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Ecology Final Assessment

Transcript: Overall stability of the food chain Ocean Food chain Effect of overfishing:Tuna The food chain first level is phytoplankton and bacteria. Second level is insects and zooplankton. Third level is small fish and other aquatic species. Fourth level is predator fish. Fifth level is birds and mammals. Flow of energy of the foodchain Overfishing in general started in the early 1800s when humans were looking for blubber for lamp oil. which dramatically decreased the whale population. Overfishing of tuna began in 1989 when fisheries are looking for species of orange roughly and bluefin tuna. The damage to the Tuna population was so severe that in 2003 the population of tuna was reduced to 10%. when did the overfishing of tuna start? The over fishing of tuna weakens the stability of the food chain. When people kill tuna, they are also taking away a source of food for other animals. this can result in not only as a problem for the predator fish, but also in a reduction in the population of tuna why is overfishing of tuna a problem? There are a lot of fishing boats on the ocean that are stll overfishing tuna. most of the tuna that they capture weren't even able to reproduce. can also cause a big decrease in the population of tuna which can effect other sea animals that rely on tuna to survive. Tuna will be harder to come by in the future if overfishing continues. sushi will probably be less available in the future if this keeps up. Bibliography http://ocean.nationalgeographic.com/ocean/critical-issues-overfishing/ http://www.worldwildlife.org/threats/overfishing https://www.google.com/search?q=tuna+food+chain&oq=tuna+food

Ecology Final Assessment

Transcript: Ecology Final Assessment Microsystem -raised by a single latino mother -follows catholic religion -relationships with terrible men -often watched mother and boyfriends fight -went to a middle class school -lived in a semi-nice neighborhood -classmates that often made fun of him because he did not have as much money Microsystem Impact on Student The impact this has on the student is that his mom does not have a lot of time and when she does she does not spend it with him. The kids making fun of him in school makes the will to go very slim as well as his home life reflects the way he works in class. Mesosystem Mesosystem -With his mom bringing in a lot of different men it leads to him not being able to do well in classes. -His neighborhood is good and he has a few friends that he can hang out with outside of school so that helps him get along. -He plays basketball and even though his mom doesn't show affection at home, she still tries to show up to his games. Exosystem Exosystem -His mom has a job that she has to work at a lot to make ends meet so she does not see him very often. -School is hard for him. He does not have good grades and he often gets made fun of for his social class. -People caught on to the way he was acting in school and the environment his mother puts him in which lead to protective services checking in on him Macrosystem Macrosystem -He comes from a latino background -Grandparents got deported from ICE back to Mexico -Did not qualify for food stamps so there is often no food to eat -Mother does not have a green card so there is always a risk of her being deported as well. -They practice catholicism. Biases and Assumptions It is very common that there are biases and assumptions in the teaching world. One thing we have to do as future teachers is get rid of all of these so we can give each student the same treatment and the same education. Bi-Directional Influences As for bidirectional influences, I think that the fact that he was latino and his family struggled in America influenced him in all the other realms of his wheel

Ecology Assessment

Transcript: The Elephant Abiotic/biotic factors Elephantidae (scientific name) are the largest living land animal and have distinctly massive bodies, large ears and long trunks. Elephant ansetory spans over 56 million years and inculdes more than 300 proboscidean spices. Elephants belong to the genus Elephas which inculdes two living species. The African Elephant (Elephas maximas) and the Asian Elephant (Elehas maximus). The closest living thing to an Elephant are Hyraxes,.This is because Elephant and Hyraxes both descended from a common ancestor the Tethythera, who died out some 50 million years ago. But the closest non-living thing to and elephant is the Wooly Mammoths. At the morphological level the Wooly Mammoth has most often considered as the sister spieces of Asian elephants, and the two mammals share a 99.6 similar DNA makeup. Some abiotic factors of the Elephant inculde temperture, rainfall, soil compostion, and availbitly of water sources.These factors can influence the distribution, behavior, and survival of the Elephants in their habitat. For example Elephants require access to water for drinking and bathing, so the availability of water sources is crucial for their well being. Changes in temperature and rainfall patterns can also affect the availability of food and water, which can have an impact on elephant populations. Some biotic factors related to elephants inculde their interactions with other species, such as predators, prey and symbolic relationships. Predators like lions and tigers can pose a threat to Elephants, while their interaction with herbivores like zebras and antelopes can influence competition for resources. Elephants also have symbolic relationships with certain birds and certain insects, such as oxpeckers and beetles, which help remove parasites from their bodies. These biotic factors play a role in shaping the dynamics of elephant populations and their overall ecosystem. Ecological Niche The ecological niche of an elephant can be described as a large herbivorous mammal that plays a vital role in shaping its ecosystem. As primary consumers, Elephants have a significant impact on vegetation through their feeding habits, which can infuence plant growth and distribution. They aslo act as seed dispersers, helping to disperce seeds through their dung. Also, Elephants create water hole by clearing pathways in their habitat, benefiting other species by providing access to water and creating new opportunities for movement. Overall, Elephants are considered keystone species. Habitat Adaptations Elephants are found most often in savannas, grasslands, and forests. But they occupy a wide range of habitats, including deserts, swamps, and highlands in tropical and subtropical regions of Africa and Asia, this is becuase Elephants are higly adaptable and can be found in both wet and dry envirments. Elephants require access to water sources for drinking and bathing, so they are often found near rivers, lakees or watering holes. They prefer areas with a lot of vegetation for grazing and browsign on leaves, grasses and other plant materials. the diverse habitats elephants occupy reflect their ability to thrive in different ecosystems around the world. A few of the websistes I used where National Geographic, and World Wildlife fund. Elephants have many strucatural adaptations. For example their long tusks are actually enlongated incisor teeth, which they use for various tasks like digging, fighting, and gathering food. Their strong muscular trunks are incredibly versatile, allowing them to grasp objects, drink water, and even communicate through touch and sound. Also, their thick wrinkled skin helps protect them from the sun and insect bites. Some behavioral adaptations Elephants have is they live in tight-knit social group called herds, where they communicate through a variety of different vocalizations, body lanuage, and even infrasound which is a low frequency sound that can travel long distances. They aslo has remarkable memory and intelligence, allowing them to remember important locations, navigate their enviroment, and learn from eachother. Elephants are also known for their strong maternal instincts and cooperative behavior, often helping eachother in times of need. Elephants have several physiological adatations that help them survive in their enviroment. For example, thier size. Their size helps them intimidate perdators and access food sorces that other animals can't reach. They also have a unique digestive system that allows them to effciently break down and extract nutrients from tough plant materials. Also, Elephants have specialized teeth called molares that continuously grow and relpace worn out ones troughout their lives. These adaptations are able to help them thrive in their enviroment. Elephant

Ecology Assessment

Transcript: Question Four 4. Three factors that upset the dynamic equilibrium is alien weeds, fires, and feral animals. People brought cats to kill rodents and then these cats got into the wild and they kill native birds. Alien weeds come from their seeds on people that come into the area and have the little seeds on them Question Five 5. The Red Kangaroo is an endagered species in this area. A factor that affects the Red Kangaroo is drought because even though the Red Kangaroo can go for a long time without water, they need access to green plants in order to survive. Drought doesn't allow green plants to grow, so Kangaroos die down increasingly. Bottlebrush, Chenopods, newly sprouted green grasses, and Eragrostis setifolia are all things that the Red Kangaroo needs to survive. In order to rebound as a population is no drought and plenty of green grass that can survive even without rain. WWF Global 200 Ecoregions -- Northern Australia and Trans-Fly Savannas. (n.d.). National Geographic - Inspiring People to Care About the Planet Since 1888. Retrieved October 17, 2011, from http://www.nationalgeographic.com/resources/wildworld/profiles/g200/g090.html WWF - Northern Australia & Trans-Fly Savannas. (n.d.). WWF - WWF. Retrieved October 17, 2011, from http://wwf.panda.org/about_our_earth/ecoregions/australia_transfly_savannas.cfm Question Six 6. Cane toads are invasive to this area. Nothing can kill them because their skin is poisonous. They kill animals in this area. They can't removed; nothing is a predator. Question Three: 3. Map of interrelatedness on sheet of paper. Northern Australia + Trans-Fly Savanna Question Seven 7.A way to save this ecosytem is to stop land clearing. Another way to stop introducing species to this area. Question One: 1. Biomes are large parts of the world with similar biotic and abiotic features. Ecosystems are smaller parts within those biomes that contain abiotic and biotic features that work together. Question Two: 2. This is an ecosystem because every biotic and abiotic feature help each other. Ten biotic factors include: Short beaked Echindas Red Kangaroos Swinhoes snipes Magpie Geese Green Sandpipers Great billed herons Comb-crested Jacanas Plumed whistling ducks Asian Dowitchers Agile Wallabies Five abiotic factors include: Water Sunlight Sand Gorges Fire

Ecology Assessment

Transcript: Endemic - Something that is restricted to a certain place. Native - The place that something originated from. Maui's dolphins are endemic to New Zealand because it is only found in New Zealand. They are endemic to the North-West coast of the North Island, between Dargaville and New Plymouth. They are native to New Zealand. The conditions in the habitat are well suited for Maui's Dolphins most of the time. Unfortunately, sometimes stray fishing nets and nylon nets make it into the dolphins habitat. These nets end up strangling the dolphins, but fortunately the habitat does provide an adequate amount of food for the dolphins. People in New Zealand are trying to make up for the loss of dolphins by making their habitat sanctuaries. Fish Maui's Dolphin Popoto Cephalorhynchus hectori maui -Katherine Song Bibliography: http://wwf.panda.org/what_we_do/endangered_species/cetaceans/about/hectors_dolphin/mauis_dolphin/ http://mauidolphinrecoveryproject.blogspot.co.nz/ http://www.wwf.org.nz/take_action/maui_s_campaign_/sightings2/ http://www.hectorsdolphins.com/news-releases.html Smaller Fish What Does The Word Endemic Mean For Maui's Dolphin and Where Can You Find Maui's Dolphin? What are the conditions like in this habitat and what does the habitat provide for Maui's Dolphin? Maui's Dolphin Animal Plankton The population numbers of the dolphins are slowly diminishing because the dangers of fishing nets are too great. The dolphins regularly get caught in these nets. Once they get caught in these nets, they struggle. The more they struggle, the more tangled they get and in the end this results in death.There are only around 55 dolphins left and every death makes a huge difference. Unfortunately, the dolphins produce slowly which means the population of the dolphins barely ever increase. They only become sexually mature once they are at least 7 years old and once they do mature, they only breed every two to three years.World Wildlife Fund is helping New Zealand set up a sanctuary from Maunganui to the Whanganui river mouth. They are also planning to set up sanctuaries for harbors that are up to 100m deep. Orca Whale Plant Plankton Population Numbers: Squid Sharks Ecology Assessment Task Maui's Dolphin finds, eats and kills fish on the sea floor. They also eat squid. Orca whales and sharks eat the dolphin but they are mostly threatened by stray fishing nets and nylon nets. Maui's Dolphin are part of the fifth trophic level. An important adaptation of Maui's Dolphin is that the fin is rounded. This shape helps the dolphin propel itself faster through the surrounding bodies of water. Another adaptation is the think layer of blubber underneath their skin. The blubber helps the dolphin insulate and trap in heat. The dolphins are swimming around in cold water so they need the heat. The greyish-black tones of the dolphin's skin help the dolphin camouflage in the water. This helps the dolphin immensely because it conceals the dolphin from potential predators that are roaming around. All three of these adaptations are structural adaptations. Food Chain: What Does Your Organism Eat, What Eats Your Organisms and What Trophic Level Does It Belong To? Adaptions:

Ecology Summative Assessment

Transcript: ARCTIC Christina Vu Ecology Summative Assessment Date 1 Hierarchical Subsystems of an Ecosystem Hierarchical Subsystems of an Ecosystem What biome is the arctic in? The arctic ecosystem, is a tundra/marine biome. It has a mixture of on-land life and marine life, that affect the way that each organism lives either on land or marine. Biome What is a ecosystem? An ecosystem consists of all the organisms and the physical environment with which they interact; a biological community of interacting organisms and their physical environment Ecosystem Description of geography Conditions typical of Arctic lands are extreme fluctuations between summer and winter temperature; permanent snow and ice in the high country and grasses, sedges, and low shrubs in the lowlands; and permanently frozen ground, the surface layer of which is subject to summer thawing Geography Species in community Species seals walrus whale polar bear penguin Community Interactions Community Interactions and Symbiotic Relationships Species in ecosystem Species polar bear arctic fox narwhal walrus arctic hare bowhead whale seals ice algae fish zooplankton pytoplankton jellyfish Symbiotic Relationship Symbiotic Commensalism: An example of a symbiotic relationship is how the arctic fox instinctively knows to follow the caribou since the caribou helps the fox get its food as well by unintentionally digging up subnivean mammals as it finds its own food to eat. Limiting Factors Limiting factors Aboitic and Biotic Abotic and Biotic Aboitic factors: permafrost cold wind small rainfall little sun pools of water Biotic factors: low shrubs lichen herbivores (caribou) carnivores (fox) Affecting the ecosystem Biotic factors such as the presence of autotrophs or self-nourishing organisms such as plants, and diveristy of consumers also affect an entire ecosystem. Affect Abotic factors affect the ability of organisms to survive and reproduce. Abiotic limiting factors restrict the growth of populations. Density Density Independent Factors: Temperature, permafrost, wind, and rain Dependent Factors: Animal competition between the musk ox and the caribou. Both of these animals are herbivores whose diet's consists of plants such as lichens, sedges, and grass. Feeding Feeding relationships and Energy Species obtain energy Energy Zooplankton: sun Fish: Zooplankton Penguin: Seals Seals: Polar Bear Food Web Food Web Trophic Levels Trophic Predator-Prey Relationship Polar Bear adaptation: sharp nose stealthy stalking ability sharp teeth small head long neck and jaw Predator-Prey Ringed Seal adaptation: sustained dives reaching depths of 300 feet submerged for up to 45 minutes Photosynthesis, Cellular Respiration, and the Carbon Cycle Cycles Carbon cycle Carbon cycling During arctic summer, warmer temperatures thaw the uppermost layers of permafrost, allowing microbes to break down previously frozen matter. This process releases carbon dioxide into the atmosphere Photosynthesis Photosynthesis Photosynthesis is the process by which plants use sunlight, water, and carbon dioixde to create oxygen and energy in the form of sugar Cell Respiration Cellular Respiration Cellular respiration the process by which organisms combine oxygen with foodstuff molecules, diverting the chemical energy in these substances into life-sustaining activities and discarding, as waste products, carbon dioxide and water Behavior Animal Behavior Survival Behaviors of the Polar Bear and the Ringed Seal Survival Polar Bear Behavior sleeping behavior social behavior agression: mating, protecting, food body language & vocalizations to communicate defense: making themselves look bigger Polar Bear Ringed Seal Behavior defense: biting and thrashing (last resort) cut and maintain breathing holes developed mobile pupil and membrane that covers their eyes while swimming fast front flippers and torpedo shaped bodies enable them to reach top speed and launch out Ringed Seal

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