Log in

Relevant bibliographies by topics / Migratory Urge / Journal articles

To see the other types of publications on this topic, follow the link: Migratory Urge.

Journal articles on the topic 'Migratory Urge'

Author: Grafiati

Published: 4 June 2021

Last updated: 28 July 2025

Create a spot-on reference in APA, MLA, Chicago, Harvard, and other styles

Select a source type:

Consult the top 38 journal articles for your research on the topic 'Migratory Urge.'

Next to every source in the list of references, there is an 'Add to bibliography' button. Press on it, and we will generate automatically the bibliographic reference to the chosen work in the citation style you need: APA, MLA, Harvard, Chicago, Vancouver, etc.

You can also download the full text of the academic publication as pdf and read online its abstract whenever available in the metadata.

Browse journal articles on a wide variety of disciplines and organise your bibliography correctly.

1

Kidd, N. A. C., and A. M. Cleaver. "The control of migratory urge in aphis fabae scopoli (hemiptera: aphididae)." Bulletin of Entomological Research 76, no. 1 (1986): 77–87. http://dx.doi.org/10.1017/s0007485300015303.

Full text

Abstract:

AbstractSome flightworthy alate exules of Aphis fabae Scopoli reproduce before taking off while others do not. This difference in behaviour is influenced by crowding and has previously been taken as an indication of the urge to migrate, although it has never been conclusively demonstrated. In this study, the flight performance of those aphids depositing some nymphs before take-off (‘flyers’) was compared with those which did not (‘migrants’). In fact, no significant difference was found between migrants and flyers in any of the aspects of post-take-off flight or settling behaviour tested. In t

APA, Harvard, Vancouver, ISO, and other styles

2

Spencer, Randall C., Joseph Zydlewski, and Gayle Zydlewski. "Migratory Urge and Gill Na+,K+-ATPase Activity of Hatchery-Reared Atlantic Salmon Smolts from the Dennys and Penobscot River Stocks, Maine." Transactions of the American Fisheries Society 139, no. 4 (2010): 947–56. http://dx.doi.org/10.1577/t09-063.1.

Full text

APA, Harvard, Vancouver, ISO, and other styles

3

Katsarski, Nikolay. "FACTORS DETERMINING MIGRATION OF THE POPULATION." Knowledge International Journal 30, no. 6 (2019): 1729–33. http://dx.doi.org/10.35120/kij30061729k.

Full text

Abstract:

Migration as a phenomenon is present in the whole history of mankind. It is an unexplained urge for people to change, which is expressed in the search for security, happiness and opportunity for development. At different times, migration plays an important role in the lives of individuals, countries and continents, and becomes an important factor in the development of civilizations, their destiny and security. Politics plays a key role in the development and construction of migratory behavior in society. As a factor, it is related to the security of people, their interests in which their right

APA, Harvard, Vancouver, ISO, and other styles

4

Desholm, Mark. "Length of stay and volume of autumn staging Dunlins Calidris alpina at the Tipperne reserve, Denmark." Ornis Svecica 8, no. 1–2 (1998): 1–10. http://dx.doi.org/10.34080/os.v8.22954.

Full text

Abstract:

Resightings of dyed, staging Dunlins showed that the mean length of stay was 23.4 days. Applying this figure on data from the running bird counts I estimated that 33,928 Dunlins used the area during autumn 1996. Hence Tipperne qualify as a site of international importance with 1% of the flyway population using the area. The maximum number of Dunlins observed in a single autumn count in 1996 was 12,172 individuals. This substantial discrepancy suggests that maximum number is an inadequate measure of volume and with that of site quality. Analysis of a ten years period showed that maximum numbers

APA, Harvard, Vancouver, ISO, and other styles

5

Gordon, Susan C. C., Adam G. Duchesne, Michael R. Dusevic, et al. "Assessing species at risk legislation across Canadian provinces and territories." FACETS 9 (January 1, 2024): 1–18. http://dx.doi.org/10.1139/facets-2023-0229.

Full text

Abstract:

Canada’s provinces and territories govern species at risk across most of Canada, with the federal Species at Risk Act generally covering only aquatic species, migratory birds, and species living on federal land. More than a decade after a 2012 report by the environmental law charity Ecojustice on species at risk protection in Canada, we use the same criteria to evaluate the current state of provincial and territorial species at risk legislation, and we provide updates on changes in each jurisdiction since 2012. These criteria are as follows: whether at-risk species are being identified, whethe

APA, Harvard, Vancouver, ISO, and other styles

6

Holmes, Richard T., and Thomas W. Sherry. "Assessing Population Trends of New Hampshire Forest Birds: Local vs. Regional Patterns." Auk 105, no. 4 (1988): 756–68. http://dx.doi.org/10.1093/auk/105.4.756.

Full text

Abstract:

Abstract We examined the changes in abundance between 1969 and 1986 of 19 forest-dwelling, mostly migratory bird species breeding in New Hampshire at 2 different scales: one local (an intensively studied 10-ha plot in unfragmented forest) and the other regional (Breeding Bird Surveys statewide). Twelve of the 19 species exhibited similar trends at both scales. Eight neither increased nor decreased, and 4 (Least Flycatcher, Winter Wren, Wood Thrush, and Swainson's Thrush) declined significantly. Others increased, decreased, or remained steady at one or the other scale. Overall, more species dec

APA, Harvard, Vancouver, ISO, and other styles

7

Hernández Moreno, Nacho. "La atención humanitaria como alternativa viable y eficaz a la detención migratoria: por una política migratoria de retorno centrada en la integración." Cuadernos Electrónicos de Filosofía del Derecho, no. 45 (December 23, 2021): 100. http://dx.doi.org/10.7203/cefd.45.21244.

Full text

Abstract:

La detención de personas por su situación administrativa responde a una política migratoria coercitiva de protección «frente» al «otro», e ignora la perspectiva de integración y de protección «de» personas que debe regir toda estrategia en este contexto. La mera privación de libertad en ausencia de delito presenta serias dificultades para justificar su proporcionalidad, necesidad y razonabilidad por lo que urge la implementación real de alternativas a la detención. Los programas de atención humanitaria a los que fueron liberadas muchas personas de los CIE durante la pandemia pueden constituir

APA, Harvard, Vancouver, ISO, and other styles

8

Bourke, Angela. "Family History and a Migratory Legend in County Cavan." Irish University Review 54, no. 1 (2024): 64–71. http://dx.doi.org/10.3366/iur.2024.0647.

Full text

Abstract:

Éilís Ní Dhuibhne’s elegant essay, ‘“The Old Woman as Hare”: Structure and Meaning in an Irish Legend’, published in Folklore, delivers the outcome of considerable reading and thinking in just six pages of text, while notes and references take up another two. Gendered readings of Irish oral tradition were rare in the early nineties, especially in such readable form. I happily urged this example of Éilís’s work on my students of Modern Irish and retained most of her findings in memory. Rereading it thirty years later, however, I’m led among the small drumlin farms of north-west Cavan, where my

APA, Harvard, Vancouver, ISO, and other styles

9

Schwartz, James S. J. "Myth-free space advocacy part I—The myth of innate exploratory and migratory urges." Acta Astronautica 137 (August 2017): 450–60. http://dx.doi.org/10.1016/j.actaastro.2017.05.002.

Full text

APA, Harvard, Vancouver, ISO, and other styles

10

Adam AHMAT, Dr Taha. "OBSTACLES TO AGRICULTURAL DEVELOPMENT IN THE HAJAR LAMIS REGION OF CHAD IN THE PERIOD FROM 2005-2015." RIMAK International Journal of Humanities and Social Sciences 06, no. 01 (2024): 251–92. http://dx.doi.org/10.47832/2717-8293.27.14.

Full text

Abstract:

The study examined the obstacles to agricultural development in the Hadjer Lamis region of Chad, over the period from 2005 to 2015. Agriculture is one of the professions that founded civilization, and the first revolution of humanity in the history of mankind. It is a human activity that has been widely adopted by most peoples, because about half to two thirds of the world's population depends on it, including Chad, like other developing countries that largely depend on agriculture, where more than 60% of the population works there. It also contributes significantly to economic and social deve

APA, Harvard, Vancouver, ISO, and other styles

11

Anderson, Taylor, Emily N. Meese, James Marcus Drymon, et al. "Diel Vertical Habitat Use Observations of a Scalloped Hammerhead and a Bigeye Thresher in the Northern Gulf of Mexico." Fishes 7, no. 4 (2022): 148. http://dx.doi.org/10.3390/fishes7040148.

Full text

Abstract:

Understanding habitat use of elasmobranchs in pelagic environments is complicated due to the mobility of these large animals and their ability to move great distances in a three-dimensional environment. The Gulf of Mexico is a region where many highly migratory pelagic shark species occur, while in close proximity to coastal, anthropogenic activity including recreational and commercial fisheries. This study provides summary information on the vertical habitat use for a single male scalloped hammerhead and a single male bigeye thresher that were each caught and tagged with an archiving satellit

APA, Harvard, Vancouver, ISO, and other styles

12

Carrión Mena, Fernando, and Francisco Enríquez Bermeo. "Migración en y desde América Latina y el Caribe. Atacar las causas, no las consecuencias." Mundos Plurales - Revista Latinoamericana de Políticas y Acción Pública 10, no. 2 (2023): 53–70. https://doi.org/10.17141/mundosplurales.2.2023.6104.

Full text

Abstract:

América Latina soporta ahora un auge migratorio principalmente intrarregional, aunque una parte se proyecta hacia los países del norte, principalmente hacia los EE.UU. Las causas de ese auge migratorio son las desigualdades, la violencia, el despojo y la inestabilidad. En reacción, los países receptores de esa migración endurecen las condiciones de control migratorio y no enfrentan sus causas, a pesar de ser corresponsables de algunas de ellas. La cocaína que se consume de manera abundante en los países del norte durante decenios, ha creado y fortalecido a bandas criminales transnacionales que

APA, Harvard, Vancouver, ISO, and other styles

13

Schramm, Moritz. "Postmigrant perspectives: Radical diversity as artistic-political intervention." Crossings: Journal of Migration & Culture 14, no. 1 (2023): 89–104. http://dx.doi.org/10.1386/cjmc_00076_1.

Full text

Abstract:

In the last decade, the concept of radical diversity has gained traction, not least in the circles around the postmigrant theatre at the Maxim Gorki Theatre in Berlin. This essay explores this concept and interprets it as part of the overall tendency in postmigratory art and culture to move beyond clear-cut identity groups and to build alliances and coalitions beyond stable identity markers. Radical diversity thus not only denounces doctrines of cultural homogeneity and monoculturalism but also rejects the logic of integration and traditional ideas of multiculturalism. Against this background,

APA, Harvard, Vancouver, ISO, and other styles

14

Gaur, Gauri, Janhavi Y. Sawant, Ankita S. Chavan, et al. "Effect of Invasion of Borrelia burgdorferi in Normal and Neoplastic Mammary Epithelial Cells." Antibiotics 10, no. 11 (2021): 1295. http://dx.doi.org/10.3390/antibiotics10111295.

Full text

Abstract:

Borrelia burgdorferi, the causative agent of Lyme Disease, is known to be able to disseminate and colonize various organs and tissues of its hosts, which is very crucial for its pathogenicity and survival. Recent studies have shown the presence of B. burgdorferi DNA in various breast cancer tissues, in some with poor prognosis, which raises the question about whether B. burgdorferi can interact with mammary epithelial cells and could have any effect on their physiology, including tumorigenic processes. As the model in this study, we have used MCF 10A normal and MDA-MB-231 tumorigenic mammary e

APA, Harvard, Vancouver, ISO, and other styles

15

Martínez Escamilla, Margarita. "La inaplazable necesidad de un procedimiento de identificación de las víctimas de trata." Revista Sistema Penal Crítico 4 (January 1, 2024): e31467. http://dx.doi.org/10.14201/rspc.31467.

Full text

Abstract:

Para proteger y ofrecer una asistencia integral a las víctimas de trata y explotación, primero es necesario detectarlas e identificarlas. La identificación es una obligación del Estado y un derecho de las víctimas, del que depende el ejercicio de aquellos derechos que configuran su estatuto jurídico. Sin identificación, no hay derechos y son necesarios un modelo y un procedimiento que la promueva y la facilite. Este artículo desentraña y analiza la regulación de la identificación de las víctimas de trata y explotación en el ordenamiento jurídico español, poniendo de manifiesto graves déficits

APA, Harvard, Vancouver, ISO, and other styles

16

Velázquez Vargas, María del Socorro. "Desplazamientos forzados: migración e inseguridad en Ciudad Juárez, Chihuahua." Revistas Cuadernos de Trabajo de Estudios Regionales en Economía, Población y Desarrollo 2, no. 7 (2012): 1–25. http://dx.doi.org/10.20983/epd.2012.7.1.

Full text

Abstract:

El presente escrito tiene como objetivo estimar los impactos cuantitativos de la actual crisis de violencia e inseguridad sobre los movimientos de población en Ciudad Juárez, a fin de visualizarlos como un desplazamiento forzado en situación de “crisis social”. En este sentido, pone en el centro de la discusión –al menos para esta urbe fronteriza- la necesidad de reformular en un plano teórico los factores explicativos que tradicionalmente se han asumido para entender el complejo fenómeno migratorio interno e internacional. La información utilizada proviene de los Censos de Población del Insti

APA, Harvard, Vancouver, ISO, and other styles

17

Velázquez Vargas, María del Socorro. "Desplazamientos forzados: migración e inseguridad en Ciudad Juárez, Chihuahua." Revistas Cuadernos de Trabajo de Estudios Regionales en Economía, Población y Desarrollo 2, no. 7 (2012): 1–25. http://dx.doi.org/10.20983/epd.2012.7.1.

Full text

Abstract:

El presente escrito tiene como objetivo estimar los impactos cuantitativos de la actual crisis de violencia e inseguridad sobre los movimientos de población en Ciudad Juárez, a fin de visualizarlos como un desplazamiento forzado en situación de “crisis social”. En este sentido, pone en el centro de la discusión –al menos para esta urbe fronteriza- la necesidad de reformular en un plano teórico los factores explicativos que tradicionalmente se han asumido para entender el complejo fenómeno migratorio interno e internacional. La información utilizada proviene de los Censos de Población del Insti

APA, Harvard, Vancouver, ISO, and other styles

18

Volpe, Socorso, and Gustavo Fernetti. "Prospección de basurales históricos de la ciudad de Rosario." Teoría y Práctica de la Arqueología Histórica Latinoamericana 9 (November 28, 2019): 19–35. http://dx.doi.org/10.35305/tpahl.v9i0.19.

Full text

Abstract:

Los basurales suelen ser una forma privilegiada de acceso a la historia de una ciudad. La población de Rosario, una urbe que creció desde mediados de la década de 1850 y sobre todo a partir del auge migratorio entre 1880 y 1920, produjo numerosos basurales de diverso tipo. La introducción de mercancía industrial importada pobló los basurales rosarinos de innumerables fragmentos de composición heterogénea, pero que permiten -120 años después- aproximarse a la ciudad en formación.Para realizar estos potenciales estudios, durante los años 2014 a 2017 se relevaron en la ciudad más de 100 basurales

APA, Harvard, Vancouver, ISO, and other styles

19

Valero Juan, Eva María. "Y Chimbote es el Perú: la construcción mítica de la ciudad costeña en El zorro de arriba y el zorro de abajo." América sin nombre, no. 17 (December 15, 2012): 95. http://dx.doi.org/10.14198/amesn2012.17.11.

Full text

Abstract:

En El zorro de arriba y el zorro de abajo, la mirada andina, o sea, el punto de vista mítico, se enfoca hacia la ciudad costeña en profunda transformación desde mediados del siglo XX. Chimbote surge así como encrucijada del Perú cuyas dos progenies principales, la criolla y la indígena, se dieron la cita definitiva en la costa, con el aluvión migratorio de las provincias. Arguedas, que se presenta en la obra como escritor novel de la urbe, experimentó una nueva ecuación literaria, que combina la literatura urbana con la literatura mítica. Para ello, utilizó el mito de los zorros andinos que ap

APA, Harvard, Vancouver, ISO, and other styles

20

Montoya, María E. "Viewing the American West as a Chicana in China." Western Historical Quarterly 53, no. 1 (2021): 1–23. http://dx.doi.org/10.1093/whq/whab148.

Full text

Abstract:

Abstract In both scholarly work and popular imagination, the American West is the final destination of migrant from Europe and Mexico. The stories of those migrants, however, obscure the first migration (12,000 BP) from Asia into North America. That migration across the now-submerged land bridge of Beringia ended humanity’s millennia-long journey across the globe that originated in Africa more than 50,000 years earlier. Using two examples, this essay reflects on how the Asian origins of the first Americans have been transformed into myths that conceal humanity’s migratory nature. First, in Chi

APA, Harvard, Vancouver, ISO, and other styles

21

Wu, Jie, Hong Wu, Pengsheng Li, and Ciyong Lu. "HIV/STIs risks between migrant MSM and local MSM: a cross-sectional comparison study in China." PeerJ 4 (July 13, 2016): e2169. http://dx.doi.org/10.7717/peerj.2169.

Full text

Abstract:

Background.Internal migration plays a significant role in China’s HIV epidemic. However, few studies have directly compared migrant men who have sex with men (MSM) with local MSM with regard to HIV/sexually transmitted infections (STIs) risks.Methods.We conducted a study in Guangzhou, China, with the aim of understanding the differences in HIV/STIs risks between migrant MSM and local MSM. A cross-sectional study was conducted among 273 migrant MSM and 249 local MSM in Guangzhou, China. Their behavioral and serologic data on HIV/syphilis were collected and compared between the two groups. A mul

APA, Harvard, Vancouver, ISO, and other styles

22

Susilo, Tanto Budi, Rahmat Yunus, Rahmad Eko Sanjaya, Oni Soesanto, Arief Rahmad Maulana Akbar, and Yuyun Hidayat. "Penyuluhan Asal Mula Teknologi Vaksin Bagi Millinneal Pasca Covid-19 Di Minggu Raya." Jurnal Pengabdian ILUNG (Inovasi Lahan Basah Unggul) 3, no. 2 (2023): 229. http://dx.doi.org/10.20527/ilung.v3i2.9881.

Full text

Abstract:

AbstrakTulisan ini adalah bimbingan teknis akademis (bimteks) terhadap mahasiswa pasca covid-19. Suatu tinjauan ulang cognitive epistomology tentang vaksin yang digunakan. Ringkasan ulasannya berikut ini; Setelah perkembangan ilmu pengetahuan mikroorganisme pada era kisaran akhir abad 19, Griffith mengobservasi transformasi sel mikroorganisme streptococcus pheunomiae yang bersifat non patogen berubah menjadi patogen dengan metode thermal theraphy. Fenomena ini adalah mengesankan (impressive). Menjadi pertanyaan besar (enigma) mengapa kemampuan phatogensitas sel S. pheunomiae dapat berubah? Kes

APA, Harvard, Vancouver, ISO, and other styles

23

Hadibi, Zahir. "L’Algérie, de l’émigration ouvrière a la mobilité des compétences a la lumière de la globalisation ? Logiques et déterminants de mobilités transnationales." Áreas. Revista Internacional de Ciencias Sociales, no. 38 (June 29, 2019): 61–72. http://dx.doi.org/10.6018/areas.386101.

Full text

Abstract:

Le présent article repose sur une restitution des discours d’une poignée d’universitaires algériens ayant choisi l’émigration comme un chemin de vie. Il s’agit d’investiguer sur les motivations, trajectoires et raisons profondes qui exhortent ces jeunes à construire des projets de vie sous d’autres cieux. Après une vue rétrospective sur la configuration de la migration algérienne durant son histoire contemporaine, nous comptons analyser les récits d’un collectif d’étudiants en faisant des recoupements de leurs motivations partagées de vouloir émigrer pour la réalisabilité de leurs postérités,

APA, Harvard, Vancouver, ISO, and other styles

24

Escobar, María Begoña Carroza, Loreto Villanueva Pabón, Jovita Ortiz Contreras, and Nicole Romina Silva Zuazua. "MIGRANTES HAITIANAS Y ATENCIÓN MATERNA-PERINATAL EN EL CONTEXTO DE LA PANDEMIA EN CHILE." Medwave 24, S1 (2024): eSP225. https://doi.org/10.5867/medwave.2024.s1.sp225.

Full text

Abstract:

Introducción Chile ha experimentado una expansión de la población migrante, que ha puesto en conflicto al sistema de salud. Se ha reportado que esta población, en general, goza de buena salud, tienen menos ingresos económicos, menos acceso a vivienda, educación y empleo, entre otras condiciones de vulnerabilidad que se acentuaron en la pandemia del COVID-19. A pesar de que en Chile las personas inmigrantes gozan de los mismos derechos de acceso a salud que los no inmigrantes, persiste la incertidumbre sobre las desigualdades en la atención médica y los resultados de salud. Objetivos El objetiv

APA, Harvard, Vancouver, ISO, and other styles

25

Arboleda, Julio César. "Presentación: Formación, autonomía docente y enseñanza tao." Revista Boletín Redipe 13, no. 12 (2024): 17–20. https://doi.org/10.36260/fws9pa53.

Full text

Abstract:

Reflexión Si bien es cierto es necesario establecer relaciones intersubjetivas inspiradas en la comprensión, no menos lo es que hemos de ir más allá de éstas: pasar de las relaciones intersubjetivas (aún egóticas) basadas en la comprensión - anthropos, es decir de respeto mutuo, solidaridad, justicia y acogimiento entre los humanos, hacia relaciones socio-naturales, no solo cementadas en las relaciones sociales, en los nexos entre los sujetos singulares, sino además entre éstos y su dadora: la naturaleza orgánica e inorgánica, todo ello en función de poner las comprensiones en obra de vida int

APA, Harvard, Vancouver, ISO, and other styles

26

Mukunda rao, S. "Arrival number of winter migratory wetland birds reduction in Telikunji, Icthapuram mandle, Srikakulam district, Andra Pradesh, 532195, India." International Journal of Advanced Research in Science and Technology, 2014, 132–35. http://dx.doi.org/10.62226/ijarst20140339.

Full text

Abstract:

The present studies deal with winter migratory birds that arrive in à telikunji wetland in Telikunji Village in Ictchapuram mandal of Srikakulam district, Andra Pradesh. The present study reveals that a total of 36 species of wetland birds belonging to 7 orders and 11 families were observed from these wetlands. Out of these 36 species of wetland birds,17 species of birds were winter migratory,6 species were local migratory,11 species were resident, and 2 species were summer migratory. The present studies hint towards those conditions and reasons which have discouraged birds during my study per

APA, Harvard, Vancouver, ISO, and other styles

27

Albert, Steven K., and Rodney B. Siegel. "Improving the language of migratory bird science in North America." Ornithological Applications, November 7, 2023. http://dx.doi.org/10.1093/ornithapp/duad059.

Full text

Abstract:

Abstract Several long-accepted terms are widely misused in ornithology and have led to a misperception of important concepts in the ecology of Nearctic–Neotropical migratory birds. The term “North America” (and its ancillary terms “North American species”, “North American habitats”, etc.) is widely used to refer to the United States and Canada, when in fact it should include all of the continent from the Arctic through Panama. In a similar vein, the terms “wintering” and “over-wintering” (whether used to describe the status of individual birds or species, or as a modifier for terms like habita

APA, Harvard, Vancouver, ISO, and other styles

28

Gervais, Christine, Sophie Lampron‐de Souza, Pierre Pariseau‐Legault, Grace Chammas, Isabel Côté, and Karolane Cliche. "Family Experience of Detention for Migratory Reasons: Findings From a Qualitative Systematic Review." Child & Family Social Work, December 20, 2024. https://doi.org/10.1111/cfs.13254.

Full text

Abstract:

ABSTRACTIn response to growing international migration, several states have adopted controversial measures, including detaining migrants, which have detrimental impacts on migrants' physical, mental and social health. Although family is often at the heart of migratory decisions, few studies have used a family lens to examine this phenomenon. This paper reports on the findings of a qualitative systematic review that aims to describe the experience of migrant families dealing with detention. Articles were searched in relevant databases, and the quality of studies was assessed independently by tw

APA, Harvard, Vancouver, ISO, and other styles

29

Jiménez‐Gallardo, Lucía, Jimena López‐Arrabé, Javier Pérez‐Tris, and Carolina Remacha. "Young male blackcaps with blood parasite coinfections cope with oxidative stress favouring anthocyanin‐rich food during migratory fattening." Journal of Avian Biology, April 8, 2024. http://dx.doi.org/10.1111/jav.03214.

Full text

Abstract:

Parasites may alter host physiology, which may promote behavioural adaptations to counteract their effect. Adaptive feeding may help individuals to cope with infection, especially during physiologically demanding life stages. For instance, migrating birds need fuel for long‐distance flights and repair oxidative damage caused by intense aerobic exercise, and parasites may influence on how individuals balance these needs. Infected birds may face increased oxidative challenges, which could induce them to favour antioxidant defences over other needs, such as fattening. We tested whether migrating

APA, Harvard, Vancouver, ISO, and other styles

30

Deakin, Jessica E., Christopher G. Guglielmo, and Yolanda E. Morbey. "Effect of the Social Environment on Spring Migration Timing of a Songbird." Frontiers in Ecology and Evolution 9 (October 4, 2021). http://dx.doi.org/10.3389/fevo.2021.715418.

Full text

Abstract:

The influence of the social environment on the timing of the annual cycle is poorly understood. Seasonally migratory birds are under pressure to accurately time their spring migration, and throughout the annual cycle, they may experience variability of the local sex-ratio. A population-level male-biased sex ratio is predicted to advance spring migration timing in males and is attributed to the increased intra-specific competition for access to females and/or breeding territories. The present study had two goals. First, to develop a method that utilizes digitally coded radio-transmitters to qua

APA, Harvard, Vancouver, ISO, and other styles

31

Adeoba, ′Gbenga. "Migration and postmemorial witnessing in contemporary African poetry." Literature, Critique, and Empire Today, July 29, 2024. http://dx.doi.org/10.1177/30333962241253086.

Full text

Abstract:

The marginality of intra-African crossings in growing critical inquiries into African migration narratives informs this essay’s focus. Examining the poetry of Nigerian writers Peter Akinlabi and Bhion Achimba (formerly Chibuihe Obi Achimba) as creative texts that broaden understandings of migration forms within the continent, the essay suggests that the poets’ engagement with familial memories and the affective impact of displacement and forced migration cases open up opportunities to interrogate migratory trajectories in Africa. The essay builds on Rebecca Fasselt’s decolonial paradigm and To

APA, Harvard, Vancouver, ISO, and other styles

32

Pavón‐Jordán, Diego, Anthony D. Fox, Preben Clausen, et al. "Climate‐driven changes in winter abundance of a migratory waterbird in relation to EU protected areas." January 15, 2015. https://doi.org/10.1111/ddi.12300.

Full text

Abstract:

AbstractAimSpecies are responding to climate change by changing their distributions, creating debate about the effectiveness of existing networks of protected areas. As a contribution to this debate, we assess whether regional winter abundances and distribution of the SmewMergellus albellus, a migratory waterbird species listed on Annex I (EUBirds Directive) that overwinters exclusively in European wetlands, changed during 1990–2011, the role of global warming in driving distributional changes and the effectiveness of the network of Special Protection Areas (SPAs,EUBirds Directive) in the cont

APA, Harvard, Vancouver, ISO, and other styles

33

Fox, Anthony D., and Antra Stīpniece. "Interactions between stoneworts (Charales) and waterbirds." Biological Reviews, October 22, 2023. http://dx.doi.org/10.1111/brv.13027.

Full text

Abstract:

ABSTRACTStoneworts (Charales) are green algae that represent an important food resource for many waterbird species in Europe and elsewhere. Browsing avian herbivores (e.g. swan, goose, duck and coot species) consume Charales plant vegetative parts, by head‐dipping, up‐ending or diving. A lower fibre content and longer growing season may make Charales as attractive to such herbivores as sympatric submerged higher plant species in some circumstances. Charales respond to environmental stress (e.g. drought) by producing abundant diaspores, in the form of oospores (sexual) and bulbils (asexual), bo

APA, Harvard, Vancouver, ISO, and other styles

34

Jreidini, Nathalie, and David M. Green. "Study methodology impacts density-dependent dispersal observations: a systematic review." Movement Ecology 12, no. 1 (2024). http://dx.doi.org/10.1186/s40462-024-00478-6.

Full text

Abstract:

AbstractThe relationship between animal dispersal and conspecific density has been explored in various study systems but results in terms of both the magnitude and the direction of density dependence are inconsistent. We conducted a thorough review of the literature (2000–2023) and found k = 97 empirical studies of birds, fishes, herpetofauna (amphibians and reptiles), invertebrates, or mammals that had tested for a correlation between conspecific density and animal dispersal. We extracted categorical variables for taxonomic group, sex, age, migratory behavior, study design, dispersal metric,

APA, Harvard, Vancouver, ISO, and other styles

35

Dufour, Paul, Magnus Hellström, Christophe de Franceschi, et al. "Using age‐ratios to investigate the status of two Siberian Phylloscopus species in Europe." Ibis, December 11, 2024. https://doi.org/10.1111/ibi.13382.

Full text

Abstract:

Distinguishing between vagrancy and regular migration has proved to be challenging as vagrants may, in theory, act as pioneers in the establishment of new migration routes. Because migratory songbirds tend to follow the same orientation and migration route throughout their lives, age assessment can help to distinguish individuals which have already used a route (i.e. adults) from those using it for the first time (i.e. juveniles). The presence of a significant proportion of adult individuals would suggest the presence of regular migrants in a vagrancy context. To decipher the status of two spe

APA, Harvard, Vancouver, ISO, and other styles

36

Vargas-Daza, Angela M., Juan F. Betancurt-Grisales, Leydy J. Cardona-Salazar, Yenny A. Benavides-Ossa, Francisco E. Fontúrbel, and Gabriel J. Castaño-Villa. "Assessing bird diversity in Neotropical rainforests: A comparative study of camera traps and mist nets reveals complementary sampling approaches." Ornithological Applications, May 27, 2023. http://dx.doi.org/10.1093/ornithapp/duad019.

Full text

Abstract:

Abstract Different sampling methods are used to study bird diversity in the tropics, mist nets being one of the most common approaches. However, camera traps have been used for this purpose in the last 20 years. We compared the performance of mist nets and camera traps in sampling the diversity of understory and sub-canopy birds in a Neotropical rainforest. Given its high biodiversity, obtaining accurate bird diversity estimates in these forests is a challenging task. We sampled secondary forest patches in the Colombian central Andes between 2019 and 2021. We compared the effectiveness of both

APA, Harvard, Vancouver, ISO, and other styles

37

Deng, Haiyan, Juan Zhang, Shuaijun Chen, et al. "A Ubiquitination-Related Gene Prognostic Signature and the Oncogenic Role of RNF149 in Nasopharyngeal Carcinoma: scRNAseq-Based Bioinformatics and Experimental Validation." Current Medicinal Chemistry 32 (June 25, 2025). https://doi.org/10.2174/0109298673378818250610053439.

Full text

Abstract:

Introduction: Nasopharyngeal carcinoma (NPC) is an aggressive malignancy with a poor prognosis. Ubiquitination is a complex post translational modification involved in cancer progression. However, ubiquitination related genes (URGs) in immunotherapy of NPC remains largely unexplored. Methods: Differentially expressed URGs were screened based on the single-cell RNA sequencing (scRNA-seq) dataset and a risk model of NPC was constructed and evaluated for prognostic significance. The oncogenic role of RNF149 in NPC was investigated through in vitro and in vivo experiments, including tumor cells, N

APA, Harvard, Vancouver, ISO, and other styles

38

Barrera Castellanos, Johan Arturo, and Jeny Paola Fuquene Salas. "Migración y trabajo sexual masculino. El caso de hombres venezolanos en Bogotá (2017-2018)." Revista Colombiana de Sociología 43, no. 1 (2020). http://dx.doi.org/10.15446/rcs.v43n1.79112.

Full text

Abstract:

En el trabajo sexual masculino se evidencian características itinerantes como la migración. Este fenómeno se encuentra ligado a la historicidad del sexo-servicio. En este artículo, a través de los resultados de un proceso investigativo y desde un enfoque cualitativo asociado a los planteamientos del construccionismo social, se aborda el caso de los hombres provenientes de Venezuela que ejercen el comercio sexual en Bogotá, Colombia. En coherencia con la metodología, se realizaron siete entrevistas semiestructuradas acompañadas de ejercicios de observación participante, así como una revisión bi

APA, Harvard, Vancouver, ISO, and other styles

We offer discounts on all premium plans for authors whose works are included in thematic literature selections. Contact us to get a unique promo code!