Results 31 to 40 of about 58,974,962 (179)
Global Change Biology, Volume 30, Issue 12, December 2024.Migratory 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 ...
Miguel de Felipe +4 more
wiley +1 more source
Dinámica de la fuerza de trabajo en Cuba (1846-1931).
Novedades en Población, 2013 Este artículo forma parte de una investigación mayor que estudia la actividad laboral de la población cubana en el periodo de 1846-1931, mediante el procesamiento de los datos estadísticos correspondientes a los censos de 1846, 1862, 1899, 1907, 1919 y ...
Orestes Gárciga Gárciga
doaj
The Journal of Latin American and Caribbean Anthropology, Volume 29, Issue 4, Page 352-363, December 2024.Abstract This paper explores selective aspects of the historical processes of organization of the kichwa peasantry in the Andes of Ecuador. Based on the analysis of two representative cases of confrontation between peasants and landowners over access to land in the province of Chimborazo, it discusses the relevance of the concept of “gamonalismo” as ...
Víctor Bretón
wiley +1 more source
Rent–wage inequality in Mexico City, 1770–1930
The Economic History Review, Volume 77, Issue 3, Page 1035-1056, August 2024.Abstract This article traces trends of income inequality in Mexico City from 1770 to 1930 by measuring the gaps between urban real estate rents and unskilled wages. The article presents the first long‐term series of real estate values and rental income for Mexico.
Amílcar E. Challú +2 more
wiley +1 more source
Revista Latinoamericana de Metodología de las Ciencias SocialesEl artículo examina las continuidades y rupturas metodológicas en los censos de población argentinos modernos y sus consecuencias en la construcción de series temporales de indicadores clave para las proyecciones de hogares.
Matías Scialabba, Mariana Marcos
doaj +1 more source
How many common cranes (Grus grus) winter in Spain and Portugal? [PDF]
Munibe Ciencias NaturalesThe Iberian Peninsula, i.e., Spain and Portugal, is one of the most important wintering areas of common cranes (Grus grus), accounting for 50% of the European winter population. Historical winter censuses have never managed to provide a complete picture,
Kees Woutersen
doaj +1 more source
Poverty &Public Policy, Volume 16, Issue 2, Page 126-145, June 2024.Abstract Although not designed as a social program to redistribute income, the Alaska Permanent Fund Dividend (PFD) has been reducing poverty by providing equal annual payments to nearly all state residents for over 40 years. We examine direct effects of the PFD on Alaska poverty rates since 1990, using US Census and American Community Survey Public ...
Matthew Berman
wiley +1 more source
Blind shots: non‐natural mortality counteracts conservation efforts of a threatened waterbird
Animal Conservation, Volume 27, Issue 3, Page 293-307, June 2024.The assessment of the marbled teal population reinforcement programme in Spain carrying out releases of captive‐bred birds showed that 60% of the mortality is due to non‐natural causes, mostly illegal shooting. To establish a self‐sustaining population, non‐natural mortality should be reduced by 40% and management measures such as prosecution of ...
J. M. Pérez‐García +4 more
wiley +1 more source
An expert‐based system to predict population survival rate from health data
Conservation Biology, Volume 38, Issue 1, February 2024.Abstract Timely detection and understanding of causes for population decline are essential for effective wildlife management and conservation. Assessing trends in population size has been the standard approach, but we propose that monitoring population health could prove more effective.
Lori H. Schwacke +21 more
wiley +1 more source
El contenido demográfico de la boleta de los censos de población de la década del 90 [PDF]
, 1989 Incluye BibliografíaContiene consideraciones sobre el marco general, formatos de cuestionarios, temas demográficos y anexo con preguntas que integran el contenido de los censos de ...
core