Results 21 to 30 of about 223,518 (149)

Variación biológica en las aráceas trepadoras

Acta Botanica Mexicana, 2021
Antecedentes y Objetivos: Las especies de Araceae son conocidas por sus distintas formas de vida; sin embargo, la terminología relacionada con este grupo genera confusiones conceptuales dentro de la comunidad científica.
Alma Patricia Bautista-Bello, Thorsten Krömer, Amparo R. Acebey, Leticia Weichgrebe , Gerhard Zotz   +4 more
doaj   +1 more source

Bacteriome from Pinus arizonica and P. durangensis: Diversity, Comparison of Assemblages, and Overlapping Degree with the Gut Bacterial Community of a Bark Beetle That Kills Pines

Frontiers in Microbiology, 2018
Symbioses between plants and microorganims have been fundamental in the evolution of both groups. The endophytic bacteria associated with conifers have been poorly studied in terms of diversity, ecology, and function. Coniferous trees of the genera Larix,
Roman Gonzalez-Escobedo, Carlos I. Briones-Roblero, Rosa M. Pineda-Mendoza, Flor N. Rivera-Orduña, Gerardo Zúñiga   +4 more
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Válvula aórtica cuadricúspide

Revista Colombiana de Cardiología, 2023
La válvula aórtica cuadricúspide es una anomalía congénita poco común, la cual puede o no acompañarse de otras malformaciones cardiacas, y, en general, es diagnosticada de manera incidental.
Diego Posada-Ríos, Alejandro Ramírez-Moreno, Juan C. Jaramillo-González, Ricardo Zambrano-Vesga, Camila Franco-Mesa   +4 more
doaj   +1 more source

Toward a Biocultural Synthesis of the Peopling of the Americas: Introduction to the Special Issue. [PDF]

Am J Biol Anthropol
ABSTRACT This article introduces the special issue Toward a Biocultural Synthesis of the Peopling of the Americas, which brings together contributions that explore the origins and diversity of Indigenous populations across North, Central, and South America and the Caribbean. The volume grew out of an invited symposium held at the 90th Annual Meeting of
Menéndez LP, Hubbe M.
europepmc   +2 more sources

Recovering European River Invertebrate Communities Homogenize or Differentiate Depending on Anthropogenic Stress. [PDF]

Glob Chang Biol
(a) European river invertebrate communities showed an average increase in local richness over time (1994–2023), indicating partial local recovery following the alleviation of anthropogenic stress (e.g., point‐source pollution). However, this local recovery was not accompanied by increases in β‐diversity, likely due to persistent, unaddressed stressors,
Cortés-Guzmán D, Bowler DE, Forio MAE, Goethals P, Karaouzas I, Moulinec A, Sinclair JS, Vannevel R, Haase P, Welti EAR.   +9 more
europepmc   +2 more sources

The role of environmental heterogeneity in the diversity of the amphibian fauna of the Transmexican Volcanic Belt [PDF]

Neotropical Biology and Conservation
Mexico’s complex topography, variety of climates, geological history, and geographic position combine to produce heterogeneity in the amphibian fauna of biogeographic regions such as the Transmexican Volcanic Belt (TVB), a physiographic province with a ...
Jessica Gómora-Cercas, Norberto Martínez-Méndez, Aníbal Díaz de la Vega-Pérez, Omar Mejía   +3 more
doaj   +3 more sources

¿Debemos adaptarnos los laboratorios clínicos a la realidad del paciente con enfermedad renal crónica en la cuantificación de la hormona paratiroidea?

Advances in Laboratory Medicine, 2021
La aportación del Laboratorio Clínico en el ámbito diagnóstico es cada día mas importante porque gran parte de las decisiones clínicas que se adoptan se basan en nuestros resultados.
González-Casaus María Luisa, Fernández-Calle Pilar, Buño Soto Antonio   +2 more
doaj   +1 more source

Cryptic Species Discrimination in Western Pine Beetle, Dendroctonus brevicomis LeConte (Curculionidae: Scolytinae), Based on Morphological Characters and Geometric Morphometrics

Insects, 2019
The western pine beetle (WPB), Dendroctonus brevicomis LeConte, is a major mortality agent of pines in North America. A total of 706 adults of WPB from 81 geographical sites were analyzed with traditional and geometric morphometric methods to evaluate ...
Osiris Valerio-Mendoza, Jazmín García-Román, Moises Becerril, Francisco Armendáriz-Toledano, Gerardo Cuéllar-Rodríguez, José F. Negrón, Brian T. Sullivan, Gerardo Zúñiga   +7 more
doaj   +1 more source

Variabilidad biológica intra e interindividual de calcio total, urea y creatinina en pacientes adultos con insuficiencia renal crónica prediálisis y postdiálisis

REV SEN, 2022
Introducción: La variabilidad intra e inter-individual del calcio, la urea y creatinina en pacientes de hemodiálisis depende del estado nutricional y de la remoción que produce el tratamiento de hemodiálisis.
Cristina Paola Vernaza Guerra, Lourdes Alicia Pazmiño Martínez   +1 more
doaj   +1 more source

Comparative metabarcoding and biodiversity of gut-associated fungal assemblages of Dendroctonus species (Curculionidae: Scolytinae)

Frontiers in Microbiology
The genus Dendroctonus is a Holarctic taxon composed of 21 nominal species; some of these species are well known in the world as disturbance agents of forest ecosystems.
Rosa María Pineda-Mendoza, Jorge Luis Gutiérrez-Ávila, Kevin F. Salazar, Flor N. Rivera-Orduña, Thomas S. Davis, Gerardo Zúñiga   +5 more
doaj   +1 more source