Results 31 to 40 of about 422 (151)

Macrofungi of the altitudinal gradient, Northern Rocky Mountains [PDF]

open access: yes, 2021
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.
openaire   +1 more source

Freezing tolerance in grasses along an altitudinal gradient in the Venezuelan Andes [PDF]

open access: yesOecologia, 2006
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
openaire   +2 more sources

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

open access: yesBotan‪ical 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

Longitudinal Variation in Riparian Spider Communities Along Near‐Natural Streams

open access: yesEcology and Evolution, Volume 16, Issue 10, October 2026.
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
wiley   +1 more source

Distribución y correlación espacial de especies arbóreas por gradiente altitudinal en la Selva Lacandona, Chiapas

open access: yesRevista Mexicana de Ciencias Forestales, 2019
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
doaj   +1 more source

Retrospective image analysis for long‐term demography using Google Earth imagery

open access: yesRemote Sensing in Ecology and Conservation, Volume 12, Issue 5, Page 816-831, October 2026.
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

open access: yesBulletin of University of Agricultural Sciences and Veterinary Medicine Cluj-Napoca. Agriculture, 2012
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
openaire   +2 more sources

Spatial trends of Potamogetonaceae along an altitudinal gradient

open access: yesBiologia, 2020
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
openaire   +2 more sources

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

open access: yesRevista 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   +4 more
doaj  

Bat community assembly in the ecotone of two neotropical biodiversity hotspots is determined by environmental filtering rather than historical factors

open access: yesJournal of Animal Ecology, Volume 95, Issue 10, Page 2050-2062, October 2026.
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

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