Satisfacción vital y calidad de vida estudiantil con relación al autoconcepto familiar en el contexto migratorio en Chile / Life satisfaction and students' quality of life in relation to family self-concept in the migratory context in Chile

Resumen La migración adolescente en Chile es un fenómeno en desarrollo del que se tienen muy pocos estudios respecto a su satisfacción con la vida, calidad de vida percibida y autoconcepto familiar en relación a la población nativa. Este artículo tiene como objetivo comparar la satisfacción con la vida, calidad de vida y autoconcepto familiar de ambos grupos y analizar de qué manera se relacionan ambos constructos en la muestra estudiada. Método: Se administraron las escalas SLSS, BMSLSS y AF5_DF a una muestra de 406 adolescentes de edades comprendidas entre los 12 y 16 años. 56.65% de los estudiantes eran chicas y el 43.35% chicos. La muestra estuvo constituida por 55.91% de estudiantes nacidos en Chile y 44.09% de estudiantes migrantes. Resultados: Se observaron diferencias en algunos ítems de las escalas SLSS y BMSLSS entre los dos grupos (nativos y migrantes). No se aprecian diferencias estadísticamente significativas en la Escala AF5_DF. En términos de correlaciones, la Escala BMSLSS explica mejor la Escala SLSS en los estudiantes nativos. En el caso de los estudiantes migrantes, la Escala AF5_DF mostró una correlación más fuerte con la Escala SLSS. La correlación de la BMSLSS_SF con AF5_DF también es mayor en los nativos. Discusión: Los niveles de satisfacción con la vida, calidad de vida percibida y autoconcepto familiar no difieren ampliamente en los dos grupos. La discusión enfatiza la necesidad de seguir explorando el tema con muestras representativas y con metodología cualitativa, de manera longitudinal e incorporando otras variables.

Abstract Adolescent migration in Chile is a developing phenomenon of which there are very few studies regarding their satisfaction with life, perceived quality of life and family self-concept in relation to the native population. This article aims to compare the satisfaction with life, quality of life and family self-concept of both groups and analyze how these constructs are related in the sample studied. Method: The SLSS, BMSLSS and AF5_DF scales were administered to a sample of 406 adolescents aged between 12 and 16 years. 56.65% of the students were girls and 43.35% boys. The sample consisted of 55.91% of students born in Chile and 44.09% of migrant students. Results: Differences were observed in some items of the SLSS and BMSLSS scales between the two groups (natives and migrants). There are no statistically significant differences in the AF5_DF Scale. In terms of correlations, the BMSLSS Scale better explains the SLSS Scale in native students. In the case of migrant students, the AF5_DF Scale showed a stronger correlation with the SLSS Scale. The correlation of the BMSLSS_SF with AF5_DF is also higher in the native ones. Discussion: The levels of satisfaction with life, perceived quality of life and family self-concept do not differ widely in the two groups. The discussion emphasizes the need to continue exploring the issue with representative samples and qualitative methodology, longitudinally and incorporating other variables.

The genetic characterization of fall armyworm populations in Ecuador and its implications to migration and pest management in the northern regions of South America.

The fall armyworm (Spodoptera frugiperda) is a moth pest native to the Western Hemisphere that has recently become a global problem, invading Africa, Asia, and Australia. The species has a broad host range, long-distance migration capability, and a propensity for the generation of pesticide resistance traits that make it a formidable invasive threat and a difficult pest to control. While fall armyworm migration has been extensively studied in North America, where annual migrations of thousands of kilometers are the norm, migration patterns in South America are less understood. As a first step to address this issue we have been genetically characterizing fall armyworm populations in Ecuador, a country in the northern portion of South America that has not been extensively surveyed for this pest. These studies confirm and extend past findings indicating similarities in the fall armyworm populations from Ecuador, Trinidad-Tobago, Peru, and Bolivia that suggest substantial migratory interactions. Specifically, we found that populations throughout Ecuador are genetically homogeneous, indicating that the Andes mountain range is not a long-term barrier to fall armyworm migration. Quantification of genetic variation in an intron sequence describe patterns of similarity between fall armyworm from different locations in South America with implications for how migration might be occurring. In addition, we unexpectedly found these observations only apply to one subset of fall armyworm (the C-strain), as the other group (R-strain) was not present in Ecuador. The results suggest differences in migration behavior between fall armyworm groups in South America that appear to be related to differences in host plant preferences.

Genetic characterization of fall armyworm (Spodoptera frugiperda) in Ecuador and comparisons with regional populations identify likely migratory relationships.

Fall armyworm, Spodoptera frugiperda (J. E. Smith), is an important agricultural pest native to the Americas that has recently been introduced into the Eastern Hemisphere where it has spread rapidly through most of Africa and much of Asia. The long-term economic consequences of this invasion will depend on how the species and important subpopulations become distributed upon reaching equilibrium, which is expected to be influenced by a number of factors including climate, geography, agricultural practices, and seasonal winds, among others. Much of our understanding of fall armyworm movements have come from mapping genetically defined subpopulations in the Western Hemisphere, particularly in North America where annual long-distance migrations of thousands of kilometers have been documented and modeled. In contrast, fall armyworm mapping in much of the rest of the hemisphere is relatively incomplete, with the northern portion of South America particularly lacking despite its potential importance for understanding fall armyworm migration patterns. Here we describe the first genetic description of fall armyworm infesting corn in Ecuador, which lies near a likely migration conduit based on the location of regional trade winds. The results were compared with populations from corn habitats in select locations in the Caribbean and South America to investigate the possible migratory relationship between these populations and was further assessed with respect to prevailing wind patterns and the distribution of locations with climate favorable for fall armyworm population establishment and growth.