专业外语

李法云

目录

  • 1 PART I：INTRODUCTION
    • 1.1 Importance
    • 1.2 The Logic of Science
    • 1.3 Further Reading
  • 2 PART II: CRASH COURSE IN ENGLISH FOR ECOLOGY MAJORS
    • 2.1 History of Earth
    • 2.2 Population Ecology
    • 2.3 The Population Growth
    • 2.4 Community Ecology (1)
    • 2.5 Community Ecology (2)
    • 2.6 Ecological Succession
    • 2.7 Ecosystem Ecology
    • 2.8 Hydrological Cycle and Carbon Cycle
    • 2.9 Nitrogen and Phosphorus Ecology
    • 2.10 Human's Impact on Environment
    • 2.11 Pollution
    • 2.12 Conservation  Ecology and Restoration Ecology
  • 3 PART III: PRINCIPLES OF ECOLOGY
    • 3.1 Climate and the Distribution of  Life on Earth
    • 3.2 Physiological Ecology
    • 3.3 Population Growth
    • 3.4 Interspecific Competition
    • 3.5 Ecological Communities
    • 3.6 Energy and Matter in Ecosystems
    • 3.7 The Factors Affecting Biodiversity
  • 4 PART IV: PAPER WRITING
    • 4.1 How to Write a “Good” Paper
    • 4.2 The Writing Process
    • 4.3 Format and Other Technical Details
    • 4.4 General Considerations
    • 4.5 Title
    • 4.6 Abstract
    • 4.7 Introduction
      • 4.7.1 Establishing the Field and Its importance
      • 4.7.2 Citing other research in the field
      • 4.7.3 Pointing out a gap in the field knowledge
      • 4.7.4 Giving a preview of what you did in the present study
      • 4.7.5 Alternate form
    • 4.8 Research journal article--Experimental Section/Model Description
    • 4.9 Research journal article--Results
    • 4.10 Research journal article-Discussion
    • 4.11 Research journal article--Acknowledgments and References
    • 4.12 Research journal article--Legends for tables and illustrations
    • 4.13 Oral Presentation
    • 4.14 Writing to the Editor
    • 4.15 Lecture
    • 4.16 AI helps academic
Ecological Communities

Ecological Communities

Lecture: The Logic of Science

Prof. Stephen C. Stearns

OPEN YALE COURSE EEB 122: Principles of Evolution, Ecology and Behavior

Yale Univeristy

Overview

The idea of ecological communities has changed tremendously over the past forty years. The classical view stated that there were so many different species because evolution packed them tightly into the available niches. The modern view emphasizes the idea of trophic cascades, or top-down control in food chains. This emphasized the importance of predation in ecology, although it downplayed the significance of food webs, which showed the interrelated nature of ecosystems better than simple food chains.


Part I:


Part II:


(Video source: http://open.163.com)