Principles of Ecology: Introduction

eTextbook Learning & Quizzes: Quizzes are due by the exam date and are associated with the eTextbook.
Problem Sets: These are considered homework assignments.
Lab Preparation: Read the lab handout before attending, and ensure you know the previous week's material, as exams will include lab materials.
Grade Management: Aim for a good grade. The lowest quiz grade will be dropped.
Study Tool: Use flashcards for effective studying.

Definition: Ecology is a broad term defined as the study of the interactions between organisms and their environment.
- The environment includes both biotic (living) and abiotic (non-living) components.
Significance of Interactions: These interactions are what determine the distribution and abundance of species.
Approaches to Study: There are many different ways to study ecology, and it can be examined at various levels of interaction clarity.

There are two main levels of interactions that ecologists study:

Proximate Factors/Explanations:
- Definition: These are the immediate causes for a response or phenomenon.
- Example: If someone scares you, the immediate response is to scream, accompanied by a physiological