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Journal 4/14/14

Journal 4/14/14. The frog to the right is poisonous. It has a red coloring to ward away other animals. In nature, red often is a warning to animals. Do you think this sort of thing actually works? How do you think animals learn to stay away from red markings?.

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Journal 4/14/14

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  1. Journal 4/14/14 The frog to the right is poisonous. It has a red coloring to ward away other animals. In nature, red often is a warning to animals. Do you think this sort of thing actually works? How do you think animals learn to stay away from red markings? Objective Tonight’s Homework To learn a few specifics about how animals adapt to a habitat Read pp 460-461 Do facet 18A #1, 2 on p 467

  2. Notes on Animal Habits Camouflage Many animals use disguise for both attack and defense. The leaf-like appearance of the praying mantis lets it sneak up on prey while at the same time remaining hidden from birds. Many butterfly species also have protective coloration, helping to hide them from predators. This sort of thing works because most eyes see movement better than they see color. This one hides best on ash trees.

  3. Notes on Animal Habits Warning Colors The frogs we mentioned in our warmup have what’s called warning coloration. This warns predators to stay away. A skunk, for example, has bright stripes. After getting skunked once, a predator will learn to stay away from anything with stripes like that.

  4. Notes on Animal Habits Mimicry Some animals will copy or mimic others, or extra body parts. A lot of butterflies have false eyes on their wings. This tricks predators into thinking they’re being watched so that they don’t attack. The viceroy butterfly will mimic the colors of the monarch butterfly. It does this because the monarch tastes very bitter and predators don’t like to eat them. So if the viceroy mimics this, it can survive longer.

  5. Notes on Animal Habits Viceroy monarch sss

  6. Notes on Animal Habits Diurnal and Nocturnal Animals also survive based on what time they wake, hunt, hide, and sleep. Cats, for example, get more active at dusk and dawn. Why? Because most other animals are either just waking up or just going to sleep. That means nothing is really alert yet. Perfect time to hunt! If a creature is active at night, we say it’s nocturnal. If it’s active in the day, we say it’s diurnal.

  7. Notes on Animal Habits Seasonal Adaptations Most of these you’re familiar with. Some animals hibernate in winter. Birds migrate across regions depending on the season. Plants drop leaves and hibernate in winter as well. In other parts of the world, animals migrate based on wet and dry seasons, but the effect is similar.

  8. Notes on Animal Habits Lunar Adaptations Lastly, some animals modify behavior based on the moon. Certain rodents will mate more during a full moon. Tons of studies have even been done to see if human behavior is affected by the moon. The consensus seems to be a little bit “yes”. There are more crimes during a full moon, and also more births. Not a huge effect, but one that’s there.

  9. Notes on Animal Habits Succession Our last topic today is something called “succession”. This is all about how an ecosystem changes over time if left alone. Let’s take a small lake up in the mountains. This lake isn’t very deep, has little water flow, and has a lot of reeds and lily. At this point, we may have a lot of frogs, mosquitoes, and a few fish.

  10. Notes on Animal Habits Over time, the slow river brings in silt and dirt. This builds up until the lake is no more than a marsh now. At this point, we could expect to find a number of birds, frogs (still), mosquitoes, and a larger population of worms.

  11. Notes on Animal Habits Our marsh will dry out over time, producing a meadow. Our ecosystem now shifts away from frogs and mosquitoes towards mice, foxes, and meadowlarks. Over time, shrubs will begin growing, providing shade. This will bring in rabbits, cardinals, and other small animals able to eat the berries.

  12. Notes on Animal Habits Pine seedlings will thrive in the shade of the bushes, and this will grow into a young pine forest. New flowers will appear, new animals will hunt among the trees, and the ecosystem will change. By the time the pine trees are grown, the system will be able to support wolves, bears, deer, and other large animals. The area beneath the pines will now support more small animals, beetles, and insects. At this point, the ecosystem das reached the climax stage.

  13. Adding to your Exhibit We covered a lot of stuff today. For the rest of class, be thinking about how you can add some of the information from today to your information plaques or exhibit. Obviously, you’re not going to have your exhibit go through succession, but there may be stuff there that you can use to explain to visitors about the animal’s natural habitat. Also, identify cycles for your animal. If you animal is nocturnal, people will get bored because it will just sleep all day. Find a way to make it simulate night so people can see it. If your animals have clever tricks, see if you can find a way for people to see those tricks in action.

  14. Exit Question #26 What would the climax stage for a desert look like? a) Lots of cactus, tumbleweed, and small animals b) Sand and no life c) Snakes, beetles and some lizards d) Mountain lions, condors, and large snakes e) Any of the above could be the climax stage f) None of the above could be the climax stage

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