Convergent Vessel Diameter–stem Diameter Scaling across Five Clades of New and Old World Eudicots from Desert to Rain Forest

نویسندگان

  • Mark E. Olson
  • Julieta A. Rosell
  • Calixto León
  • Salvador Zamora
  • Andrea Weeks
  • Leonardo O. Alvarado-Cárdenas
چکیده

*Instituto de Biologı́a, Universidad Nacional Autónoma de México, Tercer Circuito s/n de Ciudad Universitaria, México DF 04510, Mexico; †Department of Biological Sciences, Macquarie University, North Ryde, New South Wales 2109, Australia; ‡Instituto de Investigaciones en Matemáticas Aplicadas y en Sistemas, Universidad Nacional Autónoma de México, Circuito Escolar s/n de Ciudad Universitaria, México DF 04510, Mexico; §Department of Environmental Science and Policy, George Mason University, MSN 5F2, Fairfax, Virginia 22030, USA; kSection of Evolution and Ecology, 2320 Storer Hall, One Shields Avenue, University of California, Davis, California 95616, USA; and #Laboratoire de Botanique Évolutive, Institut de Biologie, Université de Neuchâtel, Rue Emile-Argand 11 2000 Neuchâtel, Switzerland

برای دانلود متن کامل این مقاله و بیش از 32 میلیون مقاله دیگر ابتدا ثبت نام کنید

ثبت نام

اگر عضو سایت هستید لطفا وارد حساب کاربری خود شوید

منابع مشابه

Vessel diameter-stem diameter scaling across woody angiosperms and the ecological causes of xylem vessel diameter variation.

Variation in angiosperm vessel diameter is of major functional significance. In the light of recent models predicting optimal vessel taper given resistance imposed by conductive path length, we tested the prediction that plant size should predict vessel diameter, with dryland plants having narrower vessels for their stem sizes. We assembled a comparative dataset including vessel and stem diamet...

متن کامل

The effect of simulated dust storm on wood development and leaf stomata in Quercus brantii L

      Dust storms are increasingly threatening the forest ecosystem in Western Iran. Due to its coverage of vast area of Zagros forest, the Quercus brantii is at the front line of the attack. Most tree deaths in this forest are from this species. This study aims to investigate the effect of simulated dust on wood development and leaf stomata from seedlings of Persian oak. The oak seedlings were...

متن کامل

Spatial contagiousness of canopy disturbance in tropical rain forest: an individual-tree-based test.

Spatial contagiousness of canopy dynamics-the tendency of canopy disturbances to occur nearby existing canopy openings due to an elevated risk of tree fall around gaps-has been demonstrated in many temperate-zone forests, but only inferentially for tropical forests. Hypothesized mechanisms increasing the risk of tree fall around tropical forest gaps are (1) increased tree exposure to wind aroun...

متن کامل

Tropical Rain Forest Structure, Tree Growth and Dynamics along a 2700-m Elevational Transect in Costa Rica

Rapid biological changes are expected to occur on tropical elevational gradients as species migrate upslope or go extinct in the face of global warming. We established a series of 9 1-ha plots in old-growth tropical rainforest in Costa Rica along a 2700 m relief elevational gradient to carry out long-term monitoring of tropical rain forest structure, dynamics and tree growth. Within each plot w...

متن کامل

Effect of Livestock Grazing on Growth Characteristics of Atriplex Canescens

It has often been stated or implied that grazing is an important factor in the land degradation process, a suggestion supported by various research projects, and this study investigated the effect of livestock grazing on stem height, crowncover, production, basal diameter, stem biomass, litter, leaf-stem index (leaf to stem weight) , root diameter and weight and seed production per individual o...

متن کامل

ذخیره در منابع من


  با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید

برای دانلود متن کامل این مقاله و بیش از 32 میلیون مقاله دیگر ابتدا ثبت نام کنید

ثبت نام

اگر عضو سایت هستید لطفا وارد حساب کاربری خود شوید

عنوان ژورنال:

دوره   شماره 

صفحات  -

تاریخ انتشار 2013