Results 51 to 60 of about 52,558 (145)

Patterns of Tree Species Abundance and Diversity on Urban Sidewalks in Macapá, Amapá, Brazil

Ecological Research, Volume 41, Issue 2, March 2026.
This study presents the first systematic inventory of street trees in Macapá, Northeastern Brazilian Amazon. Results reveal a dominance of exotic and fruit‐bearing species, low tree density, and a replacement of large canopy trees by smaller ones, indicating potential losses in ecosystem services and the need for more biodiversity‐focused afforestation
Lorena Antunes Jimenez, Taíssa Barros Lobato Cambraia, Estefany Baia Furtado, Wegliane Campelo, Saulo Meneses Silvestre de Sousa, Laísa Maria Freire, Lúcio Royer Trujillo, Ricardo Angelo Pereira Lima, José Julio Toledo   +8 more
wiley   +1 more source

Agua para alimentar al mundo [PDF]

, 2013
El debate del uso del agua en la agricultura está estancado desde hace algunos años. Sin embargo, cuando pensamos en cómo abordar este tema desde la propuesta de la Soberanía Alimentaria, hay puntos de la discusión que nos parecen muy claros y que es ...
Consejo Editor de la Revista Soberanía Alimentaria
core   +1 more source

The Popular Economy and Its Critics: Cooperation and Contradiction in the Sandinista Welfare‐Developmentalist State

Antipode, Volume 58, Issue 2, March 2026.
ABSTRACT The popular economy is a subjective economic community in Nicaragua. It is sustained by the imaginative and material labors of worker‐producers organized in households, cooperatives, and other self‐managing associations. This article demonstrates the popular economy's importance to the format of work, wealth, and welfare in contemporary ...
Jonah Walters
wiley   +1 more source

La competencia espacial por el aseguramiento hídrico México-Estados Unidos: el caso de los Sistemas Acuíferos Transfronterizos en la región Paso del Norte

Norteamérica, 2017
 México y Estados Unidos tienen una relación histórica en la distribución política de sus aguas transfronterizas. No obstante, con la profundización e importancia del Tratado de Libre Comercio de América del Norte (tlcan), emergen los sistemas acuíferos ...
Gonzalo Hatch Kuri
doaj   +1 more source

The Asymmetric Hydrodynamic Structure of a Wind‐Dominated River Plume

Journal of Geophysical Research: Oceans, Volume 131, Issue 2, February 2026.
Abstract This study investigates the velocity and salinity structure of the large surface‐attached, low‐latitude, and microtidal plume of the Magdalena River (southern Caribbean Sea) during a period of high freshwater discharge and variable wind conditions. The plume was analyzed through observations at multiple transects along, across, and diagonal to
Ó. Álvarez‐Silva, M. Becker, R. P. Flores, F. Arévalo, P. Holtermann, Y. Cardona, C. Winter   +6 more
wiley   +1 more source

En la práctica, ¿qué es la economía solidaria? [PDF]

, 2013
Contiene el cuadro "Solidarios sin tierra, Brasil".En este número, la sección "De un vistazo y muchas aristas" está distribuida por toda la revista. Con la ayuda de organizaciones como Emaús o REAS, presentamos proyectos de agricultura y alimentación que
Consejo Editor de la Revista Soberanía Alimentaria
core   +1 more source

Lobeniza: The outcome of an agroecological adaptive pathway in a rural food system undergoing transformation

Urban Agriculture &Regional Food Systems, Volume 11, Issue 1, 2026.
Abstract Local food systems in southern Mexico are increasingly affected by water scarcity, climate variability, and peri‐urban change. Despite growing scholarship on adaptive strategies and agroecology, limited empirical evidence explains how long‐term organizational dynamics translate agroecological principles into sustained adaptation under changing
María del Rosario Reyes‐Santiago, Patricia S. Sánchez‐Medina, Marco Antonio Sánchez‐Medina, Carlos Francisco Varapizuela Sánchez   +3 more
wiley   +1 more source

African Sovereignty: Constructing Institutional and Structural Changes in the International System

World Affairs, Volume 189, Issue 1, Spring 2026.
ABSTRACT Can international organizations (IOs) possess sovereignty like modern states? How can IOs obtain sovereignty? Can IOs supersede states as dominant political structures in the world system? Studies on conflicts of sovereignty in Europe conclude that the European Union lacks sovereign status and cannot supplant European states as the dominant ...
Obinna F. Ifediora
wiley   +1 more source

From Colonial Natures to Entangled Ecologies: Making Due and Relational Geographies of Indigenous Resurgence in the Chaco

Antipode, Volume 58, Issue 1, January 2026.
Abstract This paper offers an alternative reading of decolonial geographies by examining how people make due in the context of colonial natures. Drawing on collaborative ethnographic research, we illustrate how everyday acts of reclaiming ancestral lands serve as practices of resistance that foment Enxet and Sanapaná resurgence in Paraguay's Chaco.
Joel E. Correia, Clemente Dermott
wiley   +1 more source

La disputa por la soberanía de la zona septentrional antártica (2012-2022)

Revista Científica General José María Córdova
Este artículo analiza la disputa por la zona septentrional de la Antártica, en especial por la península antártica, entre Argentina, Chile y Reino Unido, junto a la pretensión soberana de Brasil, en el periodo de 2012 a 2022, desde la perspectiva de la ...
Aldo Andrés Garrido-Quiroz
doaj   +1 more source