Results 41 to 50 of about 422 (151)

Análisis de las poblaciones de briófitos y líquenes en el gradiente altitudinal de una carretera en Cundinamarca, Colombia

Acta Biológica Colombiana, 2006
En una carretera, a lo largo de un gradiente altitudinal, en Cundinamarca, Colombia, se estudiaron musgos asociados a sustratos de concreto, encontrando dos tipos de zonación, una asociada a ambientes generados por el borde de la carretera “Zonación ...
María Ximena Hernández Vanegas, Édgar L. Linares   +1 more
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Contrastive ecoacoustic indices: Large‐scale global soundscape characterization with contrastive inference

Methods in Ecology and Evolution, Volume 17, Issue 9, Page 2663-2682, September 2026.
Abstract Ecoacoustics mainly aims at monitoring soundscapes by means of non‐invasive protocols. Despite the widespread adoption of machine and deep learning techniques, existing ecoacoustic models predominantly rely on supervised learning and, consequently, face two primary limitations: (1) the necessity of annotated data; and (2) the restriction to ...
Yann Teytaut, Sylvain Haupert, Lorenzo Dubois, Ludovic Crochard, Frédéric Azémar, Ángel G. Guevara, Patricia Balaresque, Jérôme Sueur   +7 more
wiley   +1 more source

Climate and Spatially Heterogeneous Abiotic Site Constraints Shape Temperate Tree Species Abundance at Northern Range Limits

Journal of Biogeography, Volume 53, Issue 9, September 2026.
ABSTRACT Aim Northern populations of temperate tree species evolve under climatic, topographic and edaphic conditions that approach the limits of their ecological tolerance. However, the environmental constraints acting on species abundance are not spatially uniform, and their relative importance can shift markedly from core to northern populations. We
Maxence Soubeyrand, Fabio Gennaretti, Pierre Grondin, Yves Bergeron, Marie‐Hélène Brice   +4 more
wiley   +1 more source

Widespread phenotypic and genetic divergence along altitudinal gradients in animals [PDF]

Journal of Evolutionary Biology, 2013
AbstractAltitudinal gradients offer valuable study systems to investigate how adaptive genetic diversity is distributed within and between natural populations and which factors promote or prevent adaptive differentiation. The environmental clines along altitudinal gradients tend to be steep relative to the dispersal distance of many organisms ...
Keller, I., Alexander, J.M., Holderegger, R., Edwards, P.J.   +3 more
openaire   +5 more sources

Respuestas al déficit hídrico estacional en dos especies de Piper creciendo a lo largo de un gradiente altitudinal en la Sierra de San Javier (Tucumán, Argentina)

Lilloa, 2010
Cantero, E. A.; J. A. González; F. E. Prado. “Respuestas al déficit hídrico estacional en dos especies de Piper creciendo a lo largo de un gradiente altitudinal en la Sierra de San Javier (Tucumán, Argentina)”. Lilloa 47 (1-2).
E. A. Cantero, J. A. González, F. E. Prado   +2 more
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Ephemeroptera (Insecta) en un gradiente altitudinal de la región andino-amazónica colombiana: validación de una regla de Rapoport

Revista de la Academia Colombiana de Ciencias Exactas, Físicas y Naturales
La región andino-amazónica del departamento de Caquetá,  Colombia, es reconocida por su alta biodiversidad de especies y gran variedad de ecosistemas acuáticos.
Jhonatan Gutiérrez-Garaviz, Odete Rocha, Marlon Peláez-Rodríguez, Oscar Agredo-Jiménez   +3 more
doaj   +1 more source

Actividad metabólica de los sedimentos en un gradiente altitudinal de un río tropical de montaña durante eventos de sequía, Sierra Nevada de Santa Marta - Colombia

Intropica, 2012
En el presente estudio, se realizan medidas de la actividad metabólica del sustrato sedimentos (SED) en un gradiente altitudinal de un río tropical de montaña (Sierra Nevada de Santa Marta-Colombia) con el fin de establecer su relación con variables ...
Gilberto Orozco-Berdugo, Javier Rodríguez-Barrios, Rodulfo Ospina-Torres   +2 more
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Reciprocal relations shape cultural landscapes: Women's environmental stewardship in Ait Bouguemez (High Atlas, Morocco)

People and Nature, Volume 8, Issue 8, Page 2847-2865, August 2026.
Abstract Mountain social–ecological systems encompass steep ecological gradients and diverse cultural practices, yet the relative roles of these factors in shaping mountain landscapes remain underexplored. In particular, the knowledge and practices of women in coproducing biocultural landscapes are often invisible in the academic literature. In the Ait
Meryem Aakairi, Sara Elgadi, Hamza Zine, Christel Vidaller, Mohamed Cherkaoui, Emmanuel Corcket, Irene Teixidor‐Toneu   +6 more
wiley   +1 more source

Orchid diversity along an altitudinal gradient in the central Balkans

Frontiers in Ecology and Evolution, 2022
Understanding patterns of species diversity along an altitudinal gradient is the major topic of much biogeographical and ecological research. The aim of this study was to explore how richness and density of orchid species and subspecies in terms of different categories of underground organ systems and pollination systems vary along an altitudinal ...
Vladan Djordjević, Spyros Tsiftsis, Pavel Kindlmann, Vladimir Stevanović, Vladimir Stevanović   +4 more
openaire   +3 more sources

PATRONES DE RIQUEZA Y DIVERSIDAD DE ESPECIES VEGETALES EN UN GRADIENTE ALTITUDINAL EN GUERRERO, MÉXICO

Polibotánica, 2018
El área de estudio abarca localidades del Cañón del Zopilote y Carrizal de Bravo, pertenecientes a la cuenca del río Balsas, Guerrero, México. El trabajo de campo se desarrolló de marzo de 2011 a marzo de 2013.
JAVIER JIMENEZ
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