Academic literature on the topic 'Migratory journey'
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Journal articles on the topic "Migratory journey"
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Howard, Christine, Philip A. Stephens, Joseph A. Tobias, Catherine Sheard, Stuart H. M. Butchart, and Stephen G. Willis. "Flight range, fuel load and the impact of climate change on the journeys of migrant birds." Proceedings of the Royal Society B: Biological Sciences 285, no. 1873 (2018): 20172329. http://dx.doi.org/10.1098/rspb.2017.2329.
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Climate change is predicted to increase migration distances for many migratory species, but the physiological and temporal implications of longer migratory journeys have not been explored. Here, we combine information about species' flight range potential and migratory refuelling requirements to simulate the number of stopovers required and the duration of current migratory journeys for 77 bird species breeding in Europe. Using tracking data, we show that our estimates accord with recorded journey times and stopovers for most species. We then combine projections of altered migratory distances under climate change with models of avian flight to predict future migratory journeys. We find that 37% of migratory journeys undertaken by long-distance migrants will necessitate an additional stopover in future. These greater distances and the increased number of stops will substantially increase overall journey durations of many long-distance migratory species, a factor not currently considered in climate impact studies.
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Best-Cummings, Christiana, and Margery A. Gildner. "Caribbean Women's Migratory Journey." Journal of Immigrant & Refugee Services 2, no. 3-4 (2004): 83–101. http://dx.doi.org/10.1300/j191v02n03_06.
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Diaz, Joseph O. Prewitt. "The Migratory Journey of Unaccompanied Children." Journal of Psychology & Behavior Research 3, no. 2 (2021): p21. http://dx.doi.org/10.22158/jpbr.v3n2p21.
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This article provides a brief discussion on the psychosocial needs of unaccompanied minors crossing the southern border of the United States. It highlights various aspects of migration, and the resulting emotional and psychological impact on unaccompanied minors; it subsequently proposes a resilience approach, in terms of protective behaviors towards increased adjustment and success in a new environment.
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Hayes, Matthew A., Anne E. Lacy, Jeb Barzen, Sara E. Zimorski, Kristin A. L. Hall, and Koji Suzuki. "An Unusual Journey of Non-migratory Whooping Cranes." Southeastern Naturalist 6, no. 3 (2007): 551–58. http://dx.doi.org/10.1656/1528-7092(2007)6[551:aujonw]2.0.co;2.
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Nourani, Elham, Noriyuki M. Yamaguchi, and Hiroyoshi Higuchi. "Climate change alters the optimal wind-dependent flight routes of an avian migrant." Proceedings of the Royal Society B: Biological Sciences 284, no. 1854 (2017): 20170149. http://dx.doi.org/10.1098/rspb.2017.0149.
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Migratory birds can be adversely affected by climate change as they encounter its geographically uneven impacts in various stages of their life cycle. While a wealth of research is devoted to the impacts of climate change on distribution range and phenology of migratory birds, the indirect effects of climate change on optimal migratory routes and flyways, through changes in air movements, are poorly understood. Here, we predict the influence of climate change on the migratory route of a long-distant migrant using an ensemble of correlative modelling approaches, and present and future atmospheric data obtained from a regional climate model. We show that changes in wind conditions by mid-century will result in a slight shift and reduction in the suitable areas for migration of the study species, the Oriental honey-buzzard, over a critical section of its autumn journey, followed by a complete loss of this section of the traditional route by late century. Our results highlight the need for investigating the consequences of climate change-induced disturbance in wind support for long-distance migratory birds, particularly species that depend on the wind to cross ecological barriers, and those that will be exposed to longer journeys due to future range shifts.
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Toledo, Pamela, Audrey M. Darnaude, Edwin J. Niklitschek, et al. "Partial migration and early size of southern hake Merluccius australis: a journey between estuarine and oceanic habitats off Northwest Patagonia." ICES Journal of Marine Science 76, no. 4 (2018): 1094–106. http://dx.doi.org/10.1093/icesjms/fsy170.
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Abstract Partial migration is a key adaptive strategy, increasingly observed across multiple taxa. To investigate partial migration and life-cycle diversity of Merluccius australis in northwestern Patagonia, we analysed isotopic (δ13C, δ18O) and elemental (11B, 23Na, 24 Mg, 55Mn, 86Sr, 138Ba) compositions of otoliths from juveniles, sub-adults, and adults to identify nursery origins, habitats used, and migratory behaviours of multiple cohorts (1990–2005). Influence of early size upon migration was assessed by comparing back-calculated sizes at demersal recruitment between resident and migratory adults. Although partial migration occurred at both estuarine and oceanic nursery habitats, migratory behaviour was more frequent in fish of estuarine origin (59%) than in fish of oceanic origin (17%). Adults of estuarine origin dominated both estuarine (92%) and oceanic (77%) sampling areas. Although we found no significant differences in size at demersal recruitment between oceanic-resident and oceanic-migratory fish, a strong relationship between size at demersal recruitment and migratory behaviour appeared in fish of estuarine origin, whose probability of migration increased from 5% to 95% as demersal recruitment size increased from 18.8 to 23.6 cm. Further research on M. australis life cycle is required to incorporate sub-population processes into the stock assessment and management models being used for this overexploited species.
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Nguyen, Tu Anh Thi, M. Jerome Beetz, Christine Merlin, and Basil el Jundi. "Sun compass neurons are tuned to migratory orientation in monarch butterflies." Proceedings of the Royal Society B: Biological Sciences 288, no. 1945 (2021): 20202988. http://dx.doi.org/10.1098/rspb.2020.2988.
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Every autumn, monarch butterflies migrate from North America to their overwintering sites in Central Mexico. To maintain their southward direction, these butterflies rely on celestial cues as orientation references. The position of the sun combined with additional skylight cues are integrated in the central complex, a region in the butterfly's brain that acts as an internal compass. However, the central complex does not solely guide the butterflies on their migration but also helps monarchs in their non-migratory form manoeuvre on foraging trips through their habitat. By comparing the activity of input neurons of the central complex between migratory and non-migratory butterflies, we investigated how a different lifestyle affects the coding of orientation information in the brain. During recording, we presented the animals with different simulated celestial cues and found that the encoding of the sun was narrower in migratory compared to non-migratory butterflies. This feature might reflect the need of the migratory monarchs to rely on a precise sun compass to keep their direction during their journey. Taken together, our study sheds light on the neural coding of celestial cues and provides insights into how a compass is adapted in migratory animals to successfully steer them to their destination.
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Ponce-Blandón, José Antonio, Rocío Romero-Castillo, Nerea Jiménez-Picón, Juan Carlos Palomo-Lara, Aurora Castro-Méndez, and Manuel Pabón-Carrasco. "Lived Experiences of African Migrants Crossing the Strait of Gibraltar to Europe: A Cross-Cultural Approach to Healthcare from a Qualitative Methodology." International Journal of Environmental Research and Public Health 18, no. 17 (2021): 9379. http://dx.doi.org/10.3390/ijerph18179379.
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Background: The migratory flow from the African continent to Europe is intense and the European countries should apply a humanitarian, health and social response to this emerging problem. Migrants coming from Africa to Europe are a very vulnerable population. Healthcare professionals should be prepared for answering their needs from a transcultural approach, which requires a better understanding of this phenomenon. Thus, the aim of this study was to improve nursing and healthcare professionals’ awareness and better understanding of migrant life experiences during the migration journey. An exploratory descriptive qualitative research was conducted. In-depth interviews were conducted involving four key informants and content analysis were performed with the transcriptions. Results: Three themes merged: life situations in their countries of origin; motivations that led them to undertake the migratory journey; and experiences they lived during the migratory journey. The results described the dramatic experience and motivations for crossing the strait of Gibraltar from Africa to Europe, including feelings, fears, hopes and lived experiences. The determination of immigrants to fight for a better life opportunity and the physical damage and psychological consequences they suffer were revealed. Conclusions: This study would help healthcare professionals to better understand this complex reality and deliver culturally adapted care. Knowledge of the starting reality of these populations can help health professionals to incorporate a cross-cultural approach that improves the relational, ethical and affective competences to provide quality care to the migrant population, as well as the development of health measures to fight against inequalities suffered by these population groups.
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Kullberg, Cecilia, Ian Henshaw, Sven Jakobsson, Patrik Johansson, and Thord Fransson. "Fuelling decisions in migratory birds: geomagnetic cues override the seasonal effect." Proceedings of the Royal Society B: Biological Sciences 274, no. 1622 (2007): 2145–51. http://dx.doi.org/10.1098/rspb.2007.0554.
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Recent evaluations of both temporal and spatial precision in bird migration have called for external cues in addition to the inherited programme defining the migratory journey in terms of direction, distance and fuelling behaviour along the route. We used juvenile European robins ( Erithacus rubecula ) to study whether geomagnetic cues affect fuel deposition in a medium-distance migrant by simulating a migratory journey from southeast Sweden to the wintering area in southern Spain. In the late phase of the onset of autumn migration, robins exposed to the magnetic treatment attained a lower fuel load than control birds exposed to the ambient magnetic field of southeast Sweden. In contrast, robins captured in the early phase of the onset of autumn migration all showed low fuel deposition irrespective of experimental treatment. These results are, as expected, the inverse of what we have found in similar studies in a long-distance migrant, the thrush nightingale ( Luscinia luscinia ), indicating that the reaction in terms of fuelling behaviour to a simulated southward migration varies depending on the relevance for the species. Furthermore, we suggest that information from the geomagnetic field act as an important external cue overriding the seasonal effect on fuelling behaviour in migratory birds.
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González, Betsabé Román, Eduardo Carrillo Cantú, and Rubén Hernández-León. "Moving to the ‘Homeland’." Mexican Studies/Estudios Mexicanos 32, no. 2 (2016): 252–75. http://dx.doi.org/10.1525/mex.2016.32.2.252.
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A growing number of minors have become part of the return migratory flow from the United States to Mexico. Based on a longitudinal study started in 2012, this article uses life-history narratives to analyze the return experiences of three children who arrived in the state of Morelos, Mexico, between 2010 and 2012. The findings presented here focus on a specific segment of the children’s migratory journey: leaving the United States, crossing the border and arriving in Morelos. The article contributes to the scholarship on children’s narratives of migration, which has been under-emphasized in traditional studies of United States-Mexico migration. Un número creciente de menores de edad forma parte del flujo migratorio de retorno de Estados Unidos a México. Con base en un estudio longitudinal iniciado en el 2012, este artículo hace uso de las historias de vida para analizar las experiencias de retorno de tres niños que llegaron al estado de Morelos, México, entre el 2010 y el 2012. Los resultados que se presentan están centrados en un segmento específico del recorrido migratorio de estos niños: partir de los Estados Unidos, cruzar la frontera y llegar a Morelos. Este artículo contribuye a los estudios migratorios centrados en la narrativa de los niños, la cual ha sido poco valorada en los estudios de migración entre Estados Unidos y México.
Dissertations / Theses on the topic "Migratory journey"
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Pita, Alva Cecilia. "Représentation filmique de la frontière et du voyage migratoire : Trois exemples du cinéma contemporain." Thesis, Perpignan, 2016. http://www.theses.fr/2016PERP0017/document.
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La frontière nord du Mexique est une sorte d’aimant qui attire d’immenses migrations humaines. Bien que cette «arrière-mur » entre les deux pays soit l’une des plus longues, dangereuses et traversées du monde, elle est aussi l’une des plus « poreuses » et de plus filmées. La problématique de cette recherche se pose sur la façon dont la frontièreentre le Mexique et les États-Unis est construite, filmiquement parlant, dans un corpus précis de films. Les travaux proposés sont : Los que se quedan (Juan C. Rulfo et Carlos Hargerman, 2008), Norteado (Rigoberto Pérezcano, 2009),également la production étasunienne, A better life (Christian Weitz, 2011). Ma recherche se fonde sur l’hypothèse selon laquelle la trilogie représente la frontière en trois étapes ou facettes de la frontière. D’un point de vue physique ougéographique, dans Los que se quedan la frontière est bien lointaine, elle est vue depuis le Sud. En revanche, dans Norteado la frontière commence à « s’approcher», jusqu'à sa traversée. Tandis que, dans A better life, la frontière estvue depuis le Nord. Le spectateur « construira » la frontière à travers un voyage migratoire, en trois degrés, trois faces et trois films. La focalisation de Los que se quedan se centre sur les témoins plutôt que sur la frontière comme espace. Norteado, se focalise sur deux aspects : la frontière comme un espace ressenti par le personnage en transit. A better life met l’accent sur les ressentiments du protagoniste face à la frontière<br>The border between Mexico and the United States is known for being one of the largest, busiest and most dangerous in the world. This "barrier-wall" is not only one of the most extensive, dangerous and crossed in the world, but it is also one of the most "porous" and the most filmed. This doctoral thesis focuses on the representation of that real and imaginary border in cinema. The purpose is to study what elements are used, which ones are reoccurring and how they are related in a corpus of three films whose constants are: the trip, the wait and the failure or success of crossing the border. The corpus is framed in Those Who Remind (Los que se quedan, Juan Rulfo y Carlos C. Hargerman, 2008), Norteado (Rigoberto Pérezcano, 2009), and A Better Life (Christian Weitz, 2011). Together these movies make a kind of a circle where the border, the journey and the crossing are rewritten. Our research is founded on the hypothesis that the trilogy represents the frontier in three stages or facets. From a physical or geographical point of view, in Los que se quedan, the border is perceived as a faraway place, it is seen from the “South”. In Norteado, the border gets closer until the immigrant crosses it. Meanwhile, in A better Lifethe borderline is situated far from the geographical line: In the “North”. The trilogy shows the movement of the border through the immigrant figure, in a trip which is performed in three moments. The spectator “constructs” the border through a migratory journey in three degrees, three faces and in three films. The concentration of Los que se quedan is on the characters rather than on the frontier as a space. Norteado focuses on two aspects: the border as a geographical place and what the character feels in transit. A better Life emphasizes on how the characters feel in front of the border
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Safouane, Hamza. "Governing Migrants in the European Union: A Critical Approach to Interrogating Migrants' Journey Narratives." Diss., Virginia Tech, 2018. http://hdl.handle.net/10919/93594.
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Is it possible to conceive of migrants as active stakeholders of migration and asylum policies rather than passive objects of political and humanitarian intervention? In the public discourse on migration, migrants' voices are largely ignored and their political future in the reception country is often that of ascribed muteness and disenfranchisement. Yet, migrants have a voice, a history, a context, and therefore, potential aspirations to a political existence.
In this dissertation, I propose an empirical study of the migratory journeys that occurred during what has been known as "the summer of migration," which described the incoming of migrants via the Aegean Sea and through the Western Balkans to Germany and the rest of Northern Europe. Based on field observations in initial reception centers for asylum seekers in Hamburg and semi-structured interviews with fifteen participants from Syria, Iraq and Afghanistan who came to Germany between 2015 and 2016, this dissertation proposes an analytical framework that provides a critical approach to the migration management regime and migrants migratory journey narratives. The claim of this dissertation is double. First it argues that it is analytically necessary to systematize the production of immanent knowledge about migrants' journeys through their own subjectivities. Such a perspective enables a deeper understanding of the impact of human mobility on state sovereignty, borderscapes and the workings of the migration management regime. Second, it is equally necessary to politically contribute to the normalization of integrating migrants' voices in the public debate and discourse to address oppressive practices of migration management and control.<br>Ph. D.
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Morin, Jeanne. "Le journal migratoire d’Anaïs Nin (1919-1920) : lecture schizoanalytique." Thèse, Université de Sherbrooke, 1989. http://hdl.handle.net/11143/10091.
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Cette thèse comporte une analyse expérimentale du journal intime d'une adolescente, au cours de laquelle l'usage de la schizoanalyse décuple celui d'une intertextualité à partir de Blanchot, de Barthes, de Gary, de Cixous et même de Colette. Les littérateurs et les critiques ont longtemps boudé ce genre littéraire, le jugeant mineur et sans intérêt. Désormais, on publie les journaux des écrivaines et des écrivains célébrés, ou en voie de le devenir. Celui qu'Anaïs Nin rédige au cours de son adolescence amorce la «production d'une pensée à venir», un vrai théâtre des métamorphoses. Il comporte maintes traversées. C'est ce phénomène de l'adolescence et celui de toutes les dérives d'un journal intime que nous présentons, comme si nous nous trouvions, nous aussi, en plein milieu d'un océan illisible, là où il incombe de machiner le voilier, le vent, les vagues, le mât pour établir les particularités niniennes qui franchissent parfois les frontières du non-dit.
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Lagarde, David. "Sur les routes de l'exil syrien : récits de vie et parcours migratoires des réfugiés de Deir Mqaren." Thesis, Toulouse 2, 2018. http://www.theses.fr/2018TOU20034/document.
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En adoptant une approche qualitative et pluridisciplinaire, basée sur l’étude longitudinale des circulations de la population de Deir Mqaren - un village syrien situé entre Damas et la frontière libanaise - cette thèse interroge la dimension réticulaire des mobilités humaines. A travers les récits de vie des réfugiés de cette bourgade et l’analyse de leurs parcours migratoires vers la Jordanie et l’Allemagne, elle décrypte la mécanique des flux au départ de Syrie. Cette recherche invite ainsi le lecteur à déplacer son regard vers des réseaux de lieux et d’acteurs souvent considérés comme marginaux, mais formant pourtant l’ossature des routes de l’exil reliant la Syrie au reste du globe. En plaçant la focale sur les conditions du mouvement des individus, l’intention de cette étude est à la fois de mettre en exergue les imbrications entre les migrations économiques antérieures au conflit et la logique des mouvements actuels de réfugiés ; mais aussi de montrer de manière tangible l’évolution des mécanismes relationnels permettant aux exilés d’accéder à des ressources (informations, mobilité, logement, emploi) en dépit des contraintes structurelles auxquelles ils ne cessent d’être confrontés. Les représentations (carto)graphiques élaborées dans le cadre de cette thèse visent pour leur part à mieux rendre compte du caractère mobile, instable et particulièrement labile de ces dynamiques socio-spatiales<br>In adopting a qualitative and multidisciplinary approach, based on the longitudinal study of the Deir Mqaren’s inhabitants’ circulations – a Syrian village located between Damascus and the Lebanese border – this thesis questions the “reticular” dimension of human mobility. Through refugees’ narratives and the analysis of their migration journeys to Jordan and Germany, its aims to understand the mechanics of refugee flows from Syria. Thus, this research invites the reader to move his focus towards networks of places and actors often considered as being marginal, despite the fact that they form the “backbone” of the roads of exile liking Syria to the rest of the world. By placing the focal point on individuals’ conditions of movement, the intention of this study is to both highlight the continuum existing between pre-conflict economic migration and the logic of the current refugee movements; and show in a tangible way the evolution of the relational mechanisms allowing exiles to access resources (such as information, mobility, housing, employment) despite the structural constraints they are constantly facing on their way towards safe destinations. The graphic representations developed in the framework of this thesis aim to better reflect the mobile, unstable and particularly labile nature of these socio-spatial dynamics
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Dujmovic, Morgane. "Une géographie sociale critique du contrôle migratoire en Croatie : ancrages et mirages d'un dispositif." Thesis, Aix-Marseille, 2019. http://www.theses.fr/2019AIXM0646.
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Cette thèse explore les dimensions contemporaines du dispositif spatial de contrôle migratoire en Croatie. Elle retrace la genèse d’un ensemble de camps destiné à des personnes en migration, installés voire financés dans le cadre de l’adhésion à l’Union européenne. Le regard géographique scrute ce dispositif des années 2000 jusqu’à la période qualifiée de « crise » migratoire (2015-2016) pour en révéler les formes, les fonctions et les dynamiques. À l’échelle fine des individus, l’analyse s’intéresse aux effets de ce mode de gestion de l’altérité depuis les sociétés locales. Dans cette optique, le projet cartographique s’attarde sur des trajectoires migratoires sensibles et incarnées. Ancrées dans une géographie sociale holiste, les conclusions de cette recherche fondée sur le cas croate questionnent les approches restrictives des politiques d’immigration et d’asile en Europe<br>This dissertation explores contemporary dimensions of the migratory control dispositif in Croatia. The research outlines how camps designed for people in migration were implemented through European union pre-adhesion incentives or funding. Through a geographical approach, the dispositif is analysed from the 2000s to the time period of the so called migratory "crisis" (2015-2016), in order to scrutinize its forms, fonctions and dynamics. At the individual level, the analysis questions the effects of this way of dealing with otherness in local societies. To this end, the cartographic project pays attention to the personal migratory journeys. Based on a social ant holistic geography and on the Croatian case-study, the conclusions of the research interrogate restrictive immigration and asylum policies in Europe
Books on the topic "Migratory journey"
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Noble, Christina. Over the high passes: A year in the Himalayas with the migratory Gaddi Shepherds. Collins, 1987.
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Over the high passes: A year in the Himalayes with the migratory Gaddi Shepherds. Fontana, 1988.
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Garlock, Alesia, and Alesia Garlock. For Love of Birds: Journey of the Migratory Birds. Aves Artwork by Alesia, 2019.
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The narrow edge: A tiny bird, an ancient crab, & an epic journey. Yale University Press, 2015.
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Cramer, Deborah. Narrow Edge: A Tiny Bird, an Ancient Crab, and an Epic Journey. Yale University Press, 2015.
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Narrow Edge: A Tiny Bird, an Ancient Crab, and an Epic Journey. Yale University Press, 2016.
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Stock, Inka. Time, Migration and Forced Immobility. Policy Press, 2019. http://dx.doi.org/10.1332/policypress/9781529201970.001.0001.
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This book is concerned with the effects of European migration policy on migrants in the Global South. In particular, it uncovers how border enforcement policies and the crackdown on irregular migration affect the life of migrants in so called ‘transit’ countries outside the European Union. The material for this study is based on ethnographic research in Morocco with migrants from Sub-Saharan Africa. The book is mainly concerned with the human and social effects of immobility during the migratory journey. It describes how migration policies in and outside Morocco contribute to a situation where migrants get stuck in Morocco for years, and in the process become increasingly marginalized from participation in society. These prolonged periods of forced immobility negatively affect migrants’ life course, as well as their relation to the present, past and future. This alters their feelings of identity, their social relations to friends and relatives, and their aspirations for the future. The immense human suffering this situation implies has a tendency to further reinforce their wish to leave the country, rather than encouraging them to abandon their migratory projects. The book links these empirical insights on immobility to social theories of time. It argues that the fragmentation of migration processes and immobilization of migrants has an impact on migrants’ view of their own lives as ‘out of sync’ with modernity. Thinking about migration and immobility in relation to time offers a different perspective on migration processes which have until now mostly been theorized through reference to concepts of space.
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Songbird Journeys: Four Seasons in the Lives of Migratory Birds. Walker & Company, 2006.
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Songbird Journeys: Four Seasons In the Lives of Migratory Birds. Walker & Company, 2007.
Find full textBook chapters on the topic "Migratory journey"
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Hargreaves, Alec G., and Mark McKinney. "Afterword A Long Road To Travel." In Post-Migratory Cultures in Postcolonial France. Liverpool University Press, 2018. http://dx.doi.org/10.3828/liverpool/9781786941138.003.0015.
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In assessing the extent to which creative works by post-migratory artists are shaped by the legacy of the colonial era in present-day France, we delineate a spectrum stretching between two poles – on the one hand, postcolonial entrenchment, and on the other, post/colonial detachment – between which lie a range of more nuanced and multi-polar positions. Politically hard-edged rappers typify the more entrenched end of the spectrum, positioning themselves in conflict with the state and appealing to audiences in which post-colonial minorities are to the fore. More consensual positions, suggesting that France is moving or has moved beyond the polarized divisions of the colonial era, tend to characterize the work of artists such as professional dancers benefiting from public funding and others, such as the filmmaker and actor Dany Boon, whose minority ethnic origins have been largely effaced in productions that have achieved high-profile box office successes among broadly based audiences. The works of many other post-migratory artists are positioned between and in some respects disjunct from these poles, tracing multi-polar trajectories in which Anglophone spaces often displace the binary logic of (post-)colonialism. At the same, many of these artists complain that, no matter how hard they may try to leave behind divisions inherited from the colonial past, they remain in many ways framed by them in majority ethnic eyes, suggesting that a long journey still lies ahead on the road from a neo-colonial to a post/colonial France.
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Dingle, Hugh. "Patterns in migratory journeys." In Migration. Oxford University Press, 2014. http://dx.doi.org/10.1093/acprof:oso/9780199640386.003.0003.
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"6. Long Migratory Journeys." In Long Hops. University of Hawaii Press, 2017. http://dx.doi.org/10.1515/9780824857981-009.
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"Multispecies and Watershed Approaches to Freshwater Fish Conservation." In Multispecies and Watershed Approaches to Freshwater Fish Conservation, edited by Kevin B. Mayes, Gene R. Wilde, Monica E. McGarrity, Brad D. Wolaver, and Todd G. Caldwell. American Fisheries Society, 2019. http://dx.doi.org/10.47886/9781934874578.ch14.
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<em>Abstract</em>.—The Brazos River crosses eight ecoregions on its journey from New Mexico through the heart of Texas to the Gulf of Mexico. This diverse stream ecosystem supports at least 85 fish species, many of which—including two endangered, migratory, pelagic broadcast-spawning cyprinids, Smalleye Shiner <em>Notropis buccula </em>and Sharpnose Shiner <em>N. oxyrhynchus</em>—have life histories that track the natural flow regime. These two shiners were listed as endangered in part because of severe range reductions that left each with one viable population in the upper Brazos River. Given their short life span, a single adverse event, such as a persistent drought of two consecutive years, could lead to extinction. This concern was nearly realized in 2011 when a record drought and heatwave resulted in complete reproductive failure of these species, which led to rescue efforts for imperiled shiners confined to drying pools. Seventeen major reservoirs control streamflow and create distinct, disconnected fragments in the Brazos River basin. Long-term ecological studies have provided a strong science foundation for guiding water and environmental flow management and watershed conservation. Implementation of both upland and riparian best management practices in the upper Brazos River watershed, including management of invasive saltcedar <em>Tamarix </em>spp., seeks to improve habitat for fish and wildlife. Hydrological monitoring and modeling is being conducted to evaluate the potential for saltcedar control to improve base flows. Identification of stream reaches most threatened by drying and where aquifer pumping may reduce groundwater inflows to streams is the focus of ongoing research on groundwater–surface water relationships. Fish passage barriers hinder successful recruitment, migration, and recolonization of prairie fishes. Removal and mitigation of barriers, as appropriate, will be critical to restoring ecological functions and connectivity required for migratory fishes. Research on propagation and repatriation of prairie fishes is needed to inform conservation and recovery efforts. A watershed-scale, multidisciplinary approach coordinated across borders and among entities is critical to ensure conservation efforts result in the persistence of native fishes in the Great Plains, including the Brazos River.
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J. Cantres-Fonseca, Onix, and Francisco Del Olmo-Arroyo. "Genealogy of Resistant Tuberculosis in Latin America and the Caribbean until 2020." In Molecular Epidemiology Study of Mycobacterium Tuberculosis Complex. IntechOpen, 2021. http://dx.doi.org/10.5772/intechopen.96280.
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History hallmarks different out brakes events during the last century. Being caught in the in the middle of the catastrophic COVID-19 pandemic, that initiated in 2019 makes possible to forget other causalities. Tuberculosis makes the case. The pathogen has been present more than hundredth years. Relevance rest in worldwide prevalence, pathogen spread, treatment resistance and the need for eradication. Drug treatment resistance is considered as one of the criteria to prioritize a country in the World Health Organization’s intention to eradicate tuberculosis infection in the world. For decades in Latin America, including the Caribbean, there have been a persistent high rate of drug resistance with an overall prevalence to one or more drug rounds 13.0%. Approximately 30% of previously treated cases have a multidrug resistance. In this chapter, we intend to review the epidemiology of resistant tuberculosis, and the causes of resistance associated to the community of people in the Latin American and the Caribbean. We intend to describe the genetic response of Mycobacterium tuberculosis from its migratory journey throughout decades from areas of Europa and Asia to Latin America, its genetic transformation secondary to inadequate drug exposure and the characteristics of the infected host, and how a change in the healthcare system and tuberculosis control strategies access are needed to change the surge of multidrug resistance tuberculosis.
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Kushner, Tony. "Conclusion." In Journeys from the Abyss. Liverpool University Press, 2018. http://dx.doi.org/10.5949/liverpool/9781786940629.003.0006.
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The conclusion to this study explores whether it is appropriate to compare Holocaust refugee journeys with other forced migrations before and after. It explores questions of choice/absence of choice in the migratory experience. Finally it raises questions of ethics in responses to migrants from those receiving them or refusing to do so.
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"Lessons for Life: Two Migratory Portraits from Eritrea." In Long Journeys. African Migrants on the Road. BRILL, 2013. http://dx.doi.org/10.1163/9789004250390_011.
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Stock, Inka. "Travelling Adventures: Migration as an Existential Quest." In Time, Migration and Forced Immobility. Policy Press, 2019. http://dx.doi.org/10.1332/policypress/9781529201970.003.0003.
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This chapter focuses on migrants’ journeys from their countries of origin to Morocco. The text analyses how phases of mobility and immobility are interdependent parts of the complex migration trajectories of my migrant research subjects. It explores the variety of obstacles that migrants encounter during travel towards Morocco, and the ways in which they continue to negotiate their social locations with respect to mobility along the way. By reviewing the variety of regulatory authorities (market, state and family) that structure their movement, I will show how aspirations and capabilities to migrate are produced and reproduced not only at the point of departure, but also along the way. Thus, rather than transiting through different places, the data shows how migrants’ journeys are best described as “fractured stays” in various places. These stays and the ways in which people travel do not leave them unchanged. Instead, it has a profound impact on themselves and their future migratory project. The migratory experience becomes a way of life which influences every other aspect of their identit
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Hedenström, Anders, and Åke Lindström. "Migration and flight strategies in animals: new insights from tracking migratory journeys." In Animal Movement Across Scales. Oxford University Press, 2014. http://dx.doi.org/10.1093/acprof:oso/9780199677184.003.0005.
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Jo, Ji-Yeon O. "Contouring Social Spaces." In Homing. University of Hawai'i Press, 2017. http://dx.doi.org/10.21313/hawaii/9780824867751.003.0005.
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I take up fundamental questions regarding later-generation diaspora Koreans and their migration to South Korea. Who are the later-generation diasporas who embark on migratory journeys to South Korea? Why do they migrate to South Korea? What has influenced their sense of South Korean society and of belonging to “imagined homeland”? I explore the divergent homing trajectories taken by Korean Chinese, CIS Koreans, and Korean Americans, as well as the diverse professions, roles, and responsibilities that they perform in South Korea. I further explore the social spaces that legacy migrants have established in South Korea, looking at how they went about creating those spaces and the nature of their engagement with Koreans and Korean society—specifically, how they determined what sort of social spaces they needed and how the social spaces they produced reflected their affective reality in South Korean society.
Conference papers on the topic "Migratory journey"
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Vollmann, Ralf, and Soon Tek Wooi. "The Indian Hakkas of Vienna." In GLOCAL Conference on Asian Linguistic Anthropology 2020. The GLOCAL Unit, SOAS University of London, 2020. http://dx.doi.org/10.47298/cala2020.4-2.
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Hakka emigration has created many smaller communities worldwide; where some groups continued their migratory journey. One such example is the Hakkas, who first migrated to Calcutta and then moved on to Vienna and Toronto, clustering in a close-knit social network. In various sessions, Viennese Hakkas of all age groups were interviewed for their lifestories and linguistic practices. (a) The linguistic competence of the migrants includes Hakka, English and Indian (Hindi, Ben¬gali) but often rather little German; Hakka is important at the workplace (Chinese restaurants) and is transmitted in families; Indian helps establish professional relationships with Indian migrants. (b) The social network is rather closed to Hakka friends from Calcutta or from other places. All Hakkas closely cooperate and usually have only few outside contacts. They consider Calcutta as their old homeland to which they return for Chinese New Year. (c) The younger generation consists of weak speakers of Hakka who are fully integrated into Austrian culture, but also maintain contacts to Toronto and love to visit friends and family in India. To conclude, the Indian Hakkas of Vienna are an interesting example of a two-step migration which first converted some Chinese into Indians, and then planted this Indian subgroup into Europe.