Results 81 to 90 of about 973 (211)

Análisis de áreas deforestadas en la región centro-norte de la Sierra Madre Occidental, Chihuahua, México

Tecnociencia Chihuahua, 2018
La creciente demanda de productos y satisfactores de origen maderable requiere de información actualizada respecto a la condición y posibles cambios en uso del suelo y vegetación.
Carmelo Pinedo Álvarez, Alfredo Pinedo Álvarez, Rey Manuel Quintana, Martín Martínez Salvador   +3 more
doaj   +1 more source

Elevation shapes alpine snow algal blooms and their influence on albedo reduction

New Phytologist, EarlyView.
Graphical summary of elevational trends in Sanguina‐dominated snow algal blooms. Increasing elevation was associated with larger cells, lower Chla content per cell, higher astaxanthin ratios, lower snow water content, and reduced cell‐normalized albedo, whereas algal cell density showed no consistent elevational trend.
Pablo Almela, Scott Hotaling, J. Joseph Giersch, Helena C. L. Klip, James J. Elser, Trinity L. Hamilton   +5 more
wiley   +1 more source

Which, when, and where traits matter: functional trait‐mediated species associations shift with microenvironmental and climatic variation

New Phytologist, EarlyView.
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
Ezequiel Antorán, Joaquín Calatayud, Ana L. Peralta, Adrián Escudero, Ana M. Sánchez, Arantzazu L. Luzuriaga, Marcelino de la Cruz   +6 more
wiley   +1 more source

Metodología para investigar tendencias espacio-temporales en eventos meteorológicos extremos: caso Durango, México

Tecnología y ciencias del agua, 2014
Se propone una metodología basada en la teoría de valores extremos para investigar cambios espacio temporales en la tendencia a largo plazo de las variables meteorológicas precipitación y temperatura.
Ma. Esperanza Blanco, Humberto Vaquera, José A. Villaseñor, J. René Valdez Lazalde, Michel Rosengaus   +4 more
doaj  

Los impactos de la regeneración urbana: cambios temporales en áreas experimentales y equivalentes

, 2015
Para estudiar el impacto de los proyectos de regeneración urbana trataremos de mostrar evidencias sobre el cambio habido en los barrios donde éstos se han desarrollado frente a otros, similares, donde no ha existido intervención o esta ha alcanzado unos niveles mucho más bajos; esto es, nuestras áreas experimentales y equivalentes, tal y como han sido ...
Navarro, Clemente J., Guerrero Panal, Gerardo, Moya Alfonso, Rafael   +2 more
openaire   +1 more source

Ibero‐Balearic plant disjunctions: genomic support for rapid and recurrent long‐distance colonizations of the endangered Diplotaxis ibicensis (Brassicaceae) despite no dispersal syndromes

Plant Biology, EarlyView.
Genotyping‐by‐sequencing data reveal six well‐defined clades in the endangered Diplotaxis ibicensis, endemic to the western Mediterranean Basin and indicate rapid and recurrent long‐distance colonisations across the Balearic Islands and the eastern Iberian coast despite the absence of dispersal syndromes.
L. Bezares, M. Fernández‐Mazuecos, E. Cano, J. Borràs, J. Cerca, J. Cursach, P. Vargas   +6 more
wiley   +1 more source

Garden, greenhouse, or climate chamber? Experimental conditions influence whether genetic differences are phenotypically expressed

Plant Biology, EarlyView.
Expression of genetic differences depends on the experimental environment as seen in flowering time differences between ancestors and descendants that emerge in climate chambers but not in greenhouse or garden conditions. Abstract Common‐environment experiments are important to study genetically based phenotypic variation within and among plant ...
P. Karitter, M. March‐Salas, A. Ensslin, R. Rauschkolb, S. Godefroid, H. Poorter, J. F. Scheepens   +6 more
wiley   +1 more source

Estructura y dinámica del fitoepifiton en cuerpos de agua temporarios del cinturón hortícola platense

Biología Acuática, 2019
El cinturón hortícola de La Plata es un complejo marco de tierras con una marcada influencia urbana. El uso no regulado de agroquímicos es una de las fuentes más importantes de contaminación de aguas superficiales y subterráneas que produce cambios ...
Micaela Medina, Lía Cristina Solari, María Gabriela Agostini   +2 more
doaj  

There Is Always a Bigger Fish. Determinants of Power Perceptions in Swiss Biodiversity Policy

Policy Studies Journal, EarlyView.
ABSTRACT The Advocacy Coalition Framework (ACF) views power as crucial in policy processes, but the nature of coalition power, its determinants, and how to empirically measure it remain understudied. In this article, we use a mixed method approach and social network analysis to explore power relationships in the biodiversity policy subsystem in ...
Alix d'Agostino, Jascha Egli, Daniel Kübler   +2 more
wiley   +1 more source

Designing Integrated Policies for the Twin Transition: Challenges and Tradeoffs

Policy Studies Journal, EarlyView.
ABSTRACT Democratic governance faces the intertwined imperatives of managing the transformative risks and opportunities of digitalization, particularly stemming from artificial intelligence (AI), while achieving environmental sustainability within planetary boundaries.
Martino Maggetti
wiley   +1 more source