Challenges to the generality of WBE theory.

نویسنده

  • David A Coomes
چکیده

The West, Brown and Enquist (WBE) theory has attracted great interest because it makes general predictions about scaling of ecological processes with body size. Recent research by Muller-Landau and co-workers challenges the generality of this theory by showing that demographic processes in natural forests do not scale in the way that the theory predicts. For WBE theory to be relevant to plant community dynamics, more complex models are required to deal with the influences of competition for light, nutrient supply and disturbance experienced by such communities.

برای دانلود رایگان 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

A Model for Evaluating Potential WBE Innovations

Due to the constantly evolving nature of Web-based Education (WBE) it is often difficult for educators to understand the issues, challenges, impact, and effort required to introduce WBE innovations. This lack of knowledge can contribute to the limited adoption and less than successful implementation of WBE innovations. This paper draws on an aspect of innovation diffusion theory to propose a mo...

متن کامل

Institutionalizing Web Based Education: A Case Study

Web-based education, started about 6 years ago, is growing by leaps and bound and is expected to reach almost 5 million students by 2006. Many players have already been eliminated but many more are emerging. Many institutions are at a cross road and in many cases their survival depends on how successfully they handle WBE. In this regard they can learn from early adopters of WBE and learn from t...

متن کامل

Teachers-To-Be Voices: A Grounded Theory Approach Towards Challenges Facing Iranian EFL M.A. Candidates

Improvement in the quality of teacher education is an issue of considerable concern to every country including Iran. The challenges that student-teachers face during their education can be highly influential in this regard. Consequently, the present study was an attempt to come up with a model for the factors challenging Iranian EFL preservice teachers using a grounded theory approach. For this...

متن کامل

Challenges and obstacles of academic culture in institutionalizing quality culture in higher education: A grounded theory study

Background & Objective: To recognize the challenges and obstacles of academic culture in institutionalizing the quality culture in higher education, the Grounded Theory research method helped us to provide a conceptual model in higher education. This model would provide a correct understanding of the challenges and obstacles of academic culture for the beneficiaries. Materials & Methods: The p...

متن کامل

Testing metabolic theories.

Metabolism is the process by which individual organisms acquire energy and materials from their environment and use them for maintenance, differentiation, growth, and reproduction. There has been a recent push to build an individual-based metabolic underpinning into ecological theory-that is, a metabolic theory of ecology. However, the two main theories of individual metabolism that have been a...

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

عنوان ژورنال:
  • Trends in ecology & evolution

دوره 21 11  شماره 

صفحات  -

تاریخ انتشار 2006