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Annual Review of Entomology

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https://read.qxmd.com/read/30629896/bee-viruses-ecology-pathogenicity-and-impacts
#1
Christina M Grozinger, Michelle L Flenniken
Bees-including solitary, social, wild, and managed species-are key pollinators of flowering plant species, including nearly three-quarters of global food crops. Their ecological importance, coupled with increased annual losses of managed honey bees and declines in populations of key wild species, has focused attention on the factors that adversely affect bee health, including viral pathogens. Genomic approaches have dramatically expanded understanding of the diversity of viruses that infect bees, the complexity of their transmission routes-including intergenus transmission-and the diversity of strategies bees have evolved to combat virus infections, with RNA-mediated responses playing a prominent role...
January 7, 2019: Annual Review of Entomology
https://read.qxmd.com/read/30629895/an-unlikely-beginning-a-fortunate-life
#2
Elizabeth A Bernays
Elizabeth A. Bernays grew up in Australia and studied at the University of Queensland before traveling in Europe and teaching high school in London. She later obtained a PhD in entomology at London University. Then, as a British government scientist, she worked in England and in developing countries on a variety of projects concerned with feeding by herbivorous insects and their physiology and behavior. In 1983, she was appointed professor at the University of California, Berkeley, where her research expanded to a variety of topics, all related to the physiology, behavior, and ecology of feeding in insects...
January 7, 2019: Annual Review of Entomology
https://read.qxmd.com/read/30629894/blueberry-ipm-past-successes-and-future-challenges
#3
Cesar Rodriguez-Saona, Charles Vincent, Rufus Isaacs
Blueberry is a crop native to North America with expanding production and consumption worldwide. In the historical regions of production, integrated pest management (IPM) programs have been developed and provided effective control of key insect pests. These have integrated monitoring programs with physical, cultural, biological, behavioral, and chemical controls to meet the intense demands of consumers and modern food systems. Globalization of the blueberry industry has resulted in new pest-crop associations and the introduction of invasive pests into existing and new blueberry-growing areas...
January 7, 2019: Annual Review of Entomology
https://read.qxmd.com/read/30629893/life-and-death-at-the-voltage-sensitive-sodium-channel-evolution-in-response-to-insecticide-use
#4
Jeffrey G Scott
The voltage-sensitive sodium channel (VSSC) is a critical component of the insect nervous system. Pyrethroids and DDT are insecticides that have been widely used, and they kill insects by perturbations of the VSSC. Decades of insecticide use selected for mutations in Vssc that give rise to resistance in almost all pest insects. However, the mutations responsible for the resistance are not always the same, and some unusual patterns have emerged. This review focuses on what pyrethroid/DDT selection has done, in terms of Vssc changes that have occurred, using four well-studied species as examples of the differences that have evolved...
January 7, 2019: Annual Review of Entomology
https://read.qxmd.com/read/30629892/water-beetles-as-models-in-ecology-and-evolution
#5
David T Bilton, Ignacio Ribera, Andrew Edward Z Short
Beetles have colonized water many times during their history, with some of these events involving extensive evolutionary radiations and multiple transitions between land and water. With over 13,000 described species, they are one of the most diverse macroinvertebrate groups in most nonmarine aquatic habitats and occur on all continents except Antarctica. A combination of wide geographical and ecological range and relatively accessible taxonomy makes these insects an excellent model system for addressing a variety of questions in ecology and evolution...
January 7, 2019: Annual Review of Entomology
https://read.qxmd.com/read/30629891/preface
#6
Angela E Douglas
No abstract text is available yet for this article.
January 7, 2019: Annual Review of Entomology
https://read.qxmd.com/read/30354695/phylogeography-of-ticks-acari-ixodida
#7
Lorenza Beati, Hans Klompen
Improved understanding of tick phylogeny has allowed testing of some biogeographical patterns. On the basis of both literature data and a meta-analysis of available sequence data, there is strong support for a Gondwanan origin of Ixodidae, and probably Ixodida. A particularly strong pattern is observed for the genus Amblyomma, which appears to have originated in Antarctica/southern South America, with subsequent dispersal to Australia. The endemic Australian lineages of Ixodidae (no other continent has such a pattern) appear to result from separate dispersal events, probably from Antarctica...
January 7, 2019: Annual Review of Entomology
https://read.qxmd.com/read/30285490/epigenetics-in-insects-genome-regulation-and-the-generation-of-phenotypic-diversity
#8
Karl M Glastad, Brendan G Hunt, Michael A D Goodisman
Epigenetic inheritance is fundamentally important to cellular differentiation and developmental plasticity. In this review, we provide an introduction to the field of molecular epigenetics in insects. Epigenetic information is passed across cell divisions through the methylation of DNA, the modification of histone proteins, and the activity of noncoding RNAs. Much of our knowledge of insect epigenetics has been gleaned from a few model species. However, more studies of epigenetic information in traditionally nonmodel taxa will help advance our understanding of the developmental and evolutionary significance of epigenetic inheritance in insects...
January 7, 2019: Annual Review of Entomology
https://read.qxmd.com/read/30372159/invasive-cereal-aphids-of-north-america-ecology-and-pest-management
#9
Michael J Brewer, Frank B Peairs, Norman C Elliott
Aphid invasions of North American cereal crops generally have started with colonization of a new region or crop, followed by range expansion and outbreaks that vary in frequency and scale owing to geographically variable influences. To improve understanding of this process and management, we compare the invasion ecology of and management response to three cereal aphids: sugarcane aphid, Russian wheat aphid, and greenbug. The region exploited is determined primarily by climate and host plant availability. Once an area is permanently or annually colonized, outbreak intensity is also affected by natural enemies and managed inputs, such as aphid-resistant cultivars and insecticides...
October 29, 2018: Annual Review of Entomology
https://read.qxmd.com/read/30332295/systematics-phylogeny-and-evolution-of-braconid-wasps-30-years-of-progress
#10
Xue-Xin Chen, Cornelis van Achterberg
The parasitoid wasp family Braconidae is likely the second-most speciesrich family in the animal kingdom. Braconid wasps are widely distributed and often encountered. They constitute one of the principal groups of natural enemies of phytophagous insects, of which many are serious pest species. The enormous biological diversification of braconid wasps has led to many homoplasies, which contributed widely to instabilities in historical classifications. Recent studies using combinations of genetic markers or total mitochondrial genomes allow for better founded groupings and will ultimately lead to a stable classification...
October 17, 2018: Annual Review of Entomology
https://read.qxmd.com/read/30312555/molecular-mechanisms-of-wing-polymorphism-in-insects
#11
Chuan-Xi Zhang, Jennifer A Brisson, Hai-Jun Xu
Many insects are capable of developing into either long-winged or shortwinged (or wingless) morphs, which enables them to rapidly match heterogeneous environments. Thus, the wing polymorphism is an adaptation at the root of their ecological success. Wing polymorphism is orchestrated at various levels, starting with the insect's perception of environmental cues, then signal transduction and signal execution, and ultimately the transmitting of signals into physiological adaption in accordance with the particular morph produced...
October 12, 2018: Annual Review of Entomology
https://read.qxmd.com/read/30312554/nonreproductive-effects-of-insect-parasitoids-on-their-hosts
#12
Paul K Abram, Jacques Brodeur, Alberto Urbaneja, Alejandro Tena
The main modes of action of insect parasitoids are considered to be killing their hosts with egg laying followed by offspring development (reproductive mortality), and adults feeding on hosts directly (host feeding). However, parasitoids can also negatively affect their hosts in ways that do not contribute to current or future parasitoid reproduction (nonreproductive effects). Outcomes of nonreproductive effects for hosts can include death, altered behavior, altered reproduction, and altered development. On the basis of these outcomes and the variety of associated mechanisms, we categorize nonreproductive effects into (a) nonconsumptive effects, (b) mutilation, (c) pseudoparasitism, (d) immune defense costs, and (e) aborted parasitism...
October 12, 2018: Annual Review of Entomology
https://read.qxmd.com/read/30312553/fat-body-biology-in-the-last-decade
#13
Sheng Li, Xiaoqiang Yu, Qili Feng
The insect fat body is analogous to vertebrate adipose tissue and liver. In this review, the new and exciting advancements made in fat body biology in the last decade are summarized. Controlled by hormonal and nutritional signals, insect fat body cells undergo mitosis during embryogenesis, endoreplication during the larval stages, and remodeling during metamorphosis and regulate reproduction in adults. Fat body tissues are major sites for nutrient storage, energy metabolism, innate immunity, and detoxification...
October 12, 2018: Annual Review of Entomology
https://read.qxmd.com/read/30312552/molecular-evolution-of-the-major-arthropod-chemoreceptor-gene-families
#14
Hugh M Robertson
The evolutionary origins of the three major families of chemoreceptors in arthropods-the odorant receptor (OR), gustatory receptor (GR), and ionotropic receptor (IR) families-occurred at the base of the Insecta, Animalia, and Protostomia, respectively. Comparison of receptor family sizes across arthropods reveals a generally positive correlation with their widely disparate complexity of chemical ecology. Closely related species reveal the ongoing processes of gene family evolution, including gene duplication, divergence, pseudogenization, and loss, that mediate these larger patterns...
October 12, 2018: Annual Review of Entomology
https://read.qxmd.com/read/30296859/movement-ecology-of-pest-helicoverpa-implications-for-ongoing-spread
#15
Christopher M Jones, Hazel Parry, Wee Tek Tay, Don R Reynolds, Jason W Chapman
The recent introduction and spread of Helicoverpa armigera throughout South America highlights the invasiveness and adaptability of moths in the Helicoverpa genus. Long-range movement in three key members, H. armigera, H. zea, and H. punctigera, occurs by migration and international trade. These movements facilitate high population admixture and genetic diversity, with important economic, biosecurity, and control implications in today's agricultural landscape. This is particularly true for the spread of resistance alleles to transgenic crops expressing Bacillus thuringiensis (Bt) toxins that are planted over vast areas to suppress Helicoverpa spp...
October 8, 2018: Annual Review of Entomology
https://read.qxmd.com/read/30296858/movement-and-demography-of-at-risk-butterflies-building-blocks-for-conservation
#16
Cheryl B Schultz, Nick M Haddad, Erica H Henry, Elizabeth E Crone
The number of insect species at risk of population decline and extinction is increasing rapidly. Yet we know almost nothing about the ecology of these species, except for at-risk butterflies. A growing body of literature shows how butterfly vital rates, including demography and movement, are essential for guiding conservation and recovery. History has shown us that without these data, conservation decisions often weaken, rather than enhance, population viability. This is especially true in changing landscapes...
October 8, 2018: Annual Review of Entomology
https://read.qxmd.com/read/30285491/biology-and-control-of-the-khapra-beetle-trogoderma-granarium-a-major-quarantine-threat-to-global-food-security
#17
Christos G Athanassiou, Thomas W Phillips, Waqas Wakil
The khapra beetle, Trogoderma granarium, is a voracious feeder of stored products and is considered one of the most important quarantine pests globally. Its ability to survive for long periods under extreme conditions facilitates its spread through international commerce, which has led to invasions of new geographic regions. The khapra beetle is an important quarantine pest for many countries, including the major wheat-producing countries the United States, Canada, Russia, and Australia, and has been classified as one of the 100 worst invasive species worldwide...
October 4, 2018: Annual Review of Entomology
https://read.qxmd.com/read/30272993/vectors-of-babesiosis
#18
Jeremy S Gray, Agustín Estrada-Peña, Annetta Zintl
Babesiosis, caused by piroplasmid protozoans in the genus Babesia, is arguably the most important vector-borne disease of livestock and companion animals and is growing in importance as a zoonosis. Ixodid ticks were identified as vectors more than a hundred years ago, but the particular tick species transmitting some significant pathogens are still unknown. Moreover, it is only recently that the complexity of the pathogen-tick relationship has been revealed as a result of studies enabled by gene expression and RNA interference methodology...
October 1, 2018: Annual Review of Entomology
https://read.qxmd.com/read/30256668/invasion-success-and-management-strategies-for-social-vespula-wasps
#19
Philip J Lester, Jacqueline R Beggs
Three species of Vespula have become invasive in Australia, Hawai'i, New Zealand, and North and South America and continue to spread. These social wasp species can achieve high nest densities, and their behavioral plasticity has led to substantial impacts on recipient communities. Ecologically, they affect all trophic levels, restructuring communities and altering resource flows. Economically, their main negative effect is associated with pollination and the apicultural industry. Climate change is likely to exacerbate their impacts in many regions...
September 26, 2018: Annual Review of Entomology
https://read.qxmd.com/read/30256667/the-ecology-of-collective-behavior-in-ants
#20
Deborah M Gordon
Nest choice in Temnothorax spp.; task allocation and the regulation of activity in Pheidole dentata, Pogonomyrmex barbatus, and Atta spp.; and trail networks in Monomorium pharaonis and Cephalotes goniodontus all provide examples of correspondences between the dynamics of the environment and the dynamics of collective behavior. Some important aspects of the dynamics of the environment include stability, the threat of rupture or disturbance, the ratio of inflow and outflow of resources or energy, and the distribution of resources...
September 26, 2018: Annual Review of Entomology
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