Results 11 to 20 of about 224 (125)

Anthropogenic or Natural Dispersal: Case of the Spiny‐Tailed Iguanas (Ctenosaura) on Clarion Island, Mexico [PDF]

open access: yesEcology and Evolution, Volume 15, Issue 10, October 2025.
Species can colonize oceanic islands by both natural and human‐assisted dispersal and human‐caused species introductions have had catastrophic effects on ecosystems around the world. The Spiny‐tailed Iguanas inhabiting Clarion Island were previously considered introduced. Molecular data and analyses support iguanas' arrival on Clarion Island by natural
Daniel G. Mulcahy   +5 more
wiley   +2 more sources

Soils, scale, or elites? Biological innovation in Uruguayan cattle farming, 1880–1913

open access: yesThe Economic History Review, Volume 76, Issue 2, Page 498-524, May 2023., 2023
Abstract This article examines the economics of innovation in livestock rearing during the first globalisation in Uruguay, the country with the most cattle per person in the world, both then and now. Using a new historical dataset of Uruguayan agriculture, the first one at a sub‐provincial level, I exploit regional differences in the adoption of cattle
Emiliano Travieso
wiley   +1 more source

Does the loss of diadromy imply the loss of salinity tolerance? A gene expression study with replicate nondiadromous populations of Galaxias maculatus

open access: yesMolecular Ecology, Volume 32, Issue 9, Page 2219-2233, May 2023., 2023
Abstract The recurrent colonization of freshwater habitats and subsequent loss of diadromy is a major ecological transition that has been reported in many ancestrally diadromous fishes. Such residency is often accompanied by a loss of tolerance to seawater.
M. Lisette Delgado   +6 more
wiley   +1 more source

Bird species occupancy trends in Southeast Mexico over 1900–2020: Accounting for sighting record absences

open access: yesJournal of Animal Ecology, Volume 92, Issue 3, Page 606-618, March 2023., 2023
This article accounts for species absences before occupancy analyses, addressing a long‐standing concern of whether absence is true or due to low sampling effort. The authors affiliate long‐term bird species trends with functional traits in a lowland tropical rainforest landscape in southeast Mexico to help guide land management and conservation ...
Dallas R. Levey   +2 more
wiley   +1 more source

Experimental admixture among geographically disjunct populations of an invasive plant yields a global mosaic of reproductive incompatibility and heterosis

open access: yesJournal of Ecology, Volume 109, Issue 5, Page 2152-2162, May 2021., 2021
Biogeographic patterns of variation in reproductive success in an invasive weed with allopatric distribution. Abstract Invasive species have the ability to rapidly adapt in the new regions where they are introduced. Classic evolutionary theory predicts that the accumulation of genetic differences over time in allopatric isolation may lead to ...
Ramona E. Irimia   +10 more
wiley   +1 more source

Performance assessment of furrow irrigation in two different soil textures under high rainfall and field slope conditions

open access: yesAgrociencia Uruguay
Furrow irrigation systems have been widely evaluated around the world. However, there is no national data indicating how efficient furrow irrigation is under Uruguayan conditions.
Gabriel Ribas, Claudio García
doaj   +1 more source

Voces de un paisaje inventado: memoria oral de los pueblos de colonización

open access: yesAnclajes
Partiendo de afirmaciones volcadas por fuentes bibliográficas recientes entorno a las políticas de colonización de Franco, se analiza el testimonio de colonos y colonas en poblados de nueva planta con el fin, no solo de sacar a la luz ambigüedades ...
Maria Ayete Gil
doaj   +1 more source

Disaffiliation of Family Producers in Uruguay’s Dairy Value Chain

open access: yesAgrociencia Uruguay
The crisis in the Uruguayan dairy industry raises alerts about the intensification processes and the expulsion of family dairy producers who supply industrial plants.
Adriana Machado   +2 more
doaj   +1 more source

Presa de Valuengo

open access: yesInformes de la Construccion, 1958
El Instituto Nacional de Colonización, y después de detenido estudio de un anteproyecto de la Confederación Hidrográfica del Guadiana, decidió se construyese una presa que debía embalsar las aguas del río Ardila, con objeto de construir un embalse cuya ...
Equipo Editorial
doaj   +1 more source

Evaluación de la experiencia de la Cooperativa Agraria Mundo Azul

open access: yesPampa: Revista Interuniversitaria de Estudios Territoriales, 2014
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Carlos Repetto, Miguel Vassallo
doaj   +1 more source

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