Academic literature on the topic 'Speciation'

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Journal articles on the topic "Speciation"

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Ingram, Travis, Alexis Harrison, D. Luke Mahler, María del Rosario Castañeda, Richard E. Glor, Anthony Herrel, Yoel E. Stuart, and Jonathan B. Losos. "Comparative tests of the role of dewlap size in Anolis lizard speciation." Proceedings of the Royal Society B: Biological Sciences 283, no. 1845 (December 28, 2016): 20162199. http://dx.doi.org/10.1098/rspb.2016.2199.

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Phenotypic traits may be linked to speciation in two distinct ways: character values may influence the rate of speciation or diversification in the trait may be associated with speciation events. Traits involved in signal transmission, such as the dewlap of Anolis lizards, are often involved in the speciation process. The dewlap is an important visual signal with roles in species recognition and sexual selection, and dewlaps vary among species in relative size as well as colour and pattern. We compile a dataset of relative dewlap size digitized from photographs of 184 anole species from across the genus' geographical range. We use phylogenetic comparative methods to test two hypotheses: that larger dewlaps are associated with higher speciation rates, and that relative dewlap area diversifies according to a speciational model of evolution. We find no evidence of trait-dependent speciation, indicating that larger signals do not enhance any role the dewlap has in promoting speciation. Instead, we find a signal of mixed speciational and gradual trait evolution, with a particularly strong signal of speciational change in the dewlaps of mainland lineages. This indicates that dewlap size diversifies in association with the speciation process, suggesting that divergent selection may play a role in the macroevolution of this signalling trait.
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Quintero, Ignacio, Nicolas Lartillot, and Hélène Morlon. "Imbalanced speciation pulses sustain the radiation of mammals." Science 384, no. 6699 (May 31, 2024): 1007–12. http://dx.doi.org/10.1126/science.adj2793.

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The evolutionary histories of major clades, including mammals, often comprise changes in their diversification dynamics, but how these changes occur remains debated. We combined comprehensive phylogenetic and fossil information in a new “birth-death diffusion” model that provides a detailed characterization of variation in diversification rates in mammals. We found an early rising and sustained diversification scenario, wherein speciation rates increased before and during the Cretaceous-Paleogene (K-Pg) boundary. The K-Pg mass extinction event filtered out more slowly speciating lineages and was followed by a subsequent slowing in speciation rates rather than rebounds. These dynamics arose from an imbalanced speciation process, with separate lineages giving rise to many, less speciation-prone descendants. Diversity seems to have been brought about by these isolated, fast-speciating lineages, rather than by a few punctuated innovations.
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Martin, Christopher H., and Emilie J. Richards. "The Paradox Behind the Pattern of Rapid Adaptive Radiation: How Can the Speciation Process Sustain Itself Through an Early Burst?" Annual Review of Ecology, Evolution, and Systematics 50, no. 1 (November 2, 2019): 569–93. http://dx.doi.org/10.1146/annurev-ecolsys-110617-062443.

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Rapid adaptive radiation poses two distinct questions apart from speciation and adaptation: What happens after one speciation event and how do some lineages continue speciating through a rapid burst? We review major features of rapid radiations and their mismatch with theoretical models and speciation mechanisms. The paradox is that the hallmark rapid burst pattern of adaptive radiation is contradicted by most speciation models, which predict continuously decelerating diversification and niche subdivision. Furthermore, it is unclear if and how speciation-promoting mechanisms such as magic traits, phenotype matching, and physical linkage of coadapted alleles promote rapid bursts of speciation. We review additional mechanisms beyond ecological opportunity to explain rapid radiations: ( a) ancient adaptive alleles and the transporter hypothesis, ( b) sexual signal complexity, ( c) fitness landscape connectivity, ( d) diversity begets diversity, and ( e) plasticity first. We propose new questions and predictions connecting microevolutionary processes to macroevolutionary patterns through the study of rapid radiations.
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Chen, Liang, Yong Feng Li, Kai Xuan Tan, Yang Hu, Yan Shi Xie, Wei Huang, and Zheng Qing Wang. "Chemical Speciations of Uranium of a Sandstone Uranium Deposit and their Effects to In Situ Leaching, Northwest China." Advanced Materials Research 953-954 (June 2014): 597–600. http://dx.doi.org/10.4028/www.scientific.net/amr.953-954.597.

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The chemical speciations of uranium of a sandstone uranium deposit in the Yili Basin were quantitative analyzed using the method of sequential chemical extraction, and the implications of which for in-situ leaching of uranium were discussed. The proportion of chemical speciations of uranium shows that the bound to carbonates>the bound to Fe-Mn oxides>the exchangeable>the residual>the bound to sulfide-organic matter speciation, which is beneficial to cost reduction on in-situ leaching of uranium and environmental protection. The active uranium includes 4 chemical speciations except for the residual speciation is principal, which suggests that the leaching rate of uranium of the sandstone uranium deposit is high. The inert uranium is the residual speciation, with low proportion. The sample with high proportion of active uranium is of high grade, and vice versa, which indicates that the ratio of total uranium extracted/reserves should be relatively high. Hence, based on the chemical speciations of uranium, the sandstone uranium deposit can be exploited suitably using the technique of in-situ leaching with dilute sulfuric acid, integrated considering that cost control of in-situ leaching of uranium, environmental protection, leaching rate of uranium and the ratio of total uranium extracted/reserves of uranium.
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Jiggins, C. D. "Speciation: Reinforced butterfly speciation." Heredity 96, no. 2 (October 12, 2005): 107–8. http://dx.doi.org/10.1038/sj.hdy.6800754.

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Nitschke, Charlotte R., Mathew Hourston, Vinay Udyawer, and Kate L. Sanders. "Rates of population differentiation and speciation are decoupled in sea snakes." Biology Letters 14, no. 10 (October 2018): 20180563. http://dx.doi.org/10.1098/rsbl.2018.0563.

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Comparative phylogeography can inform many macroevolutionary questions, such as whether species diversification is limited by rates of geographical population differentiation. We examined the link between population genetic structure and species diversification in the fully aquatic sea snakes (Hydrophiinae) by comparing mitochondrial phylogeography across northern Australia in 16 species from two closely related clades that show contrasting diversification dynamics. Contrary to expectations from theory and several empirical studies, our results show that, at the geographical scale studied here, rates of population differentiation and speciation are not positively linked in sea snakes. The eight species sampled from the rapidly speciating Hydrophis clade have weak population differentiation that lacks geographical structure. By contrast, all eight sampled Aipysurus–Emydocephalus species show clear geographical patterns and many deep intraspecific splits, but have threefold slower speciation rates. Alternative factors, such as ecological specialization, species duration and geographical range size, may underlie rapid speciation in sea snakes.
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ENDLER, JOHN A. "Speciation." BioScience 55, no. 1 (2005): 78. http://dx.doi.org/10.1641/0006-3568(2005)055[0078:agroou]2.0.co;2.

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Rabosky, Daniel L. "Speciation." Auk 122, no. 1 (2005): 371. http://dx.doi.org/10.1642/0004-8038(2005)122[0371:s]2.0.co;2.

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Hendry, Andrew P. "Speciation." Nature 458, no. 7235 (March 2009): 162–64. http://dx.doi.org/10.1038/458162a.

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Rabosky, Daniel L. "Speciation." Auk 122, no. 1 (January 1, 2005): 371–73. http://dx.doi.org/10.1093/auk/122.1.371.

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Dissertations / Theses on the topic "Speciation"

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Venditti, Christopher D. "Speciation and molecular evolution." Thesis, University of Reading, 2007. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.493810.

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Speciation is fundamental to genetical evolution in being the process that separates reproductively isolated populations of genes into two or more independently replicating communities of genes. The theory of Punctuated Equilibrium and the Red Queen hypothesis are two enduring and controversial macro-evolutionary ideas proposed by palaeontologists from examination of the fossil record through time. One has implications for the nature of genetical evolution at speciation, the other for its timing.
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Branch, Simon. "Arsenic speciation in food." Thesis, University of Plymouth, 1990. http://hdl.handle.net/10026.1/2138.

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A high performance liquid chromatography-inductively coupled plasma-mass spectrometry (HPLC-ICP-MS) method has been developed for the separation and quantification of ~g kg-1 levels of arsenobetaine, monomethylarsonic acid (MMAA), dimethylarsinic acid (DMAA) , arsenite and arsenate. Using this coupling, arsenic species in fruit and vegetables grown on soils containing up to 1.4% w\w arsenic have been surveyed and DMAA, MMAA, arsenite and arsenate identified in the plants. Although extraction efficiencies were poor, typically 10%, total arsenic determinations demonstrated that arsenic uptake by the plants was low, with the highest arsenic level being 60-70 mg kg-1 dry weight in unpeeled potato. Provided the plants are washed thoroughly they pose no dietary risk. Using the same HPLC-ICP-MS coupling non-toxic arsenobetaine was identified as the major arsenic species in cod, dab, haddock, lemon sole, mackerel, plaice and whiting. Levels ranged between 1.0 mg kg-1 dry weight in the mackerel, to 187 mg kg-1 in the plaice. Mackerel also contained DMAA and possibly a lipid bound arsenic species. No degradation of arsenobetaine to more toxic species was observed when an enzymatic digestion procedure, based on the action of trypsin, was applied to fish except in the case of one of the plaice specimens for which DMAA was characterised in the digest at the mg kg-1 level. Ten volunteers participated in a dietary trial in which they were given set conventional meals. The main source of arsenic was fish and the predominant species was arsenobetaine. All of the arsenic, as arsenobetaine, was excreted in the urine within 72 hours of consumption. Urinary levels of MMAA, DMAA and inorganic arsenic were all below 10 µg. For total arsenic determination in the urine nitrogen introduction ICP-MS was used to overcome the polyatomic ion 40Ar 35Cl+. This method gave good agreement between observed and certified values for a range of reference materials.
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Hurford, Simon Ronald. "Speciation and trace metals." Thesis, Cardiff University, 1989. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.276927.

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Chow, Stephanie S. Wold Barbara J. "Speciation in digital organisms /." Diss., Pasadena, Calif. : California Institute of Technology, 2005. http://resolver.caltech.edu/CaltechETD:etd-06062005-171257.

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Pennings, Pleuni. "Models of adaptation and speciation." Diss., lmu, 2007. http://nbn-resolving.de/urn:nbn:de:bvb:19-66567.

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Montilla, Alfonso. "Sample treatment for arsenic speciation." Thesis, National Library of Canada = Bibliothèque nationale du Canada, 1999. http://www.collectionscanada.ca/obj/s4/f2/dsk1/tape2/PQDD_0010/MQ60154.pdf.

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Jarratt, Jason Aldrin. "Validation of chemical speciation models." Thesis, Manchester Metropolitan University, 1998. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.263802.

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Morrison, Gregory Mark. "Metal speciation in urban runoff." Thesis, Middlesex University, 1985. http://eprints.mdx.ac.uk/6559/.

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A literature review has identified free and weakly complexed dissolved as well as solid surface associated, metal species as those forms most likely to be bio available. To analyse bio available Zn, Cd, Pb and Cu fractions in urban runoff a speciation scheme was devised which provided a relatively rapid technique for separating the dissolved and suspended solid phases of storm water into appropriate fractions. A new method, termed Dialysis with Receiving Resins, which responds to bio available metal species by incorporating a specially developed cysteine resin, within a dialysis membrane, has been devised and tested, A small scale gullypot study allowed the identification of six major processes which affect metal mobilisation and transport. The relevance of these processes is discussed with reference to gullypot outflow loadings of the different metal fractions. Acid rain mobilisation was found to greatly increase the levels of bio available free and weakly complexed metal fractions. Mass balance studies showed that Zn, Cd and Cu have a residence time in the road surface/gullypot system of little more than one storm event whereas Pb tends to be more persistent due to its predominant association with the solid phase. The speciation scheme was also applied to the analysis of metal fractions in storm water outfall samples collected from urban catchments in Sweden and the U.K. Significant concentrations and loadings of metals were found for both catchments with, on average, bio available metal forms representing 68% of the Zn, 76% of the Cd, 66% of the Pb and 32% of the Cu. Individual metal species were found to load at different rates onto metal chemographs and can be explained in terms of controlling parameters, as well as the influence of mobilisation and transport processes. Cadmium and Cu concentrations in storm water were regularly found to exceed Water Quality Standards and also to accumulate to significant levels in the Dialysis with Receiving Resins method. These metals may therefore represent a direct threat to receiving water quality.
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Dean, Laura L. "Speciation in three-spined stickleback." Thesis, University of Nottingham, 2018. http://eprints.nottingham.ac.uk/52951/.

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Speciation, the division of one species into two, has provided evolutionary biologists with a rich ensemble of questions, conundrums and revelations for over a century, and yet our understanding of many of the factors affecting this complex, multidimensional process remains limited. In this thesis, I aimed to further our understanding of speciation using divergent populations of three-spined stickleback (Gasterosteus aculeatus) on the island of North Uist, Scottish Western Isles. Firstly, I explored the degree of morphological and genetic separation between three stickleback ecotypes, showing that both strongly reproductively isolated, and admixed populations exist in close proximity. I then attempted to identify the ecological and genetic origins of strongly isolated species-pairs, testing two competing explanations for their existence. I showed that a recent 'double-invasion' is unlikely, but found stark differences in the long-term genetic history between ecotypes, indicating that the evolution of species-pairs may be related to secondary contact between anciently diverged mitochondrial lineages. I then conducted mate choice trials to assess mating preferences between ecotypes, and to test for reinforcement in species-pairs. Consistent with the idea that speciation in this case is not driven purely by ecological factors, I found no evidence that reinforcement drives assortative mating in species-pairs. Rather, it appears that extant mating preferences have developed as a by-product of other adaptations. Finally, I took a brief interlude to document and investigate an exciting chance finding, internally developed embryos retained within the ovaries of a normally oviparous species, before concluding by summing up my findings, their relevance for scientific progress, and avenues opened up for further research.
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Yodle, Chan. "Iodine speciation in marine aerosol." Thesis, University of East Anglia, 2015. https://ueaeprints.uea.ac.uk/56772/.

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Iodine chemistry in the marine aerosol plays important roles in the marine boundary layer such as ozone destruction and new aerosol particle formation. Iodine has a complex chemistry in the gas and aerosol phases and to date, what controls iodine speciation, the interactions and roles of individual iodine species are not well understood. This research aims to identify key controls on iodine speciation in marine aerosol. Effects of filter types on iodine and extraction methods were tested to provide optimum conditions for extraction of iodine species. Coupling of ion chromatography and inductively coupled plasma – mass spectrometry (IC-ICP-MS) for the measurement of iodine speciation was developed to provide a reliable analytical method. These optimised methods were used to determine iodine speciation in samples collected during cruises in the Atlantic Ocean (AMT21) and the Pacific Ocean (TransBrom and SHIVA). Major ions were also determined in these samples by ion chromatography (IC) with the results providing insight into the chemical characteristics aerosol samples. A high variability of the total soluble iodine (TSI) was observed between AMT21 (12–82, median 30 pmol m-3) and TransBrom (1.6–27, median 6.9 pmol m-3) and SHIVA (5.9–15, median 8.4 pmol m-3). The proportions of iodide (I-), iodate (IO3-) and soluble organic iodine (SOI) on the three cruises also showed a high variability: AMT21: I- 5.2–39%, median 14%; IO3- 36–99%, median 66%; and SOI 13–47%, median 28%, TransBrom: I- 8.8–64%, median 46%; IO3- 1.8–65%, median 6.2%; and SOI 5.9–50%, median 39%, SHIVA: I- 22–79%, median 42%; IO3- 17–66%, median 39%; and SOI non-determinable value–41%, median 14%. Three main types of aerosol with distinctive iodine speciation were identified: polluted aerosol, clean seasalt and mineral dust. pH seems to play an important role in regulating iodine speciation. The formation of HOI and the reduction of iodate are driven by acidic conditions in polluted aerosol. In clean less acidic seasalt aerosol, a high iodine enrichment was observed (565–1675, median 725), especially in the fine mode aerosol. For mineral dust, uptake of HIO3 on calcium carbonate surfaces seems to dominate.
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Books on the topic "Speciation"

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Wunn, Ina, and Davina Grojnowski. Religious Speciation. Cham: Springer International Publishing, 2018. http://dx.doi.org/10.1007/978-3-030-04435-0.

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1966-, Dieckmann Ulf, ed. Adaptive speciation. Cambridge, UK: Cambridge University Press, 2004.

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S, Vrba E., ed. Species and speciation. Pretorii͡a︡: Transvaal Museum, 1985.

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1947-, Endler John A., and Otte Daniel, eds. Speciation and its consequences. Sunderland, Mass: Sinauer Associates, 1989.

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Daniel, Otte, and Endler John A. 1947-, eds. Speciation and its consequences. Sunderland, Mass: Sinauer Associates, 1989.

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Koen, Martens, Goddeeris Boudewijn, and Coulter G. W, eds. Speciation in ancient lakes. Stuttgart: E. Schweizerbartsche Verlagsbuchandlung, 1994.

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1943-, Caroli Sergio, ed. Element speciation in bioinorganic chemistry. New York: Wiley, 1996.

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M, Ure A., and Davidson C. M, eds. Chemical speciation in the environment. 2nd ed. Oxford: Blackwell Science, 2002.

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Lobinski, Ryszard, and Joanna Szpunar, eds. Hyphenated Techniques in Speciation Analysis. Cambridge: Royal Society of Chemistry, 2003. http://dx.doi.org/10.1039/9781847551092.

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Broekaert, J. A. C., Ş. Güçer, and F. Adams, eds. Metal Speciation in the Environment. Berlin, Heidelberg: Springer Berlin Heidelberg, 1990. http://dx.doi.org/10.1007/978-3-642-74206-4.

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Book chapters on the topic "Speciation"

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Barton, N. H. "Speciation." In Analytical Biogeography, 185–218. Dordrecht: Springer Netherlands, 1988. http://dx.doi.org/10.1007/978-94-009-1199-4_9.

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Barton, N. H. "Speciation." In Analytical Biogeography, 185–218. Dordrecht: Springer Netherlands, 1990. http://dx.doi.org/10.1007/978-94-009-0435-4_7.

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Neelabh. "Speciation." In Encyclopedia of Animal Cognition and Behavior, 6605–6. Cham: Springer International Publishing, 2022. http://dx.doi.org/10.1007/978-3-319-55065-7_109.

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Neelabh. "Speciation." In Encyclopedia of Animal Cognition and Behavior, 1–3. Cham: Springer International Publishing, 2019. http://dx.doi.org/10.1007/978-3-319-47829-6_109-1.

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Yukawa, Junichi, Makoto Tokuda, Shinsuke Sato, Tomoko Ganaha-Kikumura, and Nami Uechi. "Speciation." In Biology of Gall Midges, 11–52. Singapore: Springer Singapore, 2021. http://dx.doi.org/10.1007/978-981-33-6534-6_2.

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Bard, Jonathan. "Speciation." In Evolution, 319–34. Boca Raton: CRC Press, 2021. http://dx.doi.org/10.1201/9780429346217-26.

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Miller, William B. "Speciation." In Cognition-Based Evolution, 147–62. Boca Raton: CRC Press, 2023. http://dx.doi.org/10.1201/9781003286769-13.

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Wunn, Ina, and Davina Grojnowski. "Before We Embark on Our Discovery…" In Religious Speciation, 1–7. Cham: Springer International Publishing, 2018. http://dx.doi.org/10.1007/978-3-030-04435-0_1.

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Wunn, Ina, and Davina Grojnowski. "Learning and Communication – How Religions Reproduce." In Religious Speciation, 169–94. Cham: Springer International Publishing, 2018. http://dx.doi.org/10.1007/978-3-030-04435-0_10.

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Wunn, Ina, and Davina Grojnowski. "Speciation and Isolation." In Religious Speciation, 195–207. Cham: Springer International Publishing, 2018. http://dx.doi.org/10.1007/978-3-030-04435-0_11.

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Conference papers on the topic "Speciation"

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Ezard, Tom, Alex Searle-Barnes, Anieke Brombacher, Paul A. Wilson, J. Andy Milton, Christopher D. Standish, and Gavin L. Foster. "INFERRING SPECIATION AND POST-SPECIATION DIVERGENCE BY DEPTH PARAPATRY." In GSA Connects 2022 meeting in Denver, Colorado. Geological Society of America, 2022. http://dx.doi.org/10.1130/abs/2022am-383127.

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Lee Graham and Franz Oppacher. "Speciation through Exaptation." In 2007 IEEE Symposium on Artificial Life. IEEE, 2007. http://dx.doi.org/10.1109/alife.2007.367827.

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Della Cioppa, Antonio, Angelo Marcelli, and Prisco Napoli. "Speciation in evolutionary algorithms." In the 13th annual conference. New York, New York, USA: ACM Press, 2011. http://dx.doi.org/10.1145/2001576.2001719.

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Rau, Christoph, Andrea Somogyi, and Alexandre S. Simionovici. "Tomography with chemical speciation." In Optical Science and Technology, the SPIE 49th Annual Meeting, edited by Ulrich Bonse. SPIE, 2004. http://dx.doi.org/10.1117/12.558825.

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Godin-Dubois, Kevin, Sylvain Cussat-Blanc, and Yves Duthen. "Speciation under changing environments." In The 2019 Conference on Artificial Life. Cambridge, MA: MIT Press, 2019. http://dx.doi.org/10.1162/isal_a_00186.

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Godin-Dubois, Kevin, Sylvain Cussat-Blanc, and Yves Duthen. "Speciation under changing environments." In The 2019 Conference on Artificial Life. Cambridge, MA: MIT Press, 2019. http://dx.doi.org/10.1162/isal_a_00186.xml.

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Cooper, Peter. "Speciation in the computing sciences." In the 2nd annual conference. New York, New York, USA: ACM Press, 2005. http://dx.doi.org/10.1145/1107622.1107628.

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Faure, Karine, Michael Loughran, and Jeremy D. Glennon. "Metal complex speciation on-chip." In MOEMS-MEMS 2006 Micro and Nanofabrication, edited by Ian Papautsky and Wanjun Wang. SPIE, 2006. http://dx.doi.org/10.1117/12.660601.

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Li, Wang, Bi Li, and Qiansheng Zhang. "Genetic algorithm with geographic speciation." In 2012 8th International Conference on Natural Computation (ICNC). IEEE, 2012. http://dx.doi.org/10.1109/icnc.2012.6234605.

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Sasha D. Hafner, William J. Jewell, and James J. Bisogni, and Jr. "Ammonia Speciation in Anaerobic Digesters." In 2006 Portland, Oregon, July 9-12, 2006. St. Joseph, MI: American Society of Agricultural and Biological Engineers, 2006. http://dx.doi.org/10.13031/2013.20930.

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Reports on the topic "Speciation"

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Clark, D. L., J. G. Watkin, D. E. Morris, and J. M. Berg. Molecular models for actinide speciation. Office of Scientific and Technical Information (OSTI), June 1994. http://dx.doi.org/10.2172/145191.

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Atalay, A. Selenium speciation in ground water. Office of Scientific and Technical Information (OSTI), July 1990. http://dx.doi.org/10.2172/7107624.

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Kevin C. Galbreath, Charlene R. Crocker, Carolyn M. Nyberg, Frank E. Huggins, and Gerald P. Huffman. NICKEL SPECIATION OF URBAN PARTICULATE MATTER. Office of Scientific and Technical Information (OSTI), October 2003. http://dx.doi.org/10.2172/823014.

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Migdissov, Artaches. Hydrothermal aqueous speciation: studies at LANL. Office of Scientific and Technical Information (OSTI), July 2023. http://dx.doi.org/10.2172/1990094.

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Skeen, Rodney, I. Pegg, H. Abramowitz, K. Matlack, D. Swanberg, and R. Mabrouki. Mercury Speciation During Vitrification of LAW. Office of Scientific and Technical Information (OSTI), May 2023. http://dx.doi.org/10.2172/1973400.

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Um, Wooyong, Hun Bok Jung, Guohui Wang, Joseph H. Westsik, and Reid A. Peterson. Characterization of Technetium Speciation in Cast Stone. Office of Scientific and Technical Information (OSTI), November 2013. http://dx.doi.org/10.2172/1110479.

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CLARK, D. ACTINIDE-ALUMINATE SPECIATION IN ALKALINE RADIOACTIVE WASTE. Office of Scientific and Technical Information (OSTI), November 1999. http://dx.doi.org/10.2172/785078.

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Dr. David L. Clark and Dr. Alexander M. Fedosseev. Actinide-Aluminate Speciation in Alkaline Radioactive Waste. Office of Scientific and Technical Information (OSTI), December 2001. http://dx.doi.org/10.2172/791358.

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Watson, Thomas B. Aerosol Chemical Speciation Monitor (ACSM) Instrument Handbook. Office of Scientific and Technical Information (OSTI), August 2017. http://dx.doi.org/10.2172/1375336.

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Atalay, A. Selenium speciation in ground water. Quarterly report. Office of Scientific and Technical Information (OSTI), July 1990. http://dx.doi.org/10.2172/10165850.

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