Results 41 to 50 of about 74,452 (211)

Spatiotemporal Dynamics of Non‐Ecological Speciation in Rubyspot Damselflies (Hetaerina spp.)

Molecular Ecology, Volume 34, Issue 12, June 2025.
ABSTRACT Non‐ecological speciation is a common mode of speciation, which occurs when allopatric lineages diverge in the absence of pronounced ecological differences. Yet, relative to other speciation mechanisms, non‐ecological speciation remains understudied.
C. Patterson, A. Brennan, H. Cowling, A. González‐Rodríguez, G. F. Grether, L. Mendoza Cuenca, M. Springer, Y. M. Vega‐Sánchez, J. Drury   +8 more
wiley   +1 more source

Is there a basic framework for training in demography?

Papeles de Población, 2003
¿Existe un marco de referencia básico para la enseñanza de la demografía?: Este trabajo hace un recuento del programa de demografía en Cedeplar —desde su comienzo como especialización en la maestría en la facultad de Economía, hasta la actualidad ...
Simone Wajnman, Eduardo Luís Gonçalves Rio Neto   +1 more
doaj  

Prácticas de ciudadanía europea. El uso estratégico de las identidades en la participación política de los inmigrantes comunitarios

Arbor: Ciencia, Pensamiento y Cultura, 2010
La política local es un campo de negociación e intercambio social en el cual se perciben de forma destacada las profundas transformaciones que la sociedad española vivió a partir de los procesos masivos de inmigración de la última década.
Michael Janoschka
doaj   +1 more source

Reframing the Relationship Between Fertility and Education in Adolescence: 60 Years of Evidence From Latin America

Population and Development Review, Volume 51, Issue 2, Page 656-701, June 2025.
Abstract It is a demographic puzzle that Latin America and the Caribbean's high levels of adolescent fertility have persisted over the course of its dramatic fertility transitions and schooling expansions. These phenomena usually occur alongside postponements to entry into motherhood.
Ann Garbett, Sarah Neal, Angela Luna Hernandez, Nikos Tzavidis   +3 more
wiley   +1 more source

Remove saplings early: Cost‐effective strategies to contain tree invasions and prevent their impacts

Journal of Applied Ecology, Volume 62, Issue 3, Page 661-676, March 2025.
Our highest‐ranking strategies represent management actions to start implementing in the field as part of an adaptive management plan that iteratively evaluates the validity of our simulation model and updates the management recommendations. Our study can be applied to guide management of invasive pines and replicated with any invasive woody species ...
Jaime Moyano, Pablo García‐Díaz, Barbara Langdon, Stephen C. F. Palmer, Paul Caplat, Xavier Lambin, Aníbal Pauchard, Martin A. Nuñez   +7 more
wiley   +1 more source

Números para la pluralidad cultural [PDF]

, 2014
Mexico State Indigenous Demographics book review states the importance of this volume for indigenous languages researchers, demographers and public policy specialists.Reseña del libro Demografía indígena en el Estado de México, de Eduardo Sandoval ...
BASTIDA MUÑOZ, MINDAHI CRESCENCIO, BASTIDA MUÑOZ, MINDAHI CRESCENCIO, Gutiérrez Becerril, Jaime Rodolfo, Gutiérrez Becerril, Jaime Rodolfo   +3 more
core  

Between “Storm” and “Privilege”: The Unequal Impact of Online Learning In the Pandemic and its Consequences Among Romanian Graduates

European Journal of Education, Volume 60, Issue 1, March 2025.
ABSTRACT The COVID‐19 pandemic impacted the lives of students around the world, forcing them to study remotely through online learning. This article uses 60 in‐depth interviews with students from four Romanian universities (Iasi, Galati, Brasov and Cluj‐Napoca) who had recently completed 3‐year degrees to analyse the impact of remote learning on the ...
Silvia Marcu
wiley   +1 more source

La fecundidad alta en el Istmo Centroamericano: un riesgo en transición

Población y Salud en Mesoamérica, 2004
Por muchas razones, índices reproductivos elevados suelen considerarse una desventaja. En términos empíricos, el planteamiento se apoya en dos hechos estilizados: (a) la mayor fecundidad prevaleciente en comunidades pobres (por ejemplo en países pobres),
Jorge Rodríguez Vignoli
doaj   +1 more source

Assessing population viability and management strategies for species recovery of the critically endangered Puerto Rican parrot

Animal Conservation, Volume 28, Issue 1, Page 104-118, February 2025.
Recovery of endangered species is challenging, especially when it involves reintroduction and dynamic environmental conditions. We developed a population viability analysis (PVA) for the critically endangered Puerto Rican parrot to evaluate current status and potential future management strategies.
L. J. Faust, T. M. Martínez, A. W. Parsons, T. H. White Jr., R. Valentin, J. Vélez‐Valentín, B. Ramos‐Güivas, S. S. Nelson, M. Lopez   +8 more
wiley   +1 more source

Análisis del desempleo urbano a través de un estudio comparativo de métodos de clasificación

Revista de Economía y Estadística, 2005
Este trabajo propende a identificar los factores de riesgo que inciden en la precariedad laboral de la Población Económicamente Activa. Se adoptó como plataforma informativa la base de datos de la Encuesta Permanente de Hogares, octubre 2002, relevada ...
Margarita Díaz, Fernando Ferrero, Cecilia Díaz, Patricia Caro, María Inés Stimolo   +4 more
doaj