Results 61 to 70 of about 422 (151)

A multi‐network approach to assess how physical templates shape stream fish ecological strategies

open access: yesEcological Solutions and Evidence, Volume 7, Issue 2, April–June 2026.
This multi‐network framework identifies a continuous topological gradient of fish ecological strategies—comprising Dispersal Gateways, Integrated Connectors, and Mass Effect Dominated species—within the dendritic river template. The functional role of stream reaches is scale‐sensitive, particularly at headwater extremes where sites operate as critical ...
Mauricio Cetra, Rodrigo da Silva Almeida
wiley   +1 more source

Morfología y anatomía foliar de Argyrochosma nivea (Poir.) Windham var. nivea (Pteridaceae) en un gradiente altitudinal en el noroeste argentino

open access: yesLilloa, 2005
Hernández Marcela, Patricia Albornoz, María Eugenia Guantay y Omar Varela. 2005. Morfología y anatomía foliar de Argyrochosma nivea (Poir.) Windham var. nivea (Pteridaceae) en un gradiente altitudinal en el noroeste argentino. Lilloa 42 (1-2).
Marcela Hernández   +3 more
doaj  

Unravelling the spatial and temporal variability of natural disturbances in European forests

open access: yesJournal of Applied Ecology, Volume 63, Issue 4, April 2026.
The heterogeneity of natural disturbance patterns and high temporal variability across European Forest suggest the need of adopting context‐dependent management strategies tailored to both the dominant disturbance agent and local environmental conditions, particularly in the most vulnerable regions, such as the Iberian Peninsula—with large and frequent
Sofia Miguel   +5 more
wiley   +1 more source

Distribution of grasses along an altitudinal gradient in a Venezuelan paramo Distribución de gramíneas a lo largo de un gradiente altitudinal en un páramo de Venezuela

open access: yesRevista Chilena de Historia Natural, 2004
In Venezuelan paramos grasses, after Asteraceae, are the second family in numerical importance. We studied their distribution in an altitudinal gradient located in Venezuela, Sierra de La Culata, between 2,500 and 4,200 m of altitude.
EDJULY J. MÁRQUEZ   +3 more
doaj  

Estructura de la comunidad de pequeños mamíferos en un gradiente altitudinal, Reserva Río Blanco, Manizales, Caldas, Colombia

open access: yesActa Biológica Colombiana, 2004
Se estudió la estructura de la comunidad de pequeños mamíferos no voladores en tres estaciones (2.500, 3.000 y 3.500 msnm) en el gradiente altitudinal de la Reserva Río Blanco (Caldas), en la vertiente occidental de la Cordillera Central colombiana.
Bibiana Gómez Valencia   +2 more
doaj  

Century‐long trends in plant diversity of temperate mountain vegetation are modulated along elevation gradient

open access: yesJournal of Ecology, Volume 114, Issue 3, March 2026.
Resurvey studies in mountain forests of the Tatra Mountains (Central Europe) show that plant diversity has increased over the past century, particularly at lower elevations. These shifts were associated more with increased nitrogen deposition and reduced grazing pressure than with direct climate warming.
Kacper Foremnik   +5 more
wiley   +1 more source

Asymmetrical local adaptation of maize landraces along an altitudinal gradient

open access: yesEvolutionary Applications, 2008
AbstractCrop landraces are managed populations that evolve in response to gene flow and selection. Cross‐pollination among fields, seed sharing by farmers, and selection by management and environmental conditions play roles in shaping crop characteristics. We used common gardens to explore the local adaptation of maize (Zea mays ssp.
Mercer, Kristin   +2 more
openaire   +2 more sources

RELACIONES ENTRE COMUNIDADES ARBÓREAS, SUELO Y EL GRADIENTE ALTITUDINAL EN EL VOLCÁN DE TEQUILA, JALISCO

open access: yesRevista Mexicana de Ciencias Forestales, 2018
Los estudios cuantitativos acerca de la vegetación en México se han centrado en bosques tropicales y mesófilos de montaña; comparativamente, los existentes sobre bosques templados son relativamente escasos.
Francisco Martín Huerta Martínez   +4 more
doaj   +1 more source

Growth of European Beech Across Altitudinal and Climatic Gradients

open access: yes
Abstract.
Bončina, Andrej   +3 more
openaire   +2 more sources

Fauna Characterization of the Order Lepidoptera (Rhopalocera) in Five Different of Localities of the Colombian Llanos Orientales

open access: yesActa Biológica Colombiana, 2006
In the study authors made an analysis in the variance of richness, composition and abundance in the butterfly community of five locations in colombian llanos orientales distributed like this: Locations San Antonio (500 mosl), Cafam (200 mosl) and Con ...
Natalia Fraija Fernández   +1 more
doaj  

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