keyword
MENU ▼
Read by QxMD icon Read
search

Arthropod

keyword
https://www.readbyqxmd.com/read/28938083/how-many-species-of-insects-and-other-terrestrial-arthropods-are-there-on-earth
#1
Nigel E Stork
In the last decade, new methods of estimating global species richness have been developed and existing ones improved through the use of more appropriate statistical tools and new data. Taking the mean of most of these new estimates indicates that globally there are approximately 1.5 million, 5.5 million, and 7 million species of beetles, insects, and terrestrial arthropods, respectively. Previous estimates of 30 million species or more based on the host specificity of insects to plants now seem extremely unlikely...
September 22, 2017: Annual Review of Entomology
https://www.readbyqxmd.com/read/28937651/perennial-grass-and-native-wildflowers-a-synergistic-approach-to-habitat-management
#2
Shereen S Xavier, Dawn M Olson, Alisa W Coffin, Timothy C Strickland, Jason M Schmidt
Marginal agricultural land provides opportunities to diversify landscapes by producing biomass for biofuel, and through floral provisioning that enhances arthropod-mediated ecosystem service delivery. We examined the effects of local spatial context (adjacent to woodland or agriculture) and irrigation (irrigation or no irrigation) on wildflower bloom and visitation by arthropods in a biofeedstocks-wildflower habitat buffer design. Twenty habitat buffer plots were established containing a subplot of Napier grass (Pennisetum perpureum Schumach) for biofeedstock, three commercial wildflower mix subplots, and a control subplot containing spontaneous weeds...
September 22, 2017: Insects
https://www.readbyqxmd.com/read/28935556/altitudinal-variation-and-bio-climatic-variables-influencing-the-potential-distribution-of-culicoides-orientalis-macfie-1932-suspected-vector-of-bluetongue-virus-across-the-north-eastern-himalayan-belt-of-sikkim
#3
Emon Mukhopadhyay, Surajit Hazra, Goutam Kumar Saha, Dhriti Banerjee
Culicoides orientalis was first recorded from Sikkim, in the year 1963, but no evidence based disease outbreak were available. In the last 50 years, 260 Bluetongue disease outbreaks caused by Culicoides species have been evidenced from India. Moreover, in recent years with increase of average temperature worldwide and increase in longevity of arthropod vectors like Culicoides along with a geographical range shift to new suitable warmer regions has increased the potentiality of vector borne disease outbreak throughout the world...
September 18, 2017: Acta Tropica
https://www.readbyqxmd.com/read/28934290/the-oldest-known-digestive-system-consisting-of-both-paired-digestive-glands-and-a-crop-from-exceptionally-preserved-trilobites-of-the-guanshan-biota-early-cambrian-china
#4
Melanie J Hopkins, Feiyang Chen, Shixue Hu, Zhifei Zhang
The early Cambrian Guanshan biota of eastern Yunnan, China, contains exceptionally preserved animals and algae. Most diverse and abundant are the arthropods, of which there are at least 11 species of trilobites represented by numerous specimens. Many trilobite specimens show soft-body preservation via iron oxide pseudomorphs of pyrite replacement. Here we describe digestive structures from two species of trilobite, Palaeolenus lantenoisi and Redlichia mansuyi. Multiple specimens of both species contain the preserved remains of an expanded stomach region (a "crop") under the glabella, a structure which has not been observed in trilobites this old, despite numerous examples of trilobite gut traces from other Cambrian Lagerstätten...
2017: PloS One
https://www.readbyqxmd.com/read/28932950/meteorological-factors-affecting-seroconversion-of-akabane-disease-in-sentinel-calves-in-the-subtropical-okinawa-islands-of-japan
#5
Yoko Hayama, Tohru Yanase, Moemi Suzuki, Kazuhiko Unten, Hisayuki Tomochi, Mayu Kakehi, Yukina Shono, Takehisa Yamamoto, Sota Kobayashi, Kiyokazu Murai, Toshiyuki Tsutsui
Akabane virus, the pathogen-causing Akabane disease, is an arthropod-borne virus (arbovirus) transmitted by the Culicoides biting midge. A nationwide serological surveillance program for bovine arboviral diseases, including Akabane disease, has been established in Japan to monitor the circulation of arboviruses by targeting sentinel calves. Okinawa, which is located in the southwestern-most region of Japan, is a high-risk area for incursion of arboviruses. The aim of the present study was to identify the meteorological factors related to farm-level seroconversion of Akabane virus by analyzing the serological surveillance data for sentinel calves collected in Okinawa between 2007 and 2015...
September 20, 2017: Tropical Animal Health and Production
https://www.readbyqxmd.com/read/28932924/when-gis-zooms-in-spatio-genetic-maps-of-multipaternity-in-armadillidium-vulgare
#6
Nicolas Bech, Charlotte Depeux, Sylvine Durand, Catherine Debenest, Alexandra Lafitte, Sophie Beltran-Bech
Geographic information system (GIS) tools are designed to illustrate, analyse and integrate geographic or spatial data, usually on a macroscopic scale. By contrast, genetic tools focus on a microscopic scale. Because in reality, landscapes have no predefined scale, our original study aims to develop a new approach, combining both cartographic and genetic approaches to explore microscopic landscapes. For this, we focused on Armadillidium vulgare, a terrestrial isopod model in which evolutionary pressures imposed by terrestrial life have led to the development of internal fertilisation and, consequently, to associated physiological changes...
September 20, 2017: Genetica
https://www.readbyqxmd.com/read/28932198/progress-and-prospects-of-crispr-cas-systems-in-insects-and-other-arthropods
#7
REVIEW
Dan Sun, Zhaojiang Guo, Yong Liu, Youjun Zhang
Clustered regularly interspaced short palindromic repeats (CRISPR) and the CRISPR-associated gene Cas9 represent an invaluable system for the precise editing of genes in diverse species. The CRISPR/Cas9 system is an adaptive mechanism that enables bacteria and archaeal species to resist invading viruses and phages or plasmids. Compared with zinc finger nucleases and transcription activator-like effector nucleases, the CRISPR/Cas9 system has the advantage of requiring less time and effort. This efficient technology has been used in many species, including diverse arthropods that are relevant to agriculture, forestry, fisheries, and public health; however, there is no review that systematically summarizes its successful application in the editing of both insect and non-insect arthropod genomes...
2017: Frontiers in Physiology
https://www.readbyqxmd.com/read/28930847/guillain-barr%C3%A3-like-axonal-polyneuropathy-associated-with-toscana-virus-infection-a-case-report
#8
Eugenia Rota, Nicola Morelli, Paolo Immovilli, Paola De Mitri, Donata Guidetti
RATIONALE: Numerous cases of post-infectious Guillain-Barré syndrome (GBS) have been reported in the literature. Toscana virus (TOSV) is an arthropod-borne emerging pathogen in the Mediterranean area. PATIENT CONCERNS: A 40-year-old male patient was admitted to hospital for acute facial weakness, associated to numbness paraesthesias at lower and upper limbs. The neurological examination revealed facial diplegia and reduced tendon reflexes. The nerve conduction studies documented an acute motor and sensory axonal neuropathy (AMSAN); the lumbar puncture detected albuminocytologic dissociation...
September 2017: Medicine (Baltimore)
https://www.readbyqxmd.com/read/28930586/drug-repurposing-approaches-to-fight-dengue-virus-infection-and-related-diseases
#9
Lorenzo Botta, Mirko Rivara, Valentina Zuliani, Marco Radi
Dengue is a mosquito-borne viral disease caused by four antigenically distinct serotypes of Dengue Virus (DENV), namely DENV1-4 and is currently considered the most important arthropod-born viral disease in the world. An effective antiviral therapy to treat Dengue Virus infection is still missing and a number of replicative cycle inhibitors are currently under study. Considering the rapid spreading of DENV and the common timeframe required for bringing a new drug on the market, the repurposing of approved drugs used for different diseases to identify novel inhibitors of this pathogen represents an attractive approach for a rapid therapeutic intervention...
January 1, 2018: Frontiers in Bioscience (Landmark Edition)
https://www.readbyqxmd.com/read/28930157/getting-more-power-from-your-flowers-multi-functional-flower-strips-enhance-pollinators-and-pest-control-agents-in-apple-orchards
#10
Alistair John Campbell, Andrew Wilby, Peter Sutton, Felix Wäckers
Flower strips are commonly recommended to boost biodiversity and multiple ecosystem services (e.g., pollination and pest control) on farmland. However, significant knowledge gaps remain regards the extent to which they deliver on these aims. Here, we tested the efficacy of flower strips that targeted different subsets of beneficial arthropods (pollinators and natural enemies) and their ecosystem services in cider apple orchards. Treatments included mixes that specifically targeted: (1) pollinators ('concealed-nectar plants'); (2) natural enemies ('open-nectar plants'); or (3) both groups concurrently (i...
September 20, 2017: Insects
https://www.readbyqxmd.com/read/28929088/microbial-invasion-vs-tick-immune-regulation
#11
REVIEW
Daniel E Sonenshine, Kevin R Macaluso
Ticks transmit a greater variety of pathogenic agents that cause disease in humans and animals than any other haematophagous arthropod, including Lyme disease, Rocky Mountain spotted fever, human granulocytic anaplasmosis, babesiosis, tick-borne encephalitis, Crimean Congo haemorhagic fever, and many others (Gulia-Nuss et al., 2016). Although diverse explanations have been proposed to explain their remarkable vectorial capacity, among the most important are their blood feeding habit, their long term off-host survival, the diverse array of bioactive molecules that disrupt the host's natural hemostatic mechanisms, facilitate blood flow, pain inhibitors, and minimize inflammation to prevent immune rejection (Hajdušek et al...
2017: Frontiers in Cellular and Infection Microbiology
https://www.readbyqxmd.com/read/28927433/modelling-the-current-distribution-and-predicted-spread-of-the-flea-species-ctenocephalides-felis-infesting-outdoor-dogs-in-spain
#12
Rosa Gálvez, Vicenzo Musella, Miguel A Descalzo, Ana Montoya, Rocío Checa, Valentina Marino, Oihane Martín, Giuseppe Cringoli, Laura Rinaldi, Guadalupe Miró
BACKGROUND: The cat flea, Ctenocephalides felis, is the most prevalent flea species detected on dogs and cats in Europe and other world regions. The status of flea infestation today is an evident public health concern because of their cosmopolitan distribution and the flea-borne diseases transmission. This study determines the spatial distribution of the cat flea C. felis infesting dogs in Spain. Using geospatial tools, models were constructed based on entomological data collected from dogs during the period 2013-2015...
September 19, 2017: Parasites & Vectors
https://www.readbyqxmd.com/read/28927427/first-molecular-detection-and-characterization-of-zoonotic-bartonella-species-in-fleas-infesting-domestic-animals-in-tunisia
#13
Saba Zouari, Fatma Khrouf, Youmna M'ghirbi, Ali Bouattour
BACKGROUND: Bartonellosis is an emerging vector-borne disease caused by different intracellular bacteria of the genus Bartonella (Rhizobiales: Bartonellaceae) that is transmitted primarily by blood-sucking arthropods such as sandflies, ticks and fleas. In Tunisia, there are no data available identifying the vectors of Bartonella spp. In our research, we used molecular methods to detect and characterize Bartonella species circulating in fleas collected from domestic animals in several of the country's bioclimatic areas...
September 19, 2017: Parasites & Vectors
https://www.readbyqxmd.com/read/28926817/safety-of-bacillus-thuringiensis-cry1c-protein-for-daphnia-magna-based-on-different-functional-traits
#14
Yi Chen, Yan Yang, Haojun Zhu, Jörg Romeis, Yunhe Li, Yufa Peng, Xiuping Chen
Cry1C is a Bacillus thuringiensis (Bt) insecticidal protein and it can be produced by transgenic rice lines developed in China. Cladocera species are common aquatic arthropods that may be exposed to insecticidal proteins produced in Bt-transgenic plants through ingestion of pollen or crop residues in water. As the cladoceran Daphnia magna plays an important role in the aquatic food chain, it is important to assess the possible effects of Bt crops to this species. To evaluate the safety of the Cry1C protein for D...
September 16, 2017: Ecotoxicology and Environmental Safety
https://www.readbyqxmd.com/read/28926155/idna-screening-disease-vectors-as-vertebrate-samplers
#15
Arthur Kocher, Benoit De Thoisy, François Catzeflis, Sophie Valiere, Anne-Laure Bañuls, Jérôme Murienne
In the current context of global change and human-induced biodiversity decline, there is an urgent need for developing sampling approaches able to accurately describe the state of biodiversity. Traditional surveys of vertebrate fauna involve time-consuming and skill-demanding field methods. Recently, the use of DNA derived from invertebrate parasites (leeches and blowflies) was suggested as a new tool for vertebrate diversity assessment. Blood meal analyses of arthropod disease vectors have long been performed to describe their feeding behaviour, for epidemiological purposes...
September 19, 2017: Molecular Ecology
https://www.readbyqxmd.com/read/28925338/foraging-behaviour-of-the-exotic-wasp-vespula-germanica-hymenoptera-vespidae-on-a-native-caterpillar-defoliator
#16
A L Pietrantuono, S Moreyra, M Lozada
Vespula germanica is a social wasp and an opportunistic predator. While foraging, these wasps learn and integrate different kinds of cues. They have successfully invaded many parts of the world, including native Nothofagus and Lophozonia forests located in the Andean-Patagonian region, where they forage on native arthropods. Perzelia arda, a lepidopteron defoliator of Lophozonia obliqua, uses the foliage to hide in and feed on. The purpose of this work is to study whether V. germanica use olfactory cues when foraging on P...
September 19, 2017: Bulletin of Entomological Research
https://www.readbyqxmd.com/read/28924518/clinical-spectrum-of-chikungunya-in-pakistan
#17
Syeda Naqvi, Shehroz Bashir, Chintan Rupareliya, Abdullah Shams, Pirthvi Raj Giyanwani, Zeeshan Ali, Faiza Qamar, Vijesh Kumar, Vikash Talib
Background Chikungunya fever is a pandemic disease caused by an arthropod-borne chikungunya virus (CHIKV). The virus spreads through mosquitoes. This mosquito induced viral illness is clinically suspected on symptoms from fever and severe polyarthralgia. The recent outbreak of chikungunya was reported in November 2016 in the metropolitan city Karachi, Pakistan. We emphasis on the awareness of the etiology and vector control to prevent serious consequences. Method A total number of 1275 patients were included in this cross-sectional study...
July 6, 2017: Curēus
https://www.readbyqxmd.com/read/28921711/foxp-expression-identifies-a-kenyon-cell-subtype-in-the-honeybee-mushroom-bodies-linking-them-to-fruitfly-%C3%AE-%C3%AE-c-neurons
#18
Adriana Schatton, Constance Scharff
The arthropod mushroom bodies (MB) are a higher order sensory integration center. In insects, they play a central role in associative olfactory learning and memory. In Drosophila melanogaster (Dm), the highly ordered connectivity of heterogeneous MB neuron populations has been mapped using sophisticated molecular genetic and anatomical techniques. The MB-core subpopulation was recently shown to express the transcription factor FoxP with relevance for decision-making. Here we report the development and adult distribution of a FoxP-expressing neuron population in the MB of honeybees (Apis mellifera, Am) using in situ hybridization and a custom-made antiserum...
September 16, 2017: European Journal of Neuroscience
https://www.readbyqxmd.com/read/28919885/trypanosoma-cruzi-evades-the-complement-system-as-an-efficient-strategy-to-survive-in-the-mammalian-host-the-specific-roles-of-host-parasite-molecules-and-trypanosoma-cruzi-calreticulin
#19
REVIEW
Galia Ramírez-Toloza, Arturo Ferreira
American Trypanosomiasis is an important neglected reemerging tropical parasitism, infecting about 8 million people worldwide. Its agent, Trypanosoma cruzi, exhibits multiple mechanisms to evade the host immune response and infect host cells. An important immune evasion strategy of T. cruzi infective stages is its capacity to inhibit the complement system activation on the parasite surface, avoiding opsonizing, immune stimulating and lytic effects. Epimastigotes, the non-infective form of the parasite, present in triatomine arthropod vectors, are highly susceptible to complement-mediated lysis while trypomastigotes, the infective form, present in host bloodstream, are resistant...
2017: Frontiers in Microbiology
https://www.readbyqxmd.com/read/28919552/accurate-identification-of-anopheles-gambiae-giles-trophic-preferences-by-maldi-tof-ms
#20
Sirama Niare, Fatalmoudou Tandina, Bernard Davoust, Ogobara Doumbo, Didier Raoult, Philippe Parola, Lionel Almeras
The determination of the trophic preferences of the Anopheles gambiae Giles (Diptera: Culicidae) is a decisive parameter for the monitoring and the prevention of malaria risk transmission. Currently, arthropod blood feeding sources are identified using immunological or molecular biology traditional techniques. Despite the effectiveness of these methods, they present several limitations, and notably, they are time-consuming and costly techniques. A recent study demonstrated that MALDI-TOF MS could be a useful tool for the identification of blood meal origins in freshly engorged mosquitoes...
September 15, 2017: Infection, Genetics and Evolution
keyword
keyword
11534
1
2
Fetch more papers »
Fetching more papers... Fetching...
Read by QxMD. Sign in or create an account to discover new knowledge that matter to you.
Remove bar
Read by QxMD icon Read
×

Search Tips

Use Boolean operators: AND/OR

diabetic AND foot
diabetes OR diabetic

Exclude a word using the 'minus' sign

Virchow -triad

Use Parentheses

water AND (cup OR glass)

Add an asterisk (*) at end of a word to include word stems

Neuro* will search for Neurology, Neuroscientist, Neurological, and so on

Use quotes to search for an exact phrase

"primary prevention of cancer"
(heart or cardiac or cardio*) AND arrest -"American Heart Association"