Results 281 to 290 of about 1,169,928 (316)

Leaf breakdown along an altitudinal stream gradient

Fundamental and Applied Limnology, 1998
Breakdown of alder (Alnus glutinosa) leaf litter was followed in fourteen sampling stations along a 1400 m altitudinal gradient of a 1st to 3rd-order undisturbed stream. Altitudinal patterns of leaf mass loss, nitrogen concentration in the leaves, fungal biomass determined as ergosterol content, and numbers and biomass of shredders and total ...
Fabre, Eric, Chauvet, Eric
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Change of Leaf Morphology along Altitudinal Gradients

Advanced Materials Research, 2013
It is the most effective way to study the effect of global warming on plant morphology by analyzing a plant species on a mount along altitudinal gradients. Altitudinal increase means decrease of temperature and metabolic rate as well. This might affect the leaf morphology greatly. The SEM study reveals that the size of nanopore on the epidermis changes
Hai Yan Kong, Rou Xi Chen, Ji Huan He, Lu Feng Mo   +3 more
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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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Suitable climatic habitat changes for Mexican conifers along altitudinal gradients under climatic change scenarios.

Ecological Applications, 2019
The high biodiversity of the Mexican montane forests is concentrated on the Trans-Mexican Volcanic Belt, where several Protected Natural Areas exist.
E. Gómez-Pineda, C. Sáenz-Romero, Juan Manuel Ortega-Rodríguez, A. Blanco‐García, Xavier Madrigal-Sánchez, R. Lindig-Cisneros, Leonel López-Toledo, M. E. Pedraza-Santos, G. Rehfeldt   +8 more
semanticscholar   +1 more source

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
openaire   +3 more sources