Relevant bibliographies by topics / Plants – Migration

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  1. Journal articles
  2. Dissertations / Theses
  3. Books
  4. Book chapters
  5. Conference papers
  6. Reports

Academic literature on the topic 'Plants – Migration'

Author: Grafiati
Published: 4 June 2021
Last updated: 27 January 2023

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Journal articles on the topic "Plants – Migration"

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Muralev, E. D. "Tritium migration in nuclear desalination plants." International Journal of Nuclear Desalination 1, no. 1 (2003): 104. http://dx.doi.org/10.1504/ijnd.2003.003447.

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Levin, D. A., and A. G. Fix. "A model of kin-migration in plants." Theoretical and Applied Genetics 77, no. 3 (March 1989): 332–36. http://dx.doi.org/10.1007/bf00305824.

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Wagner, D. B., and R. W. Allard. "Pollen Migration in Predominantly Self-Fertilizing Plants: Barley." Journal of Heredity 82, no. 4 (July 1991): 302–4. http://dx.doi.org/10.1093/oxfordjournals.jhered.a111090.

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Koch, M. A., and C. Kiefer. "Molecules and migration: biogeographical studies in cruciferous plants." Plant Systematics and Evolution 259, no. 2-4 (June 28, 2006): 121–42. http://dx.doi.org/10.1007/s00606-006-0416-y.

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Haraldstad, Tormod, Thrond Oddvar Haugen, Frode Kroglund, Esben Moland Olsen, and Erik Höglund. "Migratory passage structures at hydropower plants as potential physiological and behavioural selective agents." Royal Society Open Science 6, no. 11 (November 2019): 190989. http://dx.doi.org/10.1098/rsos.190989.

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Anthropogenic activities affect fish populations worldwide. River dams have profound impacts on ecosystems by changing habitats and hindering migration. In an effort to counteract such effects, a range of mitigation measures have been installed at hydroelectric power plants. However, not all individuals in a population use these measures, potentially creating strong selection processes at hydroelectric power plants. This may be especially true during migration; fish can get heavily delayed or pass through a hydropower turbine, thus facing increased mortality compared with those using a safe bypass route. In this study, we quantify migration route choices of descending wild passive integrated transponder (PIT)-tagged Atlantic salmon smolts released upstream from a hydroelectric plant. We demonstrate how only a few metres’ displacement of bypass canals can have a large impact on the fish guidance efficiency (FGE). The proportion of fish using the bypasses increased from 1% to 34% when water was released in surface gates closer to the turbine intake. During a period of low FGE, we observed two different smolt migratory strategies. While some individuals spent little time in the forebay before migrating through the turbine tunnel, others remained there. We suggest that these groups represent different behavioural types, and that suboptimal mitigation measures at hydropower intakes may, therefore, induce strong selection on salmon behavioural traits. The ultimate outcome of these selection mechanisms is discussed in light of potential trade-offs between turbine migration mortality coast and optimal sea entrance timing survival benefits.
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Láska, P. "Migration flight of carrot psyllid (Trioza apicalis) at various latitudes is independent of local phenology." Plant Protection Science 49, No. 4 (October 15, 2013): 187–92. http://dx.doi.org/10.17221/91/2012-pps.

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A particularly advantageous method of monitoring the flight and calculating the median was used. An example is given in order to understand better the calculation. The medians show that the timing is similar at different latitudes despite local phenological differences. The difference in median flight times between Finland and the Czech Republic was five days on average, but phenological differences are about a month, shown by a comparison of temperatures, the monitoring of buds on spruce, and by the stage of the carrot plants. During the attack by T. apicalis the carrot plants are younger towards north what is unusual in Psyllidae. In extreme north locations as Finland the genetic triggering for flight could not be realised by the strong declining of temperatures. Flight occurs here substantially later as to local photoperiodicity but is the earliest as to phenology, including carrot plants. The very small plants during flight are much more damaged here than the well-developed plants in central Europe.  
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Wang, Fei, Anting Chen, Yuanjun Laili, Lin Zhang, Peng Wan, Dongming Zhao, and Fei Tao. "Parallel plants collaborative growth algorithm for virtual machine migration." International Journal of Service and Computing Oriented Manufacturing 1, no. 3 (2014): 211. http://dx.doi.org/10.1504/ijscom.2014.063994.

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Devergne, Jean-Claude, Philippe Bonnet, Frank Panabières, Jean-Pierre Blein, and Pierre Ricci. "Migration of the Fungal Protein Cryptogein within Tobacco Plants." Plant Physiology 99, no. 3 (July 1, 1992): 843–47. http://dx.doi.org/10.1104/pp.99.3.843.

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Huusko, Riina, Pekka Hyvärinen, Mikko Jaukkuri, Aki Mäki-Petäys, Panu Orell, and Jaakko Erkinaro. "Survival and migration speed of radio-tagged Atlantic salmon (Salmo salar) smolts in two large rivers: one without and one with dams." Canadian Journal of Fisheries and Aquatic Sciences 75, no. 8 (August 2018): 1177–84. http://dx.doi.org/10.1139/cjfas-2017-0134.

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Connectivity problems in fish migration in regulated rivers have been widely studied, but few studies have rigorously compared parallel migration success between regulated and free-flowing rivers. Here, survival and migration speed of downstream migrating radio-tagged Atlantic salmon (Salmo salar) smolts were studied in two large neighboring rivers in the northern Baltic Sea area: one without and one with dams. Both rivers have a free-flowing upper section, where the survival and migration speed of salmon smolts were similar. Survival along the lower section of the free-flowing river was about six times higher than in the lower part of the regulated river with five hydropower plants. Migration speed of smolts was also significantly faster in the river without dams. These severe problems in downstream connectivity in the regulated river pose challenging tasks for restoration of salmon populations.
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Meng, Yizhi, Yaxin Li, Cheryl D. Galvani, Guixia Hao, James N. Turner, Thomas J. Burr, and H. C. Hoch. "Upstream Migration of Xylella fastidiosa via Pilus-Driven Twitching Motility." Journal of Bacteriology 187, no. 16 (August 15, 2005): 5560–67. http://dx.doi.org/10.1128/jb.187.16.5560-5567.2005.

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ABSTRACT Xylella fastidiosa is a xylem-limited nonflagellated bacterium that causes economically important diseases of plants by developing biofilms that block xylem sap flow. How the bacterium is translocated downward in the host plant's vascular system against the direction of the transpiration stream has long been a puzzling phenomenon. Using microfabricated chambers designed to mimic some of the features of xylem vessels, we discovered that X. fastidiosa migrates via type IV-pilus-mediated twitching motility at speeds up to 5 μm min−1 against a rapidly flowing medium (20,000 μm min−1). Electron microscopy revealed that there are two length classes of pili, long type IV pili (1.0 to 5.8 μm) and short type I pili (0.4 to 1.0 μm). We further demonstrated that two knockout mutants (pilB and pilQ mutants) that are deficient in type IV pili do not twitch and are inhibited from colonizing upstream vascular regions in planta. In addition, mutants with insertions in pilB or pilQ (possessing type I pili only) express enhanced biofilm formation, whereas a mutant with an insertion in fimA (possessing only type IV pili) is biofilm deficient.
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Dissertations / Theses on the topic "Plants – Migration"

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MacArthur, Shona. "Bubbles guide migrating smolts around hydropower plants." Thesis, Umeå universitet, Institutionen för ekologi, miljö och geovetenskap, 2019. http://urn.kb.se/resolve?urn=urn:nbn:se:umu:diva-160490.

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The development of hydroelectric power production and the damming of water courses that ensues causes a threat to the migration patterns of Atlantic salmon (Salmo salar), by altering their habitat and compromising river connectivity. Because the species’ survival heavily depends on the completion of their migration between rivers and oceans, the design of guidance structures that promote successful passages around dams is a critical goal. Physical structures have been used to steer downwards-migrating smolts through safe fishways but they have not always proven effective, both from an ecological and economical perspective. In this study, the potential of bubbles in guiding salmon trajectories around a hydropower dam was tested as an alternative to existing guiding systems. Here the hypotheses were: i) bubbles guide downstream-migrating smolts around dams; ii) the reaction of smolts to a bubble barrier is linked to their individual boldness; iii) bubbles have varying effects on different school sizes. The first and third hypotheses were tested in the field, by recording sonar footage at the entrance of a fishway, downstream of a bubble barrier. The second hypothesis was evaluated by conducting a scototaxis experiment and an assessment of the reaction of young salmon to bubbles in the laboratory. My analysis of the fish abundance data collected in the river confirmed the first and third hypotheses. In the field, the presence of a predator (Esox lucius) was revealed to be a more influential factor than bubbles in regulating the number of smolts steered towards the fishway, indicating that predators generated a larger anxiety-like response in smolts than bubbles. In the controlled laboratory setting, there was no significant correlation between anxiety-like behaviour and reaction to bubbles and the second hypothesis did not appear to be valid. Therefore, the cause of avoidance of the barrier remains unclear, but bubble barriers seem to be an efficient and cost-effective structure for guiding downstream-migrating salmon smolts.
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Suddaby, Anthony J. R. "An experimental and theoretical investigation of the migration of moisture in cocoa beans." Thesis, London Metropolitan University, 1990. http://repository.londonmet.ac.uk/2993/.

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This work is essentially an investigation of non-convective moisture movement as the result of a temperature gradient in hygroscopic porous materials, in particular, cocoa beans. The aim of the research has been to determine experimentally the bulk moisture diffusion coefficient for cocoa, and, by quantifying it, to investigate the contribution of such diffusion to wetting and mould damage that has occurred on the surface of cargoes during shipment from West Africa to Northern Europe.
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Clark, Vincent Ralph. "The phytogeography of the Sneeuberg, Nuweveldberge and Roggeveldberge (Great Escarpment): assessing migration routes and endemism." Thesis, Rhodes University, 2010. http://hdl.handle.net/10962/d1003756.

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The Great Escarpment forms a semi-continuous mountain system 5 000 km long, stretching from Angola in the north-west, south through Namibia, and into western, southern and eastern South Africa, including Lesotho and Swaziland. It is composed of a wide variety of geological suites but is unified in representing the edge of the African plateau and the passive Gondwanan continental margin. The Great Escarpment falls into all major climatic zones on the subcontinent, is a repository of palaeo- and neo-endemics, hosts more than half of southern Africa‟s centres of plant endemism, and has a rich suite of endemic fauna. In addition, the Great Escarpment is believed to be both a refugium and corridor for biological diversity. Despite the biological richness of the Great Escarpment, research to date has been fragmented and many sections of the Great Escarpment have not been studied. The aim of this study is to contribute to research on the Great Escarpment by undertaking a detailed floristic study of the southern Great Escarpment (the Sneeuberg, Nuweveldberge and Roggeveldberge). Together these mountains comprise approximately 1 000 km (one fifth) of the Great Escarpment, and occupy a transition zone between the summer rainfall zone in the east and the winter rainfall zone in the west. They are also the sections of Great Escarpment most closely situated to the Cape Floristic Region (CFR) and would thus be involved in hypothesised migration routes for lineages that also occur further north through the Drakensberg Alpine Centre (DAC) to the East African mountain chain. Detailed fieldwork of the southern Great Escarpment was undertaken over a period of four years in all seasons. Approximately 8 000 specimens were collected. Particular emphasis was placed on areas that may represent refugia, i.e. the highest plateaux and peaks, mesic areas and cliff-lines. An overview of each mountain range, together with their endemic plant species and phytogeography, is provided. Approximately ten new species have been discovered during this study, two of which have been described to date. Numerous endemics only known from their types have also been rediscovered. The Sneeuberg is defined as a new centre of plant endemism on the Great Escarpment (endemism of 2.3%), and the role of the Boschberg and Groot-Bruintjieshoogde (part of the Sneeuberg) as a nexus for floristic migration routes is discussed. The Nuweveldberge is shown to have low endemism despite a floristic tally similar to the Sneeuberg, while the Roggeveldberge are confirmed to be the most endemic-rich section of the southern Great Escarpment. The field data collected was augmented by available data in taxonomic revisions, and floras for the Sneeuberg, Nuweveldberge and Roggeveldberge were compiled. In order to floristically compare the southern Great Escarpment with other sections of the Great Escarpment and the CFR, a database of some 12 000 taxa was created using available floristic data for the CFR, DAC and Great WinterbergAmatolas, together with the data collated for the Sneeuberg, Nuweveldberge and Roggeveldberge. These data were analysed using phenetic methods and Parsimony Analysis of Endemicity (PAE). The results indicate stronger linkages in the east, particularly between the Sneeuberg and Nuweveldberge, and between the Sneeuberg and the Great WinterbergAmatolas. The relationship of the Roggeveldberge with the rest of the southern Great Escarpment remains ambiguous. In order to refine notions of connectivity and migration routes, 19 well-sampled phylogenies were assessed for sister-taxon disjunctions to explore CFRGreat Escarpment connections. Palaeo-connectivity between the CFR and southern Great Escarpment is most strongly supported for the south-eastern (SE) connection, and less so for the north-western (NW) and Matjiesfontein connections. There is support for the current (or recent) use of these three connections from numerous species that occur on both sides of the connections. Results of these analyses indicate that the southern Great Escarpment is a palaeo-corridor, the functioning of which has been broken by the aridification of the Nuweveldberge since the Last Glacial Maximum (LGM). Floristic connectivity is strongest in the east, from the Nuweveldberge to the DAC, and is less so in the west between the Nuweveldberge and the Roggeveldberge a finding attributed to the transition from a reliable winter rainfall regime on the Roggeveldberge to an unpredictable moisture regime on the Nuweveldberge. The mountains of the southern Great Escarpment are thus a series of refugia from a previous moister, cooler climate and are a corridor between the eastern and western components of the Great Escarpment. The SE connection is the primary link between the CFR and the eastern Great Escarpment Afromontane region in southern Africa. The implications of this research are that accurate conservation assessments and Red Data listings for many of the previously poorly-known endemics can now be made, and appropriate conservation measures implemented. Climate change remains the primary threat to these endemics and montane taxa in general, while degradation of wetlands is the primary threat to the water catchment service provided by the southern Great Escarpment. Future detailed research on the Great WinterbergAmatolas and Stormberg and a comprehensive flora of the HantamRoggeveldberge will further enhance our understanding of the floristics of the southern Great Escarpment, and provide the necessary data for comprehensive GIS-based models of proposed climate change scenarios for local, regional and national conservation planning.
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Yahaya, Ewura Seidu. "The effect of three Ghanaian plants on fibroblast migration, inflammation and bacterial growth in vitro." Thesis, University of Pretoria, 2018. http://hdl.handle.net/2263/70048.

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Medical conditions which cause morbidity and mortality, such as chronic wounds and infection, lead to significant medical costs. Much of the world's population is dependent on alternative medicine, of which herbal medicine forms a crucial part. In Ghana and other countries around the world, an estimated 70% of the population rely on alternative treatments like herbs for management of various forms of disease. However, even though medicinal plants are widely used for treatment, most have not been scientifically proven to be safe and efficacious. Hence there is need to assess the biological activity of these plants which may be a potential lead in drug development. This study assessed the wound-related biological activities of three commonly used medicinal plants in Ghana (Aspilia africana, Boerhavia diffusa, and Erythrina senegalensis). Sequential extracts were prepared from the three plants using hexane, ethyl acetate, methanol, and water as solvents, in increasing polarity. Also, ethnomedicinal extracts were obtained with water as solvent, in accordance with the method used by traditional healers. Extracts were screened for phytochemical components using thin layer chromatography (TLC), and phytochemical fingerprinting performed with ultra performance liquid chromatography in tandem with time-of-flight mass spectrometry (UPLC-qTOF-MS). Cytotoxic potential of the extracts in SC-1 fibroblasts, C2C12-myoblasts, and differentiated THP-1-macrophages was determined using the sulforhodamine B staining assay, and cells morphologically assessed with phase contrast, PlasDIC, and live/dead staining microscopy. Acellular antioxidant activity was conducted by exploring the 2,2'-azino-bis[3-ethylbenzothiazoline-6-sulphonic acid] (ABTS) and 2,2-diphenyl-1-picrylhydrazyl (DPPH) radical scavenging activity, whilst ability to protect against cellular oxidative stress was assessed using 2',7'-dichlorofluorescin diacetate as marker. Anti-inflammatory potential of extracts was evaluated using xanthine oxidase activity. Also, the ability of extracts to alter closure of artificially generated wounds in fibroblast and myoblast monocultures was determined using the scratch assay. The extracts were also assessed for their antibacterial effect using the disk diffusion and microdilution assays. Extracts with a minimum inhibitory concentration (MIC) above or equal to 1 mg/mL were evaluated for their ability to inhibit bacterial biofilms. Analysis using TLC indicated that alkaloids, flavonoids, and phenols were the major groups present. The UPLC-qTOF-MS analysis led to the verification of previously identified, as well as tentative identification of already-described phytochemical compounds or their derivatives in the plants. In addition to the already reported ascorbic acid, quercetin was also identified in A. africana. Furthermore, kaempferol, quercetin, and rutin were identified in the extracts of B. diffusa, the latter compound being identified for the first time in this plant. Also, for the first time, kaempferol, rotenone and rutin, were identified in extracts of E. senegalensis. Apart from these three compounds, neobavaisoflavone was also detected. All the extracts recorded a half maximal inhibitory concentration (IC50) above 100 _g/mL in all three cell-lines. The most cytotoxic extracts to the myoblasts, fibroblasts, and macrophages, were the methanol and ethnomedicinal extracts of A. africana, and the hexane extract of E. senegalensis, with a maximum of 38.8% reduction in cell density respectively. The minimal cytotoxic potential of the extracts was further confirmed by the absence of morphological differences between treated and untreated cells. Most of the extracts exhibited good ABTS radical scavenging activity (IC50 < 100 _g/mL). The strongest effect against the free radical was observed with the ethyl acetate extract of B. diffusa (IC50 = 21.23 _g/mL). On the contrary, most of the extracts recorded poor ability to scavenge the DPPH free radical. Only the methanol extracts of A. africana (IC50 = 278 _g/mL) and E. senegalensis (IC50 = 291 _g/mL) yielded IC50 values below the maximum tested concentration (320 _g/mL). This could possibly be ascribed to the differences in the stereoselectivity between the two free radicals, and the poor DPPH scavenging ability of hydrophilic antioxidants. The effect of the extracts against AAPH-induced oxidation in the cells correlated with the antioxidant potential of the extracts. Whilst most of the extracts with good antioxidant potential suppressed AAPH-induced oxidative stress, the most profound effect was observed with pre-treatment of macrophages with the ethyl acetate extract of A. africana. The extract caused a 1.74-fold decrease in intracellular reactive oxygen species (ROS) concentration after 120 min following pre-treatment with 100 _g/mL, when compared with the AAPH control. This was comparable to the 1.89-fold reduction caused by the positive control compound, 5 _g/mL Trolox. The ethnomedicinal extracts of B. diffusa and E. senegalensis exhibited a dose-dependent increase in intracellular ROS in fibroblasts, with intracellular ROS concentration upon treatment with the extracts at 100 _g/mL being at least 23% higher than the negative controls. This suggest that the extracts could exhibit a possible pro-oxidant effect at higher concentrations. Quercetin, a compound with pro-oxidant effects at higher concentrations, was detected in the ethyl acetate extract of B. diffusa, which may describe this effect. However, none of the extracts used in the current study demonstrated the ability to significantly inhibit xanthine oxidase activity. The strongest activity against the enzyme (maximum of 15% inhibition) was exhibited by extracts of E. senegalensis. The hexane extract of A. africana and the water extracts of B. diffusa increased migration of myoblast cells by 44.4% and 39.4%, respectively. This indicates a possible role of the extracts in enhancing collagen deposition and wound remodelling, two processes with myoblast involvement. On the other hand, six of the extracts decreased fibroblast migration, and therefore could have negative effects on wound healing processes such as collagen and matrix metalloproteinase synthesis. Further analysis would be required to ascertain the extent to which the extracts could impact activity of the cells. Also, the methanol extract of E. senegalensis (MIC = 0.5 mg/mL in E. coli) was the most effective against the micro-organisms tested. All the other extracts had MICs above 1 mg/mL. None of the extracts showed activity against Pseudomonas aeruginosa, Staphylococcus epidermidis and bacterial biofilms. In conclusion, this study has scientifically demonstrated that the three plants may assist wound healing at different stages in the healing process. This could be achieved through their antioxidant effects, ability to suppress oxidative stress, antibacterial activity, and ability to enhance activity of fibroblasts and myoblasts. Practitioners should be cautioned against using high concentrations because of possible cytotoxicity.
Thesis (PhD)--University of Pretoria, 2018.
Pharmacology
PhD
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Villeneuve, Isabelle. "Variation morpho-physiologique des plants d'épinette blanche de différentes sources génétiques et implications pour la migration assistée." Master's thesis, Université Laval, 2015. http://hdl.handle.net/20.500.11794/26054.

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Les semences forestières génétiquement améliorées pourraient ne plus être adaptées aux sites où elles sont destinées à cause des changements climatiques. La migration assistée figure parmi les stratégies d'adaptation proposées pour maintenir la productivité forestière et diminuer la vulnérabilité des écosystèmes. Les réponses morpho-physiologiques des plants d’épinette blanche (Picea glauca (Moench) Voss) issus de huit vergers à graines ont été évaluées en pépinière et sur trois sites de plantation. La modélisation des courbes de croissance a montré que la hauteur des vergers méridionaux et de deuxième génération est significativement supérieure à celle des autres vergers. Un modèle à régression multiple a montré que la hauteur finale des plants était significativement corrélée aux conditions climatiques d’origine des vergers. Le verger et le site de plantation ont affecté significativement la croissance en hauteur des plants. Les résultats de la présente étude et ceux obtenus à long terme contribueront à raffiner les règles opérationnelles de transfert des semences propres à la migration assistée.
Due to climate change, genetically improved trees may no longer be adapted to the sites where they are intended to be planted. Assisted migration is a potential adaptation strategy for maintaining forest productivity and reducing vulnerability in the face of a changing climate. Morpho-physiological responses of white spruce (Picea glauca (Moench) Voss) seedlings from eight seed orchards were evaluated in a nursery and at three planting sites. The modeling of growth curves showed that the height of both the southern orchards and second generation orchards was significantly higher than the other orchards. A multiple regression model showed that the final height of the plants was significantly correlated with climatic conditions of the orchards. The orchard and the planting site significantly affected height growth of seedlings. The results of this study and those obtained over the longer term should help to refine the operational rules of seed transfer for assisted migration.
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Hu, Qing. "Migration and plant uptake of radionuclides in laboratory soil columns and field lysimeter with contaminated water tables." Thesis, Imperial College London, 1998. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.287371.

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Knight, Richard Spencer, and Richard Spencer Knight. "Aspects of plant dispersal in the southwestern Cape with particular reference to the roles of birds as dispersal agents." Doctoral thesis, University of Cape Town, 1988. http://hdl.handle.net/11427/23272.

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The dispersal of plants with particular attention to the roles birds play as dispersal agents was studied in the southwestern Cape, South Africa from 1983 to 1985. The research was organized as ten inter-related studies, each with an independent data base. Each chapter focused on a different scale of plant dispersal processes ranging from regional assemblages of plant species to individual species. At the largest scale, the seven vegetation types commonly occurring in the southwestern Cape were examined for incidence of vertebrate-dispersed plants. Coastal Thicket and Afromontane Forest were found to be the richest in these species. The colonization of vertebrate-dispersed plants was examined in an artificially cleared area of Mountain Fynbos vegetation. Enhanced densities of vertebrate-dispersed species were found in areas where perches had been provided. The seasonal availability of vertebrate-dispersed species was found to be most continuous in Coastal Thicket vegetation. Fruit displays of vertebrate-dispersed indigenous plants were found to vary from those that were sporadic and inconspicuous, to those that were conspicuous and predictable, whereas those of alien plants were usually large and conspicuous. Avian use of these fleshy fruits in Coastal Thicket was examined and found to be proportional to their availability. A study of fruit presentation in relation to leaf number and stem thickness suggested that sessile, stem attached fruits have fewer local leaves at time of ripening than fruits which are presented in panicles. This may enhance accessibility and conspicuousness of stem attached fruits for dispersal by birds. Four autecological studies tested certain predictions arising from models developed to describe fruit/frugivore interactions. The dispersal of the alien Acacia cyclops seeds by the indigenous Black Korhaan Eupodotis afra suggested that successful fruit/frugivore relationships are not necessarily the product of reciprocal evolution. The study on Chrysanthemoides monilifera found that efficient dispersal systems are not limited to plants producing small quantities of lipid-rich fruits and to dispersal by obligate frugivores. The abiotic dispersal of Quercus robur was found to be efficient in relation to vertebrate-dispersal. The study on Protasparagus aethiopicus found that the morphology of fleshy fruits may also reflect attempts to overcome the effects of non-dispersing seed predators. 1It is concluded that a gradient from a predictable to unpredictable fruit availability provides a better basis for studying fruit/frugivore interactions than the coevolutionary models. previously presented.
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Everist, Mary Patricia. "Immigrant vulnerability in high-risk industry a socio-occupational examination of counties with large meatpacking plants in Iowa and Nebraska /." [Tampa, Fla.] : University of South Florida, 2005. http://purl.fcla.edu/fcla/etd/SFE0001051.

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Bytebier, Benny (Benny Leopold Germaine). "Molecular phylogenetic relationships within the subtribe Disinae (Orchidaceae) and their taxonomic, phytogeographic and evolutionary implications." Thesis, Stellenbosch : Stellenbosch University, 2007. http://hdl.handle.net/10019.1/19441.

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Dissertation (PhD)--University of Stellenbosch, 2007.
ENGLISH ABSTRACT: Twenty five years after the last major morphological revision, phylogenetic relationships were inferred on the basis of a new DNA dataset for the African orchid subtribe Disinae, which includes the large genus Disa and the small genus Schizodium. One nuclear gene region (ITS) and two plastid gene regions (trnLF and matK) were sequenced for 136 ingroup, representing 70% of all known Disinae species, as well as for 7 outgroup taxa. The combined data matrix contained 4094 characters and was analysed using parsimony and Bayesian inference. The generic status of Schizodium can no longer be supported, as it is deeply embedded within the genus Disa. Furthermore, the currently recognised subgenera do not reflect the phylogenetic relationships. Several of the currently recognised sections are monophyletic, others contain misplaced elements, while some are polyphyletic. These results necessitate a re-classification of the Disinae. A monotypic subtribe Disinae and a subdvision of Disa into eighteen sections is formally proposed. These sections are monophyletic, well-supported, morphologically distinguishable and are delimited to maximize the congruence with the previous classification. All currently known species are enumerated and assigned to sections. Likelihood optimisation onto a dated molecular phylogeny is subsequently used to explore the historical biogeography of Disa, as well as of three other Cape lineages (Irideae p.p., the Pentaschistis clade and Restionaceae), to find out where these lineages originated and how they spread through the Afrotemperate region. Three hypotheses have been proposed: (i) a tropical origin with a southward migration towards the Cape; (ii) a Cape origin with a northward migration into tropical Africa and (iii) vicariance. None of these hypotheses, however, has been thoroughly tested. In all cases, tropical taxa are nested within a predominantly Cape clade and there is unidirectional migration from the Cape into the Drakensberg and from there northwards into tropical Africa. Dating estimates show that the migration into tropical East Africa has occurred in the last 17 million years, consistent with the Mio-Pliocene formation of the mountains in this area. The same technique is then utilised to reconstruct the temporal occurrence of ancestral ecological attributes of the genus Disa. The first appearance of species in the grassland and savanna biomes, as well as in the subalpine habitat, are in agreement with the existing, reliable geological and paleontological information. This suggests that phylogenies can be used to date events for which other information is lacking or inconclusive, such as the age of the fynbos biome and the start of the winter rainfall regime in southern Africa. The results indicate that these are much older than what is currently accepted and date back to at least the Oligocene.
AFRIKAANSE OPSOMMING: Vyf-en-twintig jaar na die laaste groot morfologiese hersiening, is die filogenetiese verwantskappe van die Afrika orgideë subtribus Disinae, wat die groot genus Disa en die klein genus Schizodium insluit, in hierdie studie op grond van ‘n nuwe DNA datastel afgelei. Daar is van 136 binnegroep, wat 70% van alle bekende Disinae spesies verteenwoordig, sowel as sewe buitegroep taksa geenopeenvolgings van een nukleêre geen streek (ITS) en twee plastiedgeen streke (trnLF en matK) bepaal. Die gekombineerde data matriks het 4094 karakters bevat en is met die parsimonie en Bayesian metodes ontleed. Die generiese status van Schizodium kan nie hieruit ondersteun word nie, en is diep ingebed binne die genus Disa. Die huidiglik aanvaarde subgenera word ook nie deur hierdie filogenie ondersteun nie. Verskeie van die huidiglik herkende seksies is bevind om monofileties te wees, ander bevat verkeerd geplaasde spesies, terwyl ander polifileties blyk te wees. ’n Monotipiese subtribus Disinae en ’n onderverdeling van Disa in agtien seksies word formeel voorgestel. Dié seksies is monofilities, goed ondersteun, morfologies onderskeibaar en omskryf om maksimaal ooreen te stem met die vorige klassifikasie. Alle huidiglik bekende spesies word gelys en toegewys aan seksies. Waarskynlikheidsoptimalisering op ’n gedateerde molekulêre filogenie is dan gebruik om die historiese biogeografie van Disa te ondersoek, tesame met drie ander Kaapse groepe (Irideae p.p., die Pentaschistis klade en Restionaceae), om te bepaal waar hierdie groepe hulle oorsprong gevind het en hoe hulle na die “Afrotemperate“ streek versprei het. Drie hipoteses word voorgestel: (i) ’n tropiese oorsprong met ’n suidwaartse migrasie na die Kaap; (ii) ’n Kaapse oorsprong met ’n noordwaartse migrasie na tropiese Afrika, en (iii) vikariansie. Geen van hierdie hipoteses is egter vantevore deeglik getoets nie. In alle gevalle is bevind dat die tropiese taksa oorwegend binne ’n Kaapse klade gesetel is, en dat daar ’n eenrigting migrasie is van die Kaap na die Drakensberge en van daar noordwaarts na tropiese Afrika. Dateringsskattings toon dat die migrasie na tropiese Oos-Afrika in die laaste 17 miljoen jaar plaasgevind het, ooreenstemmend met die Mio-Plioseen vorming van die berge in die area. Dieselfde tegniek is daarna aangewend om die temporale voorkoms van voorvaderlike ekologiese eienskappe van die genus Disa te rekonstrueer. Die eerste voorkoms van die spesies in die grasveld en savanna biome, sowel as die subalpiene habitat, is in ooreenstemming met bestaande, betroubare geologiese en paleontologiese informasie. Dit suggereer dat filogenieë gebruik kan word om gebeurtenisse te dateer waarvoor daar informasie ontbreek of nie beslissend is nie, soos die ouderdom van die Fynbos bioom en die begin van die winterreënval stelsel in suider-Afrika. Die resultate dui daarop dat dit heelwat ouer is as wat tans aanvaar word en terugdateer na ten minste die Oligoseen.
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MOLNARY, LESLIE de. "Caracterizacao de um modelo de camada limite planetaria para avaliar liberacoes de radionuclideos em instalacoes nucleares." reponame:Repositório Institucional do IPEN, 1993. http://repositorio.ipen.br:8080/xmlui/handle/123456789/10355.

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Dissertacao (Mestrado)
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Instituto Astronomico e Geofisico, Universidade de Sao Paulo - IAG/USP
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Books on the topic "Plants – Migration"

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Symposium, International Association for Vegetation Science International. Chorological phenomena in plant communities: Proceedings of the 26th International Symposium of the International Association for Vegetation Science, held at Prague, 5-8 April 1982. Dordrecht: W. Junk, 1985.

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Simon, Seymour. Ride the wind: Airborne journeys of animals and plants. San Diego: Browndeer Press, 1997.

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1938-, Werner Dietrich, ed. Biological resources and migration. Berlin: Springer, 2004.

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Winged migration. San Francisco, Calif: Chronicle Books, 2003.

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P, Jacquard, Heim G, Antonovics J, and North Atlantic Treaty Organization. Scientific Affairs Division., eds. Genetic differentiation and dispersal in plants. Berlin: Published in cooperation with NATO Scientific Affairs Division [by] Springer-Verlag, 1985.

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Development, displacement, and resettlement. Jaipur: Rawat Publications, 2004.

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Plant migration: The dynamics of geographic patterning in seed plant species. Berkeley: University of California Press, 1988.

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I, Malyshev L., and Krasnoborov Ivan Moiseevich, eds. Metody sravnitelʹnoĭ floristiki i problemy florogeneza. Novosibirsk: Izd-vo "Nauka," Sibirskoe otd-nie, 1986.

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Marvellous migrators. Oxford: Heinemann Library, 2003.

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London, Geological Society of, ed. The Terrestrialization process: Modelling complex interactions at the biosphere-geosphere interface. London: Geological Society, 2010.

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Book chapters on the topic "Plants – Migration"

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Vogel, Kenneth P. "Humans, Climate, and Plants: the Migration of Crested Wheatgrass and Smooth Bromegrass to the Great Plains of North America." In Biological Resources and Migration, 35–45. Berlin, Heidelberg: Springer Berlin Heidelberg, 2004. http://dx.doi.org/10.1007/978-3-662-06083-4_4.

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Gemmeke, Amber. "West African Plants and Prayers in the Netherlands: Nourishment Through Visible and Invisible Substances." In Food Parcels in International Migration, 143–67. Cham: Springer International Publishing, 2017. http://dx.doi.org/10.1007/978-3-319-40373-1_7.

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Kazachonok, N. N., and I. Y. Popova. "Migration of 90Sr and 137Cs in the Soil After Radiation Accidents." In Radionuclide Contamination and Remediation Through Plants, 297–314. Cham: Springer International Publishing, 2014. http://dx.doi.org/10.1007/978-3-319-07665-2_15.

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Mazzoni, C., and P. H. Gouyon. "Horizontal Structure of Populations : Migration, Adaptation and Chance. An experimental study on Thymus vulgaris L." In Genetic Differentiation and Dispersal in Plants, 395–412. Berlin, Heidelberg: Springer Berlin Heidelberg, 1985. http://dx.doi.org/10.1007/978-3-642-70837-4_26.

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Rovdan, E. N., and A. M. Abramets. "Physicochemical processes effecting 137Cs and 90Sr migration in soils and uptake by plants." In Plant Nutrition, 996–97. Dordrecht: Springer Netherlands, 2001. http://dx.doi.org/10.1007/0-306-47624-x_485.

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Sengupta, Debashish, and Sudha Agrahari. "Heavy Metal and Radionuclide Contaminant Migration in the Vicinity of Thermal Power Plants: Monitoring, Remediation, and Utilization." In Modelling Trends in Solid and Hazardous Waste Management, 15–33. Singapore: Springer Singapore, 2017. http://dx.doi.org/10.1007/978-981-10-2410-8_2.

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Peter, Armin, Nils Schoelzel, Lisa Wilmsmeier, Ismail Albayrak, Francisco Javier Bravo-Córdoba, Ana García-Vega, Juan Francisco Fuentes-Pérez, et al. "The Attractiveness of Fishways and Bypass Facilities." In Novel Developments for Sustainable Hydropower, 61–81. Cham: Springer International Publishing, 2022. http://dx.doi.org/10.1007/978-3-030-99138-8_5.

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AbstractThis chapter deals with the conventional upstream fish passage technologies developed for a safe fish migration at run-of-river hydropower plants (HPPs). It covers the factors influencing successful migration, current status, practices and challenges, novel developments, recommendations and outlook. Main focusses of this chapter are on the attractiveness of fishways and bypass facilities based on FIThydro study results. Although upstream fish passage technologies are well developed, there are still research gaps on their effectiveness related to their attractiveness and passabilities. FIThydro fills such research gaps by providing tools, methods, devices and best practice examples. This chapter covers the field studies at the case study HPP Guma with pool and weir fishway in Spain and Schiffmühle with vertical-slot and nature-like fishways in Switzerland and a combination of field, laboratory and numerical simulation studies of vertical-slot fishway in France. The results of these three studies contribute to better fishway design for a range of fish species and hydraulic conditions.
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Kotanen, Peter M. "Direct and indirect effects of herbivores influencing plant invasions." In Plant invasions: the role of biotic interactions, 226–40. Wallingford: CABI, 2020. http://dx.doi.org/10.1079/9781789242171.0226.

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Abstract Non-native plants rarely escape damage by herbivores. Instead, upon arrival in a new region, they begin to acquire new enemies, replacing those they have lost during their migration. These herbivores can include both natives to the new region and species that have themselves been accidentally or deliberately introduced from elsewhere, potentially including examples originating from the invader's original range. Shifts of new enemies from other hosts can occur over a range of timescales, depending in part on whether evolutionary change is required, but are likely to be faster for plants that are widespread and phylogenetically related to a herbivore's original host, and faster for generalist herbivores than for specialists. The occurrence of herbivores is not necessarily uniform across an invader's range; instead, they may be less diverse or abundant in host populations that are geographically or ecologically marginal, though existing evidence is mixed. Collectively, these new suites of herbivores can affect the growth and fitness of invaders, both directly by damaging them and indirectly by attacking their competitors. Studies comparing the demographic consequences of herbivory for successful vs unsuccessful invaders may help to clarify how often such impacts limit invasiveness. The view that an invader enters 'enemy-free' space is inaccurate; instead, persistence and spread of non-native plants often may be affected by the novel and changing assemblage of herbivores that they acquire within their new distribution.
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Terquem, Caroline, John C. B. Papaloizou, and Richard P. Nelson. "Disks, Extrasolar Planets and Migration." In From Dust to Terrestrial Planets, 323–40. Dordrecht: Springer Netherlands, 2000. http://dx.doi.org/10.1007/978-94-011-4146-8_21.

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Orlando, Anthony W. "The Great Migration." In Keeping Races in Their Places, 1–19. New York: Routledge, 2021. http://dx.doi.org/10.1201/b22708-1.

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Conference papers on the topic "Plants – Migration"

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Sasaki, Y., M. Usa, B. Devaraj, M. Yamada, and H. Inaba. "Noninvasive spectroscopic computed tomography of plants in situ using near infrared lasers." In Advances in Optical Imaging and Photon Migration. Washington, D.C.: OSA, 1998. http://dx.doi.org/10.1364/aoipm.1998.atud28.

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Tchaikovskaya, L. A., O. L. Ovsienko, M. I. Baranskaya, and N. N. Klimenko. "Evaluation of influence microbial preparation on the migration of Cu compounds in soil – plant systemby growth of winter wheat." In IX Congress of society physiologists of plants of Russia "Plant physiology is the basis for creating plants of the future". Kazan University Press, 2019. http://dx.doi.org/10.26907/978-5-00130-204-9-2019-464.

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o, MACHIELS, ERPICUM S, PIROTTON M, ARCHAMBEAU P, and THEUNISSEN P. "Design of a Downstream Migration Fish Pass for Existing Hydropower Plants." In 38th IAHR World Congress. The International Association for Hydro-Environment Engineering and Research (IAHR), 2019. http://dx.doi.org/10.3850/38wc092019-0714.

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Poot Pech, Mario A. "Indicator plants in solitary phase and migration behavior ofSchistocerca piceifronsin Yucatán, México." In 2016 International Congress of Entomology. Entomological Society of America, 2016. http://dx.doi.org/10.1603/ice.2016.94370.

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Yonggang, Lin. "Study on the Feasibility of Power Supply Migration in Production Preparation Area of the Nuclear Power Station." In 2022 29th International Conference on Nuclear Engineering. American Society of Mechanical Engineers, 2022. http://dx.doi.org/10.1115/icone29-92186.

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Abstract Since 2016, Some nuclear power plants in the northern region has been facing severe situation due to seasonal heating; and because of seasonal hydropower generation, the generation situation of some nuclear power plants in the southern region is more serious. At present, the power supply in the production preparation area of most nuclear plants is mostly purchased electricity. There is a big difference between the price of electricity purchased from external power grid and the cost of power generation from nuclear plant. Therefore, if the production preparation area of the nuclear power plant power consumption is changed to power supply by itself (Auxiliary power), it will make a great contribution to energy saving and power saving, cost reduction and efficiency promotion. There is no study on the efficiency promotion of nuclear power generating units at home. This study mainly focuses on the project of power supply migration in production preparation area of nuclear power plant. This study is carried out from four aspects: transformer capacity, bus voltage drop of 6.6kV, capacitive current, and economy. The definition of production preparation area of nuclear power plant: the living area of the on-duty dormitory of the plant, administrative office area and other relevant areas.
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Ballora, Mark. "Music of Migration and Phenology: Listening to Counterpoints of Musk Ox and Caribou Migrations, and Cycles of Plant Growth." In The 22nd International Conference on Auditory Display. Arlington, Virginia: The International Community for Auditory Display, 2016. http://dx.doi.org/10.21785/icad2016.016.

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This extended abstract describes a sonification that was commissioned by a biologist/animal ecologist. The sonification was created with the software synthesis program SuperCollider [1]. The motivation for creating it was to pursue additional levels of engagement and immersion by supplementing the effects of visual plots, as well as to create an informative rendering of a multivariate dataset. The goal is for audiences, in particular students and laypeople, to readily understand (and hopefully find compelling) the phenomena being described. The approach is parameterbased, creating “sonic scatter plots” [2] in the same manner as work described in earlier publications [3], [4]. The work described here is a current experimental project that takes a sonic approach to describing the interactions of plant phenology and animal migrations in Greenland. This area is seen as a predictor of how climate change may affect areas farther south. There is concern about the synchronicity of annual caribou migrations with the appearance of plant food sources, as warmer temperatures may cause plants to bloom earlier and in advance of the caribou arrival at their calving grounds; depleted food availability at calving time can lead to lower populations of caribou. Parts of this sonification will be applied to a multi-year professional development workshop for middle and high school science teachers. It is hoped that sonifications of plant observations made by teachers and students will enhance student engagement, and possibly lead to greater degrees of understanding of phenology patterns.
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Le Mottee, Kris. "Long term changes in host plants ofHelicoverpa punctigerain inland Australia: Effects on migration patterns." In 2016 International Congress of Entomology. Entomological Society of America, 2016. http://dx.doi.org/10.1603/ice.2016.107589.

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Peng, Xu, and Tian Ruifeng. "Migration Characteristics of Sub-Source Items in Breach Occurrences." In 2021 28th International Conference on Nuclear Engineering. American Society of Mechanical Engineers, 2021. http://dx.doi.org/10.1115/icone28-64606.

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Abstract In the loss of coolant accident in a PWR nuclear power plant, the loss of coolant will cause the core to melt, resulting in the release of large amounts of radioactive fission products from the core[1]. Therefore, nuclear power plants must have effective protective measures to prevent the release of radioactive fission products to protect workers, the surrounding population, and the environment from radiological hazards. Most of the current scholars have conducted detailed studies using modular software such as MELCOR[2], but the three-dimensional distribution of the source material in the breach space cannot be visualized using this method. In this paper, a typical pressurized water reactor nuclear power plant is taken as the research object. CFD method is used to analyze the condition of coolant loss accident, study the force of radioactive aerosols matter from different heights away from the wall under the accident condition, and consider the influence of ventilation system on the distribution and migration characteristics of the source matter in space. The results show that the migration behavior of particles is mainly affected by gravity and drag force. For particles with small size, the combined action of gravity and thermophilic force causes them to deposit at the wall surface, while for particles with large size, gravity causes them to deposit at the wall surface. The particle deposition on the wall surface can be effectively reduced by increasing the flow velocity and decreasing the fluid temperature at the breach.
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Zhang, Qiong. "The Vertical Leaching Migration Research on 137Cs in Soil Around Shidaowan Plant of CAP1400." In 2021 28th International Conference on Nuclear Engineering. American Society of Mechanical Engineers, 2021. http://dx.doi.org/10.1115/icone28-64641.

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Abstract The risk of radioactive material leakage caused by nuclear accidents increased with the increasing of number of Nuclear Power Plants in China. One of the serious threat of radiation harm to the human body is believed to be 137Cs. It can exist in the environment for a long time, due to the half-life of which is as long as about 30 years. In this research, the brown soil and aeolian sandy soil were selected as two kinds of classic soil around the site of Shidaowan demonstration plant of CAP1400 to carry out the 137Cs migration model experiments. The source of radioactivity was put on the 16 of experiment columns that were filled by undisturbed soil, the simulated raining weather was according to the local rainfall amount with two sprinklers, and the sunlight was replaced by fluorescent lamp. The result showed that the vertical migration model of radionuclides in soil is one-dimensional convective dispersion equation. three-year experiments showed that most of 137Cs in soil were distributed in the range of 0–4cm. The simulation results using the Hydrus 1D with 10 years that most of 137Cs in soil were distributed in the range of 0–10cm, so the nuclear accident caused by the serious nuclides have little impact on groundwater.
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Nevidomskaya, D. G., T. M. Minkina, N. E. Kravtsova, V. A. Chaplygin, and A. P. Scherbakov. "ANALYSIS OF POLLUTION BY HEAVY METALS OF SOILS AND PLANTS OF THE DELTA OF THE DON RIVER AND THE COAST OF THE TAGANROG BAY." In STATE AND DEVELOPMENT PROSPECTS OF AGRIBUSINESS Volume 2. DSTU-Print, 2020. http://dx.doi.org/10.23947/interagro.2020.2.372-375.

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Complex studies in the terrestrial components of the ecosystems in the Don River and the coast of the Taganrog Bay were carried out. Monitoring plots were selected that gave an idea of the sources of input, migration flows and zones of accumulation of heavy metals in soils and plants. High mobility of Zn, Pb, Ni, and Cu in soils was established, statistically significant linear correlations between the total content of Zn, Cg, Ni, Mn, Cr, and Pb in soils and plants were determined.
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Reports on the topic "Plants – Migration"

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McClure, Michael A., Yitzhak Spiegel, David M. Bird, R. Salomon, and R. H. C. Curtis. Functional Analysis of Root-Knot Nematode Surface Coat Proteins to Develop Rational Targets for Plantibodies. United States Department of Agriculture, October 2001. http://dx.doi.org/10.32747/2001.7575284.bard.

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The goal of this research was to provide a better understanding of the interface between root-knot nematodes, Meloidogyne spp., and their host in order to develop rational targets for plantibodies and other novel methods of nematode control directed against the nematode surface coat (SC). Specific objectives were: 1. To produce additional monoclonal SC antibodies for use in Objectives 2, 3, and 4 and as candidates for development of plantibodies. 2. To determine the production and distribution of SC proteins during the infection process. 3. To use biochemical and immunological methods to perturbate the root-knot nematode SC in order to identify SC components that will serve as targets for rationally designed plantibodies. 4. To develop SC-mutant nematodes as additional tools for defining the role of the SC during infection. The external cuticular layer of nematodes is the epicuticle. In many nematodes, it is covered by a fuzzy material termed "surface coat" (SC). Since the SC is the outermost layer, it may playa role in the interaction between the nematode and its surroundings during all life stages in soil and during pathogenesis. The SC is composed mainly of proteins, carbohydrates (which can be part of glycoproteins), and lipids. SC proteins and glycoproteins have been labeled and extracted from preparasitic second-stage juveniles and adult females of Meloidogyne and specific antibodies have been raised against surface antigens. Antibodies can be used to gain more information about surface function and to isolate genes encoding for surface antigens. Characterization of surface antigens and their roles in different life-stages may be an important step towards the development of alternative control. Nevertheless, the role of the plant- parasitic nematode's surface in plant-nematode interaction is still not understood. Carbohydrates or carbohydrate-recognition domains (CROs) on the nematode surface may interact with CROs or carbohydrate molecules, on root surfaces or exudates, or be active after the nematode has penetrated into the root. Surface antigens undoubtedly play an important role in interactions with microorganisms that adhere to the nematodes. Polyclonal (PC) and monoclonal (MC) antibodies raised against Meloidogyne javanica, M. incognita and other plant-parasitic nematodes, were used to characterize the surface coat and secreted-excreted products of M. javanica and M. incognita. Some of the MC and PC antibodies raised against M. incognita showed cross-reactivity with the surface coat of M. javanica. Further characterization, in planta, of the epitopes recognized by the antibodies, showed that they were present in the parasitic juvenile stages and that the surface coat is shed during root penetration by the nematode and its migration between root cells. At the molecular level, we have followed two lines of experimentation. The first has been to identify genes encoding surface coat (SC) molecules, and we have isolated and characterized a small family of mucin genes from M. incognita. Our second approach has been to study host genes that respond to the nematode, and in particular, to the SC. Our previous work has identified a large suite of genes expressed in Lycopersicon esculentum giant cells, including the partial cDNA clone DB#131, which encodes a serine/threonine protein kinase. Isolation and predicted translation of the mature cDNA revealed a frame shift mutation in the translated region of nematode sensitive plants. By using primers homologous to conserved region of DB#131 we have identified the orthologues from three (nematode-resistant) Lycopersicon peruvianum strains and found that these plants lacked the mutation.
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Ahn, J., P. L. Chambre, and T. H. Pigford. Nuclide migration through a planar fissure with matrix diffusion. Office of Scientific and Technical Information (OSTI), April 1985. http://dx.doi.org/10.2172/5754183.

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Jung, Jacob, Richard Fischer, Chester McConnell, and Pam Bates. The use of US Army Corps of Engineers reservoirs as stopover sites for the Aransas–Wood Buffalo population of whooping crane. Engineer Research and Development Center (U.S.), August 2022. http://dx.doi.org/10.21079/11681/44980.

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This technical report summarizes the use of US Army Corps of Engineers (USACE) reservoirs as spring and fall migration stopover sites for the endangered Aransas–Wood Buffalo population of whooping cranes (WHCR), which proved much greater than previously known. We assessed stopover use within the migration flyway with satellite transmitter data on 68 WHCR during 2009–2018 from a study by the US Geological Survey (USGS) and collaborators, resulting in over 165,000 location records, supplemented by incidental observations from the US Fish and Wildlife Ser-vice (USFWS) and the USGS Biodiversity Information Serving Our Nation (BISON) databases. Significant stopover use was observed during both spring and fall migration, and one reservoir served as a wintering location in multiple years. Future efforts should include (a) continued monitoring for WHCR at USACE reservoirs within the flyway; (b) reservoir-specific management plans at all projects with significant WHCR stopover; (c) a USACE-specific and range-wide Endangered Species Act Section 7(a)(1) conservation plan that specifies proactive conservation actions; (d) habitat management plans that include potential pool-level modifications during spring and fall to optimize stopover habitat conditions; and (e) continued evaluation of habitat conditions at USACE reservoirs.
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Hunt, Arlen. Waste Isolation Pilot Plant No-Migration Variance Petition. Revision 1, Volume 1. Office of Scientific and Technical Information (OSTI), March 1990. http://dx.doi.org/10.2172/10175355.

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Sheridan, Anne. Annual report on migration and asylum 2016: Ireland. ESRI, November 2017. http://dx.doi.org/10.26504/sustat65.

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The Annual Report on Migration and Asylum 2016 provides an overview of trends, policy developments and significant debates in the area of asylum and migration during 2016 in Ireland. Some important developments in 2016 included: The International Protection Act 2015 was commenced throughout 2016. The single application procedure under the Act came into operation from 31 December 2016. The International Protection Office (IPO) replaced the Office of the Refugee Applications Commissioner (ORAC) from 31 December 2016. The first instance appeals body, the International Protection Appeals Tribunal (IPAT), replacing the Refugee Appeals Tribunal (RAT), was established on 31 December 2016. An online appointments system for all registrations at the Registration Office in Dublin was introduced. An electronic Employment Permits Online System (EPOS) was introduced. The Irish Short Stay Visa Waiver Programme was extended for a further five years to October 2021. The Second National Action Plan to Prevent and Combat Human Trafficking was published. 2016 was the first full year of implementation of the Irish Refugee Protection Programme (IRPP). A total of 240 persons were relocated to Ireland from Greece under the relocation strand of the programme and 356 persons were resettled to Ireland. Following an Oireachtas motion, the Government agreed to allocate up to 200 places to unaccompanied minors who had been living in the former migrant camp in Calais and who expressed a wish to come to Ireland. This figure is included in the overall total under the IRPP. Ireland and Jordan were appointed as co-facilitators in February 2016 to conduct preparatory negotiations for the UN high level Summit for Refugees and Migrants. The New York Declaration, of September 2016, sets out plans to start negotiations for a global compact for safe, orderly and regular migration and a global compact for refugees to be adopted in 2018. Key figures for 2016: There were approximately 115,000 non-EEA nationals with permission to remain in Ireland in 2016 compared to 114,000 at the end of 2015. Net inward migration for non-EU nationals is estimated to be 15,700. The number of newly arriving immigrants increased year-on-year to 84,600 at April 2017 from 82,300 at end April 2016. Non-EU nationals represented 34.8 per cent of this total at end April 2017. A total of 104,572 visas, both long stay and short stay, were issued in 2016. Approximately 4,127 persons were refused entry to Ireland at the external borders. Of these, 396 were subsequently admitted to pursue a protection application. 428 persons were returned from Ireland as part of forced return measures, with 187 availing of voluntary return, of which 143 were assisted by the International Organization for Migration Assisted Voluntary Return Programme. There were 532 permissions of leave to remain granted under section 3 of the Immigration Act 1999 during 2016. A total of 2,244 applications for refugee status were received in 2016, a drop of 32 per cent from 2015 (3,276). 641 subsidiary protection cases were processed and 431 new applications for subsidiary protection were submitted. 358 applications for family reunification in respect of recognised refugees were received. A total of 95 alleged trafficking victims were identified, compared with 78 in 2015.
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Author, Not Given. Waste Isolation Pilot Plant: No-Migration Variance Petition. Figures: Volume 8, Revision 1. Office of Scientific and Technical Information (OSTI), March 1990. http://dx.doi.org/10.2172/917922.

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Author, Not Given. Waste Isolation Pilot Plant No-migration variance petition. Addendum: Volume 7, Revision 1. Office of Scientific and Technical Information (OSTI), March 1990. http://dx.doi.org/10.2172/10176659.

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Boring, Ronald Laurids, Jeffrey Clark Joe, and Thomas Anthony Ulrich. Strategy for Migration of Traditional to Hybrid Control Boards in a Nuclear Power Plant. Office of Scientific and Technical Information (OSTI), July 2014. http://dx.doi.org/10.2172/1236821.

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Vaughn, P., B. Butcher, J. Helton, and P. Swift. Modeling gas and brine migration for assessing compliance of the Waste Isolation Pilot Plant. Office of Scientific and Technical Information (OSTI), October 1993. http://dx.doi.org/10.2172/10134365.

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Kovesdi, Casey Robert, and Jeffrey Clark Joe. Migration of Older to New Digital Control Systems in Nuclear Power Plant Main Control Rooms. Office of Scientific and Technical Information (OSTI), April 2016. http://dx.doi.org/10.2172/1371641.

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