Academic literature on the topic 'Plant ant'

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Journal articles on the topic "Plant ant"

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Herbers, Joan M. "Ant-Plant Interactions." American Entomologist 39, no. 1 (1993): 47–48. http://dx.doi.org/10.1093/ae/39.1.47a.

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Lock, J. M., Camilla R. Huxley, and David F. Cutler. "Ant-Plant Interactions." Kew Bulletin 50, no. 1 (1995): 182. http://dx.doi.org/10.2307/4114630.

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Keeler, Kathleen H. "Ant-Plant Interactions." Ecology 68, no. 1 (February 1987): 235–36. http://dx.doi.org/10.2307/1938832.

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Mori, Scott A., Camilla R. Huxley, and David F. Cutler. "Ant-Plant Interactions." Brittonia 44, no. 3 (July 1992): 385. http://dx.doi.org/10.2307/2806946.

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Kodet, R. T. "Ant-Plant Ecology." Bulletin of the Entomological Society of America 33, no. 4 (December 1, 1987): 261. http://dx.doi.org/10.1093/besa/33.4.261.

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Volp, Trevor M., and Lori Lach. "An Epiphytic Ant-Plant Mutualism Structures Arboreal Ant Communities." Environmental Entomology 48, no. 5 (July 15, 2019): 1056–62. http://dx.doi.org/10.1093/ee/nvz083.

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Abstract Arboreal ant communities are primarily structured by interactions among ant species, food availability, and physical structures within the environment. Epiphytes are a common feature of tropical forests that can provide ants with both food and nesting space. To date, little work has examined what role epiphytic ant-plants play in structuring arboreal ant communities. We surveyed ant species inhabiting the Australian epiphytic ant-plant Myrmecodia beccarii Hook.f. (Gentianales: Rubiaceae) and how arboreal ant communities are structured in relation to M. beccarii presence on trees. Myrmecodia beccarii was inhabited by the ant Philidris cordata Smith, F. (Hymenoptera: Formicidae) on the majority of Melaleuca viridiflora Sol. Ex Gaertn. (Myrtales: Myrtaceae) trees with ant-occupied ant-plants at our two sites. Dominant arboreal ant species at both study sites exhibited discrete, nonoverlapping distributions, and C-score analysis detected an ant mosaic at one site. The distribution of P. cordata was limited by the distribution of ant-plants for both sites. Philidris cordata dominance on trees was also determined by the presence of M. beccarii occupied by P. cordata at both sites. We suggest that by providing P. cordata with nesting space M. beccarii plays a role in structuring these arboreal ant communities.
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Nelsen, Matthew P., Richard H. Ree, and Corrie S. Moreau. "Ant–plant interactions evolved through increasing interdependence." Proceedings of the National Academy of Sciences 115, no. 48 (November 12, 2018): 12253–58. http://dx.doi.org/10.1073/pnas.1719794115.

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Ant–plant interactions are diverse and abundant and include classic models in the study of mutualism and other biotic interactions. By estimating a time-scaled phylogeny of more than 1,700 ant species and a time-scaled phylogeny of more than 10,000 plant genera, we infer when and how interactions between ants and plants evolved and assess their macroevolutionary consequences. We estimate that ant–plant interactions originated in the Mesozoic, when predatory, ground-inhabiting ants first began foraging arboreally. This served as an evolutionary precursor to the use of plant-derived food sources, a dietary transition that likely preceded the evolution of extrafloral nectaries and elaiosomes. Transitions to a strict, plant-derived diet occurred in the Cenozoic, and optimal models of shifts between strict predation and herbivory include omnivory as an intermediate step. Arboreal nesting largely evolved from arboreally foraging lineages relying on a partially or entirely plant-based diet, and was initiated in the Mesozoic, preceding the evolution of domatia. Previous work has suggested enhanced diversification in plants with specialized ant-associated traits, but it appears that for ants, living and feeding on plants does not affect ant diversification. Together, the evidence suggests that ants and plants increasingly relied on one another and incrementally evolved more intricate associations with different macroevolutionary consequences as angiosperms increased their ecological dominance.
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OÑA, L., and M. LACHMANN. "Ant aggression and evolutionary stability in plant-ant and plant-pollinator mutualistic interactions." Journal of Evolutionary Biology 24, no. 3 (December 22, 2010): 617–29. http://dx.doi.org/10.1111/j.1420-9101.2010.02200.x.

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Pringle, Elizabeth G. "Harnessing ant defence at fruits reduces bruchid seed predation in a symbiotic ant–plant mutualism." Proceedings of the Royal Society B: Biological Sciences 281, no. 1785 (June 22, 2014): 20140474. http://dx.doi.org/10.1098/rspb.2014.0474.

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In horizontally transmitted mutualisms, mutualists disperse separately and reassemble in each generation with partners genetically unrelated to those in the previous generation. Because of this, there should be no selection on either partner to enhance the other's reproductive output directly. In symbiotic ant–plant mutualisms, myrmecophytic plants host defensive ant colonies, and ants defend the plants from herbivores. Plants and ants disperse separately, and, although ant defence can indirectly increase plant reproduction by reducing folivory, it is unclear whether ants can also directly increase plant reproduction by defending seeds. The neotropical tree Cordia alliodora hosts colonies of Azteca pittieri ants. The trees produce domatia where ants nest at stem nodes and also at the node between the peduncle and the rachides of the infloresence. Unlike the stem domatia, these reproductive domatia senesce after the tree fruits each year. In this study, I show that the tree's resident ant colony moves into these ephemeral reproductive domatia, where they tend honeydew-producing scale insects and patrol the nearby developing fruits. The presence of ants significantly reduced pre-dispersal seed predation by Amblycerus bruchid beetles, thereby directly increasing plant reproductive output.
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Vesprini, José L., Leonardo Galetto, and Gabriel Bernardello. "The beneficial effect of ants on the reproductive success of Dyckia floribunda (Bromeliaceae), an extrafloral nectary plant." Canadian Journal of Botany 81, no. 1 (January 1, 2003): 24–27. http://dx.doi.org/10.1139/b03-003.

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Dyckia floribunda is a perennial herb from the Argentinian Chaco with extrafloral nectaries. Ants visited these nectaries while patrolling inflorescences and infructescences. We anticipated that ants attracted to extrafloral nectaries might protect the reproductive organs, increasing plant reproductive output. To evaluate the possibility of mutualism between D. floribunda and ant visitors, we determined whether ant-accessible plants showed a higher seed production than ant-excluded plants. Experimental fieldwork suggested a decrease in fruit set of ant-excluded plants compared with ant-accessible plants but the seed number per fruit was not affected by ant exclusion. Thus, total seed number per plant was highly reduced in treated spikes. Analyses of covariance confirmed these trends, indicating that total seed production per plant was strongly affected by ant exclusion. This study marks the first experimental report of this mutualistic association in Bromeliaceae.Key words: ant–plant interaction, Bromeliaceae, Chaco, Dyckia floribunda, fruit set, seed set, mutualism.
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Dissertations / Theses on the topic "Plant ant"

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Puterbaugh, Mary Norris. "Alpine plant-ant interactions /." free to MU campus, to others for purchase, 1997. http://wwwlib.umi.com/cr/mo/fullcit?p9841329.

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Edwards, David P. "Mutualism and cheating in a Peruvian ant-plant symbiosis." Thesis, University of East Anglia, 2005. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.423805.

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Fonseca, Carlos Roberto Soerensen Dutra da. "Evolutionary ecology of Amazonian ant-myrmecophyte mutualisms." Thesis, University of Oxford, 1995. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.296899.

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Shang, Jin. "Ant colony heuristics for the dynamic facility layout problem." Morgantown, W. Va. : [West Virginia University Libraries], 2002. http://etd.wvu.edu/templates/showETD.cfm?recnum=2579.

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Thesis (M.S.)--West Virginia University, 2002.
Title from document title page. Document formatted into pages; contains vii, 76 p. : ill. Includes abstract. Includes bibliographical references (p. 72-76).
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Chomicki, Guillaume [Verfasser], and Susanne [Akademischer Betreuer] Renner. "Ant/plant symbioses : evolution, specialization and breakdown / Guillaume Chomicki ; Betreuer: Susanne Renner." München : Universitätsbibliothek der Ludwig-Maximilians-Universität, 2016. http://d-nb.info/1117474127/34.

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Baylis, Mathew. "The role of nutrition in an ant - lycaenid - host plant interaction." Thesis, University of Oxford, 1989. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.235992.

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Fitzpatrick, Ginny M. "Thermal Ecology of Mutualism: The Consequences of Temperature for Ant-Plant Interactions." Diss., The University of Arizona, 2014. http://hdl.handle.net/10150/321375.

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Mutualism is an often-complex positive interaction between species, each of which responds independently to varying biotic and abiotic conditions. Temperature is an important factor that can affect species both directly (e.g., physiologically) and indirectly (e.g., via its effects on interactions with consumers, competitors, and mutualists). Although much research has investigated the consequences of temperature for individual organisms, the effects of temperature on the formation, dissolution, and success of species interactions remain minimally understood. The unique ways in which species respond to temperature likely play a role in structuring communities. Environmental heterogeneity, including the thermal environment, can promote coexistence when species exploit resources in different ways, such as by occupying different thermal niches. This dissertation examines the consequences of temperature for participants in an ant-plant protection mutualism, and investigates how the thermal ecology of individual species affects the interaction. Many mutualisms involve multiple species, or interacting guilds. In these mutualisms, species interact with partner species that vary in multiple characteristics. Mutualists are quite sensitive to both partner quantity and partner quality (e.g., their effectiveness at performing a beneficial task). Mutualisms between ants and plants are common across a variety of habitats worldwide, which differ in thermal range, fluctuation, and seasonality. In light of ants’ well-studied and predictable responses to temperature, ant-plant interaction networks provide excellent systems for studying the thermal ecology of mutualisms. In ant-plant protection mutualisms, each of the participants (ants, plants, and enemies) likely differs in its response to temperature. In addition to the direct effects of temperature on ant species, temperature may affect the magnitude of mutualistic interactions among species by affecting the quantity and quality of the reward offered to partners, and the activity of the partners themselves and the plant’s enemies (i.e., herbivores). If herbivores are more thermally tolerant than the mutualistic ant defenders, the consequences for plants may well be severe; however, if herbivores are less thermally tolerant than are the ants, the effects of rising temperatures might be mitigated: although less-effective ants might be more frequent in a warmer world, herbivores would be less abundant there. This dissertation describes the thermal ecology of the participants in a mutualism between the cactus Ferocactus wislizeni and four of its common ant defenders (Forelius pruinosus, Crematogaster opuntiae, Solenopsis aurea, and Solenopsis xyloni) in the extreme environment of the Sonoran Desert, USA. The ants are attracted to extrafloral nectar produced by the plant, and in exchange protect the plants from herbivores, including a common phytophagous cactus bug, Narnia pallidicornis (Hemiptera: Coreidae). Specifically, it investigates how thermal ecology of the individual species affects the interactions among those species. Also, it considers the impact of a tradeoff between behavioral dominance and thermal tolerance among ants.
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Tepe, Eric J. "Phylogeny, morphology, and the evolution of ant-plant associations in Piper section Macrostachys (Pipereceae)." Oxford, Ohio : Miami University, 2005. http://rave.ohiolink.edu/etdc/view?acc%5Fnum=miami1133534289.

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Hill, JoVonn G. "ENVIRONMENTAL VARIABLES AFFECTING ANT (FORMICIDAE) COMMUNITY COMPOSITION IN MISSISSIPPI?S BLACK BELT AND FLATWOODS REGIONS." MSSTATE, 2006. http://sun.library.msstate.edu/ETD-db/theses/available/etd-04192006-141353/.

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The relationship of ant community composition to various habitat characteristics is compared across four habitat types and 12 environmental variables in Mississippi. The four habitat types include pasture, prairie, and oak-hickory forests in the Black Belt and forests in the Flatwoods physiographic region. Ants were sampled using pitfall traps, litter sampling, baiting and hand collecting. A total of 20,916 ants representing 68 species were collected. NMS and ANCOVA both revealed three distinct ant communities (pasture, prairie, and ?forests?) based on species composition and mean ant abundance per habitat type between the four habitat types. Principal component analysis (PCA) partitioned the 12 environmental variation into four axes with eigenvalues >1. Axis 1 differentiated open grass-dominated habitats from woodlands. In contrast axis two mainly separated pastures from prairie remnants. Multiple regression models using the four significant PCA axes revealed that total species richness was significantly affected by variation in the first two PCA axes. Forested sites supported approximately nine more species of ants than prairies and 21 more than pastures. Comparisons of the abundance of ant functional groups were also made between the four habitat types with multiple regression models to investigate how the environmental variables affected certain groups of ants. Annotated notes are included for each ant species encountered during this study.
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Ballantyne, Gavin. "Ants as flower visitors : floral ant-repellence and the impact of ant scent-marks on pollinator behaviour." Thesis, University of St Andrews, 2011. http://hdl.handle.net/10023/2535.

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As flower visitors, ants rarely benefit a plant, commonly disrupting pollination by deterring other flower visitors, or stealing nectar. This thesis examines three aspects of ant-flower interactions, focusing on the occurrence of floral traits that prevent disruption of pollination and a novel means by which ants may influence pollinator behaviour. To assess which types of plant species possess ant-repelling floral traits I carried out a survey of 49 Neotropical plant species. Around a third of these species were repellent to the common generalist ant Camponotus novograndensis (Formicinae). This repellence was positively correlated with large nectar volumes within individual flowers. It appears that there has been selection for floral ant-repellence as a defence against ant thieves in plant species that invest in large volumes of nectar. In some cases these repellent traits were effective against a wide range of ant species. However, in no plant species were predacious ants particularly repelled, indicating that there may be little selective pressure on non-ant-plants to defend potential pollinators from aggressive ants. To investigate the importance of coevolution in determining the effectiveness of ant-repellents, a small but diverse range of Mediterranean plant species were tested with the invasive nectar thieving ant Linepithema humile (Dolichoderinae) and the native but non-nectar thieving ant Messor bouvieri (Myrmecinae). Responses of both ant species to floral traits were very similar. The ability of some plants to restrict access to ant species with which they have no evolutionary history may help to reduce the impact invasive species, as nectar thieves, have on plant-pollinator interactions. It is reported that flowers recently visited by bees and hoverflies may be rejected for a period of time by subsequent bee visitors through the detection of scent-marks. Nectar-thieving ants could potentially influence the foraging decisions of bees in a similar way if they come to associate ant trail pheromones or footprint hydrocarbons with poor reward levels. However, my empirical work found no differences were found in bee visitation behaviour between flowers of Digitalis pupurea (Plantaginaceae), Bupleurum fruticosum (Apiaceae) or Brassica juncea (Brassicaceae) that had been in contact with ants and control flowers. Ant-attendance at flowers of these species may not reduce reward levels sufficiently to make it worthwhile for bees to incorporate ant scent-marks into foraging decisions. Investigations like these into the interactions between ants, flowers and other flower visitors are essential if we hope to understand the part ants play in pollination ecology, and determine how ants have helped shape floral evolution.
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Books on the topic "Plant ant"

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Oliveira, Paulo S., and Suzanne Koptur, eds. Ant-Plant Interactions. Cambridge: Cambridge University Press, 2017. http://dx.doi.org/10.1017/9781316671825.

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The evolutionary ecology of ant-plant mutualisms. Cambridge [Cambridgeshire]: Cambridge University Press, 1985.

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The ecology and evolution of ant-plant interactions. Chicago, IL: The University of Chicago Press, 2007.

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Plant and planet. Harmondsworth, Middlesex, England: Penguin Books, 1987.

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Rady, Mohamed Ramadan. Plant Biotechnology and Medicinal Plants. Cham: Springer International Publishing, 2019. http://dx.doi.org/10.1007/978-3-030-22929-0.

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Plant propagation: House and garden plants. London: Ward Lock, 1997.

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Weidenbörner, Martin. Mycotoxins in Plants and Plant Products. Cham: Springer International Publishing, 2018. http://dx.doi.org/10.1007/978-3-319-92850-0.

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Weidenbörner, Martin. Mycotoxins in Plants and Plant Products. Cham: Springer International Publishing, 2017. http://dx.doi.org/10.1007/978-3-319-46715-3.

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Wojtaszek, Przemyslaw. Mechanical Integration of Plant Cells and Plants. Berlin, Heidelberg: Springer-Verlag Berlin Heidelberg, 2011.

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Wojtaszek, Przemyslaw, ed. Mechanical Integration of Plant Cells and Plants. Berlin, Heidelberg: Springer Berlin Heidelberg, 2011. http://dx.doi.org/10.1007/978-3-642-19091-9.

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Book chapters on the topic "Plant ant"

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Hangay, George, Severiano F. Gayubo, Marjorie A. Hoy, Marta Goula, Allen Sanborn, Wendell L. Morrill, Gerd GÄde, et al. "Ant-plant Interactions." In Encyclopedia of Entomology, 166–85. Dordrecht: Springer Netherlands, 2008. http://dx.doi.org/10.1007/978-1-4020-6359-6_10272.

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Blatrix, Rumsaïs, and Veronika Mayer. "Communication in Ant–Plant Symbioses." In Plant Communication from an Ecological Perspective, 127–58. Berlin, Heidelberg: Springer Berlin Heidelberg, 2010. http://dx.doi.org/10.1007/978-3-642-12162-3_9.

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Rico-Gray, V., P. S. Oliveira, V. Parra-Tabla, M. Cuautle, and C. Díaz-Castelazo. "Ant–Plant Interactions: Their Seasonal Variation and Effects on Plant Fitness." In Ecological Studies, 221–39. Berlin, Heidelberg: Springer Berlin Heidelberg, 2008. http://dx.doi.org/10.1007/978-3-540-74002-5_14.

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Del-Claro, Kleber, Vanessa Stefani, Larissa Nahas, and Helena Maura Torezan-Silingardi. "Spiders as Plant Partners: Complementing Ant Services to Plants with Extrafloral Nectaries." In Behaviour and Ecology of Spiders, 215–26. Cham: Springer International Publishing, 2017. http://dx.doi.org/10.1007/978-3-319-65717-2_8.

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Del-Claro, Kleber, Denise Lange, Helena Maura Torezan-Silingardi, Diego Vinicius Anjos, Eduardo Soares Calixto, Wesley Dáttilo, and Victor Rico-Gray. "The Complex Ant–Plant Relationship Within Tropical Ecological Networks." In Ecological Networks in the Tropics, 59–71. Cham: Springer International Publishing, 2018. http://dx.doi.org/10.1007/978-3-319-68228-0_5.

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Callejas-Chavero, Alicia, Diana Martínez-Hernández, Arturo Flores-Martínez, Alejandra Moncada-Orellana, Yahveh Diaz-Quiñones, and Carlos Fabián Vargas-Mendoza. "Herbivory in Cacti: Fitness Effects of Two Herbivores, One Tending Ant on Myrtillocactus geometrizans (Cactaceae)." In Evolutionary Ecology of Plant-Herbivore Interaction, 109–34. Cham: Springer International Publishing, 2020. http://dx.doi.org/10.1007/978-3-030-46012-9_6.

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Abril, Adriana. "The Leaf-Cutting Ant–plant Interaction from a Microbial Ecology Perspective." In All Flesh Is Grass, 37–63. Dordrecht: Springer Netherlands, 2010. http://dx.doi.org/10.1007/978-90-481-9316-5_2.

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Heithaus, E. Raymond. "Seed dispersal mutualism and the population density of Asarum canadense, an ant-dispersed plant." In Tasks for vegetation science, 199–210. Dordrecht: Springer Netherlands, 1986. http://dx.doi.org/10.1007/978-94-009-4812-9_19.

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Papliński, Janusz. "Continuous Ant Colony Optimization for Identification of Time Delays in the Linear Plant." In Swarm and Evolutionary Computation, 119–27. Berlin, Heidelberg: Springer Berlin Heidelberg, 2012. http://dx.doi.org/10.1007/978-3-642-29353-5_14.

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Moog, Joachim, Brigitte Fiala, Michael Werner, Andreas Weissflog, Saw Leng Guan, and Ulrich Maschwitz. "Ant-Plant Diversity in Peninsular Malaysia, with Special Reference to the Pasoh Forest Reserve." In Pasoh, 459–94. Tokyo: Springer Japan, 2003. http://dx.doi.org/10.1007/978-4-431-67008-7_33.

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Conference papers on the topic "Plant ant"

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Lach, Lori. "Invasion biology and ant-plant systems in Australia." In 2016 International Congress of Entomology. Entomological Society of America, 2016. http://dx.doi.org/10.1603/ice.2016.91856.

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Armbrecht, Inge. "Ant-plant-herbivore interactions in northern neotropical agroecosystems." In 2016 International Congress of Entomology. Entomological Society of America, 2016. http://dx.doi.org/10.1603/ice.2016.91860.

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Pasaribu, Yenni Pintauli, Yorinda Buyang, Abraham Laurens Rettob, Reinyelda Latuheru, and Inggrid Marlissa. "Phytochemical Screening of Ant Plant Myrmecodia rumphii Becc." In Proceedings of the International Conference on Science and Technology (ICST 2018). Paris, France: Atlantis Press, 2018. http://dx.doi.org/10.2991/icst-18.2018.60.

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Fayle, Tom Maurice. "Mutualistic ant-plant symbioses and habitat change in tropical forests." In 2016 International Congress of Entomology. Entomological Society of America, 2016. http://dx.doi.org/10.1603/ice.2016.107578.

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Foong, Wai Kuan, Holger R. Maier, and Angus R. Simpson. "Ant colony optimization for power plant maintenance scheduling optimization." In the 2005 conference. New York, New York, USA: ACM Press, 2005. http://dx.doi.org/10.1145/1068009.1068046.

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Foong, Wai Kuan, Holger R. Maier, and Angus R. Simpson. "Ant colony optimization for power plant maintenance scheduling optimization." In the 2005 workshops. New York, New York, USA: ACM Press, 2005. http://dx.doi.org/10.1145/1102256.1102335.

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Wahana, Agung, Ichsan Taufik, Daniel Roberto Ramiraj, Cecep Nurul Alam, and Beki Subaeki. "Ant Colony Algorithm in Selection Suitable Plant for Urban Farming." In 2020 6th International Conference on Wireless and Telematics (ICWT). IEEE, 2020. http://dx.doi.org/10.1109/icwt50448.2020.9243663.

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Jie-jin Cai, Xiao-qian Ma, Li-xiang Li, Yi-xian Yang, and Hai-peng Peng. "Economic dispatch in power plant based on chaotic ant swarm optimization." In 7th IET International Conference on Advances in Power System Control, Operation and Management (APSCOM 2006). IEE, 2006. http://dx.doi.org/10.1049/cp:20062088.

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Zhang, Tao, Yue-jie Zhang, and Yu Chen. "An Ant Colony Algorithm for the Order Planning of the Iron-Steel Plant." In 2008 Fourth International Conference on Natural Computation. IEEE, 2008. http://dx.doi.org/10.1109/icnc.2008.163.

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Guo, Tiantai, Bo Hong, Ming Kong, and Jun Zhao. "Application of ant colony algorithm in plant leaves classification based on infrared spectroscopy." In THE 2013 UKM FST POSTGRADUATE COLLOQUIUM: Proceedings of the Universiti Kebangsaan Malaysia, Faculty of Science and Technology 2013 Postgraduate Colloquium. AIP Publishing LLC, 2014. http://dx.doi.org/10.1063/1.4872130.

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Reports on the topic "Plant ant"

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Young, Craig. Problematic plant monitoring in Lincoln Boyhood National Memorial: 2006–2019. Edited by Tani Hubbard. National Park Service, July 2021. http://dx.doi.org/10.36967/nrr-2286660.

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Managers are challenged with the impact of problematic plants, including exotic, invasive, and pest plant species. Information on the cover, distribution, and location of these plants is essential for developing risk-based approaches to managing these species. Based on surveys conducted in 2006, 2011, 2015, and 2019, Heartland Network staff and contractors identified a cumulative total of 45 potentially problematic plant taxa in Lincoln Boyhood National Memorial. Of the 34 species found in 2019, we characterized 4 as very low frequency, 14 as low frequency, 9 as medium frequency, and 7 as high frequency. A single species exceeded a 10-acre threshold based on a mid-point estimate. Because of the number of problematic plant taxa, as well as the extent and cover of problematic plants in the park and the small park size, control efforts should focus on treating high priority species across the entire park. High priority species may include plant species capable of rapid spread, species at low population levels, and species which can effectively be controlled.
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Young, Craig. Problematic plant monitoring in Hopewell Culture National Historical Park: 2008–2019. Edited by Tani Hubbard. National Park Service, July 2021. http://dx.doi.org/10.36967/nrr-2286658.

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Managers are challenged with the impact of problematic plants, including exotic, invasive, and pest plant species. Information on the cover and frequency of these plants is essential for developing risk-based approaches to managing these species. Based on surveys conducted in 2008, 2011, 2015, and 2019, Heartland Network staff and contractors identified a cumulative total of 51 potentially problematic plant species in Hopewell Culture National Historical Park. Of the 37 species found in 2019, we characterized 7 as very low frequency, 9 as low frequency, 17 as medium frequency, and 4 as high frequency. Of these, midpoint cover estimates of 2 medium frequency and 2 high frequency species exceeded the 10-acre threshold. Because of the number, extent, and cover of problematic plants in the park and the small park size, control efforts should focus on treating high priority species across the entire park. High priority species may include plant species capable of rapid spread, species at low population levels, and species which can effectively be controlled.
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Klein, R. Pinellas Plant Spill Prevention Control and Countermeasures Plan. Office of Scientific and Technical Information (OSTI), August 1988. http://dx.doi.org/10.2172/5725356.

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4

P. E. MacDonald. Next Generation Nuclear Plant Research and Development Program Plan. Office of Scientific and Technical Information (OSTI), January 2005. http://dx.doi.org/10.2172/911012.

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5

Author, Not Given. Next Generation Nuclear Plant Research and Development Program Plan. Office of Scientific and Technical Information (OSTI), January 2005. http://dx.doi.org/10.2172/859112.

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Hagerty, K. J., and H. M. Knotek. 384 Power plant waste water sampling and analysis plan. Office of Scientific and Technical Information (OSTI), January 1995. http://dx.doi.org/10.2172/10116321.

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7

Nachtrieb, Julie. Field site analysis of giant salvinia nitrogen content and salvinia weevil density. Engineer Research and Development Center (U.S.), September 2021. http://dx.doi.org/10.21079/11681/42060.

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Abstract:
In 2012, a giant salvinia (Salvinia molesta Mitchell) biological control project was initiated in Louisiana. Although similar quantities of salvinia weevils (Cyrtobagous salviniae Calder and Sands) were released at all sites, weevil densities were highly variable among sites. Additionally, signs of plant nitrogen depletion (yellowing plants) were observed at some sites. Because it is well known that plant nutrition can affect the success of a biocontrol agent because of slowed development and/or reduced fecundity, the correlation between giant salvinia nitrogen content and Salvinia weevil density was investigated during the growing seasons of the second and fourth years. During 2013, weevils were reintroduced to sites, and the magnitude of adult weevil density increase varied by site. Giant salvinia nitrogen content varied among sites and sampling dates. Upper Big Break plants had greater nitrogen than all other sites during 75% of sampling dates. Additionally, adult and larval densities were significantly correlated to plant nitrogen content. During 2015, trends were less distinct and weevil densities and nitrogen content varied based on the interaction between sampling date and site, but a significant correlation was not detected. Results from 1-yr of a 2-yr study confirmed published reports of the importance of plant nitrogen content to salvinia weevil productivity. Additional studies are warranted to evaluate and understand the role of nitrogen at giant salvinia biocontrol field sites.
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8

Peterson, Eric, Wenbin Wei, and Lydon George. A Model for Integrating Rail Services with other Transportation Modalities: Identifying the Best Practices and the Gaps for California’s Next State Rail Plan. Mineta Transportation Institute, July 2021. http://dx.doi.org/10.31979/mti.2021.1949.

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The California State Rail Plan (CSRP) is among the best rail plan documents published by any jurisdiction in the United States to date. As such, the CSRP is used in this paper as the basis of comparison to other state rail service plans. These plans will have been submitted to the Federal Railroad Administration (FRA) on record as of June 2020—as required under Section 303 of the Passenger Rail Investment and Improvement Act (PRIIA) of 2008. The purpose of this paper is to identify the best practices and gaps that may inform California and other states in their future rail service plan development. This paper is grounded in the realization that, while the general outline of FRA requirements is uniform for all states, the actual content and inclusion of these requirements in the myriad state plans varies greatly. For example, California was granted an exception to help update FRA Rail Plan Guidance for its 2018 Rail Plan, other states have complained that FRA guidance and requirements on rail service planning have put state rail agencies in the position of constantly writing plans with little or no time to implement them. Throughout this research, the authors identify all the elements of FRA guidelines as reflected in the CSRP and rail plans of other states. This report also identifies the best features and planning strategies that may inform and improve the state rail planning process going forward, steps that will positively contribute to the public benefit of enhanced rail systems.
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G.O. Hayner, R.L. Bratton, and R.N. Wright. Next Generation Nuclear Plant Materials Research and Development Program Plan. Office of Scientific and Technical Information (OSTI), September 2005. http://dx.doi.org/10.2172/911784.

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R. Doug Hamelin and G. O. Hayner. Next Generation Nuclear Plant Materials Selection and Qualification Program Plan. Office of Scientific and Technical Information (OSTI), November 2004. http://dx.doi.org/10.2172/910945.

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