0.05 for all 4 indexes).Comparisons showed no significant reduction of A,H o,H e and SH from parental population to offspring population for the two mating modes(P>0.05) except for SH in polyandrous families(P=0.029).However,such reduction was equivalent to single mating families when the influence of relatedness was eliminated using effective SH(E SH)(P>0.05).These results highlight an alternative strategy for managing captive populations of tiger and other wild felids in which animals are combined at one location allowing for copulation by multiple males to encourage heteropaternity in favor of maintained genetic diversity among offspring. | LIU Dan MA Yue LI HuiYi XU YanChun ZHANG Yan DAHMER Thomas BAI SuYing WANG Jian | 2013 | Chinese Science Bulletin2013,58,17: | 3 |
| 4 | MAPK and JAK-STAT signaling pathways are involved in the oxidative stress-induced decrease in expression of surfactant protein genes 显示文摘 | Park SK Dahmer MK Quasney MW | 2012 | Cell Physiol Biochem2012,30,2: | 1 |
| 5 | Comparative protein accumulation patterns in soybean somatic and zygotic embryos显示文摘 | Mark L. Dahmer David F. Hildebrand Glenn B. Collins | 1992 | In Vitro – Plant1992,,2: | 1 |
| 6 | The influence of genetic variation in surfactant protein B on severe lung injury in African American children显示文摘 | Dahmer MK O'cain P Patwari PP | 2011 | Crit Care Med2011,39,5: | 1 |
| 7 | Genetic polymor- phisms in sepsis显示文摘 | Dahmer MK Randolph A Vitali S | 2005 | Pediatr Crit Care Med2005,6,3: | 1 |
| 8 | Analysis of airfoil trailing edge heat transfer and its significance in thermal-mechanical design and durability显示文摘 | CUNHA F J DAHMER F T CHYU M K | | 0,,04: | 1 |
| 9 | Health effects of hawthorn显示文摘 | Dahmer S Scott E | | 0,,04: | 1 |
| 10 | Glucosamine显示文摘 | Dahmer S Schiller R M | 2008 | American Family Physician2008,78,4: | 1 |
| 11 | MAPK and JAK-STAT signaling pathways are involved in the oxidative stress-induced decrease in expression of surfactant protein genes显示文摘 | Park SK Dahmer MK Quasney MW | 2012 | Cell Physiol Biochem2012,30,2: | 1 |
| 12 | The influence of genetic varia- tion in surfactant protein B on se'ere lung injury in African American children 显示文摘 | Dahmer MK O'Cain P Patwari PF' | 2011 | Crit Care Med2011,39,5: | 1 |
| 13 | lmidazolinonetolerant Crops; History, Current Status and Future显示文摘 | TAN S EVANS R R DAHMER M L | 2005 | Pest Manag Sci2005,61,: | 1 |
| 14 | Glucosamine 显示文摘 | Dahmer S Schiller RM | 2008 | Am Faro Physician2008,78,4: | 1 |
| 15 | Imidazolinone-tolerant crops:history,current status and future显示文摘 | Tan S Evans RR Dahmer ML | | 0,,03: | 1 |
| 16 | Association be- tween surfaetant protein B + 1580 polyn~orphism and the risk of re- spiratory failure in adults with community-acquired pneumonia 显示文摘 | Quasney MW Waterer GW Dahmer MK | 2004 | Crit CareMed2004,32,: | 1 |
| 17 | A rapid screening technique for determining the lipid composition of soybean seeds 显示文摘 | Dahmer ML Fleming PD Collins GB | 1989 | J Am Oil Chem Soc1989,66,4: | 1 |
| 18 | The effects of benthos and wetland area on shorebird abundance and species richness in coastal mangrove wetlands of Leizhou Peninsula,China显示文摘 | Zou Fashen Zhang Hanhua Dahmer T | | 0,,: | 1 |
| 19 | Imidazolinone-tolerant crops:history,current status and future显示文摘 | Tan S Evans R R Dahmer M L | 2005 | Pest Manag Sci2005,61,: | 1 |
| 20 | Imidazolinone-tolerant crops:history,current status and future显示文摘 | Tan S Evans R R Dahmer M L | 2005 | Pest Management Science2005,61,: | 1 |