Ecology Review

Master ecology! Review food webs, nutrient cycles, population dynamics, and symbiotic relationships in this engaging worksheet.

Use the image below to help fill in the blanks. Double check your spelling. 1. Reduction of the plankton would have the greatest environmental impact in this ecosystem because everything directly or indirectly relies on them for their energy.2. Overfishing of krill will lead to a decrease in the seagull population.3. A deadly disease takes out half the penguin population. This will lead to a increase in the plankton population. Ecology Vocab Match the word with the description. pioneer species lichens and moss that colonize bare rock climax community mix of living things that exist in balance and are stable for long periods of time. bioaccumulation The concentration of toxins in the tissues of an organism as a result of its ingesting other plants or animals that had been exposed. Biomagnification Toxins increase in organisms as they are ingested. Each subsequent trophic level contains higher concentrations of the toxin as it moves up the food chain. primary succession Gradual process by which ecosystems change and develop over time, starts with bare rock. secondary succession Faster process by which ecosystems change and develop over time, starts with bare soil after a land clearing event. Use the image below to help fill in the blanks. In this ecosystem, the producers have 1,000x the original amount of DDT in the water.In turn, the primary consumers will receive 10,000x the original amount.Concentration of DDT increases as it moves up the ecological pyramid because the transfer of energy between trophic levels is much less efficient than is the transfer of DDT. Label this population curve of deer on the island of Walla Walla Washington. Choices are:exponential growth - less deer than resourcesovershoot - more deer than resourcescarrying capacity - maximum population the island can sustain exponential growth - less deer than resources overshoot - more deer than resources carrying capacity - maximum population the island can sustain Carbon Cycle Game I would recommend doing the tutorial round first. The game will assign you a color and a current zone and tell you the next one up as well. It is your goal to get as much of your carbon to the current zone and keep as much of your opponents carbon out. Play this carbon cycle game at least once all the way through. Send me a screenshot of you winning. If you lose, play until you win. Nitrogen cycle video Pay special attention to the way that nitrogen goes from the atmosphere into the soil or plants. Symbiosis - Living Together Sort these relationships into Mutualism, Parasitism, or Commensalism. You will need to look these organisms up if you are not familiar. There are 4 of each type. Commensalism Orchid and Rain Forest Tree Cattle Egret and Cattle Owl living in the hollow of an oak tree Bromeliads and Poison Dart Frogs Parasitism Deer tick and deer Mosquito and human Whale lice and wales Pea crab and Oysters Mutualism Egyptian Plover and Crocodiles Algae and Fungus (lichen) Shark and Pilot Fish Hermit Crabs and Sea Anemone