scholarly journals Life History, Reproductive Biology, and Larval Development ofOntsira mellipes(Hymenoptera: Braconidae), a Newly Associated Parasitoid of the Invasive Asian Longhorned Beetle (Coleoptera: Cerambycidae)

2016 ◽  
Vol 109 (4) ◽  
pp. 1545-1554 ◽  
Author(s):  
Julian R. Golec ◽  
Jian J. Duan ◽  
Ellen Aparicio ◽  
Judith Hough-Goldstein
Keyword(s):  
Life History ◽  
Larval Development ◽  
Reproductive Biology ◽  
Longhorned Beetle ◽  
Asian Longhorned Beetle

scholarly journals Combining WV-2 images and tree physiological factors to detect damage stages of Populus gansuensis by Asian longhorned beetle (Anoplophora glabripennis) at the tree level

2021 ◽  
Vol 8 (1) ◽  
Author(s):  
Quan Zhou ◽  
Xudong Zhang ◽  
Linfeng Yu ◽  
Lili Ren ◽  
Youqing Luo
Keyword(s):  
Remote Sensing ◽  
Gansu Province ◽  
Tree Level ◽  
Anoplophora Glabripennis ◽  
Longhorned Beetle ◽  
Asian Longhorned Beetle ◽  
Remote Sensing Images ◽  
Physiological Factors ◽  
Abnormal Phenotype ◽  
Damage Degree

Abstract Background Anoplophora glabripennis (Motschulsky), commonly known as Asian longhorned beetle (ALB), is a wood-boring insect that can cause lethal infestation to multiple borer leaf trees. In Gansu Province, northwest China, ALB has caused a large number of deaths of a local tree species Populus gansuensis. The damaged area belongs to Gobi desert where every single tree is artificially planted and is extremely difficult to cultivate. Therefore, the monitoring of the ALB infestation at the individual tree level in the landscape is necessary. Moreover, the determination of an abnormal phenotype that can be obtained directly from remote-sensing images to predict the damage degree can greatly reduce the cost of field investigation and management. Methods Multispectral WorldView-2 (WV-2) images and 5 tree physiological factors were collected as experimental materials. One-way ANOVA of the tree’s physiological factors helped in determining the phenotype to predict damage degrees. The original bands of WV-2 and derived vegetation indices were used as reference data to construct the dataset of a prediction model. Variance inflation factor and stepwise regression analyses were used to eliminate collinearity and redundancy. Finally, three machine learning algorithms, i.e., Random Forest (RF), Support Vector Machine (SVM), Classification And Regression Tree (CART), were applied and compared to find the best classifier for predicting the damage stage of individual P. gansuensis. Results The confusion matrix of RF achieved the highest overall classification accuracy (86.2%) and the highest Kappa index value (0.804), indicating the potential of using WV-2 imaging to accurately detect damage stages of individual trees. In addition, the canopy color was found to be positively correlated with P. gansuensis’ damage stages. Conclusions A novel method was developed by combining WV-2 and tree physiological index for semi-automatic classification of three damage stages of P. gansuensis infested with ALB. The canopy color was determined as an abnormal phenotype that could be directly assessed using remote-sensing images at the tree level to predict the damage degree. These tools are highly applicable for driving quick and effective measures to reduce damage to pure poplar forests in Gansu Province, China.

Dinosaur Macroevolution and Macroecology

2018 ◽  
Vol 49 (1) ◽  
pp. 379-408 ◽  
Author(s):  
Roger B.J. Benson
Keyword(s):  
Life History ◽  
Body Size ◽  
Reproductive Biology ◽  
Fossil Record ◽  
Structural Diversity ◽  
Body Plan ◽  
Adaptive Landscape ◽  
Species Diversification ◽  
Size Evolution ◽  
Body Size Evolution

Dinosaurs were large-bodied land animals of the Mesozoic that gave rise to birds. They played a fundamental role in structuring Jurassic–Cretaceous ecosystems and had physiology, growth, and reproductive biology unlike those of extant animals. These features have made them targets of theoretical macroecology. Dinosaurs achieved substantial structural diversity, and their fossil record documents the evolutionary assembly of the avian body plan. Phylogeny-based research has allowed new insights into dinosaur macroevolution, including the adaptive landscape of their body size evolution, patterns of species diversification, and the origins of birds and bird-like traits. Nevertheless, much remains unknown due to incompleteness of the fossil record at both local and global scales. This presents major challenges at the frontier of paleobiological research regarding tests of macroecological hypotheses and the effects of dinosaur biology, ecology, and life history on their macroevolution.

Susceptibility of Asian longhorned beetle, Anoplophora glabripennis (Motchulsky) (Coleoptera: Cerambycidae) to entomopathogenic nematodes

2004 ◽  
Vol 30 (2) ◽  
pp. 430-438 ◽  
Author(s):  
Declan J. Fallon ◽  
Leellen F. Solter ◽  
Melody Keena ◽  
Michael McManus ◽  
James R. Cate ◽  
...  
Keyword(s):  
Entomopathogenic Nematodes ◽  
Anoplophora Glabripennis ◽  
Longhorned Beetle ◽  
Asian Longhorned Beetle

THE LIFE HISTORY OF LESTES CONGENER (ODONATA: ZYGOPTERA) ON THE CANADIAN PRAIRIES

1974 ◽  
Vol 106 (4) ◽  
pp. 367-376 ◽  
Author(s):  
W. W. Sawchyn ◽  
C. Gillott
Keyword(s):  
Life History ◽  
Embryonic Development ◽  
Larval Development ◽  
Sexual Maturation ◽  
Low Temperatures ◽  
Canadian Prairies ◽  
History Of

AbstractLestes congener Hagen overwinters in the egg stage. There is a diapause just before blastokinesis, during which the egg is extremely resistant to low temperatures and desiccation. Post-diapause embryonic development can occur near 0 °C but will not take place until the eggs are wetted as the pond habitat fills in the spring. Hatching does not occur until the temperature exceeds about 5 °C and is highly synchronous. Larval development is rapid and is completed in the field in about 50 days. Emergence of the adults also is synchronous. Sexual maturation requires 3 weeks. Oviposition occurs immediately after copulation while the pair are still in tandem. It takes place only in dry stems of Scirpus. Adaptations of L. congener for life under rigorous prairie conditions are discussed.

Tree selection and use by the polyphagous xylophage Anoplophora glabripennis (Coleoptera: Cerambycidae) in Canada

2021 ◽  
Author(s):  
Jean J. Turgeon ◽  
Michael T Smith ◽  
John Pedlar ◽  
Ronald Edward Fournier ◽  
Mary Orr ◽  
...  
Keyword(s):  
High Risk ◽  
Host Selection ◽  
Tree Height ◽  
Anoplophora Glabripennis ◽  
Longhorned Beetle ◽  
Asian Longhorned Beetle ◽  
Risk Of Injury ◽  
Breeding Populations ◽  
Over Time

Two breeding populations of the non-native Asian longhorned beetle (Anoplophora glabripennis Motschulsky), a pest of broadleaf trees in its native China, were discovered in Ontario in 2003 and 2013, respectively. Both populations were eradicated by removing all trees injured by the beetle and all uninjured trees deemed at high risk of injury. We used data collected during this removal to study host selection. Signs of A. glabripennis injury were observed on 732 stems from seven (i.e., Acer, Salix, Populus, Betula, Ulmus, Fraxinus and Tilia) of the 45 tree genera available. Complete beetle development was confirmed on only the first four of these seven genera. Most signs of injury were on the genus Acer and on trees with a diameter at 130 cm above ground ranging between 15 cm and 40 cm. On most trees, the lowest sign of injury was within three meters of the ground or within 40% of tree height. Tree height explained 63% of the variance in the location of the lowest sign of injury. Initial attacks were typically near the middle of the tree and expanded both upward and downward with successive attacks over time. We discuss how these findings could improve survey efforts for A. glabripennis.

Captive Propagation, Reproductive Biology, and Early Life History of the Diamond Darter (Crystallaria cincotta)

2014 ◽  
Vol 172 (1) ◽  
pp. 107-118 ◽  
Author(s):  
Crystal L Ruble ◽  
Patrick L Rakes ◽  
John R Shute ◽  
Stuart A Welsh
Keyword(s):  
Life History ◽  
Reproductive Biology ◽  
Early Life ◽  
Early Life History ◽  
History Of ◽  
Captive Propagation

A Relational Theory of Risk: a Case Study of the Asian Longhorned Beetle Infestation in Worcester, MA

2019 ◽  
Vol 23 (6) ◽  
pp. 781-795 ◽  
Author(s):  
Joey Hersh ◽  
Deborah G. Martin ◽  
Nicholas a. B. Geron ◽  
John Rogan
Keyword(s):  
Relational Theory ◽  
Longhorned Beetle ◽  
Asian Longhorned Beetle
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