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https://www.readbyqxmd.com/read/28527250/-risk-of-transmission-of-chagas-disease-by-intrusion-of-triatomines-and-wild-mammals-in-bucaramanga-santander-colombia
#1
Marlene Reyes, Ángela Torres, Lyda Esteban, Mónica Flórez, Víctor Manuel Angulo
INTRODUCTION: Notice of triatomines in dwellings of some neighborhoods in Bucaramanga motivated the realization of this study.Objetive: To evaluate the intrusion of triatomines and mammals, as well as some risk factors in urban dwellings. MATERIALS AND METHODS: Triatomines were collected in a neighborhood in Bucaramanga, Santander, on a monthly basis during one year with participation of the community. Collection included manual search in lamp posts, use of light traps, animal bait, and chemical attractants in nearby forests...
January 24, 2017: Biomédica: Revista del Instituto Nacional de Salud
https://www.readbyqxmd.com/read/28520950/a-novel-economical-way-to-assess-virulence-in-field-populations-of-hessian-fly-diptera-cecidomyiidae-utilizing-wheat-resistance-gene-h13-as-a-model
#2
Alisha J Johnson, Hossam E M Abdel Moniem, Kathy L Flanders, G David Buntin, Francis P F Reay-Jones, Dominic Reisig, Jeffery J Stuart, Subhashree Subramanyam, Richard H Shukle, Brandon J Schemerhorn
Mayetiola destructor (Say) is a serious pest of wheat, Triticum aestivum L., in North America, North Africa, and Central Asia. Singly deployed resistance genes in wheat cultivars have provided effective management of Hessian fly populations for >50 yr. Thirty-five H genes have been documented. Defense mediated by the H gene constitutes strong selection on the Hessian fly population, killing 100% of larvae. A mutation in a matching Hessian fly avirulence gene confers virulence to the H gene, leading to survival on the resistant plant...
May 17, 2017: Journal of Economic Entomology
https://www.readbyqxmd.com/read/28512035/the-predatory-behavior-of-the-neotropical-social-wasp-polybia-rejecta
#3
Alain Dejean, Héctor Rodríguez-Pérez, James M Carpenter, Frédéric Azémar, Bruno Corbara
We experimentally studied the predatory behavior of Polybia rejecta (Vespidae, Polistinae, Epiponini) towards 2-88 mm-long insects attracted to a UV light trap. Foragers, which began to hunt at 6:30, selected 4-14 mm-long prey insects. Prey detection by sight by hovering wasps was confirmed using decoys. After the wasps landed and walked along a sinuous path, prey were detected by contact or from a distance (1-3cm). This was followed by seizure, stinging (contrarily to most other known cases), prey manipulation and retrieval...
May 13, 2017: Behavioural Processes
https://www.readbyqxmd.com/read/28505274/migration-analysis-of-sogatella-furcifera-hemiptera-delphacidae-in-the-northeastern-hunan-province-in-june
#4
Mingyong Ma, Yan Wu, Zhaopu Peng, Xin Zhao, Yi Zhang, Guoan Liao, Baoping Zhai
The Sogatella furcifera (Horváth) is a notorious and destructive insect pest, targeting >4 million hectares of rice cultivated in the Hunan Province. To understand the immigration dynamics, we collected S. furcifera light trap catches from 2006 to 2012 at Niangxiang, Linxiang, and Hanshou. We conducted a migration analysis to estimate the immigration source for the northeastern Hunan Province in June. Moreover, we dissected the ovaries of S. furcifera to classify population characteristics. We found that the first appearance of S...
May 13, 2017: Environmental Entomology
https://www.readbyqxmd.com/read/28505265/the-influence-of-the-topography-of-the-ailao-mountains-on-congregated-landings-of-airborne-sogatella-furcifera-hemiptera-delphacidae-populations
#5
Yan Wu, Xi-Jie Li, Xiao Chen, Gao Hu, Yan-Yue Hu, Kai Xiong, Guo Zhang, Jian Zhu, Shao-Lei Chen, Ming-Hong Lu, Ai-Dong Chen, Bao-Ping Zhai
The Sogatella furcifera (Horváth) is an important migrating rice pest whose outbreak may be caused by large-scale congregated landings. Hitherto, the meteorological factors that influence congregated landings were thought to be rainfall and downdraft. However, for migratory insects on a plateau, low temperature may be another key factor leading to congregated landings. However, no reports have been published. Therefore, this paper evaluates the reason for a large-scale congregated landing in the mountainous area in Yuanjiang via light trap monitoring...
May 11, 2017: Environmental Entomology
https://www.readbyqxmd.com/read/28490389/monitoring-and-mass-trapping-methodologies-using-pheromones-the-lesser-date-moth-batrachedra-amydraula
#6
A Levi-Zada, A Sadowsky, S Dobrinin, T Ticuchinski, M David, D Fefer, E Dunkelblum, J A Byers
The lesser date moth (LDM) Batrachedra amydraula is a significant pest of date palm fruits. Previously, detection and monitoring of the pest was inaccurate due to high costs of sampling with lifting machines. We report a practical system for detection and monitoring of LDM based on pheromone traps and relevant models. Dose-response experiments with LDM pheromone traps indicated a 1 mg lure is optimal for monitoring. Delta traps with adhesive covering their entire inner surface gave the highest captures while trap colour was unimportant...
May 11, 2017: Bulletin of Entomological Research
https://www.readbyqxmd.com/read/28485252/interspecific-interactions-in-solitary-aculeata-is-the-presence-of-heterospecifics-important-for-females-establishing-nests
#7
J Kierat, K Miler, W Celary, M Woyciechowski
There are several possible causes of aggregated nesting in solitary Aculeata, one being joint defense against parasites. We tested whether females prefer nesting in aggregations, even if they consist of heterospecifics. We compared the colonization and nesting parasitism of trap-nests with and without a red mason bee aggregation. The results did not support our hypothesis that females prefer nesting in aggregations. The numbers of wild Aculeata nests did not differ between trap-nests with and without an aggregation...
May 9, 2017: Bulletin of Entomological Research
https://www.readbyqxmd.com/read/28459960/diversity-of-platygastridae-in-leaf-litter-and-understory-layers-of-tropical-rainforests-of-the-western-ghats-biodiversity-hotspot-india
#8
K Manoj, T P Rajesh, U Prashanth Ballullaya, K M Meharabi, V K Shibil, K Rajmohana, Palatty Allesh Sinu
Platygastridae is the third largest family of parasitic Hymenoptera in the world. It includes important egg and larval parasitoids of insects and spiders. Therefore, Platygastridae is functionally important in maintaining the stability of tropical rainforests and agroecosystems. Although the diversity of Platygastridae is relatively well-known in agroecosystems, we know little about their diversity in tropical rainforests, and particularly about that of the leaf litter layer. Here, we address the importance of monitoring Platygastridae in tropical rainforests, using data from the relic primary forests of the sacred groves of the Western Ghats...
April 28, 2017: Environmental Entomology
https://www.readbyqxmd.com/read/28444516/trap-nesting-hymenoptera-and-their-network-with-parasites-in-recovered-riparian-forests-brazil
#9
G J Araujo, R Fagundes, Y Antonini
Different aspects of human activities can cause environmental change that endanger species persistence, alter species distributions, and lead to changes in antagonistic and mutualistic interactions, whereas deforestation and flooding of riparian forest results in landscapes consisting of patchily distributed riparian forest fragments in a matrix of pastures, plantations, and urban areas. Therefore, we assessed the richness, abundance, and trophic interactions of trap-nesting Hymenoptera and their parasites at four patches of restored riparian forest and at one reference natural fragment, of different sizes and ages, located at the Volta Grande Reservoir, in Minas Gerais and São Paulo states to answer the following questions: (1) Does the richness and abundance of cavity-nesting bees and wasps differ in riparian forest fragments according to the seasonal periods? (2) Does the composition of cavity-nesting bees and wasps vary among restoration and reference sites and between climate seasons (wet and dry)? (3) How do the degrees of specialization of the parasites vary among the patches of forest? We recorded 12 species of wasps, eight of bees, and nine species of parasites...
April 25, 2017: Neotropical Entomology
https://www.readbyqxmd.com/read/28444209/variation-in-the-time-of-colonization-of-broiler-carcasses-by-carrion-flies-in-nakhonsawan-province-thailand
#10
Kittikhun Moophayak, Kabkaew L Sukontason, Watcharapong Ruankham, Jeffery K Tomberlin, Nophawan Bunchu
Carrion flies are the primary insects colonizing vertebrate carrion; however, limited information is available on the variation in the time of colonization (TOC) as related to time of placement (TOP) and time of death (TOD), particularly in Thailand. Three seasonal sets of nine broiler carcasses (euthanized and placed in field within 0.5 h after death) were placed in mesh enclosures within a disturbed deciduous dipterocarp forest at Nakhonsawan Province, upper-central Thailand, for 3 d to determine the colonization time by carrion flies...
April 21, 2017: Journal of Medical Entomology
https://www.readbyqxmd.com/read/28437475/the-school-malaise-trap-program-coupling-educational-outreach-with-scientific-discovery
#11
Dirk Steinke, Vanessa Breton, Emily Berzitis, Paul D N Hebert
The School Malaise Trap Program (SMTP) provides a technologically sophisticated and scientifically relevant educational experience that exposes students to the diversity of life, enhancing their understanding of biodiversity while promoting environmental stewardship. Since 2013, the SMTP has allowed 15,000 students at 350 primary and secondary schools to explore insect diversity in Canadian schoolyards. Students at each school collected hundreds of insects for an analysis of DNA sequence variation that enabled their rapid identification to a species...
April 2017: PLoS Biology
https://www.readbyqxmd.com/read/28423424/field-evaluation-of-potential-pheromone-lures-for-lygus-lineolaris-hemiptera-miridae-in-the-mid-south
#12
Katherine A Parys, David R Hall
Plant bugs (Hemiptera: Miridae) are phytophagous pests of cultivated plants around the world. In the mid-South region of the United States, Lygus lineolaris (Palisot de Beauvois) is a primary pest of cotton, and causes economic damage. Previously published research about the volatiles produced by members of the genus Lygus, and other closely related groups, indicated that they produce blends of hexyl butyrate, (E)-2-hexenyl butyrate, and (E)-4-oxo-2-hexenal. Varying ratios of the three compounds were loaded into pipette tips, and screened in combination with non-UV white sticky cards for attractiveness to field populations of L...
January 1, 2017: Journal of Insect Science
https://www.readbyqxmd.com/read/28417591/effective-mosquito-and-arbovirus-surveillance-using-metabarcoding
#13
J Batovska, S E Lynch, N O I Cogan, K Brown, J M Darbro, E A Kho, M J Blacket
Effective vector and arbovirus surveillance requires timely and accurate screening techniques that can be easily upscaled. Next-generation sequencing (NGS) is a high-throughput technology that has the potential to modernise vector surveillance. When combined with DNA barcoding, it is termed 'metabarcoding'. The aim of our study was to establish a metabarcoding protocol to characterise pools of mosquitoes and screen them for virus. Pools contained 100 morphologically identified individuals, including one Ross River virus (RRV) infected mosquito, with three species present at different proportions: 1, 5, 94%...
April 18, 2017: Molecular Ecology Resources
https://www.readbyqxmd.com/read/28416693/insect-haptoelectrical-stimulation-of-venus-flytrap-triggers-exocytosis-in-gland-cells
#14
Sönke Scherzer, Lana Shabala, Benjamin Hedrich, Jörg Fromm, Hubert Bauer, Eberhard Munz, Peter Jakob, Khaled A S Al-Rascheid, Ines Kreuzer, Dirk Becker, Monika Eiblmeier, Heinz Rennenberg, Sergey Shabala, Malcolm Bennett, Erwin Neher, Rainer Hedrich
The Venus flytrap Dionaea muscipula captures insects and consumes their flesh. Prey contacting touch-sensitive hairs trigger traveling electrical waves. These action potentials (APs) cause rapid closure of the trap and activate secretory functions of glands, which cover its inner surface. Such prey-induced haptoelectric stimulation activates the touch hormone jasmonate (JA) signaling pathway, which initiates secretion of an acidic hydrolase mixture to decompose the victim and acquire the animal nutrients. Although postulated since Darwin's pioneering studies, these secretory events have not been recorded so far...
May 2, 2017: Proceedings of the National Academy of Sciences of the United States of America
https://www.readbyqxmd.com/read/28406924/quantifying-dispersal-of-a-non-aggressive-saprophytic-bark-beetle
#15
Nicolas Meurisse, Stephen Pawson
Long distance dispersal to locate suitable breeding sites is recognized as a key trait influencing the population dynamics and distribution of bark beetles and other saprophytic insects. While dispersal behavior has been studied for a range of aggressive 'tree killing' bark beetles, few have considered the dispersal behaviour of non-aggressive saprophytic bark beetles that utilize kairomones (host volatiles). We present the results of a mark-recapture experiment that examined adult dispersal patterns of the saprophytic bark beetle Hylurgus ligniperda...
2017: PloS One
https://www.readbyqxmd.com/read/28401482/attractiveness-of-different-food-resources-to-dung-beetles-coleoptera-scarabaeidae-of-a-dry-tropical-area
#16
R P Salomão, A C D Maia, B M Bezerra, L Iannuzzi
Excrement scarcity is one of the main historical factors leading dung beetles to adapt to other food resources. In the Caatinga, a seasonally tropical dry forest, harsh environmental conditions seem to restrict the availability of food resources. In this scenario, the aim of our study was to experimentally investigate the attractiveness of different potential food resources to these insects in the Caatinga. Field samplings were performed, and we tested five resources in pitfall baited traps: excrement, carrion, fruits of two species of columnar cacti, and seeds of one species of Euphorbiaceae (Jatropha mollissima (Pohl))...
April 11, 2017: Neotropical Entomology
https://www.readbyqxmd.com/read/28399228/species-abundance-and-identification-of-forensically-important-flies-of-saudi-arabia-by-dna-barcoding
#17
Ashraf Mashaly, Reem Alajmi, Abd El-Zaher Mustafa, Ahmed Rady, Hussein Alkhedir
Because they may demonstrate characteristics of the environment where a body has been laying prior to the discovery, flies are insects of forensic interest. We investigated the fly abundance and the effect of location in Kingdom of Saudi Arabia on fly species diversity that attack decomposing human and animal remains. Using baited traps deployed in each location, we collected 3,697 flies of seven species belonging to three families. Chrysomya albiceps Wiedmann represented 60.86% of the collected flies, whereas Musca domestica L...
March 30, 2017: Journal of Medical Entomology
https://www.readbyqxmd.com/read/28398534/filth-fly-activity-associated-with-composted-and-noncomposted-beef-cadavers-and-laboratory-studies-on-volatile-organic-compounds
#18
T R Dubie, J L Talley, J B Payne, A W Wayadande, J Dillwith, C Richards
Commercial livestock facilities are faced with the challenge of managing large amounts of waste including manure and animal mortalities. One method of disposing of dead animals is composting. The cadavers are enveloped in carbon material that creates a barrier between the dead tissue and the surrounding environment. Dead tissue can release materials that not only contaminate the soil but also the groundwater and nearby surface water. Animal cadaver composting is designed to facilitate decomposition without the aid of carrion-feeding insects and reduce the presence of common pathogens associated with animal waste and dead tissue...
April 8, 2017: Journal of Medical Entomology
https://www.readbyqxmd.com/read/28397990/germline-transformation-of-the-western-corn-rootworm-diabrotica-virgifera-virgifera
#19
F Chu, W Klobasa, P Wu, S Pinzi, N Grubbs, S Gorski, Y Cardoza, M D Lorenzen
The western corn rootworm (WCR), a major pest of maize, is notorious for rapidly adapting biochemically, behaviourally and developmentally to a variety of control methods. Despite much effort, the genetic basis of WCR adaptation remains a mystery. Since transformation-based applications such as transposon tagging and enhancer trapping have facilitated genetic dissection of model species such as Drosophila melanogaster, we developed a germline-transformation system for WCR in an effort to gain a greater understanding of the basic biology of this economically important insect...
April 11, 2017: Insect Molecular Biology
https://www.readbyqxmd.com/read/28390027/insects-associated-with-pig-carrion-in-two-environments-of-the-brazilian-savanna
#20
L S de Faria, M L Paseto, M S Couri, C A Mello-Patiu, J Mendes
Studies of carrion fauna have increased in Brazil and have contributed to the knowledge of this fauna in the national territory. Brazil has continental dimensions and presents various biomes in its territorial area. Most of the carrion fauna have seldom been studied, and this is especially true for the Savanna or "Cerrado." The present research examined the fauna visiting carrion in two environments and two seasons in a rural area situated in a region of Cerrado in southeastern Brazil. The two environments studied were a pasture and a fragment of semi-deciduous forest...
April 8, 2017: Neotropical Entomology
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