Presentation is loading. Please wait.

Presentation is loading. Please wait.

Pond Study Hypothesis Questions Is the pond in Media a healthy ecosystem? How do you know?

Similar presentations


Presentation on theme: "Pond Study Hypothesis Questions Is the pond in Media a healthy ecosystem? How do you know?"— Presentation transcript:

1 Pond Study Hypothesis Questions Is the pond in Media a healthy ecosystem? How do you know?

2 Healthy Ecosystems

3 Features of healthy ecosystems Biodiversity Index species

4 Biodiversity The variety of plant and animal species in an ecosystem

5 Biodiversity and ecosystems The greater the biodiversity, the more stable the ecosystem will be

6

7 Index species A species whose presence tells if water is clean or polluted

8 Common Pond Index species Mayflies: clean water

9 Common Pond Index Species Caddisfly larvae: Clean water

10 Media Pond Index Species Scuds: clean water

11 Common Pond Index Species Tubifex worms: Pollution

12 Niche review Decomposers Producers Consumers –Herbivores –Predators

13 Consumers in the pond Collectors –Gatherers: feed on the bottom –Filter feeders: filter small particles out of the water

14 Consumers in the pond Scrapers: graze on algae that is attached to rocks Shredders: break dead plants into smaller pieces

15 Consumers in the pond Predators –Grab and eat other animals ●Parasites

16 Pond organism sketches View with the dissecting microscope Draw your specimens -4 minimum Label each with the name of the organism, habitat (where you found it), niche, and feeding adaptation Each person makes drawings!

17 Work with your field trip group To identify your specimens, use the packets and our class website for help class website

18 Discussion questions How many different organisms did you see? Does the pond show biodiversity?

19 Food Web Analysis Keystone species: keeps ecosystem In balance

20 Food Web Analysis Keystone Species


Download ppt "Pond Study Hypothesis Questions Is the pond in Media a healthy ecosystem? How do you know?"

Similar presentations


Ads by Google