Results 21 to 30 of about 6,372 (218)

Crisis agraria y política de tierras en la provincia del Chaco (1953-1983)

open access: yesMundo Agrario, 2022
El presente artículo analiza la política de tierras de los gobiernos de la provincia del Chaco (Argentina) en el período de 1953 a 1983. En ese lapso el Estado aún poseía el dominio legal de amplias superficies, aunque gran parte de ellas ya estaban ...
Enrique César Schaller
doaj   +1 more source

Burn to harvest, burn to sabotage: Between fire and water on a sugar plantation in Madagascar

open access: yesAmerican Anthropologist, Volume 125, Issue 1, Page 100-111, March 2023., 2023
Abstract Since 2009, the Chinese state‐owned corporation SINLANX has been managing the Anjava Sugar Plantation, previously managed by French, Malagasy, and Mauritian companies, in northern Madagascar. Built upon the infrastructure constructed by the French colonial regime and operating based on a collaboration agreement between SINLANX and the Malagasy
Mingyuan Zhang
wiley   +1 more source

Ad maiorem Dei gloriam: Numeracy levels in the Guarani Jesuit missions

open access: yesThe Economic History Review, Volume 76, Issue 1, Page 87-117, February 2023., 2023
Abstract This work provides data on human capital for the Guarani Jesuit missions during the eighteenth century. Based on the age heaping methodology, the results of a large sample (over 3600 observations) suggest that the knowledge of numerical skills in these missions was exceptional.
Èric Gómez‐i‐Aznar
wiley   +1 more source

Geographic patterns of tree dispersal modes in Amazonia and their ecological correlates

open access: yesGlobal Ecology and Biogeography, Volume 32, Issue 1, Page 49-69, January 2023., 2023
Abstract Aim To investigate the geographic patterns and ecological correlates in the geographic distribution of the most common tree dispersal modes in Amazonia (endozoochory, synzoochory, anemochory and hydrochory). We examined if the proportional abundance of these dispersal modes could be explained by the availability of dispersal agents (disperser ...
Diego F. Correa   +207 more
wiley   +1 more source

Las empresas de aviación comercial y el sector agropecuario en Chile, 1948-1973

open access: yesHistoria Crítica, 2023
Context/Objective: This article examines the role that an emerging sector of private commercial aviation firms played in the agricultural industry by providing aerial fumigation and cargo services in Chile from the post-WWII to 1973.
Diego Romero Pavez, Claudio Robles Ortiz
doaj   +1 more source

Samuel Garrido: una contribución fundamental a la historia económica y la historia agraria

open access: yesMillars. Espai i Història, 2023
En este artículo se analiza la contribución de Samuel Garrido, fallecido en 2022, a la historia económica y la historia agraria. Para ello se abordan los tres ejes fundamentales en torno a los cuales se desarrolló su investigación. En primer lugar, se estudia su aportación al cooperativismo agrario, temática principal de su obra.
Planas, Jordi   +2 more
openaire   +6 more sources

A temperature‐dependent phenology model for Apanteles subandinus Blanchard, parasitoid of Phthorimaea operculella Zeller and Symmetrischema tangolias (Gyen)

open access: yesJournal of Applied Entomology, Volume 146, Issue 4, Page 424-439, May 2022., 2022
Abstract The potato tuber moth (Phthorimaea operculella Zeller) is a major invasive pest of potato (Solanum tuberosum L.) worldwide. Classical biological control using parasitoids had been of primary interest during the last decades to control this pest. More than twenty parasitoid species have been reported parasitizing P. operculella.
Verónica Cañedo   +4 more
wiley   +1 more source

AVONET: morphological, ecological and geographical data for all birds

open access: yesEcology Letters, Volume 25, Issue 3, Page 581-597, March 2022., 2022
Existing morphological trait datasets for major taxonomic groups are highly incomplete, limiting their utility to ecologists and evolutionary biologists. We present a global dataset containing comprehensive morphological information, coupled with ecological and geographical variables, for all bird species.
Joseph A. Tobias   +115 more
wiley   +1 more source

What feeds on Quercus ilex L.? A biogeographical approach to studying trophic interactions in a Mediterranean keystone species

open access: yesDiversity and Distributions, Volume 28, Issue 1, Page 4-24, January 2022., 2022
Abstract Aim Holm oak (Quercus ilex L.) is regarded as a keystone plant species. Trophic interactions may affect the distribution and abundance of phytophagous species, but the number of arthropod species that use holm oak as a food resource and their levels of host specificity are not yet known.
Juan Antonio Hernández‐Agüero   +3 more
wiley   +1 more source

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