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https://www.readbyqxmd.com/read/27913150/juvenile-hormone-titers-ovarian-status-and-epicuticular-hydrocarbons-in-gynes-and-workers-of-the-paper-wasp-belonogaster-longitarsus
#1
Hans C Kelstrup, Klaus Hartfelder, Nanike Esterhuizen, Theresa C Wossler
The prevailing paradigm for social wasp endocrinology is that of juvenile hormone (JH) functioning pleiotropically in potential and actual queens, where it fuels dominance behaviors, stimulates ovarian growth and/or affects the production of status-linked cuticular compounds. In colonies with annual cycles (e.g., temperate-zone species), female adults produced at the end of the summer (called gynes) are physiologically primed to hibernate. Despite the absence of egg-laying in the pre-overwintering phase, gynes engage in dominance interactions that may affect reproductive potential following hibernation...
November 29, 2016: Journal of Insect Physiology
https://www.readbyqxmd.com/read/27765775/diversification-and-coevolution-in-brood-pollination-mutualisms-windows-into-the-role-of-biotic-interactions-in-generating-biological-diversity
#2
David H Hembry, David M Althoff
Brood pollination mutualisms-interactions in which specialized insects are both the pollinators (as adults) and seed predators (as larvae) of their host plants-have been influential study systems for coevolutionary biology. These mutualisms include those between figs and fig wasps, yuccas and yucca moths, leafflowers and leafflower moths, globeflowers and globeflower flies, Silene plants and Hadena and Perizoma moths, saxifrages and Greya moths, and senita cacti and senita moths. The high reciprocal diversity and species-specificity of some of these mutualisms have been cited as evidence that coevolution between plants and pollinators drives their mutual diversification...
October 7, 2016: American Journal of Botany
https://www.readbyqxmd.com/read/27744515/comparison-of-thermal-traits-of-polistes-dominula-and-polistes-gallicus-two-european-paper-wasps-with-strongly-differing-distribution-ranges
#3
Helmut Kovac, Helmut Käfer, Iacopo Petrocelli, Anton Stabentheiner
The two paper wasps, Polistes dominula and Polistes gallicus, are related species with strongly differing distribution ranges. We investigated thermal tolerance traits (critical thermal limits and metabolic response to temperature) to gain knowledge about physiological adaptations to their local climate conditions and to get evidence for the reasons of P. dominula's successful dispersion. Body and ambient temperature measurements at the nests revealed behavioural adaptations to microclimate. The species differed clearly in critical thermal minimum (P...
October 15, 2016: Journal of Comparative Physiology. B, Biochemical, Systemic, and Environmental Physiology
https://www.readbyqxmd.com/read/27691997/reproductive-efficiency-of-the-bethylid-wasp-cephalonomia-tarsalis-the-influences-of-spatial-structure-and-host-density
#4
P A Eliopoulos, A Kapranas, E G Givropoulou, I C W Hardy
The parasitoid wasp Cephalonomia tarsalis (Ashmead) (Hymenoptera: Bethylidae) is commonly present in stored product facilities. While beneficial, it does not provide a high degree of biological pest control against its host, the saw-toothed beetle Oryzaephilus surinamensis (L.) (Coleoptera: Silvanidae). A candidate explanation for poor host population suppression is that adult females interfere with each other's foraging and reproductive behavior. We used simple laboratory microcosms to evaluate such mutual interference in terms of its overall effects on offspring production...
October 3, 2016: Bulletin of Entomological Research
https://www.readbyqxmd.com/read/27587029/design-and-validation-of-an-mr-conditional-robot-for-transcranial-focused-ultrasound-surgery-in-infants
#5
Karl D Price, Vivian W Sin, Charles Mougenot, Samuel Pichardo, Thomas Looi, Adam C Waspe, James M Drake
PURPOSE: Current treatment of intraventricular hemorrhage (IVH) involves cerebral shunt placement or an invasive brain surgery. Magnetic resonance-guided focused ultrasound (MRgFUS) applied to the brains of pediatric patients presents an opportunity to treat IVH in a noninvasive manner, termed "incision-less surgery." Current clinical and research focused ultrasound systems lack the capability to perform neonatal transcranial surgeries due to either range of motion or dexterity requirements...
September 2016: Medical Physics
https://www.readbyqxmd.com/read/27503730/nest-thermoregulation-of-the-paper-wasp-polistes-dominula
#6
Nicole Höcherl, Shawn Kennedy, Jürgen Tautz
Wasps of the genus Polistes build combs without any cover and hence are insufficiently protected against temperature fluctuations. Due to this fact, different types of thermoregulation of Polistes dominula nests were investigated using the modern method of thermography. The study of active mechanisms for nest thermoregulation revealed no brood incubation or clustering behaviour of P. dominula. Furthermore, we found out that wing fanning for cooling the nest was almost undetectable (4 documented cases). However, we could convincingly record that water evaporation is most effective for nest cooling...
August 2016: Journal of Thermal Biology
https://www.readbyqxmd.com/read/27496543/application-of-recombinant-antigen-5-allergens-from-seven-allergy-relevant-hymenoptera-species-in-diagnostics
#7
M Schiener, B Eberlein, C Moreno-Aguilar, G Pietsch, P Serrano, M McIntyre, L Schwarze, D Russkamp, T Biedermann, E Spillner, U Darsow, M Ollert, C B Schmidt-Weber, S Blank
BACKGROUND: Hymenoptera stings can cause severe anaphylaxis in untreated venom-allergic patients. A correct diagnosis regarding the relevant species for immunotherapy is often hampered by clinically irrelevant cross-reactivity. In vespid venom allergy, cross-reactivity between venoms of different species can be a diagnostic challenge. To address immunological IgE cross-reactivity on molecular level, seven recombinant antigens 5 of the most important Vespoidea groups were assessed by different diagnostic setups...
August 6, 2016: Allergy
https://www.readbyqxmd.com/read/27445416/causes-of-mortality-of-polistes-nimpha-colonies
#8
K B Kozyra, E Baraniak
We studied populations of the eusocial paper wasps Polistes nimpha from 2012 to 2014, near Poznań, Poland, to identify the causes of mortality and to analyze changes in the number of active nests during the breeding season (from May to September). Results of the 3-year study showed that the major cause of P. nimpha mortality (51.9 %) in the study areas was the activity of mammals, probably foxes and wild boars. The second major cause of wasp death was ant predation (12 %). Only 11 of the 308 nests (3.6 %) demonstrated a natural colony decline, following the emergence of reproductives...
2016: Insectes Sociaux
https://www.readbyqxmd.com/read/27435228/discovery-and-development-of-chemical-attractants-used-to-trap-pestiferous-social-wasps-hymenoptera-vespidae
#9
Peter Landolt, Qing-He Zhang
Chemical attractants for trapping temperate social wasps have been discovered during the screening of chemicals as attractants for flies, the study of pentatomid bug pheromones, and the testing of volatiles of fermented sweet baits. Wasp attraction to these chemicals seems to be related to either food-finding or prey-finding behavior. Of these attractive chemicals, commercial lures marketed in North America for trapping wasps generally contain heptyl butyrate, or the combination of acetic acid and 2-methyl-1-butanol...
July 2016: Journal of Chemical Ecology
https://www.readbyqxmd.com/read/27408577/revision-on-palaearctic-species-of-periclistus-f%C3%A3-rster-with-description-of-a-new-species-and-its-host-plant-gall-hymenoptera-cynipidae
#10
Juli Pujade-Villar, Yiping Wang, Rui Guo, Xuexin Chen
Palaearctic species of Periclistus Förster has been systematically described, but a new inquiline gall-wasp, Periclistus qinghainensis sp. n., is described from China. This species was obtained from an unknown stem gall induced on Rosa sp. Diagnosis, distribution and biology of the new species are described in this paper. After examining the types of Periclistus idoneus Belizin, 1973 and Periclistus capillatus Belizin, 1968, it is concluded that Periclistus idoneus belongs to genus Aulacidea, and Periclistus capillatus is a valid species of Periclistus...
2016: ZooKeys
https://www.readbyqxmd.com/read/27402762/socially-selected-ornaments-influence-hormone-titers-of-signalers-and-receivers
#11
Elizabeth A Tibbetts, Katherine Crocker, Zachary Y Huang
Decades of behavioral endocrinology research have shown that hormones and behavior have a bidirectional relationship; hormones both influence and respond to social behavior. In contrast, hormones are often thought to have a unidirectional relationship with ornaments. Hormones influence ornament development, but little empirical work has tested how ornaments influence hormones throughout life. Here, we experimentally alter a visual signal of fighting ability in Polistes dominulus paper wasps and measure the behavioral and hormonal consequences of signal alteration in signalers and receivers...
July 26, 2016: Proceedings of the National Academy of Sciences of the United States of America
https://www.readbyqxmd.com/read/27400287/correction-socially-selected-ornaments-and-fitness-signals-of-fighting-ability-in-paper-wasps-are-positively-associated-with-survival-reproductive-success-and-rank
#12
(no author information available yet)
No abstract text is available yet for this article.
July 2016: Evolution; International Journal of Organic Evolution
https://www.readbyqxmd.com/read/27392781/the-role-of-contact-chemoreception-in-the-host-location-process-of-an-egg-parasitoid
#13
Alessia Iacovone, Alice Sarah French, Frédérique Tellier, Antonino Cusumano, Gilles Clément, Cyril Gaertner, Eric Conti, Gianandrea Salerno, Frédéric Marion-Poll
Taste allows insects to detect palatable or toxic foods, identify a mate, and select appropriate oviposition sites. The gustatory system strongly contributes to the survival and reproductive success of many species, yet it is rarely studied in insect parasitoids. In order to locate and assess a host in which they will lay their eggs, female wasps actively search for chemical cues using their sensory organs present mainly on the antennae. In this paper, we studied the role of antennal taste sensilla chaetica in the perception of contact semiochemicals in Trissolcus brochymenae (Hymenoptera: Platygastridae), an egg parasitoid of the brassicaceae pest Murgantia histrionica (Heteroptera: Pentatomidae)...
August 2016: Journal of Insect Physiology
https://www.readbyqxmd.com/read/27213043/establishing-a-clinical-service-for-the-treatment-of-osteoid-osteoma-using-magnetic-resonance-guided-focused-ultrasound-overview-and-guidelines
#14
REVIEW
Michael J Temple, Adam C Waspe, Joao G Amaral, Alessandro Napoli, Suzanne LeBlang, Pejman Ghanouni, Matthew D Bucknor, Fiona Campbell, James M Drake
Recent studies have demonstrated the effectiveness of magnetic resonance-guided focused ultrasound (MRgFUS) in the treatment of osteoid osteoma (OO), a painful, benign bone tumor. As MRgFUS is a noninvasive and radiation-free treatment, it stands to replace the current standard of care, percutaneous radiofrequency, or laser thermal ablation. Within an institution, creation of a clinical OO MRgFUS treatment program would not only provide cutting edge medical treatment at the current time but would also establish the foundation for an MRgFUS clinical service to introduce treatments currently under development into clinical practice in the future...
2016: Journal of Therapeutic Ultrasound
https://www.readbyqxmd.com/read/27179700/molecular-and-morphological-phylogenetics-of-chelonine-parasitoid-wasps-hymenoptera-braconidae-with-a-critical-assessment-of-divergence-time-estimations
#15
Rebecca N Kittel, Andrew D Austin, Seraina Klopfstein
Parasitoid wasps of the subfamily Cheloninae are both species rich and poorly known. Although the taxonomy of Cheloninae appears to be relatively stable, there is no clear understanding of relationships among higher-level taxa. We here applied molecular phylogenetic analyses using three markers (COI, EF1α, 28S) and 37 morphological characters to elucidate the evolution and systematics of these wasps. Analyses were based on 83 specimens representing 13 genera. All genera except Ascogaster, Phanerotoma, and Pseudophanerotoma formed monophyletic groups; Furcidentia (stat...
August 2016: Molecular Phylogenetics and Evolution
https://www.readbyqxmd.com/read/27167514/ontogenic-caste-differences-in-the-van-der-vecht-organ-of-primitively-eusocial-neotropical-paper-wasps
#16
André Rodrigues de Souza, Iacopo Petrocelli, José Lino-Neto, Eduardo Fernando Santos, Fernando Barbosa Noll, Stefano Turillazzi
Recent studies have reported incipient morphological caste dimorphism in the Van der Vecht organ size of some temperate Polistes paper wasps. Whether species other than the temperate ones show a similar pattern remains elusive. Here, we have studied some Neotropical Polistes species. By comparing females collected through the year, we showed caste related differences in the size of the Van der Vecht organ in P. ferreri (body size corrected Van der Vech organ size of queens = 0.45 ± 0.06, workers = 0.38 ± 0...
2016: PloS One
https://www.readbyqxmd.com/read/26859767/genome-transcriptome-and-methylome-sequencing-of-a-primitively-eusocial-wasp-reveal-a-greatly-reduced-dna-methylation-system-in-a-social-insect
#17
Daniel S Standage, Ali J Berens, Karl M Glastad, Andrew J Severin, Volker P Brendel, Amy L Toth
Comparative genomics of social insects has been intensely pursued in recent years with the goal of providing insights into the evolution of social behaviour and its underlying genomic and epigenomic basis. However, the comparative approach has been hampered by a paucity of data on some of the most informative social forms (e.g. incipiently and primitively social) and taxa (especially members of the wasp family Vespidae) for studying social evolution. Here, we provide a draft genome of the primitively eusocial model insect Polistes dominula, accompanied by analysis of caste-related transcriptome and methylome sequence data for adult queens and workers...
April 2016: Molecular Ecology
https://www.readbyqxmd.com/read/26805885/differential-properties-of-venom-peptides-and-proteins-in-solitary-vs-social-hunting-wasps
#18
REVIEW
Si Hyeock Lee, Ji Hyeong Baek, Kyungjae Andrew Yoon
The primary functions of venoms from solitary and social wasps are different. Whereas most solitary wasps sting their prey to paralyze and preserve it, without killing, as the provisions for their progeny, social wasps usually sting to defend their colonies from vertebrate predators. Such distinctive venom properties of solitary and social wasps suggest that the main venom components are likely to be different depending on the wasps' sociality. The present paper reviews venom components and properties of the Aculeata hunting wasps, with a particular emphasis on the comparative aspects of venom compositions and properties between solitary and social wasps...
February 2016: Toxins
https://www.readbyqxmd.com/read/26751076/the-mechanisms-of-water-exchange-the-regulatory-roles-of-multiple-interactions-in-social-wasps
#19
Devanshu Agrawal, Istvan Karsai
Evolutionary benefits of task fidelity and improving information acquisition via multiple transfers of materials between individuals in a task partitioned system have been shown before, but in this paper we provide a mechanistic explanation of these phenomena. Using a simple mathematical model describing the individual interactions of the wasps, we explain the functioning of the common stomach, an information center, which governs construction behavior and task change. Our central hypothesis is a symmetry between foragers who deposit water and foragers who withdraw water into and out of the common stomach...
2016: PloS One
https://www.readbyqxmd.com/read/26729932/cooperation-between-non-relatives-in-a-primitively-eusocial-paper-wasp-polistes-dominula
#20
REVIEW
Jeremy Field, Ellouise Leadbeater
In cooperatively breeding vertebrates, the existence of individuals that help to raise the offspring of non-relatives is well established, but unrelated helpers are less well known in the social insects. Eusocial insect groups overwhelmingly consist of close relatives, so populations where unrelated helpers are common are intriguing. Here, we focus on Polistes dominula-the best-studied primitively eusocial wasp, and a species in which nesting with non-relatives is not only present but frequent. We address two major questions: why individuals should choose to nest with non-relatives, and why such individuals participate in the costly rearing of unrelated offspring...
February 5, 2016: Philosophical Transactions of the Royal Society of London. Series B, Biological Sciences
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