Results 11 to 20 of about 214,533 (163)

The frequency and importance of polyploidy in tropical rainforest tree radiations. [PDF]

New Phytol
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 ...
Schley RJ, Piñeiro R, Nicholls JA, Gaynor ML, Lewis GP, Fonseca Pezzini F, Dexter KG, Kidner C, Pennington RT, Twyford AD.   +9 more
europepmc   +2 more sources

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

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

Mol Ecol
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.
García-Cárdenas FJ, Ortiz MÁ, Del Valle JC, Doblas-Pruvost D, de la Estrella M, Nieto-Lugilde D, Pokorny L, Berjano R.   +7 more
europepmc   +2 more sources

Spatiotemporal Dynamics of Non-Ecological Speciation in Rubyspot Damselflies (Hetaerina spp.). [PDF]

Mol Ecol
ABSTRACT Non‐ecological speciation is a common mode of speciation, which occurs when allopatric lineages diverge in the absence of pronounced ecological differences. Yet, relative to other speciation mechanisms, non‐ecological speciation remains understudied.
Patterson C, Brennan A, Cowling H, González-Rodríguez A, Grether GF, Mendoza Cuenca L, Springer M, Vega-Sánchez YM, Drury J.   +8 more
europepmc   +2 more sources

Migración laboral internacional, barbecho, diversificación económica y tecnología en Nepal

Revista Internacional del Trabajo, Volume 142, Issue 4, Page 753-782, December 2023., 2023
Resumen Se investiga el efecto de la migración laboral internacional en la práctica del barbecho, la adopción de tecnologías de intensificación agrícola y la diversificación de medios de subsistencia en Nepal. Aplicando métodos empíricos que admiten inferencias causales a datos nacionales representativos, se observa que la probabilidad de tener tierras
Apsara KARKI NEPAL, Mani NEPAL, Randall BLUFFSTONE   +2 more
wiley   +1 more source

Interplay of diet and sympatry in the morphological evolution of noctilionoid bats

Journal of Biogeography, Volume 50, Issue 12, Page 2084-2094, December 2023., 2023
Abstract Aim The remarkable ecomorphological diversity of the bat superfamily Noctilionoidea is the result of a diet‐mediated adaptive radiation. Stemming from a putatively insectivorous ancestor, noctilionoid bats diversified to adapt to the widest range of dietary ecologies among mammals.
Camilo López‐Aguirre, John M. Ratcliffe, Mary T. Silcox   +2 more
wiley   +1 more source

Diversificación de la composición oficial de las reservas internacionales de divisas (2016-2022)

Política Internacional, 2023
La evolución del Sistema Monetario Internacional hacia la multipolaridad ha sido un proceso gradual que se ha desarrollado gracias a los avances en ciencia y tecnología en las finanzas, los cambios en la correlación de fuerzas en las relaciones ...
María Fernanda Benítez Pena
doaj  

La complementariedad litoral-interior en el marco de la renovación de destinos turísticos consolidados: el excursionismo organizado como elemento de relación

Cuadernos de Turismo, 2016
La complementariedad entre el litoral y el interior es una de las líneas de actuación habitualmente incluidas entre las estrategias orientadas a la renovación de destinos turísticos consolidados del litoral.
Carlos Baños Castiñeira, Elisa Rico Cánovas   +1 more
doaj   +1 more source

Diversificación de la actividad turística de balnearios: el caso de Pehuén Co, Argentina

Cuadernos de Turismo, 2016
Para desarrollar un Manejo Integral Costero (MIC) de localidades turísticas es necesario identificar posibles alternativas que ayuden a diversificar su turismo.
María Luján Bustos, Federico Ferrelli, María Cintia Piccolo   +2 more
doaj   +1 more source

Understanding the local livelihood system in reosurce management: the pelagic longline fishery in Gouyaye, Grenada [PDF]

, 2007
There is a need to include social objectives in fisheries management, and this paper focuses on one set of social considerations, those regarding livelihood.
Berkes, F., Brierley, J., Grant, S.
core   +4 more sources