1. Concepts in Natural Resources

2. Concepts we will discuss Concepts we will discuss Renewable Resource Renewable Resource Nonrenewable Resource Nonrenewable Resource Environment Environment

3. Concepts in Natural Resources Concepts we will discuss (continued) Concepts we will discuss (continued) Ecology Ecology Ecosystem Ecosystem Biome Biome

4. Concepts in Natural Resources Concepts we will discuss (continued) Concepts we will discuss (continued) Preservation vs. Conservation Preservation vs. Conservation Carrying Capacity Carrying Capacity Food Chains Food Chains

5. Concepts in Natural Resources Renewable Resource Renewable Resource Resources that can be replaced by human efforts Resources that can be replaced by human efforts Can be Renewable forever depending on the management of the resource Can be Renewable forever depending on the management of the resource Example: Forests and Forest Products Example: Forests and Forest Products

6. Concepts in Natural Resources Non-Renewable Resources Non-Renewable Resources Limited resources that cannot be replaced once they are gone Limited resources that cannot be replaced once they are gone Careful use and extend the length of their availability Careful use and extend the length of their availability Example: Petroleum and Petroleum products Example: Petroleum and Petroleum products

7. Concepts in Natural Resources Environment Environment All of the physical surroundings of a species All of the physical surroundings of a species

8. Concepts in Natural Resources Ecology Ecology Study of the complex relationships among living things and their environment Study of the complex relationships among living things and their environment

9. Concepts in Natural Resources Ecosystem Ecosystem Any partially self-contained environmental and living thing Any partially self-contained environmental and living thing Example: A lake, a large valley, or a forest Example: A lake, a large valley, or a forest

10. Concepts in Natural Resources Biome Biome A major land area characterized by dominant plant life forms A major land area characterized by dominant plant life forms Established by altitude and rainfall Established by altitude and rainfall

11. Concepts in Natural Resources Biomes (continued)

12. Concepts in Natural Resources Preservation Preservation An attempt to prevent the use of a natural resource An attempt to prevent the use of a natural resource Aim is to “preserve” or keep it intact as it is or was Aim is to “preserve” or keep it intact as it is or was Conservation An attempt to use a natural resource in a way to minimize water Aim is to maintain the resource in as good of condition as possible

13. Concepts in Natural Resources Carrying Capacity Carrying Capacity The ability of an ecosystem to provide food and shelter for a given population. The ability of an ecosystem to provide food and shelter for a given population.

14. Concepts in Natural Resources Food Web Food Web A group of plants and/ or animals A group of plants and/ or animals related to each other by the fact that one feeds or depends for food on the next related to each other by the fact that one feeds or depends for food on the next

15. Concepts in Natural Resources Food Web (continued) Pyramidal in shape Pyramidal in shape Many producers Many producers Fewer Consumers Fewer Consumers Fewer still predators Fewer still predators

16. Concepts of Natural Resources Food Web (continued)

17. Concepts of Natural Resources Producers Also known as autotrophsAlso known as autotrophs Make their own foodMake their own food Consumers Also known as hetertrophs Organisms that feed on other species

18. Concepts of Natural Resources Food Chains (Continued) Food Chains (Continued)  Carnivores First-order CarnivoresFirst-order Carnivores –Carnivores that feed on herbivores Second-order CarnivoresSecond-order Carnivores –Carnivores that feed on first order carnivores

19. Concepts in Natural Resources Food Chains (continued) Food Chains (continued)  Omnivores  “All eaters”  These critters are both herbivores and carnivores

20. Concepts of Natural Resources Food Chains (continued) Food Chains (continued)  Predators  Carnivores that feed on live animals  Examples: Owls

21. Concepts in Natural Resources Food Chains (continued) Food Chains (continued)  Prey  Animals that are eaten by predators  Examples: Mice

22. Concepts in Natural Resources Food Chains (continued) Food Chains (continued)  Scavengers  Critters that feed on dead organisms  Both plants and animals  Examples: snails, crayfish, crow

23. Concepts in Natural Resources Food Chains (continued) Food Chains (continued)  Saprophytes  Fungi that feed on dead organisms  Examples: Fungi, bacteria

24. Concepts in Natural Resources Food Chains (continued) Food Chains (continued)  Decomposer  Break down and feed on non-living organic matter  Examples: Yeasts, molds