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Journal articles on the topic 'Guercino'

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Published: 4 June 2021
Last updated: 10 February 2022

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1

Griswold, William M. "Guercino." Metropolitan Museum of Art Bulletin 48, no. 4 (1991): 1. http://dx.doi.org/10.2307/3258858.

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2

Unger, Daniel M. "Marketing and Self-Promotion in Early Modern Painting: The Case of Guercino." Arts 10, no. 3 (August 18, 2021): 55. http://dx.doi.org/10.3390/arts10030055.

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This article focuses on Guercino’s Return of the Prodigal Son, commissioned in the name of Cardinal Alessandro Ludovisi and on his marketing choices. This is a case study in terms of self-promotion tactics employed by an ambitious artist. My argument is that one finds in the painting a secondary and more sophisticated level of interpretation, which relates to the relationship between the painter and his patron. To the most traditional iconography of the scene, Guercino added musicians and spectators, thus positioning the entire composition in the theatre. One of the musicians is depicted in a way that casts him as a representative of the painter. The patron understood Guercino’s intentions and commissioned what became Guercino’s most important artworks. It was Guercino’s ability of shifting the attention of a given iconography and deliver current political meaning that is discernible in his Roman works commissioned by the same Cardinal Ludovisi who was elected Pope Gregory XV.
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3

Mateo, J. "Giovanni Francesco Barbieri, il Guercino (Cento, 1591-Bolonia, 1666)." Archivos de la Sociedad Española de Oftalmología 87, no. 7 (July 2012): 226–27. http://dx.doi.org/10.1016/j.oftal.2012.04.014.

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4

Savio, Giulia. "Guercino. La scuola, la maniera: I disegni agli Uffizi by Nicholas Turner." Comitatus: A Journal of Medieval and Renaissance Studies 40, no. 1 (2009): 340–41. http://dx.doi.org/10.1353/cjm.2009.0012.

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5

Kretz, F., S. Scholtz, C. Mazzini, and G. Auffarth. "Licht und Schatten in der Malerei. Das Leben von Giovanni Francesco Barbieri, „il Guercino“ – der Schieler." Klinische Monatsblätter für Augenheilkunde 231, no. 09 (June 10, 2014): 927–28. http://dx.doi.org/10.1055/s-0034-1368406.

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6

Scholtz, Sibylle, Lee MacMorris, Frank Krogmann, and Gerd U. Auffarth. "Lights and darks of a picture. The life of Giovanni Francesco Barbieri, “il Guercino” – the squinter." Strabismus 27, no. 1 (January 2, 2019): 39–42. http://dx.doi.org/10.1080/09273972.2019.1559532.

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7

Peyron, M. "Guercif." Encyclopédie berbère, no. 21 (September 1, 1999): 3234–36. http://dx.doi.org/10.4000/encyclopedieberbere.1812.

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8

Suthor, Nicola. "Guercino’s “wet” drawing." Res: Anthropology and aesthetics 63-64 (March 2013): 80–92. http://dx.doi.org/10.1086/690979.

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9

Scalea, Thomas M. "Louis Del Guercio, MD (1929–2013)." Journal of Trauma and Acute Care Surgery 74, no. 6 (June 2013): 1606–7. http://dx.doi.org/10.1097/ta.0b013e3182924c31.

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10

AGUIAR, A. M. FRANQUINHO, and FERNANDO ALBANO ILHARCO. "Macrosiphoniella madeirensis Aguiar & Ilharco sp. nov. (Hemiptera: Sternorrhyncha: Aphididae) from Madeira Island." Zootaxa 867, no. 1 (February 25, 2005): 1. http://dx.doi.org/10.11646/zootaxa.867.1.1.

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A new species of the aphid genus Macrosiphoniella del Guercio (M. madeirensis sp. nov.) is described from material collected on Helichrysum melaleucum in Madeira Island. Macrosiphoniella helichrysi Remaudière is redescribed.
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11

Watson, G. W., D. J. Voegtlin, S. T. Murphy, and R. G. Foottit. "Biogeography of the Cinara cupressi complex (Hemiptera: Aphididae) on Cupressaceae, with description of a pest species introduced into Africa." Bulletin of Entomological Research 89, no. 3 (March 1999): 271–83. http://dx.doi.org/10.1017/s0007485399000395.

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AbstractIn recent decades, aphids identified as Cinara cupressi (Buckton) have seriously damaged commercial and ornamental plantings and native stands of Cupressus, Juniperus, Widdringtonia and other Cupressaceae in Africa, Italy, Jordan, Yemen, Mauritius and Colombia. Aphids currently identified as Cinara cupressiappear to belong to a species complex. This work was undertaken to identify the pest, its likely area of origin and any specific natural enemies, to facilitate a biological control programme. The biogeography of the species complex was studied using morphometric analysis of specimens from all the major regions where they have been collected, and analysis of host-plant ranges, parasitoid records and host association information. The cause of tree damage is shown to be an unnamed species, here described as C. (Cupressobium) cupressivora Watson & Voegtlin sp. n., which probably originated on Cupressus sempervirens in a region from eastern Greece to just south of the Caspian Sea. The remainder of the complex, Cinara cupressisensu lato, apparently consists of three morphologically similar species (C. sabinae(Gillette & Palmer) and C. cupressi (Buckton), probably originating in North America, and an unidentified species). There is insufficient data available to separate these taxa, or to determine the status of C. canadensis Hottes & Bradley, so C. sabinae and C. canadensis are left in synonymy under C. cupressi (Buckton). Lachniella tujae del Guercio and L. juniperi signata del Guercio, thought to be part of the C. cupressi complex, were found to be junior synonyms of C. tujafilina (del Guercio); these new synonymies are proposed and lectotypes of L. tujae and L. juniperi signataare designated.
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12

ZARKANİ, AGUSTİN, and FERİT TURANLI. "Short Communication: Morphological characterizations of Aphis passeriniana (Del Guercio) (Hemiptera: Aphididae) living on common sage in Turkey." Biodiversitas Journal of Biological Diversity 19, no. 4 (July 1, 2018): 1319–25. http://dx.doi.org/10.13057/biodiv/d190419.

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Zarkani A, Turanlı F. 2018. Short Communication: Morphological characterizations of Aphis passeriniana (Del Guercio)(Hemiptera: Aphididae) living on common sage in Turkey. Biodiversitas 19: 1319-1325. Aphis passeriniana (Del Guercio) (Hemiptera:Aphididae) living on sage plant in Turkey is already recorded, but some morphological characterizations are still needed to extend.Here, morphometrics data of A. passeriniana is described from apterous viviparous females (fundatrigeniae and fundatrices) attackingSalvia officinalis Linnaeus (Lamiaceae) in Turkey. Seventy specimens were collected in Izmir province between January 2015 andDecember 2017. The study revealed that apterous viviparous females of A. passeriniana turkish species have body lenght of 0.715-1.407mm, rostal segment IV+V of 1.80-2.49 × hind tibia II, antennae processus terminalis/base of 1.4-1.8, siphunculus of 0.56-1.56 × caudalength and cauda of 3-6 setae. Biometric data of alate viviparous and intermediate individual between apterous and oviparous, and also arevision of identification key for the species within aphid species in Salvia are consisted.
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13

Robinson, A. G. "ANNOTATED LIST OFMACROSIPHONIELLA(HOMOPTERA: APHIDIDAE) OF AMERICA NORTH OF MEXICO, WITH A KEY AND DESCRIPTION OF A NEW SPECIES." Canadian Entomologist 119, no. 10 (October 1987): 913–19. http://dx.doi.org/10.4039/ent119913-10.

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AbstractA key is given for 16 species in the genusMacrosiphoniellaDel Guercio in America north of Mexico, including one new species from Manitoba,Macrosiphoniella paucisetosasp.nov. fromArtemisiaspp. An annotated list is provided which includes tentative identification ofM.oblonga(Mordvilko) intercepted on plants ofChrysanthemumimported into the United States of America from Europe.
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14

MEHRPARVAR, MOHSEN, and ALI REZWANI. "A new species of Macrosiphoniella and redescription of Coloradoa heinzei (Hemiptera: Sternorrhyncha: Aphididae) as a new record in Iran." Zootaxa 1634, no. 1 (November 9, 2007): 61–68. http://dx.doi.org/10.11646/zootaxa.1634.1.2.

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Apterous and alate viviparous females of Macrosiphoniella kermanensis sp. nov. living on Artemisia sieberi (Asteraceae) are described from Iran. Also, Coloradoa heinzei (Borner) from Artemisia aucheri (Asteraceae), as a new record in Iran, is redescribed. A key to the apterous viviparous females of Macrosiphoniella del Guercio species living on Artemisia in Iran is given.
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15

Ungan, Umut. "Gabriele Guercio, L’Art n’évolue pas. L’univers immobile de Gino de Dominicis." Marges, no. 24 (April 20, 2017): 144–45. http://dx.doi.org/10.4000/marges.1282.

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16

Stroyan, H. L. G. "Notes on some species of Cavariella Del Guercio, 1911 (Homoptera: Aphidoidea)." Proceedings of the Royal Entomological Society of London. Series B, Taxonomy 38, no. 1-2 (March 18, 2009): 7–19. http://dx.doi.org/10.1111/j.1365-3113.1969.tb00216.x.

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17

Havlíčková, H., V. Holubec, and R. Bocková. "The occurrence ofSipha (Rungsia) elegans del Guercio onAegilops and primitiveTriticum species." Anzeiger füur Schädlingskunde Pflanzenschutz Umweltschutz 69, no. 5 (July 1996): 99–102. http://dx.doi.org/10.1007/bf01996877.

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18

Van Den Berg, M. A. "The citrus pyslla, Trioza erytreae (Del Guercio) (hemiptera: Triozidae): A review." Agriculture, Ecosystems & Environment 30, no. 3-4 (April 1990): 171–94. http://dx.doi.org/10.1016/0167-8809(90)90104-l.

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19

Dilbaryan, K. P., L. A. Ghazaryan, I. E. Stepanyan, and A. G. Khachatryan. "INVASIVE PESTS DETECTED IN SOME GREENHOUSES OF EREVAN CITY." Russian Journal of Biological Invasions 14, no. 3 (August 30, 2021): 7–14. http://dx.doi.org/10.35885/1996-1499-2021-14-3-07-14.

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The following invasive species: Toxoptera aurantii Boyer de Fonscolombe, Toxoptera citricida Kirkaldy, Macrosiphoniteella sanborni Latr, Toxoptera , Macrosiphoniella Del Guercio), Trialeurodes vaporariorum Westwood (Aleyrodidae West., Trialeurodes Cockerell), Tetranychus viennensis Zacher (Tetranychidae Donn, Tetranychus Dufour), and Cenopalpus mespili Lufour. et Mitrofanov (Tenuipalpidae Sayed, Cenopalpus Pritchard & Baker) were identified during studying of the pest fauna of three greenhouse complexes ("Grig Garden", "Green Paradise" and "Avan") in Yerevan which are specialized on the cultivation of ornamental plants. Insecticide and acaricide resistant lines of Tetranychus viennensis and Macrosiphum rosae were found in two greenhouse complexes.
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20

Bonfait, Olivier. "Le livre de comptes, la mémoire et le monument. La carrière des artistes à Bologne durant l'époque moderne." Annales. Histoire, Sciences Sociales 48, no. 6 (December 1993): 1497–518. http://dx.doi.org/10.3406/ahess.1993.279228.

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En 1678, le chanoine Malvasia, dans son monumental ouvrage destiné à assurer la gloire des peintres bolonais, raconte comment, pour écrire la vie du Guerchin qui travaillait dans le secret de la bottega, il a dû recourir à des memoranda qui y avaient été écrits parce que ce peintre, qui jouissait pourtant d'une liberté presque égale à celle de Poussin, ne pratiquait pas dans son atelier la même libéralité que les Carrache, l'Albane, ou le Guide. Ses contemporains lui reconnaissaient pourtant une identité sociale et professionnelle d'artiste : le duc de Modène écrivait qu'il se soumettait à sa « bizarrerie », un terme qui renvoie à la fois au « génie » du créateur et au caractère saturnien de l'artiste. Guerchin, d'autre part, même s'il tenait à travailler comme un artisan, était conscient de son identité d'artiste et refusait d'abdiquer son genio en face du commanditaire, qu'il s'agît de l'invention ou de la valeur de l’ ɶuvre.
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21

Starowicz, Marzena, Mariusz Kanturski, Łukasz Junkiert, and Karina Wieczorek. "Aphids (Hemiptera: Aphidomorpha) of the Botanic Garden of the Jagiellonian University, Kraków." Polish Journal of Entomology 84, no. 4 (December 1, 2015): 325–38. http://dx.doi.org/10.1515/pjen-2015-0028.

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Abstract The paper presents results of faunistic investigations of aphids (Aphidomorpha) in the Botanic Garden of the Jagiellonian University, Kraków, in the Kraków – Wieluń Upland. During two seasons of research (2011, 2012) two aphid species from the family Adelgidae and 50 species from the family Aphididae, associated with 66 host plants were recorded. The following species – Eriosoma anncharlotteae Danielsson, 1979, Capitophorus elaeagni (Del Guercio, 1894), Rhopalosiphoninus (Neorhopalosiphoninus) staphyleae staphyleae (Koch, 1854), Eulachnus brevipilosus Börner, 1940 and E. cembrae Börner, 1950 – are new for the Kraków – Wieluń Upland. Seven of the species recorded are regarded as alien to Poland.
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22

COMPTON, ANN. "ART AS EXISTENCE: THE ARTIST'S MONOGRAPH AND ITS PROJECT BY GABRIELE GUERCIO." Art Book 14, no. 4 (November 2007): 55–56. http://dx.doi.org/10.1111/j.1467-8357.2007.00881.x.

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23

Barbagallo, Sebastiano, and Giuseppe E. Cocuzza. "Morphological discrimination of six species of the genus Anuraphis (Hemiptera: Aphididae), including description of a new species." Canadian Entomologist 135, no. 6 (December 2003): 839–62. http://dx.doi.org/10.4039/n02-098.

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AbstractThe most relevant morphometric characteristics of six species of the genus Anuraphis Del Guercio were compared. Anuraphis shaposhnikovisp. nov. is described and its morphological differences from the closely related species Anuraphis subterranea are presented. The new species was collected in Sicily and in the central area of the Italian peninsula on Magydaris pastinacea (Lam.) Paol. (Apiaceae) and Opopanax chironium (L.) Koch (Apiaceae), which are its secondary host plants. A key to the viviparous morphs (apterae and alatae) of the seven western Palaearctic species living on secondary hosts is provided. Discriminant functions have been derived to separate both apterae and alatae of A. shaposhnikovi and A. subterranea.
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Qin, TK, and PJ Gullan. "Taxonomy of the wax scales (Hemiptera : Coccidae: Ceroplastinae) in Australia." Invertebrate Systematics 8, no. 4 (1994): 923. http://dx.doi.org/10.1071/it9940923.

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A comprehensive taxonomic treatment of the wax scales in Australia is presented. Seven species are included; of these, six [Ceroplastes ceriferus (Fabricius), C. destructor Newstead, C. floridensis Comstock, C. insulanus De Lotto, C. rubens Maskell, C. sinensis Del Guercio] were known in Australia previously, and one [Vinsonia stellifera (Westwood)] is recorded from Australia for the first time. The adult females of C. destructor, C. insulanus and C. sinensis, and the immature stages of males and females of C. sinensis are described and illustrated. Keys to the adult females of the seven species known in Australia and to both sexes and different stages of C. sinensis are provided.
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Théry, Thomas, Mariusz Kanturski, and Colin Favret. "Molecular data and species diagnosis in Essigella Del Guercio, 1909 (Sternorrhyncha, Aphididae, Lachninae)." ZooKeys 765 (June 7, 2018): 103–22. http://dx.doi.org/10.3897/zookeys.765.24144.

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Morphological and molecular data are used to describe three new species ofEssigella(Sternorrhyncha: Aphididae: Lachninae):Essigelladomenechisp. n.,Essigellagagnonaesp. n., andEssigellasorensenisp. n.; and to re-establish as validEssigellapatchaeHottes, 1957,stat. n., until now considered a synonym ofE.piniWilson, 1919. The catalogue ofEssigellaspecies is updated. This study highlights the need and utility to use discreet DNA characters in aphid species diagnoses.
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Krems, Eva-Bettina. "Die prontezza des Kardinalnepoten und Guercinos Aurora und Fama. Das Casino Ludovisi in Rom." Zeitschrift für Kunstgeschichte 65, no. 2 (2002): 180. http://dx.doi.org/10.2307/4150683.

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27

Chastanet, Monique. "Boëtsch Gilles, Guerci Antonio, Gueye Lamine, G." Journal des Africanistes, no. 84-1 (February 1, 2014): 289–90. http://dx.doi.org/10.4000/africanistes.3359.

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28

Sigler, Lora. "Guercino’s Paintings and His Patrons’ Policies in Early Modern Italy." European Legacy 20, no. 2 (February 13, 2015): 201–2. http://dx.doi.org/10.1080/10848770.2015.1006940.

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29

Aidoo, Owusu F., Chrysantus M. Tanga, Thomson M. Paris, Sandra A. Allan, Samira A. Mohamed, Fathiya M. Khamis, Mamoudou Sétamou, Christian Borgemeister, and Sunday Ekesi. "Size and shape analysis ofTrioza erytreaeDel Guercio (Hemiptera: Triozidae), vector of citrus huanglongbing disease." Pest Management Science 75, no. 3 (October 16, 2018): 760–71. http://dx.doi.org/10.1002/ps.5176.

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Tamesse, Joseph Lebel, Jean Messi, Emmanuel Silatsa Soufo, Jeannette Kambou, Annaline Bosco Tiago, Alphonse Ondou Ndongo, and Victor Joly Dzokou. "Complexe des parasitoïdes deTrioza erytreae(Del Guercio) (Homoptera : Triozidae), psylle des agrumes au Cameroun." Fruits 57, no. 1 (January 2002): 19–28. http://dx.doi.org/10.1051/fruits:2002003.

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31

Barjadze, Shalva. "First record of Aphis passeriniana (Del Guercio) (Hemiptera: Aphididae) in the Asia Minor peninsula." Annals of Agrarian Science 15, no. 4 (December 2017): 431–33. http://dx.doi.org/10.1016/j.aasci.2017.10.001.

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32

Perlove, Shelley. "Guercino's "Esther Before Ahasuerus" and Cardinal Lorenzo Magalotti, Bishop of Ferrara." Artibus et Historiae 10, no. 19 (1989): 133. http://dx.doi.org/10.2307/1483288.

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33

Flora, Stephen Ray. "No dividing line, prediction and control, and widely applicable general principles: Comment on Guercio (2018)." Behavior Analysis: Research and Practice 19, no. 3 (August 2019): 299–302. http://dx.doi.org/10.1037/bar0000140.

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34

Van Den Berg, M. A., and Cecelia D. Fletcher. "A bibliography of the citrus psylla,Trioza Erytreae (Del Guercio) (Hemiptera: Triozidae), up to 1987." Phytoparasitica 16, no. 1 (March 1988): 47–61. http://dx.doi.org/10.1007/bf02979576.

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35

Benhadi‐Marín, Jacinto, Luís F. Pereira, Isabel Rodrigues, Alberto Fereres, and José Alberto Pereira. "Sampling and distribution pattern of Trioza erytreae Del Guercio, 1918 (Hemiptera: Triozidae) in citrus orchard." Journal of Applied Entomology 145, no. 6 (February 15, 2021): 601–11. http://dx.doi.org/10.1111/jen.12870.

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Urbaneja‐Bernat, Pablo, Estrella Hernández‐Suárez, Alejandro Tena, and Alberto Urbaneja. "Preventive measures to limit the spread of Trioza erytreae (Del Guercio) (Hemiptera: Triozidae) in mainland Europe." Journal of Applied Entomology 144, no. 7 (June 28, 2020): 553–59. http://dx.doi.org/10.1111/jen.12771.

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Samways, M. J. "Weather and monitoring the abundance of the adult citrus psylla,Trioza erytreae(Del Guercio) (Hom., Triozidae)." Journal of Applied Entomology 103, no. 1-5 (January 12, 1987): 502–8. http://dx.doi.org/10.1111/j.1439-0418.1987.tb01015.x.

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38

Cacciaglia, Norberto. "I GUERCI IN MINIERA: (considerazioni sul c. VII dell'Inferno)." Forum Italicum: A Journal of Italian Studies 35, no. 1 (March 2001): 67–79. http://dx.doi.org/10.1177/001458580103500106.

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Kadyrbekov, R. Kh. "NEW DATA ON THE NOMINATIVE SUBGENUS OF THE GENUS MACROSIPHONIELLA DEL GUERCIO, 1911 (HEMIPTERA: APHIDIDAE) FROM PALAEARCTIC." Far Eastern entomologist 388 (August 5, 2019): 1–15. http://dx.doi.org/10.25221/fee.388.1.

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KANTURSKI, MARIUSZ, ŁUKASZ KAJTOCH, and KARINA WIECZOREK. "European species of the aphid genus Eulachnus Del Guercio, 1909 (Hemiptera: Aphididae: Lachninae): revision and molecular phylogeny." Zootaxa 4356, no. 1 (November 27, 2017): 1. http://dx.doi.org/10.11646/zootaxa.4356.1.1.

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The aphid genus Eulachnus in Europe is revised to include 12 species, using an integrative taxonomy approach, based on morphometric, molecular and biological traits. Fundatrix, apterous and alate viviparous female of a new species–Eulachnus stekolshchikovi Kanturski sp. nov. are described. Neotypes are designated for E. agilis, E. brevipilosus and E. nigricola. Lectotypes are designated for E. alticola, E. cembrae, E. rileyi and E. tuberculostemmatus. New synonyms are proposed: E. abameleki syn. nov. (= Cinara pini), E. cretaceus syn. nov. (= E. agilis), E. tauricus syn. nov. (= E. rileyi), E. pallidus syn. nov. (= E. tuberculostemmatus). Eulachnus mingazzinii (near Cinara piniphila) and E. nigrofasciatus (near C. brauni) are regarded as incertae sedis. Full species status is given for E. garganicus stat. nov. and E. ibericus stat. nov. Apterous viviparous female of E. cembrae; apterous and alate viviparous females of remaining species are redescribed. Sexual morphs of E. agilis, E. alticola, E. cembrae, E. intermedius, E. nigricola, E. rileyi and oviparous female of E. tuberculostemmatus are fully redescribed and figured for the first time. Fundatrices of E. agilis, E. brevipilosus, E. cembrae, E. rileyi and E. tuberculostemmatus, sexuales of E. brevipilosus and the alate male of E. tuberculostemmatus are described and figured. A new host plant–Pinus cembra for E. brevipilosus is reported, and this species is recorded for the first time from Czech Republic. Eulachnus tuberculostemmatus is reported for the first time from Croatia. Phylogenetic studies, based on the COI and ITS2 molecular markers, are provided to visualize and discuss the relationships within the European species. COI barcodes are provided for seven species.
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Osborne, Toby. "Daniel M. Unger, Guercino's Paintings and His Patrons' Politics in Early Modern Italy." Seventeenth Century 28, no. 1 (February 2013): 103–4. http://dx.doi.org/10.1080/0268117x.2012.760950.

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HENDERSON, ROSA C., AMIR SULTAN, and ALASTAIR W. ROBERTSON. "Scale insect fauna (Hemiptera: Sternorrhyncha: Coccoidea) of New Zealand’s pygmy mistletoes (Korthalsella: Viscaceae) with description of three new species: Leucaspis albotecta, L. trilobata (Diaspididae) and Eriococcus korthalsellae (Eriococcidae)." Zootaxa 2644, no. 1 (October 13, 2010): 1. http://dx.doi.org/10.11646/zootaxa.2644.1.1.

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The scale insect fauna recorded on the pigmy mistletoe genus Korthalsella (Viscaceae) and New Zealand’s loranthaceous mistletoes is reviewed. Three new species from New Zealand discovered on Korthalsella species during this study are described: the adult female, 2nd-instar male and female nymphs of two pupillarial species Leucaspis albotecta sp. nov. and Leucaspis trilobata sp. nov. (Diaspididae); and the adult female, 2nd-instar male and female nymphs and 1st-instar nymph of Eriococcus korthalsellae sp. nov. (Eriococcidae). A distribution map is provided for the three new species. We report the first records of adventive (exotic) scale insects on Korthalsella species in New Zealand – Ceroplastes sinensis Del Guercio, Coccus hesperidum Linnaeus, soft brown scale, Saissetia coffeae (Walker), hemispherical scale, S. oleae (Olivier), black scale (Coccidae), and Aspidiotus nerii Bouché, oleander scale, Hemiberlesia lataniae (Signoret), latania scale, H. rapax (Comstock), greedy scale (Diaspididae), while three native scale insects are also first records: Kalasiris perforata (Maskell) (Coccidae), Eriococcus pallidus Maskell (Eriococcidae) and Paracoccus glaucus (Maskell) (Pseudococcidae). Ten scale insect species are listed for New Zealand’s loranthaceous mistletoes.
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Dayja, Driss, and Gérard Bignot. "Paleoenvironmental evolution of the Guercif basin (south Rifain corridor, northern morocco). Implications for the Messinian salinity crisis." Bulletin de la Société Géologique de France 174, no. 2 (March 1, 2003): 177–85. http://dx.doi.org/10.2113/174.2.177.

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Abstract Foraminiferal biostratigraphic and paleoenvironmental results from the MDS1 borehole of the Guercif basin reveal the detailed history of its paleogeographic evolution during the late Neogene. Four biostratigraphic events are recognised based on the study of planktonic foraminifera. In addition to the placement of the Tortonian-Messinian boundary at 798 m depth, they also allow correlation of the MSD1 borehole with other late Miocene sections in the Mediterranean area. The diversity of benthic foraminifera is significant in the studied borehole. 111 species assigned to 55 genera, were identified. Three successive assemblages of benthic foraminifera were recognised, each one conveying a different paleoenvironmental information. They thus recorded a number of fundamental changes in the environmental and water mass characteristics of the Guercif basin. Following the oldest upper Tortonian transgressive marine deposits found at the bottom of the borehole, marls accumulated at lower epibathyal to upper mesobathyal depths (~400 to ~800 m). They recorded sea-floor dysoxia and associated stratification of the water column for the time interval between ~7.5 and ~7.3 Ma. During the latest Tortonian-early Messinian the basin experienced a rapid shallowing, first from the previously bathyal environments to deep neritic (~100 to ~200 m), and to shallow neritic afterwards (0 to ~30 m). The total absence of any foraminifera in the conglomerates situated at the top of the study borehole suggests that these sediments were deposited in subaerial environments. At this time the connection between the Atlantic Ocean and the Mediterranean Sea through the South Rifain Corridor was stopped. This local event contributed to the establishment of the particular conditions of the Messinian salinity crisis.
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Görür, Gazi, and Emin Demirtaş. "Phenotypic plasticity in morphological features of Thelaxes suberi (Del Guercio, 1911) (Hemiptera: Aphidoidea) feed on Quercus (L.) species." Journal of Insect Biodiversity 5, no. 8 (May 8, 2017): 1. http://dx.doi.org/10.12976/jib/2017.5.8.

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Phenotypic plasticity is a common and important phenomenon in aphids, particularly in host plant utilization. It has been shown that Thelaxes suberi species fed on three closely related Quercus species showed high amount of phenotypic plasticity in morphological characters. Thelaxes suberi population has the largest morphological features on Quercus infectoria and the smallest morphological features on the Quercus coccifera. It was thought that these differences related with the total protein content and level of amino acid in acorns of the host plant where Thelaxes individuals were collected during this study. Findings of the study indicated how high is phenotypic plasticity capacity of aphid species and interactions with host plant properties. Another important implication of the result is that as aphid has a close relationship with host plant and even small amount of changes in the same Quercus species caused that amount of plasticity in Thelaxes species. Recent ecological changes including climatic fluctuations directly influences host plants morphological/nutritional composition and might also impacts the diversity and distribution of aphid species. Findings were also discussed for possible changes in host plant range of the T. suberi as a result of the current phenotypic plasticity and possible interactions between different types of phenotypic plasticities.
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Beattie, G. A. C., R. G. Weir, A. D. Clift, and L. Jiang. "EFFECT OF NUTRIENTS ON THE GROWTH AND PHENOLOGY OFGASCARDIA DESTRUCTOR(NEWSTEAD) ANDCEROPLASTES SINENSISDEL GUERCIO (HEMIPTERA: COCCIDAE) INFESTING CITRUS." Australian Journal of Entomology 29, no. 3 (August 1990): 199–203. http://dx.doi.org/10.1111/j.1440-6055.1990.tb00349.x.

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46

Benhadi-Marín, Jacinto, Alberto Fereres, and José Alberto Pereira. "A Model to Predict the Expansion of Trioza erytreae throughout the Iberian Peninsula Using a Pest Risk Analysis Approach." Insects 11, no. 9 (August 27, 2020): 576. http://dx.doi.org/10.3390/insects11090576.

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Assessing the potential of spread of an introduced crop pest in a new country is crucial to anticipating its effects on crop production and deriving phytosanitary management toward reducing potential negative effects. Citrus production represents a key agricultural activity throughout the Mediterranean basin. The African citrus psyllid Trioza erytreae (del Guercio, 1918) (Hemiptera: Triozidae) is a natural vector of Candidatusliberibacter spp., the causal agent of the harmful disease huanglongbing (HLB) or “citrus greening disease”. In continental Europe, T. erytreae was detected for the first time in northwestern Spain in 2014. Pest risk analysis (PRA) approaches, such as modeling, consider both time and space components to predict the potential distribution of pests in a given region. In this work, we aim to parameterize a model able to predict the expected spread of T. erytreae in the Iberian Peninsula using three types of PRA models. The kernel model with two hypothetical entry points accurately predicted the distribution of T. erytreae with respect to latitude. This model should be further refined and validated to support decision-makers in the adoption of timely and successful management and regulatory measures against the spread of T. erytreae to other citrus-producing areas in Europe.
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Hernández-Suárez, Estrella, Laura Suárez-Méndez, Moneyba Parrilla, Juan M. Arjona-López, Aurea Hervalejo, and Francisco J. Arenas-Arenas. "Feeding and Oviposition Behaviour of Trioza erytreae (Hemiptera: Triozidae) on Different Citrus Rootstock Material Available in Europe." Insects 12, no. 7 (July 8, 2021): 623. http://dx.doi.org/10.3390/insects12070623.

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Trioza erytreae (Del Guercio, 1918) (Hemiptera: Triozidae) is a vector of Candidatus Liberibacter spp., the causal agent of Huanglongbing disease (HLB). This study evaluates the preference of T. erytreae in different citrus seedlings. Thus, six different non-grafted citrus rootstocks were used for these experiments: (a) Carrizo citrange; (b) Citrus macrophylla; (c) ‘Cleopatra’ mandarin; (d) Forner-Alcaide No. 5; (e) Forner-Alcaide No. 517, and (f) Poncirus trifoliata (‘Flying Dragon’). The behaviour and survival of this psyllid was evaluated through the feeding preference of T. erytreae adults for different rootstocks (in a choice trial under greenhouse conditions) and oviposition and survival of T. erytreae adults on the different citrus material (in a no-choice trial under laboratory conditions). Trioza erytreae showed a clear preference for hosting and feeding on C. macrophylla, and Carrizo citrange was the most suitable rootstock for insect reproduction and survival followed by C. macrophylla. Conversely, Poncirus trifoliata was the least attractive rootstock to T. erytreae adults in the greenhouse trial and led to significantly lower T. erytreae survival. Our results suggest that conventional citrus rootstocks, such as Carrizo citrange and C. macrophylla, could increase T. erytreae populations.
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Hazzat, Najoi El, Rafika Iraqi, Driss Bouya, and Amina Bouseta. "Relationship between fruit ripening and aroma compounds of olives from Guercif area in Morocco." South Asian Journal of Experimental Biology 4, no. 5 (January 20, 2015): 252–60. http://dx.doi.org/10.38150/sajeb.4(5).p252-260.

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Green olives are characterized by a typical flavour mainly due to compounds formed during fruit ripening. Our previous studies have shown that the (Z)-3-hexenal, methional, guaiacol, (E,E)-2,4-decadienal and other terpenes such as α-farnesene significantly contribute to the olive aroma. In the present study, the impact of ripening stage on the aromatic composition of the green olives in Guercif area was evaluated. The extraction of flavours from samples collected at different stages of maturation was performed by simultaneous steam distillation-solvent extraction. The extracts were analyzed by GC-MS and GC-FID-O. The results showed that proportions of odorant compounds with sensory impact on the Moroccan green olives such as (Z)-3-hexenal/hexanal and methional, increased during fruit ripening. The olive fruit sam-ples from area of Guercif were characterized by the dominance of mono-and sesquiterpenes such as γ-terpinene, 3-carene, α-pinene, limonene, 3,7-dimethyl-1,3,7-octatriene, α-farnesene, β-caryophyllene and α-humulene. The monitoring of the aroma composition during olive ripening stage showed that the proportion of the 3,7-dimethyl-1,3,7-octatriene strongly decreases during maturation while the proportions of other monoterpenes characterized by olfactory notes of lemon, green and floral such as γ-terpinene, 3-carene and α-pinene are more important in the final stage of maturation. For the sesquiterpenes class, the formation of β-caryophyllene and α-humulene decreases in favour of the α-farnesene, important aroma compound of table olives. The comparison of volatile fraction of fresh olives at different stages of maturation showed that fruit ripening has an important impact on the formation of aromatic compounds and particularly the key flavours of green olives.
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Furuta, K. "Annual alternating population size of the thuja aphid,Cinara tujafilina(Del Guercio), and the impacts of syrphids and disease." Journal of Applied Entomology 105, no. 1-5 (January 12, 1988): 344–54. http://dx.doi.org/10.1111/j.1439-0418.1988.tb00196.x.

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50

Bonfait, Olivier. "Le public du Guerchin. Recherches sur le marché de l'art à Bologne au XVIIe siècle." Revue d’histoire moderne et contemporaine 38, no. 3 (1991): 401–27. http://dx.doi.org/10.3406/rhmc.1991.1598.

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