scholarly journals Genomewide transcriptional signatures of migratory flight activity in a globally invasive insect pest

2015 ◽  
Vol 24 (19) ◽  
pp. 4901-4911 ◽  
Author(s):  
Christopher M. Jones ◽  
Alexie Papanicolaou ◽  
George K. Mironidis ◽  
John Vontas ◽  
Yihua Yang ◽  
...  
Keyword(s):  
Insect Pest ◽  
Flight Activity ◽  
Invasive Insect ◽  
Migratory Flight

scholarly journals Predicting Insect Invasiveness With Whole-genome Sequencing Data

2020 ◽  
Author(s):  
Cong Huang ◽  
Nianwan Yang ◽  
Shuping Wang ◽  
Xiaodan Fan ◽  
Cong Pian ◽  
...  
Keyword(s):  
Insect Pest ◽  
Genomic Analysis ◽  
Gene Families ◽  
Insect Species ◽  
Whole Genome Sequencing Data ◽  
Comparative Genomic ◽  
Nucleic Acid Metabolism ◽  
Sequencing Data ◽  
Invasive Insects ◽  
Invasive Insect

Abstract Background Invasive alien insects threaten agriculture, biodiversity, and human livelihoods globally. Unfortunately, insect invasiveness still cannot be reliably predicted. Empirical policies of insect pest quarantine and inspection are mainly designed against species that are already problematic. Results We conducted a comparative genomic analysis of 37 invasive insect species and six non-invasive insect species, showing that the gene families associated with defense, protein and nucleic acid metabolism, chemosensory function, and transcriptional regulation were significantly expanded in invasive insects, suggesting that enhanced abilities in self-protection, nutrition exploitation, and locating food or mates are intrinsic features conferring invasiveness in insects. By using these intrinsic genome features, we proposed an invasiveness index and estimated the invasiveness of 99 other insect species with genome data, classifying them as highly, moderately, or minimally invasive. Insects possessing all these aforementioned enhanced abilities are predicted to be highly invasive, and vice versa. Next, a logistic-regression classifier was trained to predict insect invasiveness, achieving 93.2% accuracy. Conclusions We present evidence that several traits may confer invasiveness in insects and these features can be used to predict insect invasiveness accurately, and we quantify insect invasiveness with an invasiveness index.

scholarly journals Invasive Insects: Management Methods Explored

2019 ◽  
Vol 19 (5) ◽  
Author(s):  
Gemma M McLaughlin ◽  
Peter K Dearden
Keyword(s):  
Native Species ◽  
Resource Competition ◽  
Insect Pest ◽  
Unintended Consequences ◽  
Future Research ◽  
Agricultural Crops ◽  
New Techniques ◽  
Invasive Insects ◽  
Invasive Insect ◽  
Insect Pest Control

Abstract Invasive insect species can act as a plague across the globe, capable of vast expansion and rapid, proliferate reproduction. The spread of pathogens of serious diseases such as malaria and Zika virus and damages to agricultural crops number some of the afflictions invasive insects provide to humans alone. Additionally, an escape from predators can fail to keep invasive insects in check, providing potential threats such as extra resource competition to native species when insects invade. A variety of methods are employed to combat these invasive species, each with their own varying levels of success. Here, we explore the more traditional methods of invasive insect pest control, such as pesticides and biological control. In lieu of several unintended consequences resulting from such practices, we suggest some should be abandoned. We evaluate the potential of new techniques, in particular, those with a genetic component, regarding the costs, benefits and possible consequences of implementing them. And finally, we consider which techniques should be the focus of future research, if we truly wish to manage or even eradicate invasive insects in their introduced lands.

scholarly journals Influence of seasonal and climatic variables on coffee berry borer (Hypothenemus hampei Ferrari) flight activity in Hawaii

PLoS ONE ◽  
2021 ◽  
Vol 16 (12) ◽  
pp. e0257861
Author(s):  
Melissa A. Johnson ◽  
Nicholas C. Manoukis
Keyword(s):  
Mixed Model ◽  
Prediction Models ◽  
Insect Pest ◽  
Sampling Period ◽  
Flight Activity ◽  
Hypothenemus Hampei ◽  
Coffee Berry ◽  
Weather Variables ◽  
Coffee Berry Borer ◽  
Starting Point

Coffee berry borer (CBB, Hypothenemus hampei Ferrari) is the most serious insect pest of coffee worldwide, yet little is known about the effect that weather variables have on CBB flight activity. We sampled flying female CBB adults bi-weekly over a three-year period using red funnel traps baited with an alcohol lure at 14 commercial coffee farms on Hawaii Island to characterize seasonal phenology and the relationship between flight activity and five weather variables. We captured almost 5 million scolytid beetles during the sampling period, with 81–93% of the trap catch comprised of CBB. Of the captured non-target beetles, the majority were tropical nut borer, black twig borer and a species of Cryphalus. Two major flight events were consistent across all three years: an initial emergence from January-April that coincided with early fruit development and a second flight during the harvest season from September-December. A generalized additive mixed model (GAMM) revealed that mean daily air temperature had a highly significant positive correlation with CBB flight; most flight events occurred between 20–26°C. Mean daily solar radiation also had a significant positive relationship with flight. Flight was positively correlated with maximum daily relative humidity at values below ~94%, and cumulative rainfall up to 100 mm; flight was also positively correlated with maximum daily wind speeds up to ~2.5 m/s, after which activity declined. Our findings provide important insight into CBB flight patterns across a highly variable landscape and can serve as a starting point for the development of flight prediction models.

scholarly journals Tissue-Specific Transcriptomics of the Exotic Invasive Insect Pest Emerald Ash Borer (Agrilus planipennis)

PLoS ONE ◽  
2010 ◽  
Vol 5 (10) ◽  
pp. e13708 ◽  
Author(s):  
Omprakash Mittapalli ◽  
Xiaodong Bai ◽  
Praveen Mamidala ◽  
Swapna Priya Rajarapu ◽  
Pierluigi Bonello ◽  
...  
Keyword(s):  
Insect Pest ◽  
Emerald Ash Borer ◽  
Agrilus Planipennis ◽  
Tissue Specific ◽  
Invasive Insect ◽  
Exotic Invasive

scholarly journals Modeling Migratory Flight in the Spruce Budworm: Circadian Rhythm

Forests ◽  
2019 ◽  
Vol 10 (10) ◽  
pp. 877 ◽  
Author(s):  
Régnière ◽  
Garcia ◽  
Saint-Amant
Keyword(s):  
Boundary Layer ◽  
Circadian Rhythm ◽  
Choristoneura Fumiferana ◽  
Spruce Budworm ◽  
Flight Activity ◽  
Boundary Layer Transition ◽  
Layer Transition ◽  
Migratory Flight ◽  
Temperature Conditions ◽  
Mass Migration

The crepuscular (evening) circadian rhythm of adult spruce budworm (Choristoneura fumiferana (Clem.)) flight activity under the influence of changing evening temperatures is described using a mathematical model. This description is intended for inclusion in a comprehensive model of spruce budworm flight activity leading to the simulation of mass migration events. The model for the temporal likelihood of moth emigration flight is calibrated using numerous observations of flight activity in the moth’s natural environment. Results indicate an accurate description of moth evening flight activity using a temporal function covering the period around sunset and modified by evening temperature conditions. The moth’s crepuscular flight activity is typically coincident with the evening transition of the atmospheric boundary layer from turbulent daytime to stable nocturnal conditions. The possible interactions between moth flight activity and the evening boundary layer transition, with favorable wind and temperature conditions leading to massive and potentially successful migration events, as well as the potential impact of climate change on this process, are discussed.

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