Results 41 to 50 of about 18,875 (205)

Fuentes para la historia de la ganadería trashumante en el noreste novohispano

América Latina en la Historia Económica, 2003
El estudio de la ganadería es un tema que ha estado presente en la historiografía mexicana desde la década de 1940 cuando se empezó a discutir la influencia de una institución como la Mesta española para el caso novohispano.
Valentina Garza Martínez
doaj   +1 more source

Ganadería, Poblamiento y Deforestación de los Ecosistemas Amazónicos Caqueteños (1951-1980)

Historia Ambiental Latinoamericana y Caribeña, 2022
Los ecosistemas amazónicos caqueteños padecen a lo largo del período 1951-1980 un proceso de transformación a causa de la deforestación que genera la consolidación de la ganadería como modelo de desarrollo económico predominante.
Edinson Orlando Ceballos Bedoya
doaj   +1 more source

Comparative Evaluation of Follicular Flushing Frequency and Scraping Time During Ovum Pick‐Up in Mares: Effects on Oocyte Recovery Rate and Technical Considerations

Reproduction in Domestic Animals, Volume 61, Issue 2, February 2026.
ABSTRACT Transvaginal ultrasound‐guided follicular aspiration or ovum pick‐up (OPU) has become the standard technique for oocyte collection in mares for intracytoplasmic sperm injection (ICSI). Although repeated follicular flushes and wall scraping are commonly used to improve oocyte recovery rate (ORR), the relative contribution of each remains ...
Adrián Márquez‐Moya, Nerea Carreras‐Vico, Laura Sala‐Ayala, Rebeca Martínez‐Boví, Juan Cuervo‐Arango   +4 more
wiley   +1 more source

Experimental Evidence That Blood Parasite Infection Affects Incubation Patterns in a Cavity‐Nesting Songbird

Integrative Zoology, Volume 21, Issue 1, Page 178-191, January 2026.
Chronic blood parasite infections in wild birds can affect their incubation behavior. In pied flycatchers, females with reduced parasite infections incubated for longer than control females. Despite behavioral changes, no immediate effects on fitness were observed.
Marina García‐del Río, Santiago Merino, Julia Chércoles‐Nieto, Davide Baldan, Manuel Fuertes‐Recuero, Alejandro Cantarero   +5 more
wiley   +1 more source

Spatial, Temporal, and Host‐Specificity Patterns of Three Genera of Blood Coccidian Parasites in Two Syntopic Mediterranean Lizards

Integrative Zoology, Volume 21, Issue 1, Page 69-78, January 2026.
Our results indicated that the three genera of blood parasites found in the two species of lizards studied can exhibit distinct epidemiological patterns across microgeographic and temporal scales. ABSTRACT We investigated the phenological variation of three genera of blood parasites of lizards (Schellackia, Karyolysus, and Lankesterella) using samples ...
Claudia Mediavilla, Guillermo Fandos, Sara Blázquez‐Castro, Senda Reguera, Rafael Barrientos, Rodrigo Megía‐Palma   +5 more
wiley   +1 more source

Aplicación del modelo de porter en el estudio de las condiciones de competitividad del sector ganadero en el departamento del Meta

Episteme, 2010
Según la teoría económica clásica los países o las regiones deben especializarse en la producción de aquellos bienes en los que pueden obtener los mayores rendimientos y la mayor eficiencia productiva y que por lo tanto puedan tener los menores costos ...
Diana Alejandra Martínez Gómez, Lina Alejandra Clavijo Pinzón, Yiceth Sierra Sierra Vergara   +2 more
doaj   +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

Composición y estructura vegetal de fragmentos de bosque seco tropical en paisajes de ganadería extensiva bajo manejo silvopastoril y convencional en Córdoba, Colombia

Caldasia, 2019
La ganadería extensiva ha afectado significativamente la biodiversidad y conservación del bosque seco tropical (bs-T), hoy considerado el ecosistema más amenazado en las tierras bajas tropicales. Se analizó la composición florística, riqueza y estructura
Jesús Ballesteros-Correa, Luis Morelo-García, Jairo Pérez-Torres   +2 more
doaj   +1 more source

Transformación socioprofesional, trayectoria demográfica y familia. Un estudio del artesanado reusense a partir de las actas de matrimonio: 1601-1810 [PDF]

, 1981
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Moreno Almárcegui, Antonio
core   +1 more source

Strong Variation in Land‐Use Change Impacts on Tropical Avian Phylogenetic Diversity Between Ecoregions Highlights the Need to Sample Large Spatial Scales

Global Change Biology, Volume 32, Issue 1, January 2026.
Forest conversion for agriculture is a major cause of biodiversity loss in the tropics, but its impacts depend on how broadly they are measured. Using data from across Colombia, one of the most biodiverse countries in the world, we examined how deforestation for cattle farming affects the evolutionary history of bird species.
Giovanny Pérez, Simon C. Mills, Jacob B. Socolar, Jose M. Ochoa Quintero, Robert P. Freckleton, Torbjørn Haugaasen, James J. Gilroy, David P. Edwards   +7 more
wiley   +1 more source