Pig Face
Carpobrotus Rossii
There are about 30 different species of carpobrotus Rossii (Pigface) around the world. In Australia there are four species which are seen mainly in coastal areas on sand dunes. Pigface is a succulent plant that spreads up to 2 or more metres, flatly across the ground with thick waxy succulent leaves growing up to 100mm long and has large daisy like flowers which grow about 45mm in diameter. This plant usually has purple petals with a white or yellow centre. fruits and leaves are edible. ‘The water stored in the leaves act as storage organs enabling the plant to survive hot dry summers on coastal cliffs and sand.’ (Unique Flora of Tasmania, 2016)
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The position is called a trophic level. For example, fox eats birds, so if the food chain contained a fox and a bird then the fox would be at a higher trophic level then the bird.
(outdoor education 2nd edition, natural environments)
Energy Flows
All energy used by living organisms ultimately comes from the sun. energy enters living systems through photosynthesis by plants and some bacteria. (MHHE, N.D)
Ecosystems maintain themselves by recycling energy and nutrients obtained from external sources. At the first trophic level of primary producers i.e. plants and algae, use solar energy to produce organic plant material through photosynthesis.
Herbivores make up the second trophic level. Predators that eat herbivores comprise the third trophic level; if larger predators are present they are then represent a higher trophic level. Organisms that feed at several trophic levels are classified at the highest of trophic levels at which they feed. Decomposers breakdown wastes and dead organisms and return nutrients back to the soil. (Future Direction International,
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Decomposers process a large amount of organic material and return nutrients to the ecosystem in inorganic form, which are then taken up again by primary producers. Energy is not recycled during decomposition, but rather is released, mostly in heat. (Annenberg Learner, n.d)
Part 3
Human Impact on the South Port dune system
Humans have adversely affected the South Port sand dunes particularly the biophysical processes occurring in the accretion cycle and on the flora and fauna in the biosphere. People, especially boot campers, are walking or running in the wrong areas causing cliff faces to gradually collapse. There are also people camping in areas that there should not be campers, council has had to remove tents and mattresses as a consequence. (Jock Conlon, 2017)
Other impacts have been caused by the following human activities:
Negative:
• Disruption of sediment (sand) flow
• Coastal Development- golf courses, houses, surf
Another connection would be a lily pad and a pond because the lilly pad needs the pond to live in and get food. A similar relationship can be seen between a frog and a pond (ISN pg. 31). The frog uses the pond and the plants use the pond, then the deer would eat the plants. How Energy and Nutrients Flow Through an Ecosystem
To maintain life, organisms must be able to convert energy from one form to another. For example, in the process of photosynthesis, algae, plants, and photosynthetic prokaryotes use the energy from sunlight to convert carbon dioxide and water to glucose and oxygen (a waste product).
Another ecosystem that I use each day is the nitrogen cycle. This is the process that consist of three
As the energy moves through the system, nutrients also travel through the levels of the food chain through the predator prey feeding cycle active in the food chain. To summarize the nutrients are cycled through the food web and the energy is not.
Boys are often cruel to each other, but in a joking manner. That is not the case for Piggy. He is the subject of relentless bullying on the island. Based on how the boys talk to him, act towards him, and how Piggy acts proves to readers that the boys are awful to him.
Provide a brief intro in which you identify the character whose life became brighter once the Pigman entered it:
In the upper levels we see a number of fragmented bone which may suggest that they began to eat more from each animal killed. Perhaps animals became scarce therefore they began to explore the taste of bone marrow.
Each step in a food chain is a “trophic level” because of the energy transfer between them which can be shown in energy pyramids. All of the energy that passes on originally comes from the sun before moving through the order of the trophic levels, which is from producers to primary consumers to secondary consumers, then eventually to tertiary consumers. Although, as one lifeform eats another for energy, only 10% transfers to the next level because that 90% is used to “carry out the functions of living, such as producing new cells, regulating body temperature, and moving,” or for other necessary tasks. These transfers through eating are important since they help maintain ecosystems like the Everglades Hardwood Hammock. (Arms,
tides. There are also many programs which help to ensure the stabilization of dunes, these include the planting of new vegetation to combat erosion, fencing and designated
An ecosystem is a community of interacting organisms and their environment. If one of the organisms is disturbed, it can change the trophic cascade which is a sequence of impacts down the food chain. Hannibal supports this statement by writing “keeping these connections going ensures healthy, functioning ecosystems, which in turn support human life.”(578) An example of this is if all of the beavers died the other organisms would go somewhere else or die due because they no longer will have dams to support their ideal habitat.
Seahorses are secondary consumers. Secondary consumers are mainly carnivores, they eat other animals. Omnivores, who eat plants and animals are also called secondary consumers.
Energy from respiration powers all the processes of life. Some energy is released as heat. Other activities include:
Many times in a story what the main characters say can reflect their personality and lifestyle. This is shown effectively in the memorial epic by Paul Zindel, The Pigman. Throughout this stunningly truthful story, John and Lorraine consistently say things that show just what type of people they are.
In the ecosystem organisms rely on each other for food and protection. The Food chain is like a pyramid you have the producers, primary consumers, secondary consumers, tertiary consumers, and quaternary consumers. It’s an almost perfect balance and if any level were to just stop existing then the food chain would be destroyed. An example of organisms relying on others is an issue of isle royale were the wolves and moose population are in jeopardy. This relationship is important because without the other animal the population would die.
This in turn would lead to more consumption at the top of the food chain, eliminating the predators to creatures at the lower end