Forecasting the distribution range of Hylurgus ligniperda (Fabricius) (Coleoptera: Curculionidae) in the present and future under the influence of climate change.

Hylurgus ligniperda (Fabricius) is an important pest that attacks Pinus species in China. It impacts the vitality of local pine vegetation, reduces the ability to prevent windbreak and sand fixation, and causes ecological loss. MaxEnt and ArcGIS are used to predict and analyze the changes in suitable distribution areas of H.

Attract and kill trees? No simple solution for Anoplophora glabripennis (Coleoptera: Cerambycidae) control.

Anoplophora glabripennis (Motschulsky), the Asian longhorned beetle, is a serious wood-boring pest of hardwood trees. There have been records that suggest Elaeagnus angustifolia L. (Elaeagnaceae) might be an "attract and kill" tree species for A.

Sexual dimorphism and sex-biased gene expression in an egg parasitoid species, Anastatus disparis.

Background: Differences in the expression of genes present in both sexes are assumed to contribute to sex differences including behavioural, physiological and morphological dimorphisms. For enriching our knowledge of gender differences in an important egg parasitoid wasp, Anastatus disparis (Hymenoptera: Eupelmidae), sex-biased differences in gene expression were investigated using Illumina-based transcriptomic analysis.

Results: A total of 15,812 resulting unigenes were annotated, and a large set of genes accounting for 50.

Life history of aggression in (Hymenoptera: Eupelmidae) with extreme male-male combat.

Aggressive behaviour is common in animals and typically has lifetime consequences. As younger males have higher residual reproductive value than older males and lose more from injuries than older males do, the propensity for fighting tends to increase with age in many empirical reports and species. However, fighting patterns in those empirical reports cannot confirm the hypothesis that individuals cannot readily inflict injuries on their opponents.

Effect of Winning Experience on Aggression Involving Dangerous Fighting Behavior in Anastatus disparis (Hymenoptera: Eupelmidae).

Aggressive behavior is widely observed in animal species for acquiring important resources and usually includes both dangerous and nondangerous fighting patterns. Only a few species show dangerous fighting patterns that are defined by fights ending with contestants being severely injured or killed. Prior experience, an important factor in many species, has been demonstrated to affect a contestant's subsequent fighting behavior.

Male-male lethal combat in the quasi-gregarious parasitoid Anastatus disparis (Hymenoptera: Eupelmidae).

Most animals employ aggressive behaviours to acquire resources such as food, territory and mates. Although mating is important for males, which typically exhibit competitive behaviours to gain mating opportunities, they generally tend to avoid conflict escalation; while extreme combat also occurs in some species and results in death. In this study, male-male lethal combat behaviour in Anastatus disparis was examined (Hymenoptera: Eupelmidae) by investigating the characteristics of fighting and the factors that influence fighting intensity in this species.

[Comparison of respiratory diseases and symptoms among school-age children in areas with different levels of air pollution].

Objective: To compare the differences of children's health in different area, and to confirm if the prevalence of respiratory diseases and symptoms among children are closely associated with the air pollution.

Methods: A cross-sectional study was conducted in an urban area A and a suburban area B with different levels of air pollution in Beijing. Using a cluster sampling method, we recruited 4 564 children from 3 primary schools in urban A and 4 primary schools in suburban B.

[Concentration level and characteristics of indoor particle matter ≤ 2.5 µm in aerodynamic diameter under extreme weather condition in Beijing winter in 2013].

Objective: To study the concentration level and characteristics of indoor particle matter ≤ 2.5 µm in aerodynamic diameter (PM2.5) under extreme weather condition.

Monoterpenes from larval frass of two Cerambycids as chemical cues for a parasitoid, Dastarcus helophoroides.

Anopiophora glabripennis (Motsch.) (Coleoptera: Cerambycidae) is a destructive woodborer, attacking many species of deciduous hardwood trees. Apriona swainsoni (Hope) (Coleoptera: Cerambycidae) is a woodborer of Sophora japonica L.

[Relation between soil nutrient of artificially cultivated area and rhizome quality of Paris polyphylla var. yunnanensis].

Objective: To explore the relation between the quality of the Herb-Paris and their cultivation of soil nutritional status.

Methods: The soil nutrient status (0 - 30 cm) of Paris polyphylla var. yunnanensis, artificially cultivated areas were determined in 2009 and their rhizome qualities harvested in 2010 were evaluated respectively.

Sodium bisulfite improves rhizome yield and quality in Paris polyphylla.

Rhizomes of the perennial herb Paris polyphylla have been used in traditional Chinese medicine for hundreds of years. Agricultural production of the rhizomes requires 7-10 years, which is too long to meet the demand of the medicinal industry. Therefore, studies on improving the yield of the herb and shortening the culturing period are imperative.

[Tritrophic system of tree-trunkborer-insect natural enemy association].

Trunkborers, mainly bark beetles and cerambycids, are the important insect pests of forests, which can cause serious damage to forest ecosystem. Taking bark beetle and long-horned beetle as the examples, this paper summarized the research progress on the tritrophic system of tree-trunkborer-insect natural enemy association, with the past ten years research results on semiochemicals release source, active compounds identification, and release dynamics of volatiles introduced. The chemical signals selection of natural enemies and their visual function in finding hosts or preys, as well as whether there were other biological active compounds beyond this tritrophic system, which could influence the natural enemy's behaviors, were also discussed.

[Study on determination of 24 elements in drinking water-related products by soaking experiment with inductively coupled plasma-mass spectrometry].

Objective: To establish an analytical method for determining 24 metals in drinking water-related products by soaking experiment.

Methods: Inductively coupled plasma-mass spectrometry (ICP-MS) was applied to determine 24 metals in drinking water-related products by soaking experiment with using Sc, Ge, Y, In, Tb and Bi as an internal standard.

Results: The correlation coefficient r value, recovery rate, relative standard deviation was 0.

[Primary research on indoor air concentration of particulate matter in residential house and its relationship with ambient pollution level].

Objective: To investigate the indoor air concentration of particulate matter in residential house and its relationship with ambient pollution level.

Methods: Indoor and outdoor air level of PM2.5 and PM10 were monitored in 10 residential houses in downtown area.