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Ecology Notes Sheet

Ecology Notes Sheet. All images are a part of the Creative Commons license of free use. Ecology. The study of the relationship between organisms and their environment. All images are a part of the Creative Commons license of free use. Environmental Factors.

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Ecology Notes Sheet

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  1. Ecology Notes Sheet All images are a part of the Creative Commons license of free use

  2. Ecology • The study of the relationship between organisms and their environment All images are a part of the Creative Commons license of free use

  3. Environmental Factors • Biotic: are living or were once living • Abiotic: never living All images are a part of the Creative Commons license of free use

  4. Biotic or Abiotic? Bacteria Dead fish Heat Zooplankton Carrots Energy Corn Rat Photosynthesis Rock Phytoplankton Nitrogen Temperature Dead flowers Hamburger Sunshine

  5. Symbiotic Relationships • Commensalism: One species benefits, one is unharmed • Mutualism: both species benefit • Parasitism: one species benefits, one is harmed or dies • Parasite feeds on host • Host: where Parasite lives All images are a part of the Creative Commons license of free use

  6. Examples of Symbiotic Relationships • Example 1: A bird builds its nest in a tree. The tree offers protection and support for the nest. The nest causes no harm to the tree. • Example 2: A mosquito bites you. The mosquito gets nutrients from you. Your mosquito bite itches.

  7. Examples of Symbiotic Relationships • Example 3: A harmless bacteria lives in human intestine. The bacteria produces vitamin B-12 for the human. The human provides and place to live and food to eat. • Example 4: Max, a Rottweiler, is infested with fleas. The fleas feed on Max. This makes Max sad.

  8. Examples of Symbiotic Relationships Parasitism Mutualism Mutualism Mutualism Commensalism Commensalism All images are a part of the Creative Commons license of free use

  9. Examples of Symbiotic Relationships Commensalism Parasitism Mutualism Mutualism Parasitism All images are a part of the Creative Commons license of free use

  10. Producer • Performs photosynthesis 6CO2 + 6H2O + sunlight → 6O2 + C6H12O6 • Sun is the source of all energy • Example: Phytoplankton (drifting producer) All images are a part of the Creative Commons license of free use

  11. Consumer • Performs respiration 6O2 + C6H12O6→ 6CO2 + 6H2O + energy • Example: Zooplankton (drifting consumer) All images are a part of the Creative Commons license of free use

  12. Types of Consumers • Carnivore: eats only meat • Herbivore: eats only plants • Omnivore: eats both plants and meat Predator – hunts prey [ is a Carnivore] Prey – hunted for food [is an Herbivore or Carnivore] NOTE: Vegetarians are omnivores, not herbivores. (Vegetarians choose to not eat meat, herbivores cannot digest meat)

  13. Examples of Consumers • Predator: hunts prey • Scavenger: feeds on already dead animals All images are a part of the Creative Commons license of free use

  14. Decomposer • Breaks down dead organisms • Bacteria and Fungi All images are a part of the Creative Commons license of free use

  15. Food Chain • A series of producers and consumers – step by step up the food pyramid All images are a part of the Creative Commons license of free use

  16. Food Web • Numerous inter-connected food chains in a biome All images are a part of the Creative Commons license of free use

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