Relevant bibliographies by topics / Annual migrations

Academic literature on the topic 'Annual migrations'

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Published: 10 December 2022
Last updated: 28 January 2023

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Journal articles on the topic "Annual migrations"

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Watts, Bryan D., Fletcher M. Smith, Chance Hines, Laura Duval, Diana J. Hamilton, Tim Keyes, Julie Paquet, et al. "The annual cycle for whimbrel populations using the Western Atlantic Flyway." PLOS ONE 16, no. 12 (December 31, 2021): e0260339. http://dx.doi.org/10.1371/journal.pone.0260339.

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Many long-distance migratory birds use habitats that are scattered across continents and confront hazards throughout the annual cycle that may be population-limiting. Identifying where and when populations spend their time is fundamental to effective management. We tracked 34 adult whimbrels (Numenius phaeopus) from two breeding populations (Mackenzie Delta and Hudson Bay) with satellite transmitters to document the structure of their annual cycles. The two populations differed in their use of migratory pathways and their seasonal schedules. Mackenzie Delta whimbrels made long (22,800 km) loop migrations with different autumn and spring routes. Hudson Bay whimbrels made shorter (17,500 km) and more direct migrations along the same route during autumn and spring. The two populations overlap on the winter grounds and within one spring staging area. Mackenzie Delta whimbrels left the breeding ground, arrived on winter grounds, left winter grounds and arrived on spring staging areas earlier compared to whimbrels from Hudson Bay. For both populations, migration speed was significantly higher during spring compared to autumn migration. Faster migration was achieved by having fewer and shorter stopovers en route. We identified five migratory staging areas including four that were used during autumn and two that were used during spring. Whimbrels tracked for multiple years had high (98%) fidelity to staging areas. We documented dozens of locations where birds stopped for short periods along nearly all migration routes. The consistent use of very few staging areas suggests that these areas are integral to the annual cycle of both populations and have high conservation value.
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Zhitin, Ruslan, and Alexey Topiliskiy. "Social and economic effects of labor migrations of the Poles in the German empire in the late XIX – early XX century." Przegląd Wschodnioeuropejski 9, no. 1 (June 1, 2018): 21–29. http://dx.doi.org/10.31648/pw.3263.

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The article focuses on the problem of labor migrations of the peasant population of Vistula Land of Russia to the German Empire at the turn of the XIX and ХХ century. The subject of the study are the causes of migration, the situation of Polish workers abroad, the specifics and main spheres of hiring workers, the social and economic effects of the movement. The urgency of the work is determined by inadequate historiographic attention to the factor of the annual retreat of tens of thousands of Poles abroad. The article uses the civilizational approach, the principle of historicism, the ideas of the French school “Annals”. The conclusions obtained by the authors of the article testify to the special significance of migrations not only for the inhabitants of the Polish province, but also for the entire German landlord economy. Migration compensated for the labor shortage in Germany’s agrarian sector, ensuring rapid growth in production in the states. The experience of migration stimulated the economic initiative of Poles, increased their standard of living, affected the size of peasant land ownership in the Vistula Land.
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Daversa, David R., Camino Monsalve-Carcaño, Luis M. Carrascal, and Jaime Bosch. "Seasonal migrations, body temperature fluctuations, and infection dynamics in adult amphibians." PeerJ 6 (May 8, 2018): e4698. http://dx.doi.org/10.7717/peerj.4698.

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Risks of parasitism vary over time, with infection prevalence often fluctuating with seasonal changes in the annual cycle. Identifying the biological mechanisms underlying seasonality in infection can enable better prediction and prevention of future infection peaks. Obtaining longitudinal data on individual infections and traits across seasons throughout the annual cycle is perhaps the most effective means of achieving this aim, yet few studies have obtained such information for wildlife. Here, we tracked spiny common toads (Bufo spinosus) within and across annual cycles to assess seasonal variation in movement, body temperatures and infection from the fungal parasite, Batrachochytrium dendrobatidis (Bd). Across annual cycles, toads did not consistently sustain infections but instead gained and lost infections from year to year. Radio-tracking showed that infected toads lose infections during post-breeding migrations, and no toads contracted infection following migration, which may be one explanation for the inter-annual variability in Bd infections. We also found pronounced seasonal variation in toad body temperatures. Body temperatures approached 0 °C during winter hibernation but remained largely within the thermal tolerance range of Bd. These findings provide direct documentation of migratory recovery (i.e., loss of infection during migration) and escape in a wild population. The body temperature reductions that we observed during hibernation warrant further consideration into the role that this period plays in seasonal Bd dynamics.
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Åkesson, Susanne, Mihaela Ilieva, Julia Karagicheva, Eldar Rakhimberdiev, Barbara Tomotani, and Barbara Helm. "Timing avian long-distance migration: from internal clock mechanisms to global flights." Philosophical Transactions of the Royal Society B: Biological Sciences 372, no. 1734 (October 9, 2017): 20160252. http://dx.doi.org/10.1098/rstb.2016.0252.

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Migratory birds regularly perform impressive long-distance flights, which are timed relative to the anticipated environmental resources at destination areas that can be several thousand kilometres away. Timely migration requires diverse strategies and adaptations that involve an intricate interplay between internal clock mechanisms and environmental conditions across the annual cycle. Here we review what challenges birds face during long migrations to keep track of time as they exploit geographically distant resources that may vary in availability and predictability, and summarize the clock mechanisms that enable them to succeed. We examine the following challenges: departing in time for spring and autumn migration, in anticipation of future environmental conditions; using clocks on the move, for example for orientation, navigation and stopover; strategies of adhering to, or adjusting, the time programme while fitting their activities into an annual cycle; and keeping pace with a world of rapidly changing environments. We then elaborate these themes by case studies representing long-distance migrating birds with different annual movement patterns and associated adaptations of their circannual programmes. We discuss the current knowledge on how endogenous migration programmes interact with external information across the annual cycle, how components of annual cycle programmes encode topography and range expansions, and how fitness may be affected when mismatches between timing and environmental conditions occur. Lastly, we outline open questions and propose future research directions. This article is part of the themed issue ‘Wild clocks: integrating chronobiology and ecology to understand timekeeping in free-living animals’.
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Boyle, W. A. "Does food abundance explain altitudinal migration in a tropical frugivorous bird?" Canadian Journal of Zoology 88, no. 2 (February 2010): 204–13. http://dx.doi.org/10.1139/z09-133.

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Many animals undergo annual migrations. These movements are well studied at proximate levels, but their fundamental causes are poorly understood. Among tropical frugivorous birds, annual migration is thought to have evolved in the context of exploiting reciprocal peaks in fruit abundance among locations and seasons, yet previous tests of this hypothesis have yielded equivocal results. In this paper, I tested whether protein and (or) fruit limitation explain both uphill and downhill migratory movements in a tropical frugivorous bird, the White-ruffed Manakin ( Corapipo altera Hellmayer, 1906). While White-ruffed Manakins likely migrate uphill to exploit peaks in fruit abundance, I found no evidence that elevational differences in fruit abundance explain the downhill portion of the migratory cycle. This result challenges long-standing ideas regarding the causes of altitudinal migration because it implies that birds seeking to maximize fruit intake should remain sedentary at higher elevations. Data are also inconsistent with the hypothesis that White-ruffed Manakins migrate (either uphill or downhill) to exploit arthropod prey. Future studies should consider how variation in weather, predators, or parasites could help explain altitudinal migrations of birds from breeding areas to nonbreeding areas.
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Linthicum, Janet, Ronald E. Jackman, Brian C. Latta, Jeannine Koshear, and Michael Smith. "ANNUAL MIGRATIONS OF BALD EAGLES TO AND FROM CALIFORNIA." Journal of Raptor Research 41, no. 2 (June 2007): 106–12. http://dx.doi.org/10.3356/0892-1016(2007)41[106:amobet]2.0.co;2.

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Gabaccia, Donna, Leslie Page Moch, Marcelo J. Borges, Franca Iacovetta, Madeline Y. Hsu, Patrick Manning, Leo Lucassen, and Dirk Hoerder. "Cultures in Contact." International Review of Social History 49, no. 3 (November 29, 2004): 475–515. http://dx.doi.org/10.1017/s0020859004001762.

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In 2002, Dirk Hoerder published his magnum opus, Cultures in Contact: World Migrations in the Second Millennium (Durham, NC, 2002). In this book, Hoerder describes and analyses, with an unusual breadth of scope, the origins, causes, and extent of human migration around the globe from the eleventh century onward to the present day, paying particular attention to the impact migrations have had in the receiving countries and the cultural interactions they have triggered. At the 28th Annual Meeting of the American Social Science History Association, organized in November 2003 in Baltimore, Dirk Hoerder's book was the winner of the Allan Sharlin Memorial Award for the best book in social science history. In this review symposium, seven migration scholars from differing national and cultural backgrounds give their comments on Hoerder's book, with a concluding response by Dirk Hoerder.
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Schaeffer, Peter V., and Mulugeta S. Kahsai. "A Theoretical Note on the Relationship between Documented and Undocumented Migration." International Journal of Population Research 2011 (August 4, 2011): 1–7. http://dx.doi.org/10.1155/2011/873967.

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Undocumented migration is a (inferior) substitute to documented migration. Hence, policies affecting documented migration also affect undocumented migration. This paper explores this relationship from a theoretical perspective. The implications of this exploration are that lax enforcement of visa rules and national borders, combined with a very long waiting line (small annual quotas) for immigrant visas, can make illegal immigration a preferred option over legal immigration or, more generally, that for policy purposes all types of migrations should be regarded as interdependent. Therefore, policies aimed solely at, say, undocumented immigration will generally be less effective than an integrated policy approach.
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Wong, JB, S. Lisovski, RT Alisauskas, W. English, MA Giroux, AL Harrison, D. Kellett, et al. "Arctic terns from circumpolar breeding colonies share common migratory routes." Marine Ecology Progress Series 671 (August 5, 2021): 191–206. http://dx.doi.org/10.3354/meps13779.

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The Arctic tern is an iconic seabird, famous for its annual migrations between the Arctic and the Antarctic. Its wide geographical range has impeded knowledge of potential population bottlenecks during its annual bi-hemispheric movements. Although Arctic terns breed in the Pacific, Atlantic, and Arctic coasts of North America, few tracking studies have been conducted on North American Arctic terns, and none in Canada, which represents a significant proportion of their circumpolar breeding range. Using light-level geolocators, we tracked 53 Arctic terns from 5 breeding colonies across a wide latitudinal and longitudinal range within North America. We compared the routes taken by birds in our study and migration timing to those previously tracked from Greenland, Iceland, The Netherlands, Sweden, Norway, Maine (USA), and S. Alaska (USA). Most Arctic terns tracked globally used one of 3 southbound migration routes: (1) Atlantic West Africa; (2) Atlantic Brazil; and (3) Pacific coastal, and one of 2 northbound migration routes: (1) Mid-ocean Atlantic and (2) Mid-ocean Pacific. Some other trans-equatorial seabirds also used these migration routes, suggesting that Arctic tern routes may be important for other species. The migration timing for southbound and northbound migrations was generally different between tracked tern colonies worldwide but generally fell within a 1-2 mo window. Our research suggests that conservation management of Arctic terns during their migration should dynamically adapt with the times of the year that terns use parts of their route. Future identification of common multi-species seabird flyways could aid the international negotiations required to conserve pelagic seabirds such as Arctic terns.
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Buehler, Deborah M., and Theunis Piersma. "Travelling on a budget: predictions and ecological evidence for bottlenecks in the annual cycle of long-distance migrants." Philosophical Transactions of the Royal Society B: Biological Sciences 363, no. 1490 (July 18, 2007): 247–66. http://dx.doi.org/10.1098/rstb.2007.2138.

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Long-distance migration, and the study of the migrants who undertake these journeys, has fascinated generations of biologists. However, many aspects of the annual cycles of these migrants remain a mystery as do many of the driving forces behind the evolution and maintenance of the migrations themselves. In this article we discuss nutritional, energetic, temporal and disease - risk bottlenecks in the annual cycle of long-distance migrants, taking a sandpiper, the red knot Calidris canutus , as a focal species. Red knots have six recognized subspecies each with different migratory routes, well-known patterns of connectivity and contrasting annual cycles. The diversity of red knot annual cycles allows us to discuss the existence and the effects of bottlenecks in a comparative framework. We examine the evidence for bottlenecks focusing on the quality of breeding plumage and the timing of moult as indicators in the six subspecies. In terms of breeding plumage coloration, quality and timing of prealternate body moult (from non-breeding into breeding plumage), the longest migrating knot subspecies, Calidris canutus rogersi and Calidris canutus rufa , show the greatest impact of bottlenecking. The same is true in terms of prebasic body moult (from breeding into non-breeding plumage) which in case of both C. c. rogersi and C. c. rufa overlaps with southward migration and may even commence in the breeding grounds. To close our discussion of bottlenecks in long-distance migrants, we make predictions about how migrants might be impacted via physiological ‘trade-offs’ throughout the annual cycle, using investment in immune function as an example. We also predict how bottlenecks may affect the distribution of mortality throughout the annual cycle. We hope that this framework will be applicable to other species and types of migrants, thus expanding the comparative database for the future evaluation of seasonal selection pressures and the evolution of annual cycles in long-distance migrants. Furthermore, we hope that this synthesis of recent advancements in the knowledge of red knot annual cycles will prove useful in the ongoing attempts to model annual cycles in migratory birds.
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Dissertations / Theses on the topic "Annual migrations"

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Heinken, Thilo. "Migration of an annual myrmecochore : a four year experiment with Melampyrum pratense L." Universität Potsdam, 2004. http://opus.kobv.de/ubp/volltexte/2005/586/.

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A seed sowing experiment was conducted in a mixed secondary woodland on acidic soils in NE Germany with Melampyrum pratense, an annual ant-dispersed forest herb which lacks a natural population in the study area, but is abundant in similar habitats. Each set of 300 seeds was sown within one square metre at three sites in 1997, and the development of the populations was recorded from 1998 onward. Additionally, seed fall patterns were studied in a natural population by means of adhesive cardboard. All trials resulted in the recruitment of populations, which survived and increased in both individual number and area, up to the year 2001. Thus, local distribution of Melampyrum pratense is dispersallimited. Total individual number increased from 105 to 3,390, and total population area from 2.07 to 109.04 m². Migration occurred in all directions. Mean migration rate was 0.91 m per year, and the highest migration rate was 6.48 m. No individual was recorded beyond 7.63 m from the centres of the sawn squares after three years, suggesting exclusive short-distance dispersal. As primary dispersal enables only distances of up to 0.25 m, ants are presumed to be the main dispersal vectors. Despite differences in individual number and colonization patterns, migration rates did not differ significantly between the populations, but were significantly higher in 2001 due to an increased population size. Colonization patterns were characterized by a rapid, negative exponential decrease of population density with increasing distance from the sown plot, suggesting a colonization by establishment of more or less isolated outposts of individuals and a subsequent gradual infill of the gaps between. My results resemble myrmecochorous dispersal distances in temperate woodlands, and migration rates and patterns across ecotones from ancient to recent deciduous forests. They may function as a colonization model of Melampyrum pratense after accidental long-distance dispersal.
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Pagel, Robert Kyle III. "Annual Cycle Demography, Habitat Associations, and Migration Ecology in Red-headed Woodpeckers (Melanerpes erythrocephalus)." University of Toledo / OhioLINK, 2019. http://rave.ohiolink.edu/etdc/view?acc_num=toledo1556880764606001.

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TERRA, FELIPE DE SOUZA. "GAS MIGRATION IN WELL ANNULAR DURING PMCD OPERATION." PONTIFÍCIA UNIVERSIDADE CATÓLICA DO RIO DE JANEIRO, 2016. http://www.maxwell.vrac.puc-rio.br/Busca_etds.php?strSecao=resultado&nrSeq=33699@1.

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PONTIFÍCIA UNIVERSIDADE CATÓLICA DO RIO DE JANEIRO
COORDENAÇÃO DE APERFEIÇOAMENTO DO PESSOAL DE ENSINO SUPERIOR
PROGRAMA DE EXCELENCIA ACADEMICA
A técnica de Perfuração com Gerenciamento de Pressão está em crescente expansão no contexto das operações marítimas. Devido à complexidade dos reservatórios e das novas fronteiras de exploração e produção de petróleo, a perfuração com Gerenciamento de Pressão se apresenta como uma forma de redução de custo e aumento da segurança operacional para um grande volume das reservas de petróleo. Em alguns casos, a tecnologia é utilizada como viabilizadora, sendo a única forma de se perfurar os poços. Neste cenário, o entendimento do comportamento de migração de gás, quando da aplicação da técnica de Pressurized Mud Cap Drilling (PMCD), permite a elaboração do projeto de poço mais econômico além de contribuir para o aumento da segurança operacional. O presente estudo tem por objetivo apresentar um modelo matemático capaz de simular o comportamento da perda de fluido de perfuração para a formação com a ocorrência de influxo simultâneo e da migração de gás para a superfície, durante a perfuração com esta técnica, com robustez. É utilizado o modelo bifásico Drift-Flux associado ao método numérico Advection Upstream Splitting Method (AUSMV) para simular o comportamento descrito anteriormente. Antes da apresentação de estudos de casos de simulação com migração de gás, os resultados de cenários mais simples são comparados com os resultados de um software comercial tido, como referência na indústria para validação do programa. Através dos casos simulados é possível verificar a robustez do modelo matemático proposto, que se mostra capaz de fornecer respostas compatíveis quanto ao comportamento esperado do gás. A análise dos resultados obtidos permite estabelecer procedimentos para o monitoramento do que ocorre no poço de forma a otimizar as operações de bullhead no cenário de PMCD.
The use of the Manage Pressure Drilling (MPD) is spreading in offshore operations. The increasing complexity in the new exploratory frontiers is demanding for new techniques to reduce costs and increase operational safety. MPD appears as an answer for that demand and sometimes it is the only viable way to drill some of the challenging wells. In that way, understanding the gas migration behavior while drilling in PMCD mode allows an optimized well design concerning cost and operational safety. The present study validates a mathematical model capable of simulating a scenario where loss of drilling fluid in the bottom of the well is present while having an influx from the same reservoir and observing gas migration to the surface in a PMCD operation. A Drift Flux Two Phase Flow Model is used in association with the Advection Upstream Splitting Method (AUSMV). Before the presentation and discussion of the complete PMCD scenario, two simple cases were simulated and the results were compared to the ones from a computer application considered as a reference to the industry, validating the proposed model. The results of the simulations can be used as a base for the elaboration of operational procedures to monitor gas behavior and optimize bullhead in PMCD scenarios.
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Chan, Cegeon J. "Annular modes in multiple migrating zonal jet regime." Thesis, Massachusetts Institute of Technology, 2006. http://hdl.handle.net/1721.1/34569.

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Thesis (S.M.)--Massachusetts Institute of Technology, Dept. of Earth, Atmospheric, and Planetary Sciences, 2006.
Includes bibliographical references (p. 85-87).
Recent studies have linked hemispheric climate variability to annular modes, zonally symmetric structures that describe the horizontal redistribution of atmospheric mass. The resulting changes in the pressure patterns consequently alter the atmospheric circulation, including the movement of zonal jets in the atmosphere. While the literature contains much observational evidence describing these annular modes, the fundamental dynamics in the perpetuation of the annular modes still remains poorly understood. We investigate the dynamics of the annular modes using the MITGCM, a semi-hemispheric ocean model. The forcings imposed in the model are an atmospheric wind stress and relaxation to a latitudinal temperature profile, which induces a baroclinically unstable flow. Despite such an idealized setup, the model output shows striking similarities to the observed atmospheric annular modes, where the leading mode of variability is associated with the primary zonal jet's meridional displacement. By convention, when the zonal jet is poleward (equatorward) of its time-mean position, the principal component (PC) of the first empirical orthogonal function (EOF) is positive (negative) and is referred to as the high (low) zonal index.
(cont.) In the model, systematic secondary (weaker) jets migrate equatorward into the primary jet. The total eddy forcing associated with the migrating jets aids in sustaining the primary jet in the presence of frictional forces. Plots of the anomalous eddy fields for both indexes show that the strongest eddy activity in the main jet is associated with the high zonal index. The zonal flow anomalies, which systematically migrate into the poleward flank of the main jet, are largely responsible for causing this positively anomalous eddy forcing. This asymmetrical forcing to the primary jet results in the zonal index variability. In this thesis, the dynamics associated with the secondary jets and its equatorward migration will be examined. We will show that when (1) the sphericity of the earth is accounted for, (2) the interior PV is homogenized, and (3) the width of the baroclinically unstable region exceeds the Rhines scale by several factors, multiple zonal jets emerge and migrate equatorward.
by Cegeon J. Chan.
S.M.
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Stein, Kristie Anne. "Filling gaps in the full annual cycle of the Black-crowned Night-Heron (Nycticorax nycticorax)." The Ohio State University, 2018. http://rave.ohiolink.edu/etdc/view?acc_num=osu1532001612265579.

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Corder, Keely. "REGULATION OF ADIPOSITY BY PEROXISOME PROLIFERATOR-ACTIVATED RECEPTORS GAMMA AND ALPHA ACROSS THE ANNUAL CYCLE OF A MIGRANT, THE GRAY CATBIRD (DUMETELLA CAROLINENSIS)." Miami University / OhioLINK, 2014. http://rave.ohiolink.edu/etdc/view?acc_num=miami1406818042.

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Willgård, Jens. "Framing Migration : A study on FRONTEX’s framing of migration during the European refugee crisis." Thesis, Stockholms universitet, Institutionen för ekonomisk historia och internationella relationer, 2019. http://urn.kb.se/resolve?urn=urn:nbn:se:su:diva-179776.

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Over the past years, a body of literature have emerged exploring FRONTEX’s work along the EU’s borders. It suggests that FRONTEX not only frame migration as a security issue, but also as a humanitarianist issue. The literature argues the framing of migration as both an issue of security and humanitarianism legitimizes FRONTEX’s operations in the Mediterranean. However, there is a lack of understanding in how FRONTEX frames migration at the Western Balkans border, one of the EU’s busiest borders and indeed the busiest during the summer of 2015, registering over a million migrants. Therefore, by investigating how FRONTEX framed migration at the Western Balkans border between the years 2014-2017, this thesis sets out to make a unique contribution to the research field, furthering the understanding of how FRONTEX as an organization frames migration. To examine FRONTEX’s framing of migration, a theoretical framework consisting of theories of framing, risk and threat construction, and humanitarianism is deployed. The concepts of framing devices and reasoning devices are used in a qualitative content analysis to identify the presence of frames in the material consisting of FRONTEX published reports and press releases. The empirical results indicate that FRONTEX frames migration in the Western Balkans as primarily a security issue through language connecting migration to risk and threat. The humanitarianist frame, mainly evoked by references to migrants’ vulnerability, appears relatively few times in contrast to the security frame.
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Minh, Hua Van. "Modélisation de la migration des fibres textiles au cours du processus de filature à anneau-curseur." Mulhouse, 1986. http://www.theses.fr/1986MULH0029.

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Alkarp, Lars Jesper. "Establishing a Culture of Migration : The Spatial, Economic, and Social Planning of Philippine-Korean Labour Migration." Thesis, Uppsala universitet, Institutionen för kulturantropologi och etnologi, 2018. http://urn.kb.se/resolve?urn=urn:nbn:se:uu:diva-343257.

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Since the second half of the 20th century the Philippines have supplied the world with migrant workers. Today, almost one tenth of the population is residing abroad. Labour migration has become an important source of revenue to both state and private actors through remittances, for the Philippines, and a source of cheap labour battling labour shortage, in the receiving countries. Today, the global labour market is a distinct and important part of what we call globalisation. This is portrayed in this thesis through the lens of Philippine-Korean labour migration. The purpose of this thesis is to illustrate the emergence of migrants as a commodity for export, the institutionalised creation of migrants, the normalisation of labour migration, and containment of migrants through legal and spatial constraints, in Manila and in Seoul. This thesis look at the ways in which labour migration, as an economic policy, is internalised and transformed into a culture of migration. I argue that the effects of a culture of migration is felt not just by the labour migrants themselves, but also by their families and by the Philippines as a whole. As such, the reliance on remittances as a source of income has transformed domestic and global infrastructures as well as norms and social behaviour. Moreover, this thesis aims to add to the discussion on migration and remittances by exploring social dimensions and consequences of the globalisation of the labour market.
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Skinner, Aaron. "Using GPS-Tracking to Fill Knowledge Gaps in the Full Annual Cycle of an Elusive Aerial Insectivore in Steep Decline." The Ohio State University, 2021. http://rave.ohiolink.edu/etdc/view?acc_num=osu1626886599137179.

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Books on the topic "Annual migrations"

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Symposium, Ontario Archaeological Society. Origins of the People of the Longhouse: Proceedings of the 21st Annual Symposium of the Ontario Archaeological Society Inc., held at Toronto, Ontario in October, 1994. North York, Ont: Ontario Archaeological Society, 1995.

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Development, Organization for Economic Co-operation and. Trends in international migration: Continuous reporting system on migration : annual report. 2nd ed. Paris: OECD Publications, 2003.

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Organisation for economic co-operation and development. International migration outlook: Continuous reporting system on migration : annual report 2008. Paris: Organisation for Economic Co-operation and Development, 2008.

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M, Graham Pamela, ed. Migrations and connections: Latin America and Europe in the Modern World : papers of the Fifty-fourth Annual Meeting of the Seminar on the Acquisition of Latin American Library Materials, Berlin, Germany, July 3-8, 2009. New Orleans, LA: SALALM Secretariat, Tulane University, Latin American Library, Howard-Tilton Memorial Library, 2012.

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Kumar, Pramod. Impact of MGNREGA on wage rate food security and rural urban migration: A consolidated report. Bangalore: Agricultural Development and Rural Transformation Centre, Institute for Social and Economic Change, 2013.

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Adán, Griego, and Tulane University. Latin American Library, eds. Crossing borders, Latin American migrations: Collections and services for/from new library users : papers of the Fifty-First Annual Meeting of the Seminar on the Acquisition of Latin American Library Materials, Santo Domingo, Dominican Republic, March 19-22, 2006. [New Orleans, La.]: SALALM Secretariat, Latin American Library, Tulane University, 2009.

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Ceballos, James R. Fish Transportation Oversight Team annual report - FY 1991: Transport operations on the Snake and Columbia Rivers. [Portland, Or.]: U.S. Dept. of Commerce, National Oceanic and Atmospheric Administration, National Marine Fisheries Service, 1992.

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L, Sonntag Iliana, ed. Intellectual migrations: Transcultural contributions of European and Latin American emigrés : papers of the Thirty-first Annual Meeting of the Seminar on the Acquisition of Latin American Library Materials, Ibero-Amerikanisches Institut, Preussischer Kulturbesitz, Berlin, Federal Republic of Germany, April 20-25, 1986. Madison, WI: SALALM Secretariat, Memorial Library, University of Wisconsin-Madison, 1987.

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Seminar on the Acquisition of Latin American Library Materials, Inc. Meeting. Intellectual migrations: Transcultural contributions of European and Latin American emigrés : papers of the Thirty-first Annual Meeting of the Seminar on the Acquisition of Latin American Library Materials, Ibero-Amerikanisches Institut, Preussischer Kulturbesitz, Berlin, Federal Republic of Germany, April 20-25, 1986. Edited by Sonntag Iliana L. Madison, WI: SALALM Secretariat, Memorial Library, University of Wisconsin-Madison, 1987.

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Shepard, Bradley B. Beaverhead National Forest Fisheries: Second annual report, covering the period January to December 1986. Dillon, Mont. (c/o Beaverhead National Forest, 610 N. Montana St., Dillon, 59725): Montana Dept. of Fish, Wildlife and Parks, 1987.

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Book chapters on the topic "Annual migrations"

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Oi, Shizuo, Yoshiteru Shose, Noboru Asano, Takehito Oshio, and Satoshi Matsumoto. "Intragastric Migration of a Ventriculoperitoneal Shunt Catheter." In Annual Review of Hydrocephalus, 92–93. Berlin, Heidelberg: Springer Berlin Heidelberg, 1990. http://dx.doi.org/10.1007/978-3-662-11152-9_63.

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Touho, Hajime, Mikio Nakauchi, Toshiaki Tazawa, Jyoji Nakagawara, and Jun Karasawa. "Intrahepatic Migration of a Peritoneal Shunt Catheter: Case report." In Annual Review of Hydrocephalus, 93–94. Berlin, Heidelberg: Springer Berlin Heidelberg, 1990. http://dx.doi.org/10.1007/978-3-662-11152-9_64.

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Jennissen, Roel, Mark Bovens, Godfried Engbersen, and Meike Bokhorst. "Introduction." In Research for Policy, 1–15. Cham: Springer International Publishing, 2022. http://dx.doi.org/10.1007/978-3-031-14224-6_1.

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AbstractThe Netherlands is a dynamic migration society. It has received more than 150,000 immigrants annually since 2010, and more than 200,000 from 2015 onwards. In fact, the immigration record was broken every year between 2006 and 2020, except in 2012. Many of these migrants leave again over time, but others stay. As a result, migration is currently the country’s main source of population growth.
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Dover, Howard F. "A Continuous Payment Customer Migration Model with Periodicity." In Proceedings of the 2008 Academy of Marketing Science (AMS) Annual Conference, 133. Cham: Springer International Publishing, 2014. http://dx.doi.org/10.1007/978-3-319-10963-3_68.

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Stoppe, C., J. Bernhagen, and S. Rex. "Macrophage Migration Inhibitory Factor in Critical Illness: Dr. Jekyll and Mr. Hyde?" In Annual Update in Intensive Care and Emergency Medicine 2013, 153–64. Berlin, Heidelberg: Springer Berlin Heidelberg, 2013. http://dx.doi.org/10.1007/978-3-642-35109-9_13.

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Ebihara, Ken-ichi, and Tomoaki Suzudo. "Molecular Dynamics Simulations of Phosphorus Migration in a Grain Boundary of α-Iron." In TMS 2020 149th Annual Meeting & Exhibition Supplemental Proceedings, 995–1002. Cham: Springer International Publishing, 2020. http://dx.doi.org/10.1007/978-3-030-36296-6_93.

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Brandenburg, Jann-Erik, Luis A. Barrales-Mora, and Dmitri A. Molodov. "Impact of Grain Boundary Character on Faceting and Migration of Low Angle Boundaries and Grain Rotation: Experiments and Simulations." In TMS 2015 144th Annual Meeting & Exhibition, 259–68. Cham: Springer International Publishing, 2015. http://dx.doi.org/10.1007/978-3-319-48127-2_33.

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Dennett, Adam. "Estimating an Annual Time Series of Global Migration Flows - An Alternative Methodology for Using Migrant Stock Data." In Global Dynamics, 125–42. Chichester, UK: John Wiley & Sons, Ltd, 2016. http://dx.doi.org/10.1002/9781118937464.ch7.

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O’Connor, Kim C., Bonnie L. Barrilleaux, Donald G. Phinney, Benjamin W. Fischer-Valuck, Katie C. Russell, and Darwin J. Prockop. "Regulating in Vitro Motility of Human Mesenchymal Stem Cells with Macrophage Migration Inhibitory Factor (MIF) and a Small-Molecule MIF Antagonist." In Proceedings of the 21st Annual Meeting of the European Society for Animal Cell Technology (ESACT), Dublin, Ireland, June 7-10, 2009, 149–60. Dordrecht: Springer Netherlands, 2011. http://dx.doi.org/10.1007/978-94-007-0884-6_26.

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Hall, Richard J., Sonia Altizer, Stephanie J. Peacock, and Allison K. Shaw. "Animal migration and infection dynamics: Recent advances and future frontiers." In Animal Behavior and Parasitism, 111–32. Oxford University PressOxford, 2022. http://dx.doi.org/10.1093/oso/9780192895561.003.0007.

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Abstract Long-distance animal migrations are spectacular, widespread, and ecologically important. Seasonal movements that allow animals to track favorable conditions over space and time can be energetically demanding and require behavioral and physiological changes over the annual cycle. Resulting changes in animal aggregation, condition, immunity, and location can often drive changes in exposure and susceptibility to parasite infection. Infection in turn can influence individual hosts’ movement behavior, and potentially impose selection pressure on the propensity and extent of movement. This chapter surveys the ecology and evolution of host–parasite interactions in migratory animals, and proposes a novel framework for understanding observed host–parasite dynamics in the context of feedbacks between migration and parasite infection at the individual host and population levels. We apply this framework to predict the consequences of global climate and habitat disruptions for host–pathogen dynamics, with a particular view towards migratory species conservation and public health. Finally, we identify three research frontiers—migration–parasitism feedbacks, the role of individual variation, and responses to global change—that represent promising future directions for advancing the integrated study of migration and parasitism.
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Conference papers on the topic "Annual migrations"

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Biedermann, Sebastian, Martin Zittel, and Stefan Katzenbeisser. "Improving security of virtual machines during live migrations." In 2013 Eleventh Annual Conference on Privacy, Security and Trust (PST). IEEE, 2013. http://dx.doi.org/10.1109/pst.2013.6596088.

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Han, B., and X. Xie. "Wavefield Injection and Reconstruction in Acoustic and Elastic Reverse Time Migrations." In EAGE 2020 Annual Conference & Exhibition Online. European Association of Geoscientists & Engineers, 2020. http://dx.doi.org/10.3997/2214-4609.202010854.

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Taylor, Larry D., Aaron O'Dea, Timothy J. Bralower, and Seth Finnegan. "BIOGEOGRAPHY IN THE ANCIENT OCEANS: INITIAL INSIGHT FROM PREHISTORIC WHALE MIGRATIONS." In GSA Annual Meeting in Indianapolis, Indiana, USA - 2018. Geological Society of America, 2018. http://dx.doi.org/10.1130/abs/2018am-324622.

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Nishiyama, Mo. "Good Migrations: Finding New Home for Support Articles, Done with Minimum Resources." In SIGUCCS '21: ACM SIGUCCS Annual Conference. New York, NY, USA: ACM, 2021. http://dx.doi.org/10.1145/3419944.3441221.

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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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Kinnunen, Juha. "Leaving the Lights On? Exploring Cloud ERP Migrations and IS Discontinuance." In 2021 IEEE 12th Annual Ubiquitous Computing, Electronics & Mobile Communication Conference (UEMCON). IEEE, 2021. http://dx.doi.org/10.1109/uemcon53757.2021.9666669.

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Kientopf, Kai, Saleem Raza, Simon Lansing, and Mesut Gunes. "Service management platform to support service migrations for IoT smart city applications." In 2017 IEEE 28th Annual International Symposium on Personal, Indoor, and Mobile Radio Communications (PIMRC). IEEE, 2017. http://dx.doi.org/10.1109/pimrc.2017.8292690.

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Kwatia, George, Mustafa Al Ramadan, Saeed Salehi, and Catalin Teodoriu. "Enhanced Cement Composition for Preventing Annular Gas Migration." In ASME 2019 38th International Conference on Ocean, Offshore and Arctic Engineering. American Society of Mechanical Engineers, 2019. http://dx.doi.org/10.1115/omae2019-95589.

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Abstract Cementing operations in deepwater exhibit many challenges worldwide due to shallow flows. Cement sheath integrity and durability play key roles in the oil and gas industry, particularly during drilling and completion stages. Cement sealability serves in maintaining the well integrity by preventing fluid migration to surface and adjacent formations. Failure of cement to seal the annulus can lead to serious dilemmas that may result in loss of well integrity. Gas migration through cemented annulus has been a major issue in the oil and gas industry for decades. Anti-gas migration additives are usually mixed with the cement slurry to combat and prevent gas migration. In fact, these additives enhance and improve the cement sealability, bonding, and serve in preventing microannuli evolution. Cement sealability can be assessed and evaluated by their ability to seal and prevent any leakage through and around the cemented annulus. Few laboratory studies have been conducted to evaluate the sealability of oil well cement. In this study, a setup was built to simulate the gas migration through and around the cement. A series of experiments were conducted on these setups to examine the cement sealability of neat Class H cement and also to evaluate the effect of anti-gas migration additives on the cement sealability. Different additives were used in this setup such as microsilica, fly ash, nanomaterials and latex. Experiments conducted in this work revealed that the cement (without anti-gas migration additive) lack the ability to seal the annulus. Cement slurries prepared with latex improved the cement sealability and mitigated gas migration for a longer time compared to the other slurries. The cement slurry formulated with a commercial additive completely prevented gas migration and proved to be a gas tight. Also, it was found that slurries with short gas transit times have a decent potential to mitigate gas migration, and this depends on the additives used to prepare the cement slurry.
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Samdani, Ganesh Arunkumar, Sai Sashankh Rao, and Vishwas Paul Gupta. "Gas Migration in Wellbores During Pressurized Mud Cap Drilling PMCD." In SPE Annual Technical Conference and Exhibition. SPE, 2021. http://dx.doi.org/10.2118/205980-ms.

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Abstract In PMCD operations, reservoir gas is expected to migrate uphole, and the uncertainty in gas migration rates under downhole conditions leads to challenges in planning logistics and fluid requirements. Estimates of migration velocities based on current methods (e.g. Taylor-bubble correlation) are highly conservative and involves simplifying assumptions. This paper presents a systematic approach to understanding the fundamentals of gas migration in wellbores, relates it to field data, and provides recommendations to improve PMCD design and planning. Our approach includes analysis of PMCD field data, multiphase flow literature and computational flow simulations. The field data on gas migration is used to establish the field-scale parametric effects and observed trends. Multiphase flow literature is used to qualitatively understand some of these parametric effects at downhole conditions. A comparison between multiphase flow literature and field data overwhelmingly demonstrates the gaps in understanding of underlying physics. 3-dimensional multiphase CFD simulations for a representative well geometry and downhole conditions are used to understand gas migration physics at downhole conditions and the reasons for its sensitivity to different conditions. CFD simulations showed a strong impact of pressure on bubble breakup. As a result, the gas migrates as a slow-moving swarm of smaller bubbles. The formation of smaller bubbles from a given gas volume is a rate dependent process and requires a finite time to reach to an equilibrium/steady-state. The field conditions provide both high downhole pressure and sufficient length-scale for formation of smaller slow-moving bubbles. For the same reason, small scale-experiments are limited in their application for field-scale designs due to use of low pressure and/or insufficient length-scales. The CFD results also compare well with field data in showing ~30% holdup of migrating gas at low migration rates and negligible effect of rotation and wellbore geometry i.e. annulus vs openhole. The extent and rate of disintegration of gas volume (bubble) has a negative correlation with well inclination, liquid viscosity, and surface tension. The rheology and liquid viscosity also affect the ability of liquid to sweep the gas back into the reservoir and therefore it is expected to have an optimum range for a given PMCD application. Use of high viscosity fluids for typical downhole well conditions is counterproductive and results in higher gas migration rates and therefore not recommended. The understanding of downhole physics is expected to improve logistics/storage/ planning/fluid choice and lead to lower gas migration rates and reliable operation. The same approach can be applied to other operations and scenarios where gas migration velocities are a key design factor.
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Panda, Rajendran, Abhijit Dharchoudhury, Tim Edwards, Joe Norton, and David Blaauw. "Migration." In the 35th annual conference. New York, New York, USA: ACM Press, 1998. http://dx.doi.org/10.1145/277044.277150.

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Reports on the topic "Annual migrations"

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Achord, Stephen, Daniel J. Kamikawa, and Benjamin P. Sandford. Monitoring the Migrations of Wild Snake River Spring/Summer Chinook Salmon Smolts, 1993 Annual Report. Office of Scientific and Technical Information (OSTI), January 1995. http://dx.doi.org/10.2172/900810.

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Achord, Stephen. Monitoring the Migrations of Wild Snake River Spring/Summer Chinook Salmon Smolts, 2000 Annual Report. Office of Scientific and Technical Information (OSTI), August 2001. http://dx.doi.org/10.2172/790122.

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Achord, Stephen. Monitoring the Migrations of Wild Snake River Spring/Summer Chinook Salmon Smolts, 1999 Annual Report. Office of Scientific and Technical Information (OSTI), June 2001. http://dx.doi.org/10.2172/790125.

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Achord, Stephen, Gene M. Matthews, and Daniel J. Kamikawa. Monitoring the Migrations of Wild Snake River Spring/Summer Chinook Salmon Smolts, 1994 Annual Report. Office of Scientific and Technical Information (OSTI), September 1995. http://dx.doi.org/10.2172/161493.

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Achord, Stephen, Eric E. Hockersmith, and Gordon A. Axel. Monitoring the Migrations of Wild Snake River Spring/Summer Chinook Salmon Smolts, 1998 Annual Report. Office of Scientific and Technical Information (OSTI), December 2000. http://dx.doi.org/10.2172/776809.

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Achord, Stephen, M. Brad Eppard, and Eric E. Hockersmith. Monitoring the Migrations of Wild Snake River Spring/Summer Chinook Salmon Smolts, 1997 Annual Report. Office of Scientific and Technical Information (OSTI), May 1998. http://dx.doi.org/10.2172/780416.

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Achord, Stephen, Benjamin P. Sandford, and Eric E. Hockersmith. Monitoring the Migrations of Wild Snake River Spring/Summer Chinook Salmon Smolts, 1996 Annual Report. Office of Scientific and Technical Information (OSTI), July 1997. http://dx.doi.org/10.2172/544743.

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Achrod, Stephen, Benjamin P. Sandford, and Eric E. Hockersmith. Monitoring the Migrations of Wild Snake River Spring/Summer Chinook Salmon Juveniles, 2004-2005 Annual Report. Office of Scientific and Technical Information (OSTI), May 2006. http://dx.doi.org/10.2172/900811.

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Achord, Stephen, Jacob M. Hodge, and Benjamin P. Sandford. Monitoring the Migrations of Wild Snake River Spring/Summer Chinook Salmon Juveniles, 2003-2004 Annual Report. Office of Scientific and Technical Information (OSTI), June 2005. http://dx.doi.org/10.2172/885223.

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Achord, Stephen, Gordon A. Axel, and Eric E. Hockersmith. Monitoring the Migrations of Wild Snake River Spring/Summer Chinook Salmon Smolts, 2000-2001 Annual Report. Office of Scientific and Technical Information (OSTI), July 2002. http://dx.doi.org/10.2172/811389.

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