نتایج جستجو برای: plant ecology

تعداد نتایج: 441130  

Journal: :The New phytologist 2017
Colleen M Iversen M Luke McCormack A Shafer Powell Christopher B Blackwood Grégoire T Freschet Jens Kattge Catherine Roumet Daniel B Stover Nadejda A Soudzilovskaia Oscar J Valverde-Barrantes Peter M van Bodegom Cyrille Violle

Variation and tradeoffs within and among plant traits are increasingly being harnessed by empiricists and modelers to understand and predict ecosystem processes under changing environmental conditions. While fine roots play an important role in ecosystem functioning, fine-root traits are underrepresented in global trait databases. This has hindered efforts to analyze fine-root trait variation a...

2008
FABIO RUBIO SCARANO

(Rock outcrop vegetation in Brazil: a brief overview). This paper overviews the special issue of the Brazilian Journal of Botany dedicated to “Rock outcrop vegetation in Brazil”. The main topics covered by this issue are phytogeography and vegetation ecology, plant life on shallow soils, plant reproduction and auto-ecology, morpho-physiology and plant adaptation, and finally conservation and gl...

Journal: :Ecology letters 2010
Jason D Hoeksema V Bala Chaudhary Catherine A Gehring Nancy Collins Johnson Justine Karst Roger T Koide Anne Pringle Catherine Zabinski James D Bever John C Moore Gail W T Wilson John N Klironomos James Umbanhowar

Ecology Letters (2010) 13: 394-407 Abstract Mycorrhizal fungi influence plant growth, local biodiversity and ecosystem function. Effects of the symbiosis on plants span the continuum from mutualism to parasitism. We sought to understand this variation in symbiotic function using meta-analysis with information theory-based model selection to assess the relative importance of factors in five cate...

2016
Jonathan R. De Long Maja K. Sundqvist Michael J. Gundale Reiner Giesler David A. Wardle

fertilization on plant defence compounds in subarctic tundra heath vegetation Jonathan R. De Long*, Maja K. Sundqvist, Michael J. Gundale, Reiner Giesler and David A. Wardle Department of Forest Ecology & Management, Swedish University of Agricultural Sciences, SE-901 83 Ume a, Sweden; Department of Ecology and Environmental Sciences, Ume a University, SE-901 87 Ume a, Sweden; Center for Macroe...

2013
Carly Golodets Jaime Kigel Yuval Sapir Marcelo Sternberg

Golodets, C. (corresponding author, [email protected]) & Kigel, J. ([email protected]): Institute for Plant Sciences and Genetics in Agriculture, Robert H. Smith Faculty of Agriculture, Food and Environment, The Hebrew University of Jerusalem, 76100, Rehovot, Israel Sapir, Y. ([email protected]): The Botanical Garden, Department of Molecular Biology and Ecology of Plants, Faculty of ...

2014
Steven W. Kembel Timothy K. O’Connor Holly K. Arnold Stephen P. Hubbell S. Joseph Wright Jessica L. Green

Q:1; 2; 3 phyllosphere bacterial communities and plant Q:4; 5; 6 functional traits in a neotropical forest Steven W. Kembel, Timothy K. O’Connor, Holly K. Arnold, Stephen P. Hubbell, S. Joseph Wright, and Jessica L. Green Département des sciences biologiques, Université du Québec a ̀ Montréal, Montreal, Quebec, Canada; Q:7 Department of Ecology and Evolutionary Biology, University of Arizona, Tu...

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه رازی - دانشکده علوم 1391

in this work, a novel and fast method for direct analysis of volatile compounds (davc) of medicinal plants has been developed by holding a filament from different parts of a plant in the gc injection port. the extraction and analysis of volatile components of a small amount of plant were carried out in one-step without any sample preparation. after optimization of temperature, extraction time a...

Journal: :The American naturalist 2001
J Huisman F J Weissing

One of the central goals of ecology is to predict the distribution and abundance of organisms. Here, we show that, in ecosystems of high biodiversity, the outcome of multispecies competition can be fundamentally unpredictable. We consider a competition model widely applied in phytoplankton ecology and plant ecology in which multiple species compete for three resources. We show that this competi...

2008
Michele E.R. Pierotti Mairi E. Knight Simone Immler Nicola J. Barson George F. Turner Ole Seehausen

Michele E.R. Pierotti, Mairi E. Knight, Simone Immler, Nicola J. Barson, George F. Turner, and Ole Seehausen MolecularEcologyandEvolutionGroup,DepartmentofBiological Sciences,University ofHull, Cottingham Road, Hull HU6 7RX, UK, Aquatic Ecology and Macroevolution, Institute of Zoology, University of Bern, Baltzerstrasse 6, CH-3012 Bern, Switzerland, EAWAG Center for Ecology, Evolution and Bioge...

2008
F. A. Dijkstra A. R. Mosier D. G. Milchunas

1 USDA-ARS, Rangel and Resources Research Unit, Fort Collins, CO 80526, USA; 2 Department of Botany and Program in Ecology, University of Wyoming, Laramie, WY 82071, USA; 3 USDA-ARS Soil–Plant-Nutrient Research Unit, Fort Collins, CO 80526, USA; 4 Department of Soil, Water and Climate; and 5 Department of Ecology, Evolution and Behavior, University of Minnesota, St. Paul, MN 55108, USA; and 6 F...

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