Results 281 to 290 of about 1,181,495 (342)

Distribution patterns and community assembly processes of eukaryotic microorganisms along an altitudinal gradient in the middle reaches of the Yarlung Zangbo River.

Water Research, 2023
Eukaryotic microorganisms play an important role in the biogeochemical cycles of rivers. Dynamic hydrological processes in rivers are thought to influence the assembly processes of eukaryotic microbes, as well as affecting local geomorphology.
Qing Yang, Peng Zhang, Xiaodong Li, Shengxian Yang, Xin Chao, Huiqiu Liu, Sang Ba   +6 more
semanticscholar   +1 more source

Intraspecific variations in leaf traits, productivity and resource use efficiencies in the dominant species of subalpine evergreen coniferous and deciduous broad‐leaved forests along the altitudinal gradient

Journal of Ecology, 2021
Many studies have reported intraspecific variations in leaf functional traits, but their contribution to plant performance and ecosystem function are poorly understood.
K. Hikosaka, H. Kurokawa, Takahisa Arai, Sakino Takayanagi, Hiroshi Tanaka, S. Nagano, T. Nakashizuka   +6 more
semanticscholar   +1 more source

Leaf wettability decreases along an extreme altitudinal gradient

Oecologia, 2009
The duration and amount of water captured on leaves and its functional significance is highly varied. Leaf surface wettability influences water absorption, gas exchange, pathogen infection, nutrient leaching, contamination by pollutants, self-cleaning properties and in freezing environments the probability of extrinsic ice nucleation.
Biva, Aryal, Gilbert, Neuner
openaire   +2 more sources

Altitudinal Gradient May Shadow the Effects of Altitudinal Range on Species Diversity

Applied Mechanics and Materials, 2014
Altitudinal range is widely used as a proxy of habitat heterogeneity to explain broad-scale geographical patterns of species diversity. Though altitudinal range is a factors derived from altitudinal gradient, altitudinal range’s effects on species diversity on altitudinal gradient remain little known.
Miao Li, Jian Meng Feng
openaire   +1 more source

Composition of soil bacterial and fungal communities in relation to vegetation composition and soil characteristics along an altitudinal gradient.

FEMS Microbiology Ecology, 2020
The objective of the present study was to evaluate how altitudinal gradients shape the composition of soil bacterial and fungal communities, humus forms and soil properties across six altitude levels in Hyrcanian forests.
M. Bayranvand, M. Akbarinia, Gholamreza Salehi Jouzani, Javad Gharechahi, Y. Kooch, P. Baldrian   +5 more
semanticscholar   +1 more source

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
openaire   +2 more sources

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
openaire   +1 more source

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
openaire   +1 more source

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
openaire   +2 more sources

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
openaire   +2 more sources