Results 31 to 40 of about 422 (151)
Macrofungi of the altitudinal gradient, Northern Rocky Mountains [PDF]
Macrofungal communities of four altitudinal zones of the Northern Rocky Mountain region are described and compared with respect to species richness, production (g/100m2/yr), functional structure (mycorrhizal vs. decomposer), seasonality of activity and relationship to temperature and rainfall.
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Freezing tolerance in grasses along an altitudinal gradient in the Venezuelan Andes [PDF]
The tropical high Andes experience greater daily temperature oscillations compared to seasonal ones as well as a high frequency of night frost occurrence year round. Survival of organisms, under such environmental conditions, has been determined by selective forces which have evolved into adaptations including avoidance or tolerance to freezing.
Edjuly J, Márquez +2 more
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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.
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Longitudinal Variation in Riparian Spider Communities Along Near‐Natural Streams
Applying the River Continuum Concept to riparian zones, this study examined how longitudinal gradients in five southwestern German streams affect spider communities. While alpha diversity remained stable, spider abundance increased downstream, and community and trait compositions shifted significantly along the watercourse. These findings highlight how
Léa Fargette +5 more
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Se analizó el patrón de distribución y correlación espacial de las especies arbóreas a lo largo de un gradiente altitudinal en el Área Natural Protegida (ANP) Metzabok, Selva Lacandona, Chiapas.
Facundo Sánchez Gutiérrez +3 more
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Retrospective image analysis for long‐term demography using Google Earth imagery
We demonstrate that high‐resolution Google Earth imagery, combined with minimal field validation, enables retrospective tracking of individual invasive plants. The image shows one of the monitored individuals of Opuntia sp. in Greece. Our approach reveals long‐term demographic patterns, recruitment dynamics, and spatial expansion without continuous ...
Erola Fenollosa +2 more
wiley +1 more source
The Altitudinal Gradient Influence on the Parameters of the Mountain Grasslands
The aim of the paper is to assess the influence of the altitudinal gradient on the quality and biodiversity of grasslands in the mountainous area Muntele Mic. We studied various types of grasslands found at different altitudes as 613, 1342 and 1562 m.
Ionel SAMFIRA +4 more
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Spatial trends of Potamogetonaceae along an altitudinal gradient
Studying the effect of altitude on species distribution may help us to predict the response of species to future climate changes, which will likely cause upward migration of vegetation zones. In this study, we aimed to analyze distribution and abundance patterns of Potamogetonaceae along an altitudinal gradient and to determine the species ...
Nursel İkinci, Necati Bayındır
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Altitudinal gradient effect on morphometric variation and leaf symmetry of Platanus mexicana Moric
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 +4 more
doaj
We demonstrate that environmental filtering is the primary mechanism shaping bat communities across the Cerrado–Atlantic Forest ecotone. By integrating phylogenetic diversity, environmental gradients, and coevolutionary assembly models, our study provides new insights into the processes maintaining biodiversity in a globally important transition zone ...
Daiana Cardoso Silva +2 more
wiley +1 more source

