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Transcript of Eastern Cougar
December 10, 2012 What are Eastern Cougars? Eastern Cougars are known by many names such as Panther, Mountain lion, puma or Cutamount. It's known by Puma concolor cougar in scientific form. It is the largest North American cat next to the Jaguar. It's weight range goes from 80-225 pounds, averaging 140. It's lenght varies from 5-9 ft. Male cougars are larger than female cougars. They have long, slender bodies with round heads. On the tip of their tails is where the black coloring appears. Some Cougars are immature, therefore they are paler with obvious dark spots on their flanks. Cougars are heterotrophs who gets their energy from eating other organisms. They are carnivores because they are only meat eaters. They get their everyday food by killing mammals such as deers, rats and squirrels. Their food web is terrestrial because they live on land. Across the lower Canada in the north to Patagonia and South America in the south was the original distribution of the Eastern Cougar. Eastern Cougars was found in variety of different habitats which includes tidal marshes, deserts, tropical forests and mountainous terrain. There are many abiotic and biotic factors found in those habitats. The cougar is able to live in the mountains of Colorado to the swamps of Florida.There are biotic factors in their habitat which includes trees, shrubs, and swamp trees which grows and feed on to organisms.There are also many abiotic factors in their habitat such as rocks, bluffs and caves . Cougars live in mountains and caves. Habitat of Eastern Cougar Food chain shows organisms in an ecological community that constitutes a continuation of food energy moving from one organism to the organism that eats it Food web also known as food cycle is a complex of interrelated food chains in an ecological community. Food pyramid shows the nutritional diagram in the shape of a pyramid in which the principal predator is at the top level and each level that it preys on is on the level below Producers Herbivores Omniovers Primary Consumers Secondary Consumer 100 % Energy 10 % Energy 1 % Energy Energy decreases as we move up an enegy pyramid. Each species in the food chain/ pyramid uses most of the energy it receives for growth, movement or to create body heat. The energy is 'lost' (not available) to be passed on to the next species. Types of symbiotic relationships Commensalism is the living of two organisms in a relationship that is benefical to one organism and doesn't affect the other organism at all Mutualism is an association between two different species of an organism in which both of the members benefits. Parasitism is when one organism is benefited while the other organism suffers and is harmed Symbiotic Relationships for Eastern Cougars Like all the mammals, Cougars live in symbiosis with their gut flora which is bacteria that helps to break down food and make nutrients available to be absorbed. This is Mutualism becaused both the cougar and bacteria benefits. The cougar supplies the food for the badcteria, and the bacteria makes certain nutrients available for the cougar. The cougar and gut flora help each other and benefits. In fact, if it wasn't for our gut flora, we would certainly die out of malnourishment. Cougars are also in symbiosis with the deer. The cougar hunts and keeps the deer population in balance by preying upon the weaker animals. The deer provides the cougar with a food source. This is also mutualism because both the cougar and the deer gets benefited by helping each other and providing with food sources. Predation and Competition Predation occurrs when a predator which is an organism that is hunting feeds onto its prey which is the organism that is being attacked. Ex. Cougars attacking bobcats Competition is when there are two organisms from the same or different species fighting for food at the same place and time.
Ex. Cougars and tigers competing for deers Humans' impaction the cougars' habitat Humans impact the habitat of cougars by over hunting of their prey base. In many western U.S states, cougars are hunted legally excluding the states of California and Florida. Those are the only two states where hunting of cougars is banned. Some people beleives that cougars are a threat to a livestock so it is better to kill them. Some people beleive that the cougars eats the deers and elks that humans love to hunt. The cougars eat the deer so the humans can't hunt. It would be better to kill them. Also, sometimes cougars' kill human beings.