Part 1 - Levels of Organization in Ecology

• Levels of organization in ecosystem - organisms, populations, communities, ecosystems, biosphere
• People and the Earth’s Ecosystem - A course exploring how human activities impact the natural environment, covering topics like pollution, population, ecosystems, agriculture, and energy resources.
• Ecology - The scientific study of the interactions between organisms and their environment, including both biotic and abiotic components.
• The hierarchy in ecology: Organism → Population → Community → Ecosystem → Biosphere
• Levels of Ecological Organization - The hierarchy in ecology: Organism → Population → Community → Ecosystem → Biosphere
• Levels of Ecological Organization - The hierarchy in ecology: Organism → Population → Community → Ecosystem → Biosphere
• Organism - An individual living thing that can react to stimuli, reproduce, grow, and maintain homeostasis.
• Population - A group of individuals of the same species living in the same area at the same time.
• Community - All the different populations that live together in a defined area.
• Ecosystem - A biological community of interacting organisms and their physical environment.
• Biosphere - The global sum of all ecosystems; the zone of life on Earth.
• Habitat - The natural environment in which an organism lives, including all living and non-living factors.
• Niche - The role an organism plays in its ecosystem, including how it obtains resources, interacts with others, and responds to environmental factors.
• Niche - The role an organism plays in its ecosystem, including how it obtains resources, interacts with others, and responds to environmental factors.
• Spatial or Habitat Niche - Refers to the physical space an organism occupies.
• Trophic Niche - Defines an organism’s position in the food chain and its feeding behavior.
• Multidimensional or Hypervolume Niche - Considers multiple biotic and abiotic factors influencing an organism’s existence.
• Three Types of Niche

  • Spatial or Habitat Niche
  • Trophic Niche
  • Multidimensional or Hypervolume Niche
• Biosphere - Ecompasses all the ecosystems on Earth.
• An organism's habitat is its "address" while niche is its "occupation"
• Spatial or Habitat Niche - Describes where the organism lives—its physical environment or shelter.
• Trophic Niche - Describes how an organism feeds and its position in the food chain.
• Multidimensional or Hypervolume Niche - Considers many biotic and abiotic factors that influence an organism’s life.
• Biotic - Living parts of an ecosystem (plants, animals, microbes, etc.)
• Abiotic - Non-living parts of an ecosystem (climate, soil, water, etc.)
• Knowledge - Understand impact of resource consumption and human activity on ecosystems.
• Skills - Formulate research-based solutions to ecological problems.
• Values - Develop moral and ethical responsibility in addressing environmental issues.