822 research outputs found
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Doctoral thesis recital (tuba) chamber
No full textHashtags. #Satinsheets -- #Ginandoctatonic -- #Itsnotgood -- #Secretchord -- #Ittakestwo -- #Halftime -- #Thegreatestthing -- #Dialup -- #Bowlcut -- #Tag -- #Hashtags. (FivE: Alex Avila, Drew Bonner, Luke Gall, Mitch Mest, euphoniums)Musi
The Relationship of Oak Gall Size to Lichen Proximity on Quercus garryana
No full textOak galls are formed when a female gall wasp lays her eggs on the host plant. She then injects the host plant with a toxin that makes the plant form a tumor around her eggs, protecting them. Oak galls and lichen both use the same nutrients, resulting in competition for nutrition and space on a tree. Our data was collected at the Glacial Heritage Preserve in Thurston County, Washington. The purpose of this paper is to study the relationship between oak gall placement and the presence of lichen on twigs. We measured the diameter of an oak gall and then measured the distance between the oak gall and lichen growth. There is an extremely strong positive correlation (R-square of 0.7994) between oak gall size and the distance the lichen grows from the gall. The relationship is apparent when the oak gall is very large because then there was little to no lichen. There also seems to be a relationship between the age of the twig and the placement of the gall on it
Clinical findings and prognostic factors for dogs undergoing cholecystectomy for gall bladder mucocele
No full textObjective: To report clinical findings and explore prognostic factors for dogs that had cholecystectomy for gall bladder mucocele. Study Design: Retrospective case series. Animals: Dogs (n = 43) with gall bladder mucoceles. Results: Diagnosis of gall bladder mucoceles was confirmed by histopathology and 74% were diagnosed based on preoperative abdominal ultrasonography. Intraoperative evidence of gall bladder rupture was noted in 10 dogs (23%), and 16 (37%) had evidence of previous leakage in the abdominal cavity. One dog had positive bacterial growth from the gall bladder content. The most common histopathologic findings in liver biopsies obtained at surgery were cholangiohepatitis, biliary hyperplasia, or cholestasis. Univariate analysis showed evidence of postoperative hypotension (P = .05) to be significantly negatively associated with survival. Significant difference in mean postoperative serum lactate (P = .034) and postoperative packed cell volume (P = .063) between dogs that survived and died was also noted. Conclusions: Elevations in postoperative serum lactate concentrations and immediate postoperative hypotension in dogs undergoing cholecystectomy for gall bladder mucoceles are associated with poor clinical outcome
TPACK and Music Teacher Education
No full textI have been researching music technology in schools and teacher education since 2000, when I led the music team within a large-scale project that explored teachers’ use of technology across seven school subjects.1 As part of our research, the music team used Shulman’s Pedagogical Content Knowledge (PCK) framework (1987) to further our thinking about inservice teachers’ work in classrooms with music technology, and also as a lens through which to consider teachers’ perceptions of technology in school music (Gall and Breeze, 2007). At the time I was not aware of developments by Pierson (2001) who, as part of a discussion on ways in which technology (T) impacts upon teaching, transformed the model to include Technological Pedagogical Content Knowledge (TPCK). From 2006 to 2009 I also engaged in an international project, part of which included the development of a set of descriptors to indicate the musical competences one might expect of music educators across Europe.
TPACK and Music Teacher Education
No full textI have been researching music technology in schools and teacher education since 2000, when I led the music team within a large-scale project that explored teachers’ use of technology across seven school subjects.1 As part of our research, the music team used Shulman’s Pedagogical Content Knowledge (PCK) framework (1987) to further our thinking about inservice teachers’ work in classrooms with music technology, and also as a lens through which to consider teachers’ perceptions of technology in school music (Gall and Breeze, 2007). At the time I was not aware of developments by Pierson (2001) who, as part of a discussion on ways in which technology (T) impacts upon teaching, transformed the model to include Technological Pedagogical Content Knowledge (TPCK). From 2006 to 2009 I also engaged in an international project, part of which included the development of a set of descriptors to indicate the musical competences one might expect of music educators across Europe.
A fossil aphid gall from the middle Pleistocene sediment in Hyogo Prefecture, western Japan
No full textWe described the external morphology of a fossil insect gall collected from the middle Pleistocene sediment in the Osaka Group of Nishinomiya City, Hyogo Prefecture, western Japan. The fossil was well preserved without major compression and was identified as a gall induced by an aphid species of the genus Nipponaphis (Nipponaphidini: Hormaphidinae: Aphididae), based on its external morphology. This is the first reliable fossil record of an Aphididae gall. This fossil provides evidence that the intimate aphid-plant association can be traced back to the middle Pleistocene, approximately 0.4 million years ago
Catocala blandula Gall & Hawks, 2010, syn. n.
No full text<i>Catocala blandula</i> syn. <i>manitobensis</i> Cassino, syn. n. <p> <i>Catocala blandula</i> var. <i>manitobensis</i> Cassino, 1918b: 81</p> <p> <i>Catocala blandula</i> ssp. <i>manitobensis</i>; McDunnough 1938: 118</p> <p> <i>Catocala blandula</i> ssp. <i>manitobensis</i>; Franclemont and Todd 1983: 129</p> <p> <b>Type material.</b> <i>Catocala manitobensis</i>: the original description states “ Holotype 1 ♁, 6 paratypes, in the collection of the author, Cartwright, Manitoba, July 17.” A female at the USNM (USNM Type No. 44528) bears a label stating “manitobensis / Cass. / Type fide / Buchholz.” Because Cassino often missexed his material, we see no reason to challenge Buchholz’s judgment, and accept this specimen as the holotype by original designation. Cassino tabulated several characteristics supposedly distinguishing <i>C. m. manitobensis</i> from nominate <i>C. blandula</i> Hulst, 1884. On the dorsal forewing these included: a darker and more distinct postmedian band; a light to absent brown scaling distad from the postmedian band; and a lighter and bluish ground color, such that “the whole effect of the superiors is a bluish tint quite unlike that of <i>blandula</i>, the scales of which are more brownish.” We have examined specimens of <i>C. m. manitobensis</i> (including paratypes) and nominate <i>C. blandula</i> from across the Nearctic, and find that the characteristics ascribed to <i>C. m. manitobensis</i> occur sporadically throughout the species’ entire geographic range, especially in females, and see little merit in retaining the name <i>manitobensis</i>. Exemplary localities where specimens often show <i>manitobensis</i> characteristics include the vicinity of Chicago, Illinois, and the eastern seaboard of Maine and maritime Canada; the same characteristics also appear regularly in what we presently consider to be <i>C. blandula</i> populations from lowland coastal areas in the southeastern USA (e.g., notably around Gainesville, Florida). These lowland <i>C. blandula</i> populations are among the most morphologically variable known: some Floridian specimens (especially females) are nearly identical to types of <i>C. manitobensis</i>, whereas others have the entire forewing pattern obscured by brownish black, and numerous intergrades occur. In many respects, the extreme variation in these southeastern <i>C. blandula</i> populations is analogous to the extreme infrapopulational forms of both <i>C. connubialis</i> Guenée, 1852 and <i>C. crataegi</i> Saunders, 1876 seen from the same geographic region. Type Locality: Cartwright, Manitoba, [Canada].</p>Published as part of <i>Gall, Lawrence & Hawks, David, 2010, Systematics of moths in the genus Catocala (Lepidoptera, Erebidae) IV. Nomenclatorial stabilization of the Nearctic fauna, with a revised synonymic check list, pp. 37-83 in ZooKeys 39 (39)</i> on page 61, DOI: 10.3897/zookeys.39.425, <a href="http://zenodo.org/record/576632">http://zenodo.org/record/576632</a>
Spatiotemporal fluctuations in natural selection acting on the gall-parasitic aphid Tetraneura sorini
No full textThe measurement of the selection gradient is crucial for understanding the magnitude of selection acting directly on a trait and predicting the evolutionary trajectory of that trait. This study evaluated the selection gradient acting on the morphology of the gall-parasitic aphid Tetraneura sorini during the galling process and compared the strength among populations. Gall formers (first instars) frequently fight with conspecifics or heterospecifics for usurping incipient galls using their well-developed hind legs. First instars that successfully acquired galls were found within galls, whereas those that failed were found dead on leaf surfaces. Selection gradients were estimated using logistic stepwise regression and partial least square (PLS) regression. Calculated selection differentials indicated that first instars that secured galls were larger in body size than failed individuals through all populations. However, selection gradients on weapon traits varied largely among populations or among years in the same population. We confirmed microevolutionary changes in the relationship between traits, which accorded with the expectation from changes in the selection gradients. When gall formers were transferred onto developing buds individually, individuals that successfully induced galls had smaller body size than failed individuals. Available evidence suggests that the selection gradient on body size becomes higher with an increasing proportion of T. sorini in the Tetraneura species community. Thus, we concluded that more intense fighting with conspecifics leads to stronger selective pressure on body size, but that selective pressure for each trait is variable depending on differences in the tactics and species composition among populations
Alternative Proposal Plans for the Valhallas
No full textThe purpose of this paper is to first provide evidence that the Valhalla Mountain Area should in fact be included in some preservation system of the British Columbia Parks Branch. Secondly, it offers three alternative land use schemes that could be used as a basis for a management preservation system for the Valhallas.
A Systems Planning Study was undertaken to show the natural, biological, physiological and geological divisions that make up the Valhalla area. The objective of this study was to indicate the diversity of natural features that the Valhalla Mountains contain.
The paper studies how well the Columbia Mountains Natural Region is represented by the present Provincial Parks in the West Kootenay Area. It was found that the Valhalla Area was more representative of this natural region than other existing Provincial Parks in the West Kootenays.Student paper submitted Wildland Recreation 274
Plant-mediated interactions among gall forming insects
No full text2020 Spring.Includes bibliographical references.Russian knapweed (Rhaponticum (=Acroptilon) repens (L.) Hidalgo) is one of the most troubling exotic weeds throughout the western United States invading many public and private lands. A classical biological control agents, the gall midge (Jaapiella ivannikovi Fedotova), is a parasite on Russian knapweed, forming galls on the plant, inside which J. ivannikovi broods feed and develop. This system provides an opportunity to consider plant-mediated interactions between midge individuals and considered the merits of integrating other weed management techniques (grazing, mowing, and chemical control before insect release) with biological control. To accomplish this, I conducted releases of gall midge agents at replicated sites throughout Colorado, field cage experiments with simulated grazing, and greenhouse studies. We found that J. ivannikovi initially established across Colorado, however, failed to maintain populations in subsequent years. Interestingly, grazing increases J. ivannikovi establishment. Of further note, J. ivannikovi broods compete with one another even when feeding on different parts of the plant. The results of these experiments indicate that integrating management techniques can increase biocontrol agent establishment. I also question how effective this midge is at reducing Russian knapweed flowering and vegetative growth in the field. This research resulted in recommendations regarding the most judicious use of J. ivannikovi biocontrol agents in terms of where and when agents are most effective for management, and practitioners at the Colorado Department of Agriculture Palisade Insectary have adjusted their strategies accordingly
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