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Transcript
Habitats What are they??? A habitat is where things live. It’s more than a home it’s more like a neighborhood For an animal a habitat includes all the land the animal needs to hunt gather food find a mate and raise a family pictures of different habitats: Biotic diversity This just means how many different species of living things (plants and animals) there are in a particular area. HIGH Biotic diversity- LOTS of different species live there Tropical rainforests have HIGH biotic diversity LOW biotic diversity- NOT VERY MANY different species live there tundra has LOW biotic diversity Biotic Factor- Any Factor that is living or used to be living and in a biome (animal or plants) ex. A tree, a rotting tree stump, a dead and decaying squirrel ABIOTIC FACTOR- any thing not living that is present in a biome. Ex. Air, water, sunlight, soil Some important “BuZZ”Biomes… That they always expect you to know A reminder about Biomes: Biomes A biome is a large ecosystem where plants, animals, insects, insects, and people live in a certain type of climate. Coniferous Forest or Taiga - These forests you’ll find just south of the frigid tundra. They have trees with cones such as spruce, hemlock, and fir, which do very well in the cold climate and low precipitation. The soil is not very fertile. Some animals that thrive or do well in this biome are the moose, the red fox, the snowshoe rabbit, the great horned owl. Deciduous forest- These areas have trees that lose their leaves in the fall. The soil is rich and and supports a lot of plant and animal life. Trees that live here are oak and maple. Animals that live here are raccoons, squirrels, mice, rabbits, deer and cardinals. Grasslands- Have hot dry climates that are perfect for growing food. They have a lot lot of names depending on where you are…in the U.S.U.S.prairies, in Africa and South AmericaAmerica- Savannas, and parts of Europe and AsiaAsia- Steppes. It’s very grassy here, not enough rain for trees. A very small variety of animals. Tropical RainforestsAre areas areas that get high amount of rainfall per year. The climate of a rain forest is very hot and humid . Tropical Rainforests are found closer to the equator. Rainforests have a more than ½ of the world’s total plant and animal species…For this reason they are said to have HIGH BIOTIC DIVERSITY! Mountains (special mention)- Mountains are found usually as a chain of mountains. Sometimes they stand alone. This biome is very cold and windy. The higher you are on a mountain, the colder it is and also less oxygen oxygen at these higher elevations. Usually no trees growing at the tops of mountains. Forests can grow at the bottom. Animals that live on high mountains are used to low oxygen and cold temps. Climatographs Climatographs are often used to represent a location’s temperature and precipitation patterns.- as a reminder, climate is an area’s temperature and precipitation. (Precipitation (how much water)water)- is measured with the bar graph.) (Temperature(Temperature- is measured with the line graph) This climatograph represents a tropical rainforest. Pay attention to the different scales. The Precipitation scale is on the left in (mm). For precipitation, look at the bars. The Temperature scale is on the right in (°C) - that’s Celsius. By The Climatograph measures precipitation and temperature in a biome. The letters at the bottom represent the months of the year. the way…the Celsius scale is NOT the (°F) Fahrenheit scale that we use. (80°F –is a really warm day for us. On the Celsius scale 80°F is 27°C. 27°C might seem cold if you’re just looking at the number. It’s actually a WARM temperature!) Food Webs Food webs show us how different species interact in a specific ecosystem. Arrows point to who’s doing the eating There are usually several organisms that eat the same thing. This causes COMPETITION between the organisms Food Chains and Food Webs Producers also called autotrophs, make their own food Consumers also called heterotrophs, Have to eat other things to get energy Herbivores Eat only plants Some examples of plant only eaters Carnivores Eat only meat Lions are carnivores Omnivores Eat plant and meat Humans and Bears are omnivores Decomposersbreak Earthworms and bacteria break down dead things Detritivores- down things that die SCAVENGERS that feed on dead things. They wait on things to die and then they eat them A vulture is a detritivore. You see this one eating a dead animal Look at the different consumer levels in a food chain Energy flow in an ecological pyramid Energy in any system flows from the producers to the consumers Only 10% of the energy is available from the previous level (the level the consumer is eating from) ECOSYSTEMS WHAT ARE THEY???? The plants and animals that are found in a particular location are called an ecosystem. These plants and animals depend on each other to survive. Disruptions (means something to mess stuff up) to an ecosystem can be disastrous (means really bad) to all organisms within the ecosystem. Thes an ecosystem. These plants and animals depend on each other to What happens when a new plant or animal is introduced into an ecosystem, where it did not before exist. The new organism competes with the natural organisms from that location for available resources. These ERROR: stackunderflow OFFENDING COMMAND: ~ STACK: