Overview
This topic explores how organisms behave in their environments, the social structures they form, and the influence humans have on ecosystems. It includes behavioral biology, population trends, and environmental challenges related to human activity.
Key Concepts and Structures
- Animal Behavior: Includes instinctive and learned behaviors. Studied in terms of survival, reproduction, and evolutionary fitness.
- Types of Learning: Includes habituation, imprinting, conditioning (classical and operant), and observational learning.
- Communication: Methods include visual, auditory, chemical, and tactile signals. Used for mating, territory defense, warning, and cooperation.
- Social Behavior: Cooperation, altruism, dominance hierarchies, and group living. Can improve survival and reproductive success.
- Population Growth and Resource Use: Human population growth increases demand for natural resources, leading to deforestation, overfishing, and water scarcity.
- Pollution: Air, water, and soil pollution disrupt ecosystems and harm health. Includes greenhouse gases, plastics, and toxic waste.
- Climate Change: Driven largely by fossil fuel use and greenhouse gas emissions. Leads to rising temperatures, sea level rise, and more extreme weather.
- Habitat Loss and Fragmentation: Major causes of species extinction and biodiversity loss. Occurs through urban development, agriculture, and logging.
- Conservation Biology: The science of protecting and restoring biodiversity through protected areas, legislation, and sustainable practices.
- Sustainable Practices: Includes renewable energy, recycling, habitat restoration, and reducing consumption to minimize ecological impact.
Quick Tip
Know the difference between types of behavior (innate vs. learned) and be ready to explain how human activity alters natural systems. Real-world examples often appear on exams.