Results 31 to 40 of about 51,928 (125)

Biología de poblaciones silvestres y cultivadas de Phaseolus coccineus L: I. Relaciones planta-polinizador

Botan‪ical Sciences, 1980
Se estudia la biología floral de poblaciones silvestres y cultivadas de Phaseolus coccineus L. situadas a lo largo de un gradiente altitudinal (2,200-3,000 msnm.) que comprende variadas condiciones medioambientales, encontrándose que en las poblaciones ...
Alberto Burquez, José Sarukhán-K.
doaj   +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

Altitudinal gradient effect on morphometric variation and leaf symmetry of Platanus mexicana Moric

Revista Chapingo: Serie Ciencias Forestales y del Ambiente, 2015
La variación morfométrica y simetría foliar de una población de Platanus mexicana se caracterizaron en un gradiente altitudinal ripario del estado de Veracruz.
Dulce Ma. Galván-Hernández, J. Armando Lozada-García, Norma Flores-Estévez, Jorge Galindo-González, S. Mario Vázquez-Torres   +4 more
doaj  

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

Tree canopy shapes the survival of oak and beech saplings during the regeneration stage along an elevation‐driven temperature gradient

Journal of Ecology, Volume 114, Issue 7, July 2026.
Forests are complex, multilayered systems in which canopy cover strongly influences understorey microclimates. Here, we show that the temperature‐buffering effect of the forest canopy affects tree regeneration differently among species along an elevation gradient in the French Pyrenees.
Benjamin Roux, Yann Vitasse, Sylvain Delzon, Thomas Caignard, Richard Michalet   +4 more
wiley   +1 more source

Landscape forest cover, not edge contrast, modulates edge effects on palm diversity

Journal of Applied Ecology, Volume 63, Issue 6, June 2026.
Our findings demonstrate that landscape forest cover plays a critical role in modulating edge effects in plant communities in our study system, but not all woody crops systems provide buffering benefits, as cacao plantations in our study failed to soften edge effects.
Alma L. Trujillo‐Miranda, Abraham Tame‐Ibáñez, David Cantos, Jordan Karubian, Luke Browne, Nelson González, Rakan A. Zahawi, Liza S. Comita   +7 more
wiley   +1 more source

Anuros del gradiente altitudinal de la estación experimetal y demostrativa el rasgón (santander, colombia) [PDF]

, 2004
Se caracterizó la fauna de anuros sobre un gradiente altitudinal de 2200 a 3200 mabarcando tres formaciones vegetales, Selva Andina, Bosque Altoandino ySubpáramo, sobre la cordillera Oriental colombiana.
SUÁREZ-BADILLO, HENRY A., Suárez Badillo, Henry A., Ramírez Pinilla, Martha Patricia, RAMÍREZ-PINILLA, MARTHA PATRICIA   +3 more
core  

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
doaj  

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

Management of dry calcareous grasslands drives pollinator communities through availability of key forage plants

Journal of Applied Ecology, Volume 63, Issue 6, June 2026.
Pollinator conservation in calcareous grasslands should prioritize enhancing local patch quality while promoting landscape heterogeneity, including woody SNH. To improve forage quality, our analytical approach supports targeted grassland management in selecting key forage plants, promoting complementary and diverse floral assemblages that support ...
Gabrielle McLaughlin, Anina Knauer, Matthias Albrecht   +2 more
wiley   +1 more source