The elementary characteristics of Alsophila podophylla and their relationships with forest standing tree density and soil factors on Wuzhi Mountain Effect of temperature and food concentration on population dynamic and sexual reproduction of Daphnia magna Survey for the Breeding Biology and Danger Status of the Bearded Vulture Gypaetus barbatus in the Qinghai-Tibetan Plateau The Risk Assessment of Pine Wood Nematode Disease in Huangshan Scenic Area I. Pine Bore Species Population and Dynamic Monitoring A Preliminary Study on the Factors Influencing Population Density of Oracella acuta Relationship between Allothrombium ignotum population density and eco-environment DENSITY, STRUCTURE AND BIOMASS OF PARASHOREA CHINENSIS POPULATIONS IN DIFFER ENT PATCHES IN XISHUANGBANNA, SW CHINA Relationship between growth potential of pine,population density of Monochamus alternatus and pathogenicity of Bursaphlenchus xyloophilus The effect of vitamin E on reproduction of Brachionus calyciflorus (rotifer: monogononta) Population Density Fluctuation Feature of Brandt‘s Voles during the Growing Season of Vegetation The Effect of Population Density in the Perennial Ryegrass/White Clover Mixed Swards under Different Grazing Intensity Influences of Population Density of Plantago virginica on Its Morphological Characters of Underground and Aboveground Organs Spatial distribution characteristics of urban potential population in Shenyang City based on QuickBird image and GIS. The geographic distribution pattern and habitat selection of the Chinese concave- eared torrent frog in southern Anhui Province Estimating population density of small rodents using camera traps Study on Trapping Monochamus alternatus and Other Pine Boring Beetles with M99-1 Liquid Attractant Stumes on Density Estimation for the Pine Caterpillar through Counting of Larvae on Short Trees Studies on Population Density and Secretion of Lac Insect Studies on the Biological Characters of the Chinese Pear Sucker, Psylla chinesis Population status and dynamic trends of Amur tiger‘s prey in Eastern Wandashan Mountain, Heilongjiang Province The distribution of male and female Populus cathayana populations along an altitudinal gradient A Preliminary Demographic Study of Pinus massoniana at Jinyun Mountain, Sichuan Province Research on regional differences of cemetery development Effect of the 2008 ice storm on the butterfly resources in Nanling area of China Relationships Between Population Growth and Population Density in Monocultures of Larix leptolepis Relationship between human activities and survival of rare and endangered species Davidia involucrata Effect of initial population density on resting egg formation of rotifer Brachionus calyciflorus Correlation analysis of Aeluropus littoralis var.sinensis population density and biomass with its sexual reproduction characteristics A STUDY ON THE RELATIONSHIPS BETWEEN OCCURRENCE OF ARMAND PINE BARK-WEEVIL(PISSODES YUNNANENSIS LONGER) AND ENVIRONMENT AN EMPIRICAL MODEL DESCRIBING NATURAL THINNING PROCESS OF PLANT POPULATION Natural forming causes of China population distribution. THE EFFECTS OF GRASSHOPPER POPULATION DENSITY ON THE GROWTH OF GRASS AND FORAGE LOSS IN NATURAL GRAZING GROUND STUDY ON THE FORECAST OF THE POPULATION DYNAMICS OF MANDARIN VOLE Comparison of population density in two sympatric nuthatch species TWO EASY WAYS FOR ESTIMATING THE POPULATION OF UNASPIS YANONENSIS KUWANA ON CITRUS The population recovery of rodent pests after application of anticoagulant in agro-ecosystem in the middle and lower reaches of Yangtze Valley Effect of Nitrogen Fertilizer on the Characteristics of Leymus chinensis (Trin.) Tzvel.Individual Plant and Population Investigation of Year-Round Population Dynamics of Pseudoregma bambusicola and Its Regulating Factors EFFECTS OF ECOLOGICAL CONDITIONS ON POPULATION DENSITY OF BIRD CHERRY OAT APHID STUDIES ON THE REPRODUCTION AND PHOTOSYNTHETIC ECOPHYSIOLOGY OF THE EXOTIC INVASIVE PLANT, PLANTAGO VIRGINICA A Study on the Distribution Law of the Overwintering Larvae of Dendrolimus punctatus Density and Biomass Dynamics of Pinus taiwanensis at Songyang County, Zhejiang Province Spatial pattern responses of Achnatherum splendens to environmental stress in different density levels Relationships between population densities of the cereal cyst nematode, Heterodera avenae, and yield losses of winter wheat in Hebei Province Rela tionship between Mean Popula tion Density andWorm Hole ofH ylobite lus xiaoi Zhang in Sla sh Pine A comparative study on intraspecific competitiveness of different ploidy wheats Effects of Plant Population Density on Fractal Dimension of Corn Based on Image Processing Winter carrying capacity and the optimum population density of wild boar in fenghuang Mountains National Nature Reserve of Heilongjiang Province Effects of population density and temperature on the growth and development of Amata sp. Growth and reproduction and their relationships with soil moisture in artificially established Artemisia sphaerocephala populations of different densities in the Alxa Desert Effects of cultivars,plant population density,pod position on the seed vigor Study on the inter-species competition of Sassafras tsumu community in the mid-subtropics and the population density adjustment Spatial pattern of hawthorn spider mite population and its application Ⅱ.Synthetical es timation of population density or adult mites and its sampling techinique STUDIES ON THE DEGREE OF INJURY BY ZOKER AND ECONOMIC THRESHOLD OF ITS CONTROL A TIME SERIES ANALYSIS FORECASTING MODELS FOR PLANTHOPPERS AND WOLF SPIDERS POPULATION DENSITIES IN RICE FIELD Relationship between the population density of ground pests and degree of damage