Spatial patterns of maternal investment in Strongylocentrotus franciscanus along a marine–terrestrial gradient

Patterns of distribution and plant diversity in along elevational gradient (Case study: Moghan-Sabalan rangelands)

The study of plant communities is the best way to learn about vegetation structure and distribution as well as various interactions among the plants in an ecosystem. Elevation factor plays a vital role in plant distribution that ultimately leads to specific phytogeographic regions. This study evaluated the changes in species composition, density, frequency, canopy cover and palatability of spec...

Composition, structure, and intra-stand spatial patterns along a disturbance severity gradient in a Quercus stand

analyzing patterns of classroom interaction in efl classrooms in iran

با به کار گیری روش گفتما ن شنا سی در تحقیق حا ضر گفتا ر میا ن آموزگا را ن و زبا ن آموزا ن در کلا سهای زبا ن انگلیسی در ایرا ن مورد بررسی قرار گرفت. ا هداف تحقیق عبا رت بودند از: الف) شنا سا ئی سا ختارهای ارتبا ط گفتا ری میا ن معلمین و زبا ن آموزا ن ب) بررسی تا ثیر نقش جنسیت دبیرا ن و زبا ن آموزان بر سا ختا رهای ارتبا ط گفتا ری میا ن آنها پ) مشخص کردن اینکه آ یا آموزگاران غا لب بر این ارتبا ط گف...

Bacterial diversity patterns along a gradient of primary productivity

M. Claire Horner-Devine*, Mathew A. Leibold, Val H. Smith and Brendan J. M. Bohannan Department of Biological Sciences, Stanford University, Stanford, CA 94305, USA Department of Ecology and Evolution, University of Chicago, Chicago, IL 6063, USA Department of Ecology and Evolutionary Biology, University of Kansas, Lawrence, KS 6604, USA *Correspondence: E-mail: [email protected] Abstract P...

Red sea urchins ( Strongylocentrotus franciscanus ) can live over 100 years : confirmation with A - bomb 14 carbon

Red sea urchins (Strongylocentrotus Walters, 1992; Congdon et al., 1994; franciscanus) along the west coast of Ebert, 1998). There is also the need to North America, like most large sea understand the evolution of life histourchins in temperate waters worldries of species where long life tends to wide, are the focus of a commercially be an indicator of uncertainty in indiimportant fishery. In a...