Results 11 to 20 of about 149 (124)
Acta Biológica Colombiana, 2009 RESUMEN La utilidad del ADN mitocondrial (ADNmt) para determinar afinidad genética entre grupos indígenas contemporáneos e inferir sobre migraciones, ha sido demostrada; pero la imposibilidad de estudiar grupos prehispánicos extintos, limita las ...
DINORAH CASTRO DE GUERRA +6 more
doaj +3 more sources
Conservation-focused mapping of avian migratory routes using a pan-European automated telemetry network. [PDF]
Conserv BiolAbstract Accelerated biodiversity loss has destabilized functional links within and between ecosystems. Species that cross different ecosystems during migration between breeding and nonbreeding sites are particularly sensitive to global change because they are exposed to various, often ecosystem‐specific, threats.
Mitchell L +10 more
europepmc +2 more sources
Global review of shorebird tracking data to identify research gaps and conservation priorities. [PDF]
Conserv BiolAbstract Tracking has enabled rapid advances in knowledge of the movement behavior and habitat use of shorebirds and is thus making a growing contribution to their conservation. However, realizing the full potential that tracking holds for conservation involves understanding what has been performed on shorebirds to date and identifying regional and ...
Michel G +5 more
europepmc +2 more sources
A network approach to prioritize conservation efforts for migratory birds. [PDF]
Conserv Biol, 2020 Abstract Habitat loss can trigger migration network collapse by isolating migratory bird breeding grounds from nonbreeding grounds. Theoretically, habitat loss can have vastly different impacts depending on the site's importance within the migratory corridor.
Xu Y +8 more
europepmc +2 more sources
Habitat Changes at the Local Scale Have Major Impacts on Waterfowl Populations Across a Migratory Flyway. [PDF]
Glob Chang BiolMigratory waterbirds are declining worldwide due to habitat loss, but not much is known about how the loss of specific wetlands can affect waterbird populations at the biogeographical scale. To investigate that, we used the Guadalquivir Marshes (SW Spain) as a case study and combined 38 years of waterfowl winter counts with environmental and remote ...
de Felipe M +4 more
europepmc +2 more sources
Regímenes de in/movilidad y crisis migratoria en la ruta canaria
Perifèria. Revista d'investigació i formació en Antropologia, 2023 En este artículo analizamos los regímenes de in/movilidad producidos en las Islas Canarias como respuesta a un aumento en la llegada no autorizada de personas migrantes por vía marítima desde África del Oeste entre 2018 y 2023. Categorizada en el año 2020 como “crisis migratoria”, el gobierno español, de acuerdo con la Unión Europea, intentó ...
Ignacio Fradejas-García +1 more
openaire +2 more sources
An emerging coastal wetland management dilemma between mangrove expansion and shorebird conservation
Conservation Biology, Volume 36, Issue 5, October 2022., 2022 Abstract Coastal wetlands around the world have been degraded by human activities. Global declines in the extent of important coastal wetlands, including mangroves, salt marshes, and tidal flats, necessitate mitigation and restoration efforts. However, some well‐meaning management actions, particularly mangrove afforestation, can inadvertently cause ...
Chi‐Yeung Choi +7 more
wiley +1 more source
The beaten paths effect on patient inter‐regional mobility: An application to the Italian NHS
Papers in Regional Science, Volume 101, Issue 4, Page 945-977, August 2022., 2022 Abstract We study inter‐regional migration flows due to hospital admissions and focus on the impact of migration beaten paths. We estimate a gravity model applied to Italian data for the period 2010–2016. We find that beaten paths have a positive effect on inter‐regional patient flows, with estimated elasticity equal to +0.32%.
Paolo Berta +3 more
wiley +1 more source
The Journal of Latin American and Caribbean Anthropology, Volume 27, Issue 1-2, Page 37-56, June 2022., 2022 Resumen La reventa de gasolina brasilera en la frontera Venezuela–Brasil es un acontecimiento emergente que facilita el entendimiento sociopolítico nuevo de las estrategias de sobrevivencia locales más allá de la resiliencia social e informalidad en tiempos de crisis.
Morelia Morillo Ramos, Eva van Roekel
wiley +1 more source
La migración como determinante de la obesidad infantil en Estados Unidos y Latinoamérica
Obesity Reviews, Volume 22, Issue S5, Octubre 2021., 2021 Resumen La migración internacional tiene consecuencias económicas y en la salud. El proceso de aculturación en el país de acogida puede estar relacionado con la obesidad infantil. Utilizamos el marco conceptual del balance energético comunitario (CEB, por sus siglas en inglés) para analizar la relación entre migración y obesidad infantil en los hogares
Mireya Vilar‐Compte +7 more
wiley +1 more source