Results 111 to 120 of about 422 (151)

Morphological Diversity and Preliminary DNA Barcoding of <i>Xylaria</i> (Xylariales) from Estación Científica San Francisco, Including <i>Xylaria aenea</i> as a New Record for Ecuador. [PDF]

J Fungi (Basel)
Cruz D, Suárez JP, Chamba A, Duque-Sarango P, Espinosa L, Vandregrift R.   +5 more
europepmc   +1 more source

Population Differentiation in Solidago virgaurea along Altitudinal Gradients

, 2009
Altitudinal gradients offer attractive opportunities for studies of population differentiation in response to environmental heterogeneity. In this thesis, I examined population differentiation along altitudinal gradients by combining common-garden experiments with field studies and experiments in alpine, subalpine and boreal populations of the ...
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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
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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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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
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The Altitudinal Gradients of Air Temperature in Southern Norway

Geografiska Annaler: Series A, Physical Geography, 1980
ABSTRACT. Following from an earlier paper on the altitudinal gradients of temperature in the British Isles (Harding, 1978) a statistical study is made of the more extensive network of upland observations from southern Norway. The effects of altitude are found to be similar in the two regions: the mean values of the altitudinal gradients are the same ...
F. H. W. Green, R. J. Harding
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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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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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Species Richness and the Analytic Geometry of Latitudinal and Altitudinal Gradients

Acta Biotheoretica, 2008
Extensive empirical work has shown that species richness decreases roughly exponentially or quadratically with latitude. What appears to be a latitudinal gradient in fact may simply be a negative correlation of latitude with area at that latitude, due to convergence of lines of meridian at the poles.
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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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