Bibliografie tematiche / Spider flowers

Indice

Articoli di riviste
Tesi
Libri
Capitoli di libri
Atti di convegni
Rapporti di organizzazioni

Letteratura scientifica selezionata sul tema "Spider flowers"

Autore: Grafiati

Pubblicato: 4 giugno 2021

Ultima modifica: 20 febbraio 2023

Cita una fonte nei formati APA, MLA, Chicago, Harvard e in molti altri stili

Scegli il tipo di fonte:

Consulta la lista di attuali articoli, libri, tesi, atti di convegni e altre fonti scientifiche attinenti al tema "Spider flowers".

Accanto a ogni fonte nell'elenco di riferimenti c'è un pulsante "Aggiungi alla bibliografia". Premilo e genereremo automaticamente la citazione bibliografica dell'opera scelta nello stile citazionale di cui hai bisogno: APA, MLA, Harvard, Chicago, Vancouver ecc.

Puoi anche scaricare il testo completo della pubblicazione scientifica nel formato .pdf e leggere online l'abstract (il sommario) dell'opera se è presente nei metadati.

Articoli di riviste sul tema "Spider flowers"

Rodríguez-Morales, Dulce, Helena Ajuria-Ibarra, Laura T. Hernández-Salazar, Víctor Rico-Gray, José G. García-Franco, and Dinesh Rao. "Response of flower visitors to the morphology and color of crab spiders in a coastal environment of the Gulf of Mexico." Israel Journal of Ecology and Evolution 66, no. 1-2 (December 19, 2019): 32–40. http://dx.doi.org/10.1163/22244662-20191065.

Testo completo

Abstract (sommario):

Abstract Predation is one of the main interactions between organisms and one of the primary selective agents for their survival. Both prey and predators have developed different strategies and characteristics that allow them to be conspicuous or go undetected. In sit and wait predators, their shape and appearance are important factors that allow them to remain undetected by their potential prey. Sit and wait predators such as crab spiders are difficult to identify when they sit on flowers or areas of flowers with colors similar to the color of their bodies. In this study, we aimed to determine

Gli stili APA, Harvard, Vancouver, ISO e altri

Su, Qichen, Lin Qi, Wei Zhang, Yueli Yun, Yao Zhao, and Yu Peng. "Biodiversity Survey of Flower-Visiting Spiders Based on Literature Review and Field Study." Environmental Entomology 49, no. 3 (April 13, 2020): 673–82. http://dx.doi.org/10.1093/ee/nvaa022.

Testo completo

Abstract (sommario):

Abstract Many arthropods exhibit flower-visiting behavior, including a variety of spider species. However, as spiders are assumed to be strictly predatory, flower-visiting spiders are an often neglected group. We conducted a systematic biodiversity study of flower-visiting spiders based on published papers and field surveys. Most previous studies have focused on the herbivorous behavior of flower-visiting spiders (nectivory or pollinivory) and their effects on host flowers (tritrophic interactions with flower-visiting insects). In our field survey, we utilized standard transect walks (active s

Gli stili APA, Harvard, Vancouver, ISO e altri

Rodríguez-Gironés, Miguel A., and Olga M. Jiménez. "Encounters with predators fail to trigger predator avoidance in bumblebees, Bombus terrestris (Hymenoptera: Apidae)." Biological Journal of the Linnean Society 128, no. 4 (October 12, 2019): 901–8. http://dx.doi.org/10.1093/biolinnean/blz155.

Testo completo

Abstract (sommario):

Abstract Many species must learn to identify their predators, but little is known about the effect of direct encounters on the development of predator avoidance. We asked whether bumblebees, Bombus terrestris, learn to avoid predators, whether learning depends on the conspicuousness of predators and whether bumblebees learn to identify predators or simply to avoid dangerous patches. To answer these questions, we allowed bumblebees to forage in an enclosed meadow of 15 artificial flowers containing a yellow female crab spider, Thomisus onustus. Flowers were yellow in half of the trials and whit

Gli stili APA, Harvard, Vancouver, ISO e altri

Bjärtå, Anna, Anders Flykt, and Örjan Sundin. "The Effect of Using Different Distractor Sets in Visual Search with Spiders and Snakes on Spider-Sensitive and Nonfearful Participants." Swiss Journal of Psychology 72, no. 4 (January 2013): 171–79. http://dx.doi.org/10.1024/1421-0185/a000111.

Testo completo

Abstract (sommario):

In two visual search experiments, we investigated the impact of distractor sets on fear-relevant stimuli by comparing a search set with spiders, snakes, flowers, and mushrooms to one with spiders, snakes, rabbits, and turtles. We found speeded responses to spider and snake targets when flowers and mushrooms, but not when rabbits and turtles served as distractors. In Experiment 2, we compared spider-sensitive to nonfearful participants. Spider-sensitive participants responded faster than nonfearful participants to spider targets when we used flowers and mushrooms as distractors, but not when we

Gli stili APA, Harvard, Vancouver, ISO e altri

Anderson, Sarah Elizabeth, and Andrea Lucky. "Rusty Spider Wasp Tachypompilus ferrugineus." EDIS 2019, no. 5 (September 23, 2019): 4. http://dx.doi.org/10.32473/edis-in1247-2019.

Testo completo

Abstract (sommario):

The rusty spider wasp, Tachypompilus ferrugineus, is a large, reddish orange wasp with conspicuous iridescent blue to violet wings. Aptly named, the rusty spider wasp specializes in hunting large spiders which it paralyzes and provides for its offspring to consume. These eye-catching wasps can be seen perusing loose soil for spider burrows, nectaring at flowers, or dragging large spiders back to their nests.https://edis.ifas.ufl.edu/in1247

Gli stili APA, Harvard, Vancouver, ISO e altri

Ings, Thomas C., and Lars Chittka. "Predator crypsis enhances behaviourally mediated indirect effects on plants by altering bumblebee foraging preferences." Proceedings of the Royal Society B: Biological Sciences 276, no. 1664 (March 4, 2009): 2031–36. http://dx.doi.org/10.1098/rspb.2008.1748.

Testo completo

Abstract (sommario):

Predators of pollinators can influence pollination services and plant fitness via both consumptive (reducing pollinator density) and non-consumptive (altering pollinator behaviour) effects. However, a better knowledge of the mechanisms underlying behaviourally mediated indirect effects of predators is necessary to properly understand their role in community dynamics. We used the tripartite relationship between bumblebees, predatory crab spiders and flowers to ask whether behaviourally mediated effects are localized to flowers harbouring predators, or whether bees extend their avoidance to enti

Gli stili APA, Harvard, Vancouver, ISO e altri

Peira, Nathalie, Armita Golkar, Maria Larsson, and Stefan Wiens. "What You Fear Will Appear." Experimental Psychology 57, no. 6 (January 1, 2010): 470–75. http://dx.doi.org/10.1027/1618-3169/a000058.

Testo completo

Abstract (sommario):

Various experimental tasks suggest that fear guides attention. However, because these tasks often lack ecological validity, it is unclear to what extent results from these tasks can be generalized to real-life situations. In change detection tasks, a brief interruption of the visual input (i.e., a blank interval or a scene cut) often results in undetected changes in the scene. This setup resembles real-life viewing behavior and is used here to increase ecological validity of the attentional task without compromising control over the stimuli presented. Spider-fearful and nonfearful women detect

Gli stili APA, Harvard, Vancouver, ISO e altri

Jevremovic, Sladjana, Milana Trifunovic, Marija Nikolic, Angelina Subotic, and Ljiljana Radojevic. "Clonal fidelity of chrysanthemum regenerated from long term cultures." Genetika 38, no. 3 (2006): 243–49. http://dx.doi.org/10.2298/gensr0603243j.

Testo completo

Abstract (sommario):

Morphological characteristics of flowers of long term regenerated chrysanthemum, cv. "White Spider", after ten years of micropropagation are investigated. Shoot cultures are established and maintained more than ten years by stem segment culture on MS medium supplemented with BAP and NAA (1.0, 0.1 mgL-1, respectively). Rooting of shoots (100 %) has done on MS medium without hormones and it was very successful after ten years, as well as, after two or eight years of micropropagation. Acclimation of rooted chrysanthemum plantlets at greenhouse conditions was excellent and after appropriate photop

Gli stili APA, Harvard, Vancouver, ISO e altri

Meena, Narottam Kumar, Ram Pal, Rajendra Prasad Pant, and Rajendra Prasad Medhi. "Seasonal Incidence of Mite and Infuence of Pesticidal Application on Orchid Flower Production." Journal of Plant Protection Research 53, no. 2 (April 1, 2013): 124–27. http://dx.doi.org/10.2478/jppr-2013-0018.

Testo completo

Abstract (sommario):

Abstract Investigations were carried out in 2010 to determine the influence of abiotic factors on the incidence of the two spotted spider mite; Tetranychus urticae Koch and to determine the influence of pesticides on orchid flower production. Initially, in January, the mite population was very low (1.0 mite/10 cm2 leaf area). The population gradually increased and peaked to 22.98 mites/10 cm2 leaf area in the first fortnight of May along with the rise in temperature and sunshine. Then, the population declined to a low level of 3.43 mites/10 cm2 leaf area in the first fortnight of December. Max

Gli stili APA, Harvard, Vancouver, ISO e altri

Diniz, Suzana, Everton Tizo-Pedroso, Denise Lange, Andréa Andrade Vilela, Danielle G. Justino, Fernanda Alves Martins, Erika Germanos, Rafael Arruda, and Vanessa Stefani. "Might Heterostyly Underlie Spider Occurrence on Inflorescences? A Case Study ofPalicourea rigida(Rubiaceae), a Common Shrub from Brazilian Cerrado." Psyche: A Journal of Entomology 2012 (2012): 1–9. http://dx.doi.org/10.1155/2012/791395.

Testo completo

Abstract (sommario):

We carried out a research on thePalicourea rigida(Rubiaceae) inflorescences, a distylous shrub of Brazilian Cerrado. Our objective was to compare the inflorescence architectural complexity and its quality in the two floral morphs and search for any relationship with spider occurrence. In order to assess the quality of inflorescence resources, we quantified the nectar volume and its sugar concentration and the number of fruits and flowers (intact and aborted) for both inflorescence morphs with and without spiders. For the architectural heterogeneity, we quantified floral structures and inflores

Gli stili APA, Harvard, Vancouver, ISO e altri

Più fonti

Tesi sul tema "Spider flowers"

Hoffmann, Nigel, of Western Sydney Hawkesbury University, of Health Humanities and Social Ecology Faculty, and School of Social Ecology. "Goethe's notion of 'theory' : Goethean phenomenology as a new ecological discipline." THESIS_FHHSE_SEL_Hoffmann_N.xml, 1994. http://handle.uws.edu.au:8081/1959.7/234.

Testo completo

Abstract (sommario):

Around two hundred years ago Goethe made the statement: ‘Let us not seek for something behind the phenomena – they themselves are the theory’. This would appear to be the antithesis of the claim of certain contemporary schools of epistemological thought, that a ‘theory’ is a construction of the human mind. Yet Goethe’s scientific aims are resonant with a present day ecological need: to find a form of ‘nature study’ which springs from a desire to care for things rather than merely to explain them, which can help to create a harmony between human and non-human nature. Goethe’s approach is phenom

Gli stili APA, Harvard, Vancouver, ISO e altri

Brenner, Robert J. "Influence of Neonicotinoid Seed Treatment on Two Co-Occuring Arthropod Pests, Two-Spotted Spider Mite (Tetranychus urticae) and Western Flower Thrips (Frankliniella occidentalis)." Thesis, North Dakota State University, 2019. https://hdl.handle.net/10365/31549.

Testo completo

Abstract (sommario):

Insecticidal neonicotinoid seed treatments in agriculture is a common insect pest management strategy. Seed treatments have systemic and residual toxicity, which are effective against target insect pests. However, effects on other arthropod pests is less straightforward. We evaluated the effects of a neonicotinoid seed treatment, thiamethoxam, on two soybean pests, herbivorous two-spotted spider mites (Tetranychus urticae Koch) and an omnivore and facultative predator of spider mite eggs, western flower thrips (Frankliniella occidentalis Pergande). We used greenhouse and laboratory experiments

Gli stili APA, Harvard, Vancouver, ISO e altri

Feszty, Daniel. "Numerical simulation and analysis of high-speed unsteady spiked body flows." Thesis, University of Glasgow, 2001. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.368552.

Testo completo

Gli stili APA, Harvard, Vancouver, ISO e altri

Chen, Yan. "Nitrogen and phosphorus fertilization of ivy geranium (Pelargonium peltatum) and impatiens (Impatiens wallerana) affects population levels of twospotted spider mite (Tetranychus urticae) and western flower thrips (Frankliniella occidentalis) /." Search for this dissertation online, 2003. http://wwwlib.umi.com/cr/ksu/main.

Testo completo

Gli stili APA, Harvard, Vancouver, ISO e altri

Strandmark, Alma. "Baltic shore-lands facing climate change." Doctoral thesis, Stockholms universitet, Institutionen för ekologi, miljö och botanik, 2017. http://urn.kb.se/resolve?urn=urn:nbn:se:su:diva-141794.

Testo completo

Abstract (sommario):

This thesis provides new insight concerning drivers behind differences in arthropod diversity and abundance in Baltic shore ecosystems and how the arthropod communities might be affected when the conditions in the Baltic Sea are altered due to climate change. The focus has been on climate related changes that are unique for coastal ecosystems, especially sea level rise and changes in the inflow of marine nutrients. As sea levels rise, features in coastal landscapes will be altered, islands and habitats will be flooded and diminished, and structural connectivity within the island landscape wil

Gli stili APA, Harvard, Vancouver, ISO e altri

Cho, Moonsung [Verfasser], Peter [Akademischer Betreuer] Neubauer, Ingo [Akademischer Betreuer] Rechenberg, Klaus [Akademischer Betreuer] Affeld, Peter [Gutachter] Neubauer, Ingo [Gutachter] Rechenberg, Ulrich [Gutachter] Kertzer, and Bournazou Mariano Nicolas [Gutachter] Cruz. "Suspension of a point-mass-loaded filament in non-uniform flows : the ballooning flight of spiders / Moonsung Cho ; Gutachter: Peter Neubauer, Ingo Rechenberg, Ulrich Kertzer, Mariano Nicolas Cruz Bournazou ; Peter Neubauer, Ingo Rechenberg, Klaus Affeld." Berlin : Technische Universität Berlin, 2020. http://d-nb.info/1210572273/34.

Testo completo

Gli stili APA, Harvard, Vancouver, ISO e altri

黃啟嘉. "An Analysis of the Homosexual Movies by Zero Chou : Take《Splendid Float》、《Spider Lilies》and《Drifting Flowers》as examples." Thesis, 2014. http://ndltd.ncl.edu.tw/handle/2wcy8h.

Testo completo

Abstract (sommario):

碩士<br>臺北市立大學<br>視覺藝術學系視覺藝術教學碩士學位班<br>102<br>Taiwan lesbian’s movies have been improved a lot since 2000. No matter in topics or plots, they have been directed in diverse and cultural ways. One of them, Cho Mei-Ling, who directed lesbian trilogies, presented various aspects of unique customs and cultures in Taiwan. This study researches in how Taiwan lesbians came through, how they lived, and what they thought. Especially, that is from the objectives of Cho Mei-Ling who announced herself a lesbian in public. According to the accomplishing moment, the lesbian trilogies of Zero Chou are “Splend

Gli stili APA, Harvard, Vancouver, ISO e altri

Hoffmann, Nigel. "Goethe's notion of 'theory' : Goethean phenomenology as a new ecological discipline." Thesis, 1994. http://handle.uws.edu.au:8081/1959.7/234.

Testo completo

Abstract (sommario):

Gli stili APA, Harvard, Vancouver, ISO e altri

Shuttleworth, Adam. "Ecology and evolution of the specialized hemipepsis-wasp (Hymenoptera : Pompilidae) pollination guild in South Africa." Thesis, 2011. http://hdl.handle.net/10413/10107.

Testo completo

Abstract (sommario):

Pollinators are believed to have played a key role in the radiation of flowering plants. The Grant-Stebbins model of pollinator-mediated speciation, in which evolutionary shifts between pollinators result in phenotypic diversification and enforce reproductive isolation, is one of the most compelling hypotheses for the rapid diversification of angiosperms. A key principle in this model is that plant pollination systems tend towards specialization, resulting in convergent suites of floral traits (syndromes) associated with particular types of pollinators. However, the expectation of pollination

Gli stili APA, Harvard, Vancouver, ISO e altri

Зазуляк, Тарас Григорович, та Taras Hryhorovych Zazulyak. "Оптимізація конструкції станини фрезерного верстата методом комп’ютерного моделювання". Master's thesis, 2021. http://elartu.tntu.edu.ua/handle/lib/35230.

Testo completo

Abstract (sommario):

The purpose and objectives of the master's work - to obtain a new design of the body (frame) of the milling machine with subsequent theoretical study of its rigidity, namely 3D-models of the milling machine to obtain the maximum deviation and its comparison with analytical calculations. Objectives of the study: - perform analysis of the layout of milling machines; - to model a column (bed) of the milling machine; - set restrictions on surfaces that must remain unchanged; - to analyze the method of calculating the stiffness of milling machines; - conduct a theoretical study using CAD Fusi

Gli stili APA, Harvard, Vancouver, ISO e altri

Libri sul tema "Spider flowers"

Hughes, Ted. Flowers and insects: Some birds and a pair of spiders. New York: Knopf, 1986.

Cerca il testo completo

Gli stili APA, Harvard, Vancouver, ISO e altri

1922-, Baskin Leonard, ed. Flowers and insects: Some birds and a pair of spiders. London: Faber and Faber, 1986.

Cerca il testo completo

Gli stili APA, Harvard, Vancouver, ISO e altri

Predator upon a flower: Life history and fitness in a crab spider. Cambridge, MA: Harvard University Press, 2007.

Cerca il testo completo

Gli stili APA, Harvard, Vancouver, ISO e altri

Lizzie, Orme, ed. The country book of herbs & spices. London: Tiger, 1994.

Cerca il testo completo

Gli stili APA, Harvard, Vancouver, ISO e altri

Sheen, Joanna. The country book of herbs & spices. London: Anaya, 1993.

Cerca il testo completo

Gli stili APA, Harvard, Vancouver, ISO e altri

Press, Favorite Recipes, ed. Flights of fancy: A cookbook of fanciful recipes for artful living : edible flowers & herb recipes. Seaside, Fla: Festival Promotions, 1994.

Cerca il testo completo

Gli stili APA, Harvard, Vancouver, ISO e altri

Leeson, Christine. Just for you! Wilton, CT: Tiger Tales, 2004.

Cerca il testo completo

Gli stili APA, Harvard, Vancouver, ISO e altri

Creasy, Rosalind. Rosalind Creasy 's recipes from the garden. North Clarendon, Vt: Tuttle Pub., 2008.

Cerca il testo completo

Gli stili APA, Harvard, Vancouver, ISO e altri

Symposium on Seed Research in Horticulture (4th 1988 Angers, France). Symposium on Seed Research in Horticulture: Flowers, vegetables, medicinal and aromatic plants and spices : Angers, France, September 5-9, 1988. [Wageningen, Netherlands]: International Society for Horticultural Science, 1989.

Cerca il testo completo

Gli stili APA, Harvard, Vancouver, ISO e altri

Herbs for weddings & other celebrations: A treasury of recipes, gifts, & decorations. Pownal, Vt: Storey Communications, 1993.

Cerca il testo completo

Gli stili APA, Harvard, Vancouver, ISO e altri

Più fonti

Capitoli di libri sul tema "Spider flowers"

Kaul, Veenu, and Shveta Saroop. "Bioactive Compounds of Asian Spider Flower (Cleome viscosa Linn.)." In Reference Series in Phytochemistry, 121–39. Cham: Springer International Publishing, 2021. http://dx.doi.org/10.1007/978-3-030-57415-4_8.

Testo completo

Gli stili APA, Harvard, Vancouver, ISO e altri

Kaul, Veenu, and Shveta Saroop. "Bioactive Compounds of Asian Spider Flower (Cleome viscosa Linn.)." In Reference Series in Phytochemistry, 1–19. Cham: Springer International Publishing, 2020. http://dx.doi.org/10.1007/978-3-030-44578-2_8-1.

Testo completo

Gli stili APA, Harvard, Vancouver, ISO e altri

Pallini, Angelo, Arne Janssen, and Maurice W. Sabelis. "Do western flower thrips avoid plants infested with spider mites? Interactions between potential competitors." In Ecology and Evolution of the Acari, 375–80. Dordrecht: Springer Netherlands, 1999. http://dx.doi.org/10.1007/978-94-017-1343-6_27.

Testo completo

Gli stili APA, Harvard, Vancouver, ISO e altri

González, Daniel, Rex Friesen, Thomas F. Leigh, T. Wilson, and M. Waggoner. "Naturally-Occurring Biological Control: Western Flower Thrips Impact on Spider Mites in California Cotton." In Thrips Biology and Management, 317–23. Boston, MA: Springer US, 1995. http://dx.doi.org/10.1007/978-1-4899-1409-5_48.

Testo completo

Gli stili APA, Harvard, Vancouver, ISO e altri

Hancock, James F. "Silk route connections." In Spices, scents and silk: catalysts of world trade, 94–106. Wallingford: CABI, 2021. http://dx.doi.org/10.1079/9781789249743.0008.

Testo completo

Abstract (sommario):

Abstract This chapter elaborates the landscape of political power and Silk trade in the Middle East. It consists of eleven subchapters which are about the empires of the Middle East, Roman intrusions into the Middle East, Palmyra as the greatest of the Middle Eastern trading centres, the power of Zenobia, Kushans take the centre of the silk routes, Kushan Connections, Parthia's control of the Terminus, Sasanians taking over, ebbs and flows of the silk route, plague that slowed the trade, and lastly, silk trade after 400 ce.

Gli stili APA, Harvard, Vancouver, ISO e altri

Morgan, Lynette. "Background and history of hydroponics and protected cultivation." In Hydroponics and protected cultivation: a practical guide, 1–10. Wallingford: CABI, 2021. http://dx.doi.org/10.1079/9781789244830.0001.

Testo completo

Abstract (sommario):

Abstract Along with new types of protected cropping structures, materials and technology, the range and diversity of hydroponic crops grown are also expanding. While the greenhouse mainstays of nursery plants, tomatoes, capsicum, cucumber, salad vegetables and herbs will continue to expand in volume, newer, speciality and niche market crops are growing in popularity. These include new cut flower species, potted plants and ornamental crops, and a growing trend in the commercial production of medicinal herbs using high-technology methods such as aeroponics. Exotic culinary herbs such as wasabi, dwarf fruiting trees and spices such as ginger and vanilla are now grown commercially in protected cropping structures, while many home gardeners continue to take up hydroponics and protected cropping as both a hobby and a means of growing produce. Protected cropping and hydroponic methods will further their expansion into hostile climates which never previously allowed the production of food.

Gli stili APA, Harvard, Vancouver, ISO e altri

Hage, Hassan, Emmanouil Seferis, Vahid Hashemi, and Frank Mantwill. "SMC4PEP: Stochastic Model Checking of Product Engineering Processes." In Fundamental Approaches to Software Engineering, 155–62. Cham: Springer International Publishing, 2022. http://dx.doi.org/10.1007/978-3-030-99429-7_9.

Testo completo

Abstract (sommario):

AbstractProduct Engineering Processes (PEPs) are used for describing complex product developments in big enterprises such as automotive and avionics industries. The Business Process Model Notation (BPMN) is a widely used language to encode interactions among several participants in such PEPs. In this paper, we present SMC4PEPl as a tool to convert graphical representations of a business process using the BPMN standard to an equivalent discrete-time stochastic control process called Markov Decision Process (MDP). To this aim, we first follow the approach described in an earlier investigation to generate a semantically equivalent business process which is more capable of handling the PEP complexity. In particular, the interaction between different levels of abstraction is realized by events rather than direct message flows. Afterwards, SMC4PEPl converts the generated process to an MDP model described by the syntax of the probabilistic model checking tool PRISM. As such, SMC4PEPl provides a framework for automatic verification and validation of business processes in particular with respect to requirements from legal standards such as Automotive SPICE. Moreover, our experimental results confirm a faster verification routine due to smaller MDP models generated from the alternative event-based BPMN models.

Gli stili APA, Harvard, Vancouver, ISO e altri

"Mulberrys, sauce and spider-orchids." In Flowers of the Forest, 182–84. Princeton University Press, 2010. http://dx.doi.org/10.1515/9780691237602-045.

Testo completo

Gli stili APA, Harvard, Vancouver, ISO e altri

Willmer, Pat. "Pollination by Bees." In Pollination and Floral Ecology. Princeton University Press, 2011. http://dx.doi.org/10.23943/princeton/9780691128610.003.0018.

Testo completo

Abstract (sommario):

This chapter considers pollination by bees, or melittophily. The bee flower syndrome involves flowers that have medium to long corolla tubes, often pendant, usually zygomorphic (i.e., bilaterally symmetrical rather than radial), commonly with a landing platform with complex texture or ridging so that a bee can hang on easily, and often arranged in spiked inflorescences. The flowers typically open in the early morning and offer their main rewards before midday, although a few are particularly rewarding in the evenings. The chapter begins with a discussion of the bee’s feeding apparatus and feeding methods, along with sensory systems and bee perception of flowers. It then examines the effects of sociality on bees’ flower-visiting patterns as well as behavior and learning in flower-visiting bees. Finally, it analyzes six melittophily types namely: solitary bees, carpenter bees, euglossine bees, bumblebees, stingless bees, and honeybees.

Gli stili APA, Harvard, Vancouver, ISO e altri

"Xysticus emertoni, a Cohabiting Crab Spider." In Predator upon a Flower, 304–18. Harvard University Press, 2007. http://dx.doi.org/10.2307/j.ctv23dxd2z.14.

Testo completo

Gli stili APA, Harvard, Vancouver, ISO e altri

Atti di convegni sul tema "Spider flowers"

Otte, Eileen, Christina Alpmann, and Cornelia Denz. "Tailored vectorial light fields: flower, spider web and hybrid structures." In SPIE Technologies and Applications of Structured Light, edited by Takashige Omatsu. SPIE, 2017. http://dx.doi.org/10.1117/12.2274935.

Testo completo

Gli stili APA, Harvard, Vancouver, ISO e altri

Welti, Ellen. "Crab spiders (Thomisidae) attract insect flower-visitors without UV signaling." In 2016 International Congress of Entomology. Entomological Society of America, 2016. http://dx.doi.org/10.1603/ice.2016.113748.

Testo completo

Gli stili APA, Harvard, Vancouver, ISO e altri

Grudzinski, J. J., R. Fischer, R. L. Talaga, V. Guarino, A. Pla-Dalmau, J. E. Fagan, and C. Grozis. "Evaluation of Mechanical Properties at the Knit Line Interface in a Complex Multi-Cell PVC Extrusion." In ASME 2014 International Mechanical Engineering Congress and Exposition. American Society of Mechanical Engineers, 2014. http://dx.doi.org/10.1115/imece2014-40217.

Testo completo

Abstract (sommario):

In order to form internal cells in PVC extrusions, the die requires an insert or internal member that the material flows past. These inserts are supported to the outer die structure by so-called spiders that pass through to the outer wall of the extrusion die. The extruded material must separate and then recombine as it passes over the spider. The material must then form a bond at this interface shortly before exiting the die. These interfaces are referred to as knit-lines. In a recent project involving a large and complex PVC extrusion, difficulty was encountered in developing these knit line

Gli stili APA, Harvard, Vancouver, ISO e altri

YAMAUCHI, MASAFUMI, KOZO FUJII, YOSHIAKI TAMURA, and FUMIO HIGASHINO. "Numerical investigation of supersonic flows around a spiked blunt-body." In 31st Aerospace Sciences Meeting. Reston, Virigina: American Institute of Aeronautics and Astronautics, 1993. http://dx.doi.org/10.2514/6.1993-887.

Testo completo

Gli stili APA, Harvard, Vancouver, ISO e altri

Kish, Laszlo B. "Stochastic Resonance in interacting flows of cars and neural spikes." In Unsolved problems of noise and fluctuations. AIP, 2000. http://dx.doi.org/10.1063/1.59973.

Testo completo

Gli stili APA, Harvard, Vancouver, ISO e altri

Feszty, D., K. Badcock, and B. Richards. "Numerical simulation of the hysteresis phenomenon in high-speed spiked body flows." In 38th Aerospace Sciences Meeting and Exhibit. Reston, Virigina: American Institute of Aeronautics and Astronautics, 2000. http://dx.doi.org/10.2514/6.2000-141.

Testo completo

Gli stili APA, Harvard, Vancouver, ISO e altri

Post, Madison J., and Richard E. Cupp. "The Effects of CO2 Gain-Switched Spikes on Estimating Lidar Doppler Shifts." In Coherent Laser Radar. Washington, D.C.: Optica Publishing Group, 1991. http://dx.doi.org/10.1364/clr.1991.mb2.

Testo completo

Abstract (sommario):

We reported earlier1 that, despite having achieved single-mode output from the TEA laser in NOAA’s pulsed Doppler lidar, we could not estimate Doppler shifts to accuracies better than 100 kHz rms, or about 0.6 m s–1 using a complex pulse-pair algorithm. Inaccuracies of this magnitude are acceptable for mesoscale or terrain-induced flows, but they limit the usefulness of the lidar in studying convective flows and turbulent transfers, where accuracies near 0.1 m s–1 are required.

Gli stili APA, Harvard, Vancouver, ISO e altri

Im, Hong-Sik, Xiangying Chen, and Ge-Cheng Zha. "Detached Eddy Simulation of Unsteady Stall Flows of a Full Annulus Transonic Rotor." In ASME Turbo Expo 2010: Power for Land, Sea, and Air. ASMEDC, 2010. http://dx.doi.org/10.1115/gt2010-23465.

Testo completo

Abstract (sommario):

This paper uses the advanced Delayed-Detached Eddy Simulation (DDES) of turbulence to simulate rotating stall inception of NASA Rotor 67. The rotor is a low-aspect-ratio transonic axial-flow fan with a tip speed of 429 m/s and a pressure ratio of 1.63. A full annulus simulation was employed with the time accurate compressible Navier-Stokes code in order to accurately capture the the formation of long-length disturbance and a short-length inception (spike). The validation for all numerical methods used in this study was accomplished by the comparisons of the CFD solutions with the test data in

Gli stili APA, Harvard, Vancouver, ISO e altri

Nishioka, Takahiro, Toshio Kanno, and Hiroshi Hayami. "Characteristics of End-Wall Flow at Spike and Modal Stall Inceptions in a Variable-Pitch Axial-Flow Fan." In ASME Turbo Expo 2007: Power for Land, Sea, and Air. ASMEDC, 2007. http://dx.doi.org/10.1115/gt2007-27738.

Testo completo

Abstract (sommario):

The flow mechanisms for spike and modal stall inceptions in a low-speed axial-flow fan with a relatively large tip clearance were studied. The pressure and velocity fluctuations were measured to clarify the influences of blade loading, end-wall flow, and tip-leakage flow on stall inception at two stagger-angle settings for the rotor blade, which are the design and small stagger-angle settings. A rotating instability was observed near the maximum pressure-rise point at both design and small stagger-angle settings. This instability was induced by the interaction between the incoming flow, tip-le

Gli stili APA, Harvard, Vancouver, ISO e altri

Zhang, J., F. Lin, J. Chen, and C. Nie. "The Flow Mechanism of How Distorted Flows Deteriorate Stability of an Axial Flow Compressor." In ASME Turbo Expo 2007: Power for Land, Sea, and Air. ASMEDC, 2007. http://dx.doi.org/10.1115/gt2007-27628.

Testo completo

Abstract (sommario):

The stalling behavior in a single-stage low-speed axial compressor under inlet distortion is investigated. A blade-passage-scale flow mechanism is proposed to explain the stability deterioration caused by inlet distortion for the tested compressor exhibiting spike stall inception. In contrast to the existing understanding of inlet distortion based on system scale dynamics, the main elements of this flow mechanism are the unsteady behavior of tip leakage vortices (TLV) under inlet distortion; its effect on the initiation of spike flow disturbances, and its interaction with distorted sectors. Ro

Gli stili APA, Harvard, Vancouver, ISO e altri

Rapporti di organizzazioni sul tema "Spider flowers"

Philosoph-Hadas, Sonia, Peter Kaufman, Shimon Meir, and Abraham Halevy. Signal Transduction Pathway of Hormonal Action in Control and Regulation of the Gravitropic Response of Cut Flowering Stems during Storage and Transport. United States Department of Agriculture, October 1999. http://dx.doi.org/10.32747/1999.7695838.bard.

Testo completo

Abstract (sommario):

Original objectives: The basic goal of the present project was to increase our understanding of the cellular mechanisms operating during the gravitropic response of cut flowers, for solving their bending problem without affecting flower quality. Thus, several elements operating at the 3 levels o the gravity-induced signal transduction pathway, were proposed to be examined in snapdragon stems according to the following research goals: 1) Signaling: characterize the signal transduction pathway leading to the gravitropic response, regarding the involvement of [Ca2+]cyt as a mediator of IAA moveme

Gli stili APA, Harvard, Vancouver, ISO e altri

Philosoph-Hadas, Sonia, Peter B. Kaufman, Shimon Meir, and Abraham H. Halevy. Inhibition of the Gravitropic Shoot Bending in Stored Cut Flowers Through Control of Their Graviperception: Involvement of the Cytoskeleton and Cytosolic Calcium. United States Department of Agriculture, December 2005. http://dx.doi.org/10.32747/2005.7586533.bard.

Testo completo

Abstract (sommario):

Original objectives: The basic goal of the present project was to study the mechanism involved in shoot graviperception and early transduction, in order to determine the sequence of events operating in this process. This will enable to control the entire process of gravity-induced differential growth without affecting vertical growth processes essential for development. Thus, several new postulated interactions, operating at the perception and early transduction stages of the signaling cascade leading to auxin-mediated bending, were proposed to be examined in snapdragon spikes and oat shoot pu

Gli stili APA, Harvard, Vancouver, ISO e altri

Beirne, John, and Eric Sugandi. Risk-Off Shocks and Spillovers in Safe Havens. Asian Development Bank Institute, November 2022. http://dx.doi.org/10.56506/guux7790.

Testo completo

Abstract (sommario):

We examine real and financial spillovers to safe haven financial flow destinations due to risk-off shocks in global financial markets. Using country-specific structural vector autoregression models over the period 1990 to 2021, we show that dynamics for Japan appear to be different to those of Switzerland and the United States in four main ways. First, in response to risk-off episodes over the estimation period, the yen real effective exchange rate appreciates sharply and significantly, with the effect persisting over time. Second, no significant effects on portfolio flows to Japan are found,

Gli stili APA, Harvard, Vancouver, ISO e altri

Swanson, David, and Celia Hampton-Miller. Drained lakes in Bering Land Bridge National Preserve: Vegetation succession and impacts on loon habitat. National Park Service, January 2023. http://dx.doi.org/10.36967/2296593.

Testo completo

Abstract (sommario):

The northern coastal plain of Bering Land Bridge National Preserve (BELA) lost lakes at an alarming rate over the first two decades of this century, including four lakes over 100 ha in size in 2018-2019 alone. To understand the effects of these lake drainages, we sampled vegetation of these lakes in 2019 (a reconnaissance visit) and 2021 (for the installation of permanent vegetation monitoring plots). We used these data to summarize the changes that occurred in the first three years after drainage, and to create vegetation maps from 3-m resolution satellite images coinciding with the visit dat

Gli stili APA, Harvard, Vancouver, ISO e altri

Offriamo sconti su tutti i piani premium per gli autori le cui opere sono incluse in raccolte letterarie tematiche. Contattaci per ottenere un codice promozionale unico!