Results 11 to 20 of about 223,518 (149)
A lo largo de los años se han publicado numerosos artículos sobre variación biológica (VB) de diferente calidad. Los objetivos de este trabajo fueron realizar una revisión sistemática y una evaluación crítica de los estudios de VB para albúmina ...
Ricós Carmen +15 more
doaj +2 more sources
Análisis de Procrustes y el estudio de la variación morfológica
El estudio de la variación morfológica ha ocupado un lugar central en la antropología, así como en el resto de las ciencias naturales, a partir de su surgimiento en el siglo XVIII.
Torcida, Sebastián +1 more
doaj +4 more sources
Antropología biológica y neurociencias: los estudios del cerebro en el linaje humano [PDF]
El estudio de las propiedades estructurales y funcionales del cerebro en Homo sapiens, así como en otros primates no-humanos, constituye un tema fundante en la tradición de investigación de la antropología biológica.
Paula Natalia González +5 more
doaj +2 more sources
Molecular clocks, biogeography and species diversity in Herichthys with evaluation of the role of Punta del Morro as a vicariant brake along the Mexican Transition Zone in the context of local and global time frame of cichlid diversification [PDF]
Using molecular dated phylogenies and biogeographic reconstructions, the species diversity, biogeography and time frame of evolution of the genus Herichthys were evaluated.
Fabian Pérez-Miranda +3 more
doaj +2 more sources
Which, when, and where traits matter: functional trait-mediated species associations shift with microenvironmental and climatic variation. [PDF]
Community‐level fitted relationship between spatial association Lij and trait dissimilarity (tDij) at the fine spatial scale (r = 40 mm; where r represents the radius around individuals of the focal species). Summary Predicting coexistence in species‐rich plant communities requires understanding the role of functional traits in species interactions and
Antorán E +6 more
europepmc +2 more sources
Dendroctonus-bark beetles are natural components and key ecological agents of coniferous forests. They spend most of their lives under the bark, where they are exposed to highly toxic terpenes present in the oleoresin.
J. Manuel Quijano-Barraza +5 more
doaj +1 more source
Dendroctonus-bark beetles are associated with microbes that can detoxify terpenes, degrade complex molecules, supplement and recycle nutrients, fix nitrogen, produce semiochemicals, and regulate ecological interactions between microbes.
Karina Vazquez-Ortiz +6 more
doaj +1 more source
Dendroctonus bark beetles are the most destructive agents in coniferous forests. These beetles come into contact with the toxic compounds of their host's chemical defenses throughout their life cycle, some of which are also used by the insects as ...
Verónica Torres-Banda +5 more
doaj +1 more source
Rahnella sp. ChDrAdgB13 is a dominant member of the gut bacterial core of species of the genus Dendroctonus, which is one of the most destructive pine forest bark beetles. The objectives of this study were identified in Rahnella sp. ChDrAdgB13 genome the
Rosa María Pineda-Mendoza +7 more
doaj +1 more source
Crisis epilépticas en niños con síndrome de Dravet en condiciones de calor extremo: estudio cualitativo de la perspectiva de los progenitores. [PDF]
Resumen Objetivo Describir la experiencia de progenitores de niños y adolescentes con síndrome de Dravet en relación con el impacto de las olas de calor o las altas temperaturas ambientales en las crisis epilépticas de sus hijos, así como las estrategias de afrontamiento empleadas.
Aledo-Serrano A +8 more
europepmc +2 more sources

