1. N ATURE U NBOUND L ESSON 4 – I NTERACTIONS A MONG O RGANISMS Conservation Mr. Dieckhoff

2. W ATCH THE FOLLOWING 3 INTERACTIONS BETWEEN ANIMALS, WHAT IS DIFFERENT ABOUT EACH ANIMALS INTERACTION WITH THE OTHER ANIMAL ? Turkey Buzzard & Bald Eagle: https://www.youtube.com/watch?v=gjpiq0leaUs Mink & Muskrat: https://www.youtube.com/watch?v=qeo5moeV254 Bee & Purple Coneflower: https://www.youtube.com/watch?v=rq7p9OpT56M

3. A NIMAL I NTERACTIONS Relationship between two or more organisms that affects growth, survival, or reproduction of participants Categories 1. Competition – Example – turkey buzzards & bald eagle 2. Exploitation – Example – Mink killed the muskrat 3. Mutualism – Example – bee and purple coneflower How would you categorize the following interactions:

4. O RGANISMS COMPETE FOR LIMITED RESOURCES Competition – Indirect competition – Intraspecific competition – Interspecific competition –

5. C OMPETITION M ANAGEMENT Competition affects growth, survival, & reproduction Timber Stand Improvement https://www.yo utube.com/watc h?v=6BsI72_w- VI https://www.yo utube.com/watc h?v=6BsI72_w- VI

6. N ICHE Niche – describes everything affecting a particular species’ existence, including the range of environmental conditions the species can tolerate, what the species needs to grow, survive and reproduce, and how the species interacts with its biotic and abiotic environment Fundamental Niche – Realized Niche –

7. 2 S PECIES C ANNOT H AVE T HE S AME N ICHE Competitive Exclusion Principle (Gause) – Marine Example: https://www.youtube.com /watch?v=rZ_up40FZVw https://www.youtube.com /watch?v=rZ_up40FZVw Resource Partitioning – Warbler Example: https://www.youtube.com /watch?v=LBFnJtTkV4c https://www.youtube.com /watch?v=LBFnJtTkV4c

8. E XPLOITATION Benefits one organism but harms another Predators – https://www.youtube.com/watch?v=wFv0-TdIt3U https://www.youtube.com/watch?v=wFv0-TdIt3U Herbivores – Parasites – Host –

9. A DAPTATION IN E XPLOITATION Adaptations either enhance or hinder an animals ability to exploit another animal Brood Parasite – Brown Headed Cowbird: https://www.youtube.com/watch?v=k3vAPMUW4CA https://www.youtube.com/watch?v=k3vAPMUW4CA Leave forest intact Warning Coloration –

10. M IMICRY Mimic – Model – 1. Batesian Mimicry – mimic resembles a model Example: Clear Winged Moths 2. Mullerian Mimicry – model resembles another model Example: Viceroy & Monarch butterfly

11. C OMMENSALISM Commensalism – Example – stick-tights (beggar ticks)

12. M UTUALISM Symbiosis –

13. P REDATOR -P REY C YCLE

14. C ONCLUSION 1. Interactions 2. Competition 3. Affects of Growth 4. Management of Competition 5. Niche 6. Exploitation 7. Mimicry 8. Mutualism 9. Predator-Prey Cycle