Feeding Appropriate Nutrients during the Adult Stage to Promote the Growth and Development of Offspring.

Nutrients consumed during the adult stage are a key factor affecting the growth, development, and reproduction of insect offspring and thus could play an important role in insect population research. However, there is absence of conclusive evidence regarding the direct effects of parental (F) nutritional status on offspring (F) fitness in insects. Matsumura is a serious, widespread fruit-boring pest that negatively impacts orchards and the agricultural economy across East Asia.

Multidimensional climatic niche conservatism and invasion risk of .

The cotton mealybug , a globally invasive insect, is listed as a national quarantine pest in agriculture and forestry, which seriously threatens biological safety of China. Niche conservatism is a key assumption of species distribution model. An evaluation of the applicability of using ecological niche models to assess the invasion risk of cotton mealybug, and further optimizing model complexity, are of both theoretical and practical significance.

Effects of Environmental Factors on the Spatial Distribution Pattern and Diversity of Insect Communities along Altitude Gradients in Guandi Mountain, China.

Understanding the distribution patterns and underlying maintenance mechanisms of insect species is a core issue in the field of insect ecology. However, research gaps remain regarding the environmental factors that determine the distribution of insect species along altitudinal gradients in Guandi Mountain, China. Here, we explored these determinants based on the distribution pattern and diversity of insect species from 1600 m to 2800 m in the Guandi Mountain, which covers all typical vegetation ecosystems in this area.

Potentially Suitable Geographical Area for under Current and Future Climatic Scenarios Based on Optimized MaxEnt Model.

is considered to be an important and effective insect vector for the spread of the important international forest quarantine pest, . The precise determination of potential suitable areas of is essential to monitor, prevent, and control worldwide. According to the distribution points and climatic variables, the optimized MaxEnt model and ArcGIS were used to predict the current and future potentially suitable areas of worldwide.

Functional relationship between woody plants and insect communities in response to infestation in the Three Gorges Reservoir region.

To study the effect of the invasion of on the functional relationship between woody plants and insect communities, the populations of tree species and insect communities were investigative in the Masson pine forests with different infestation durations of . In this study, the number of began to decrease sharply, whereas the total number of other tree species in the arboreal layer increased gradually with the infestation duration of . The principal component analysis ordination biplot shows that there was a significant change in the spatial distribution of woody plant species in different Masson pine forest stands.

Effect of infection on leaf photosynthetic characteristics and resource-use efficiency of .

Pine wilt disease (PWD) is considered as the most destructive forest-invasive alien species in China. We measured gas exchange parameters and foliar carbon isotope ratios (δC) of different infection phases of Masson pine in order to investigate the effect of infection on photosynthetic responses and resource-use efficiency. The results showed that net photosynthetic rate (), transpiration rate (), stomatal conductance (), and internal CO concentrations () decreased in the infested trees at photosynthetic photon flux density (PPFD) levels from 0 to 2,000 μmol m s compared with controls.

Effects of pine wilt disease invasion on soil properties and Masson pine forest communities in the Three Gorges reservoir region, China.

Pine wilt disease (PWD) has caused significant Masson pine mortality in the Three Gorges reservoir region in central China. In this study, five uniform Masson pine stand types infected by PWD were selected and surveyed on slopes and aspects with similar environmental conditions. In sites that had been infected, soil bulk density was reduced, and the difference among the groups was statistically significant (P < 0.

Quantitative classification and environmental interpretation of secondary forests 18 years after the invasion of pine forests by Bursaphelenchus xylophilus (Nematoda: Aphelenchoididae) in China.

With growing concerns over the serious ecological problems in pine forests (Pinus massoniana, P. thunbergii) caused by the invasion of Bursaphelenchus xylophilus (the pine wood nematode), a particular challenge is to determine the succession and restoration of damaged pine forests in Asia. We used two-way indicator species analysis and canonical correlation analysis for the hierarchical classification of existing secondary forests that have been restored since the invasion of B.