Results 91 to 100 of about 1,551 (166)

Patterns of Interploidy Admixture in Polyploid Complexes: Insights From Thymus Sect. Mastichina (Lamiaceae)

open access: yesMolecular Ecology, Volume 35, Issue 3, February 2026.
ABSTRACT Understanding gene flow between ploidy levels in polyploid complexes is essential for species delimitation and conservation. This study explores evolutionary dynamics in the polyploid complex Thymus sect. Mastichina (Lamiaceae), comprising three taxa: T. mastichina subsp. mastichina, T. mastichina subsp.
Francisco José García‐Cárdenas   +7 more
wiley   +1 more source

Fine‐tuning the buzz: comparing visitation frequency and pollination effectiveness in plant–pollinator networks

open access: yesNew Phytologist, Volume 249, Issue 4, Page 2140-2152, February 2026.
Summary Ecological network approaches have advanced our understanding of how species interactions influence community and evolutionary dynamics. However, a key limitation is that most network analyses rely solely on visitation data, often overlooking functional aspects of interactions.
Lorena B. Valadão‐Mendes   +4 more
wiley   +1 more source

The frequency and importance of polyploidy in tropical rainforest tree radiations

open access: yesNew Phytologist, Volume 249, Issue 4, Page 2103-2114, February 2026.
Summary The presence of more than two copies of the genome in an organism, termed ‘polyploidy’, is a crucial force in plant evolution, generating genetic, phenotypic and ecological diversity. [Correction added on 22 January 2026, after first online publication: the preceding sentence has been corrected.] The Amazonian tree flora is the most species ...
Rowan J. Schley   +9 more
wiley   +1 more source

Modelo decisional proactivo en sistemas ecológicos (modepec).

open access: yesIngenieria Industrial, 2007
Los sistemas económicos y sociales son de tipo ecológico, y se pueden enmarcar en modelos de sistemas complejos de tipo DYSES (Dynamic Social and Economic Systems).
Pedro Tolón Estarelles, Jorge Sagula
doaj  

Efectos de los sistemas de manejo en el estado físico de un suelo arenoso (Yermosol Háplico) de una Zona Árida de Baja California Sur, México

open access: yesRevista Ciencias Técnicas Agropecuarias, 2007
Durante el periodo comprendido 2001-2003 en un suelo Yermosol Háplico en barbecho prolongado, se condujo una investigación con el objetivo de evaluar el efecto de diferentes sistemas de manejo sobre el estado físico del suelo.
Francisco Higinio Ruiz Espinoza   +4 more
doaj  

Marketing ecológico como estrategia para mejorar la percepción sobre la minería del carbón en la región zuliana

open access: yesCiencia e Ingeniería, 2017
El presente artículo tiene por objetivo analizar el marketing ecológico como estrategia para mejorar la percepción sobre la minería del carbón en la región zuliana, bajo la fundamentación teórica de Calomarde (2000), Vicente y Ruiz (2002), Lorenzo (2002),
Danny López Juvinao, Fabio Moya Camacho
doaj  

[Nutrition with a planetary health perspective: Strategies for Primary Health Care]. [PDF]

open access: yesAten Primaria
Bellido Izquierdo P   +3 more
europepmc   +1 more source

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