Results 151 to 160 of about 10,366 (173)

Altitudinal Gradients of Soil Temperatures in Europe

Transactions of the Institute of British Geographers, 1980
The altitudinal gradient of soil temperature is examined with the aid of observations from ten countries in Europe. It is shown that this altitudinal gradient is always greatest in summer and least in winter, and that only the amplitude of the seasonal variation differs from one region to another.
F. H. W. Green, R. J. Harding
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Cytogenetic Characteristics of Four Gymnocalycium (Cactaceae) Species along Altitudinal Gradients

Haseltonia, 2023
Fil: Bauk, Karen. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Córdoba. Instituto Multidisciplinario de Biología Vegetal. Universidad Nacional de Córdoba. Facultad de Ciencias Exactas Físicas y Naturales.
Bauk, Karen, Gurvich, Diego Ezequiel, Las Peñas, Maria Laura   +2 more
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Stomatal Frequency Change Over Altitudinal Gradients: Prospects for Paleoaltimetry

Reviews in Mineralogy and Geochemistry, 2007
Recently, a novel paleoaltimetry method was presented using leaf stomatal frequency response to the decline in CO 2 partial pressure with altitude, and tested on California black oak ( Quercus kelloggii ) (McElwain 2004). Here, we present new data detailing the influence of other climatic variables on leaf stomatal frequency change with altitude in ...
Kouwenberg, L.L.R., Kürschner, W.M., McElwain, J.C.   +2 more
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Subtropical rainforest turnover along an altitudinal gradient

2011
(Uploaded by Plazi from the Biodiversity Heritage Library) No abstract provided.
Laidlaw, Melinda J, McDonald, W. J. F., Hunter, R John, Kitching, Roger L   +3 more
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Amino acid dynamics across a grassland altitudinal gradient

Soil Biology and Biochemistry, 2014
Amino acids (AAs) have been the focus of an increasing amount of research in relation to nitrogen fluxes in soils. We use five temperate grassland sites across an altitudinal gradient to establish relationships between soil properties and the size of individual AA pools and their mineralisation rate.
Mark Farrell, Lynne M. Macdonald, Paul W. Hill, Sudas D. Wanniarachchi, John Farrar, Richard D. Bardgett, Davey L. Jones   +6 more
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[Heat transfer, convection and altitudinal gradient].

Archivos de biologia y medicina experimentales, 1996
Measurements of heat loss from fur covered aluminium cylinders were made under barometric pressures ranging from 760 to 368 torr (sea level up to 5.8 km, simulated altitudes). Heat transfer diminished at high altitudes and a relative greater diminution was observed when forced convection was applied.
F, Bozinovic, M, Rosenmann, G, Ruiz
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Phenology Patterns Across a Rupestrian Grassland Altitudinal Gradient

2016
Phenology is the study of recurrent biological events in the life cycle of organisms. For plants, reproductive events such as flowering and fruiting are critical stages in their life cycles, which also greatly affect other organisms depending on these resources.
Rocha, Nathália Miranda Walter Bretas, Carstensen, Daniel Wisbech, Fernandes, Geraldo Wilson, Le Stradic, Soizig, Buisson, Elise, Morellato, Leonor Patrícia Cerdeira   +5 more
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Altitudinal Gradients in Mycorrhizal Symbioses

2017
Mountains, due to their often steep gradients in abiotic and biotic factors, offer an ideal setting to improve our understanding of mechanisms that underlie species distribution and community assembly. The current knowledge on the effects of elevation on richness and community composition is almost entirely based on vascular plants and animals, where ...
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Altitudinal gradients fail to predict fungal symbiont responses to warming

Ecology, 2019
AbstractClimate change is shifting altitudinal species ranges, with potential to disrupt species interactions. Altitudinal gradient studies and warming experiments can both increase understanding of climate effects on species interactions, but few studies have used both together to improve predictions.
Melanie R. Kazenel, Stephanie N. Kivlin, D. Lee Taylor, Joshua S. Lynn, Jennifer A. Rudgers   +4 more
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Diversity of Tricholomataceae along a mediterranean altitudinal gradient

Cryptogamie Mycologie, 2001
Abstract This work studies variability in the composition of Tricholomataceae in different types of forest along an altitudinal gradient in the province of Madrid. It gives 26 new regional references, including most importantly Collybia aquosa, Clitocybe collina, Melanoleuca metrodiana, Cantharellula umbonata, Clitocybe decembris, Clitocybe ...
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