Results 41 to 50 of about 223,518 (149)
Variabilidad fitoquímica entre accesiones colombianas de Lippia alba (Mill.) N.E. Brown
Revista de Investigación Agraria y Ambiental, 2016 La fluctuación fisiológica de constituyentes orgánicos alrededor de su respuesta ambiental, tiene dos componentes, variación intra e interindividual. Este estudio evaluó los componentes de variación biológica con base en una matriz de presencia-ausencia,
José Omar Cardona Montoya +1 more
doaj +1 more source
Análisis Filosófico, 2022 En este artículo se desarrolla el marco conceptual del “contextualismo sexual” para el estudio de las variables relacionadas con el sexo en la investigación biomédica.
Sarah S. Richardson
doaj +1 more source
Journal of Applied Ecology, Volume 63, Issue 7, July 2026.By using probabilistic models to predict contacts as a function of spatially and temporally varying environmental conditions, we show that population‐level conditions at the time of disease introduction can structure opportunities for transmission within each population.
Diana K. Meza +10 more
wiley +1 more source
Patrones de variación y covariación morfométrica craneofacial en poblaciones sudamericanas [PDF]
, 2011 El estudio de los patrones de variación y covariación morfológica entre y dentro de poblaciones humanas es clave para la compresión de los procesos evolutivos involucrados en la diversificación de las mismas.
Pérez, Sergio Iván
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Anales de la Facultad de Medicina, 2018 Sr. Editor. La demora en la medición de una magnitud bioquímica puede originar errores en la interpretación de los resultados debido a la variación de los componentes de la muestra, por tal razón queremos compartir un estudio cuyo objetivo fue determinar
Italo Moisés Saldaña Orejón +2 more
doaj +1 more source
Ecological Entomology, Volume 51, Issue 2, Page 221-234, April 2026.The height at which epiphytic bromeliads are found affects the invertebrate community composition within them. The size of epiphytic bromeliads is positively correlated with species richness of both aquatic and terrestrial invertebrates. Whether bromeliads were found in primary or secondary forest did not have a significant effect on the community of ...
Xaali O'Reilly‐Berkeley +6 more
wiley +1 more source
Plan Estratégico para la Diversidad Biológica 2011-2020 [PDF]
, 2010 Hoja de datos del Plan Estratégico para la Diversidad Biológica 2011 ...
Secretaría del Convenio sobre la Diversidad Biológica, Naciones Unidas
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The making of novel ecosystems: A process‐based framework for measurement, analysis and application
Methods in Ecology and Evolution, Volume 17, Issue 3, Page 683-704, March 2026.Abstract Ecological novelty is emerging rapidly due to global change drivers such as climate shifts, species introductions, defaunation, and land‐use transformation. These changes challenge how we assess, understand and manage ecosystems in the Anthropocene.
Matthew R. Kerr +7 more
wiley +1 more source
Beyond species means – the intraspecific contribution to global wood density variation
New Phytologist, Volume 249, Issue 6, Page 2630-2651, March 2026.Summary Wood density is central for estimating vegetation carbon storage and a plant functional trait of great ecological and evolutionary importance. However, the global extent of wood density variation is unclear, especially at the intraspecific level. We assembled the most comprehensive wood density collection to date, including 109 626 records from
Fabian Jörg Fischer +105 more
wiley +1 more source
Journal of Ecology, Volume 114, Issue 2, February 2026.We found a positive, non‐linear, saturating relationship between mainland and island leaf sizes, reflecting an island rule‐like pattern. Small‐leaved mainland species tend to develop larger leaves on islands, while this effect weakens for larger‐leaved species, a pattern consistent across both conspecific and congeneric comparisons. Abstract The island
Xoaquín Moreira +21 more
wiley +1 more source