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https://www.readbyqxmd.com/read/28623149/subtle-effect-of-xenos-vesparum-xenidae-strepsiptera-on-the-reproductive-apparatus-of-its-male-host-parasite-or-parasitoid
#1
L Beani, D Marchini, F Cappa, I Petrocelli, M Gottardo, F Manfredini, F Giusti, R Dallai
Parasitic castration is an adaptive strategy where parasites usurp the hosts' reproductive physiology to complete their life cycle. The alterations in the host traits vary in their magnitude, from subtle changes in the host morpho-physiology and behaviour to the production of complex aberrant phenotypes, which often depend on the host gender. The strepsipteran macroparasite Xenos vesparum induces dramatic behavioural and physiological changes in its female host, the paper wasp Polistes dominula, while its effect on the male phenotype is largely unknown...
June 13, 2017: Journal of Insect Physiology
https://www.readbyqxmd.com/read/28615504/biological-markets-in-cooperative-breeders-quantifying-outside-options
#2
Lena Grinsted, Jeremy Field
A major aim in evolutionary biology is to understand altruistic help and reproductive partitioning in cooperative societies, where subordinate helpers forego reproduction to rear dominant breeders' offspring. Traditional models of cooperation in these societies typically make a key assumption: that the only alternative to staying and helping is solitary breeding, an often unfeasible task. Using large-scale field experiments on paper wasps (Polistes dominula), we show that individuals have high-quality alternative nesting options available that offer fitness payoffs just as high as their actual chosen options, far exceeding payoffs from solitary breeding...
June 14, 2017: Proceedings. Biological Sciences
https://www.readbyqxmd.com/read/28615487/cognitive-specialization-for-learning-faces-is-associated-with-shifts-in-the-brain-transcriptome-of-a-social-wasp
#3
Ali J Berens, Elizabeth A Tibbetts, Amy L Toth
The specialized ability to learn and recall individuals based on distinct facial features is known in only a few, large-brained social taxa. Social paper wasps in the genus Polistes are the only insects known to possess this form of cognitive specialization. We analyzed genome-wide brain gene expression during facial and pattern training for two species of paper wasps (P. fuscatus, which has face recognition, and P. metricus, which does not) using RNA sequencing. We identified 237 transcripts associated with face specialization in P...
June 15, 2017: Journal of Experimental Biology
https://www.readbyqxmd.com/read/28615481/paper-wasps-really-recognise-each-other-s-faces
#4
Kathryn Knight
No abstract text is available yet for this article.
June 15, 2017: Journal of Experimental Biology
https://www.readbyqxmd.com/read/28610193/description-of-i-brachymeria-philornisae-i-sp-n-hymenoptera-chalcididae-%C3%A2-a-parasitoid-of-the-bird-parasite-i-philornis-i-i-trinitensis-i-diptera-muscidae-in-tobago-with-a-review-of-the-sibling-species
#5
Gérard Delvare, George E Heimpel, Hannes Baur, Dave D Chadee, Raymond Martinez, Sarah A Knutie
In this paper, we describe and illustrate a new species of parasitoid wasp as Brachymeria philornisae Delvare, sp. nov. The new species was reared from Philornis trinitensis Dodge & Aitken (Diptera: Muscidae) puparia that were found in the nests of the bird species Mimus gilvus (Vieillot) (Mimidae) and Tiaris bicolor (L.) (Thraupidae) in Tobago. The new species is of particular interest as it may be considered a potential biological control agent in locations where Philornis species are invasive, such as the Galapagos Islands...
March 9, 2017: Zootaxa
https://www.readbyqxmd.com/read/28539481/inferring-stratified-parasitoid-dispersal-mechanisms-and-parameters-from-coarse-data-using-mathematical-and-bayesian-methods
#6
Christopher Strickland, Nadiah P Kristensen, Laura Miller
Biological invasions have movement at the core of their success. However, due to difficulties in collecting data, medium- and long-distance dispersal of small insects has long been poorly understood and likely to be underestimated. The agricultural release of parasitic hymenoptera, a group of wasps that are critical for biological pest control, represents a rare opportunity to study the spread of insects on multiple spatial scales. As these insects are typically less than 1 mm in size and are challenging to track individually, a first-time biocontrol release will provide a known spatial position and time of initial release for all individuals that are subsequently collected...
May 2017: Journal of the Royal Society, Interface
https://www.readbyqxmd.com/read/28533974/foraging-behaviour-of-an-egg-parasitoid-exploiting-plant-volatiles-induced-by-pentatomids-the-role-of-adaxial-and-abaxial-leaf-surfaces
#7
Francesca Frati, Antonino Cusumano, Eric Conti, Stefano Colazza, Ezio Peri, Salvatore Guarino, Letizia Martorana, Roberto Romani, Gianandrea Salerno
Several phases of herbivorous insect attack including feeding and oviposition are known to induce plant defenses. Plants emit volatiles induced by herbivores to recruit insect parasitoids as an indirect defense strategy. So far, volatiles induced by herbivore walking and their putative role in the foraging behavior of egg parasitoids have not been investigated. In this paper we studied the response of the egg parasitoid Trissolcus basalis toward volatiles emitted by Vicia faba plants as consequence of the walking activity of the host Nezara viridula...
2017: PeerJ
https://www.readbyqxmd.com/read/28462032/the-emerging-contribution-of-social-wasps-to-grape-rot-disease-ecology
#8
Anne A Madden, Sean D Boyden, Jonathan-Andrew N Soriano, Tyler B Corey, Jonathan W Leff, Noah Fierer, Philip T Starks
Grape sour (bunch) rot is a polymicrobial disease of vineyards that causes millions of dollars in lost revenue per year due to decreased quality of grapes and resultant wine. The disease is associated with damaged berries infected with a community of acetic acid bacteria, yeasts, and filamentous fungi that results in rotting berries with high amounts of undesirable volatile acidity. Many insect species cause the initial grape berry damage that can lead to this disease, but most studies have focused on the role of fruit flies in facilitating symptoms and vectoring the microorganisms of this disease complex...
2017: PeerJ
https://www.readbyqxmd.com/read/28404777/transcriptomics-of-an-extended-phenotype-parasite-manipulation-of-wasp-social-behaviour-shifts-expression-of-caste-related-genes
#9
Amy C Geffre, Ruolin Liu, Fabio Manfredini, Laura Beani, Jeyaraney Kathirithamby, Christina M Grozinger, Amy L Toth
Parasites can manipulate host behaviour to increase their own transmission and fitness, but the genomic mechanisms by which parasites manipulate hosts are not well understood. We investigated the relationship between the social paper wasp, Polistes dominula, and its parasite, Xenos vesparum (Insecta: Strepsiptera), to understand the effects of an obligate endoparasitoid on its host's brain transcriptome. Previous research suggests that X. vesparum shifts aspects of host social caste-related behaviour and physiology in ways that benefit the parasitoid...
April 12, 2017: Proceedings. Biological Sciences
https://www.readbyqxmd.com/read/28386452/heritable-variation-in-colour-patterns-mediating-individual-recognition
#10
Michael J Sheehan, Juanita Choo, Elizabeth A Tibbetts
Understanding the developmental and evolutionary processes that generate and maintain variation in natural populations remains a major challenge for modern biology. Populations of Polistes fuscatus paper wasps have highly variable colour patterns that mediate individual recognition. Previous experimental and comparative studies have provided evidence that colour pattern diversity is the result of selection for individuals to advertise their identity. Distinctive identity-signalling phenotypes facilitate recognition, which reduces aggression between familiar individuals in P...
February 2017: Royal Society Open Science
https://www.readbyqxmd.com/read/28330212/paper-wasp-nest-mediated-biosynthesis-of-silver-nanoparticles-for-antimicrobial-catalytic-anticoagulant-and-thrombolytic-applications
#11
Agbaje Lateef, Monsurat A Akande, Sunday A Ojo, Bolaji I Folarin, Evariste B Gueguim-Kana, Lorika S Beukes
Biosynthesis of silver nanoparticles (AgNPs) using nest extract of paper wasp (Polistes sp) was investigated in this work. The AgNPs were characterized by UV-Vis spectroscopy, Fourier transform infrared spectroscopy (FTIR), and transmission electron microscopy (TEM), and evaluated for antibacterial, antifungal, dye degradation, blood anticoagulation, and blood clot dissolution (thrombolytic) activities. The crystalline polydispersed AgNPs with size range of 12.5-95.55 nm absorbed maximally at 428 nm and showed anisotropic structures of sphere, triangle, hexagon, rod, and rhombus...
December 2016: 3 Biotech
https://www.readbyqxmd.com/read/28178988/nested-houses-domestication-dynamics-of-human-wasp-relations-in-contemporary-rural-japan
#12
Charlotte L R Payne, Joshua D Evans
BACKGROUND: Domestication is an important and contested concept. Insects are used as food worldwide, and while some have been described as domesticated and even 'semi-domesticated', the assumptions and implications of this designation are not clear. The purpose of this paper is to explore these aspects of insect domestication, and broader debates in domestication studies, through the case of edible wasps in central rural Japan. METHODS: Both authors conducted ethnographic fieldwork with communities in central rural Japan...
February 8, 2017: Journal of Ethnobiology and Ethnomedicine
https://www.readbyqxmd.com/read/28168097/taxonomic-revision-and-molecular-phylogenetics-of-the-idarnes-incertus-species-group-hymenoptera-agaonidae-sycophaginae
#13
Fernando H A Farache, Astrid Cruaud, Gwenaëlle Genson, Jean-Yves Rasplus, Rodrigo A S Pereira
Sycophaginae is a group of non-pollinating fig wasps considered closely related to the fig pollinators (Agaoninae, Tetrapusiinae, and Kradibiinae) in the most recent phylogenetic analyses. They occur in all tropical regions and are associated with Ficus subgenera Urostigma and Sycomorus. There are six described genera of Sycophaginae, and two are native and confined to the Neotropics, namely Idarnes Walker, 1843 and Anidarnes Bouček, 1993. Genus Idarnes is divided into three morphologically distinct groups that were proven to be monophyletic by recent molecular phylogenetic analyses...
2017: PeerJ
https://www.readbyqxmd.com/read/28117836/market-forces-influence-helping-behaviour-in-cooperatively-breeding-paper-wasps
#14
Lena Grinsted, Jeremy Field
Biological market theory is potentially useful for understanding helping behaviour in animal societies. It predicts that competition for trading partners will affect the value of commodities exchanged. It has gained empirical support in cooperative breeders, where subordinates help dominant breeders in exchange for group membership, but so far without considering one crucial aspect: outside options. We find support for a biological market in paper wasps, Polistes dominula. We first show that females have a choice of cooperative partners...
January 24, 2017: Nature Communications
https://www.readbyqxmd.com/read/28045911/do-quiescence-and-wasp-venom-induced-lethargy-share-common-neuronal-mechanisms-in-cockroaches
#15
Stav Emanuel, Frederic Libersat
The escape behavior of a cockroach may not occur when it is either in a quiescent state or after being stung by the jewel wasp (Ampulex compressa). In the present paper, we show that quiescence is an innate lethargic state during which the cockroach is less responsive to external stimuli. The neuronal mechanism of such a state is poorly understood. In contrast to quiescence, the venom-induced lethargic state is not an innate state in cockroaches. The Jewel Wasp disables the escape behavior of cockroaches by injecting its venom directly in the head ganglia, inside a neuropile called the central complex a 'higher center' known to regulate motor behaviors...
2017: PloS One
https://www.readbyqxmd.com/read/27988633/the-subfamily-mendesellinae-hymenoptera-braconidae-in-brazil-with-the-description-of-six-new-species
#16
Marco Aurélio Bortoni, Carolina DA Silva Souza-Gessner, Angélica Maria Penteado-Dias
In this paper, we study the Mendesellinae wasps from Brazil deposited at Departamento de Ecologia e Biologia Evolutiva da Universidade Federal de São Carlos, São Carlos, SP, Brazil collection. Two new species of Epsilogaster (E. masoni sp. n. and E. whitfieldi sp. n.) and four new species of Mendesella (M. albipleura sp. n., M. itatiaia sp. n., M. japi sp. n., M. yamadai sp. n.) are described and illustrated.
November 29, 2016: Zootaxa
https://www.readbyqxmd.com/read/27913150/juvenile-hormone-titers-ovarian-status-and-epicuticular-hydrocarbons-in-gynes-and-workers-of-the-paper-wasp-belonogaster-longitarsus
#17
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
#18
REVIEW
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 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
#19
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...
February 2017: 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
#20
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...
April 2017: Bulletin of Entomological Research
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