1 018J Ecology I The Earth System Fall 2009

Our planet operates as a complex, interconnected system where living organisms and physical forces constantly shape one another. Developing a foundational understanding of these processes is essential for anyone interested in environmental science, sustainability, or conservation. This course provides a comprehensive introduction to ecology, treating the Earth as an integrated, living system. You will transition from grasping basic ecological terminology to analyzing complex global cycles and population interactions. By exploring how energy and materials flow through different environments, you will gain the scientific literacy needed to address modern environmental challenges. What you'll learn: - Understand the coevolution of the biosphere, geosphere, atmosphere, and oceans - Analyze the fundamental mechanics of the carbon, nitrogen, and hydrologic cycles - Examine how energy flows and materials cycle through diverse ecosystems - Model population growth, competition, predation, and mutualistic relationships - Evaluate the principles of natural selection, evolution, and metabolic diversity - Apply modern ecological concepts to analyze contemporary climate change and biodiversity loss patterns We begin with foundational definitions, exploring the physical and biological building blocks of the Earth system. From there, you will read through structured modules covering ecosystem energetics, population dynamics, and the critical feedback loops that regulate life on Earth. This course is designed for absolute beginners, environmental enthusiasts, and students seeking a structured, text-based introduction to ecological sciences. No prior biology or advanced science background is required to begin. Start reading today to build a solid foundation in how our planet's living and non-living systems interact.