Results 31 to 40 of about 60,392,320 (192)

Diversification and coexistence amid widespread and persistent gene flow in Andean trees

New Phytologist, EarlyView.
Andean Prunus species diversify into and occupy distinct elevation zones, remaining morphologically distinct. Yet, ancient introgression and recent admixture cross both phylogenetic and ecological distances. This suggests these species function as a long‐lived syngameon rather than fully isolated lineages, which may help explain how tree diversity ...
Ellen J. Quinlan, James B. Pease, Jhonatan Sallo Bravo, Alfredo F. Fuentes, William Farfan‐Rios, Miles R. Silman   +5 more
wiley   +1 more source

Variabilidad morfológica en frutos de una población de tacaco [Sechium tacaco (Pittier) C. Jeffrey] a través del tiempo

Tecnología en Marcha, 2018
Se evaluaron las características morfológicas de los frutos de una población de tacaco en Costa Rica, en dos fechas diferentes: junio de 2013 y setiembre de 2015. Se compararon 10 variables cuantitativas.
José Eladio Monge-Pérez, Michelle Loría-Coto   +1 more
doaj   +1 more source

Land use intensification results in abrupt transitions between extensively and intensively managed grasslands

Functional Ecology, Volume 40, Issue 11, Page 3577-3591, November 2026.
Read the free Plain Language Summary for this article on the Journal blog. Abstract Understanding whether land use intensification causes regime shifts (i.e. persistent, large changes in ecosystem states) is of key importance for management, particularly if these shifts occur abruptly as thresholds in land use intensity are crossed.
Hugo Saiz, Lena Neuenkamp, Caterina Penone, Klaus Birkhofer, Nico Blüthgen, Steffen Boch, Michael Bonkowski, Francois Buscot, María Felipe‐Lucia, Anna Maria Fiore‐Donno, Markus Fischer, Martin Freitag, Oscar Godoy, Kezia Goldmann, Martin Gossner, Ute Hamer, Norbert Hölzel, Kirsten Jung, Ellen Kandeler, Valentin Klaus, Till Kleinebecker, Sophia Leimer, Sven Marhan, Yvonne Oelmann, Jörg Overmann, Daniel Prati, Swen Renner, Matthias Rillig, Sebastian Seibold, Michael Schloter, Ingo Schoening, Johannes Sikorski, Stephanie Socher, Emily Solly, Ingolf Steffan‐Dewenter, Barbara Stempfhuber, Catrin Westphal, Wolfgang Wilcke, Tesfaye Wubet, Susanne Wurst, Eric Allan   +40 more
wiley   +1 more source

EMITS: Expectation–maximization abundance estimation for fungal ITS communities from long‐read sequencing

Methods in Ecology and Evolution, Volume 17, Issue 11, Page 3233-3244, November 2026.
Abstract As long‐read amplicon sequencing becomes routine for fungal metabarcoding, species‐level abundance estimation from ITS amplicons remains limited by naive best‐hit classification. Assigning each read to its single highest‐scoring reference misattributes reads among closely related species that share similar ITS sequences, and divides the reads ...
Aaron O'Brien, Catalina Lagos, Kiara Fernández, Bárbara Ojeda, Pilar Parada   +4 more
wiley   +1 more source

Operaciones de Flujo de Fluidos. Tema 2: Flujo interno de fluidos [PDF]

, 2011
En este tema se desarrollan las principales ecuaciones para manejar el flujo de ...
Salcedo Díaz, Raquel
core  

Operaciones de Flujo de Fluidos. Tema 3: Circulación de fluidos incompresibles [PDF]

, 2011
Apuntes del tema 3 de Operaciones de Flujo de Fluidos. El tema describe el flujo interno de fluidos incompresibles. La primera parte describe el flujo en conducciones cilíndricas, no cilíndricas y redes de conducciones.
Salcedo Díaz, Raquel
core  

Plant genotypic diversity and defoliation jointly shape root exudation, fungal communities, and carbon and nitrogen cycling

New Phytologist, Volume 252, Issue 1, Page 324-339, October 2026.
Experimental design. Summary Intraspecific plant diversity is a major component of community diversity, yet its role in shaping plant–microbial interactions and soil functioning remains poorly understood. In particular, plant genotypic diversity may modulate ecosystem responses to defoliation, a key driver of ecosystem processes in grazed systems.
Irene Cordero, Mathilde Chomel, Ellen L. Fry, Agnès Ardanuy, Ully Kritzler, Hayley Craig, Cristina Heredia‐Acuña, Sarah Worthington, Stênio I. A. Foerster, Richard D. Bardgett, David Johnson, Marina Semchenko   +11 more
wiley   +1 more source

Evaluación del flujo de genes en un complejo silvestre-intermedio-cultivado de Phaseolus lunatus L. para el acervo mesoamericano [PDF]

, 2007
Las poblaciones naturales no están completamente aisladas, sino que exhiben algún grado de flujo de genes. El flujo de genes es la dispersión activa o pasiva de genes vía semillas, polen o partes clónales de la planta dentro del medio ambiente.
Suarez Baron, Harold Geovanny
core   +1 more source

Fetuses exposed to an episode of threatened preterm labor delivered at or near term show signs of cardiac remodeling

Ultrasound in Obstetrics &Gynecology, Volume 68, Issue 3, Page 395-405, September 2026.
ABSTRACT Objective To evaluate whether fetuses exposed to threatened preterm labor (PTL) without intra‐amniotic infection or inflammation (IAI), who were born ≥ 34 weeks' gestation, show signs of cardiac remodeling and dysfunction at admission and 4 weeks after the episode of threatened PTL.
C. Murillo, M. Palacio, C. Rueda, M. Larroya, D. Boada, J. Ponce, M. Guilleumes, O. Gómez, S. Ferrero, E. Gratacós, F. Crispi, T. Cobo   +11 more
wiley   +1 more source

Variabilidad genética del roble común (quercus humboldtii bonpl.) en la región del macizo Colombiano

Biotecnología en el Sector Agropecuario y Agroindustrial, 2012
Los impactos genéticos de la fragmentación de las poblaciones dependen, entre otros factores, del flujo de genes. Con un flujo restringido de genes, la fragmentación aumenta la probabilidad de homocigosis y la pérdida de la diversidad genética.
Gisela Mabel Paz
doaj