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Archive for the ‘Pond’ Category

Pond

My grandparents have a small, man-made pond in their yard. There are a lot of different frogs and fish that live in their pond. My grandfather has lived in our small town all his life, and our family has kept a pretty decent record of events in the town. Its really interesting, because he knows basically everything thats gone on in this town since it was founded. Behind where the pond is now, there used to be a railroad track and we can even find Native American arrow heads sometimes out in the woods. Only a couple of decades ago, all the places where our houses and neighborhoods and schools and stores are, there used to be just woods. And the woods were just everywhere, and now so many people have moved here and we’ve taken up so much space. We’ve gotten rid of so many trees and places for the native animals to live. We’ve seen coyotes and deer and turkey and many other animals in the woods. Its really suprising how the land we live on now really used to belong to so many other animals, and we’re just pushing them out, more and more all the time. http://www.freefoto.com/images/15/37/15_37_73—Woods_web.jpg

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Ecology Walk

Last Thursday, we went on a nature walk with our biology teacher, Mrs. McCarron. We walked outside to the pond just outside our school. Though it is pretty polluted and gross, there is living organisms that inhabit the pond. These organisms affect the others survival. For example, the turtles eat the small fish and frogs. If the fish and frog population got smaller so would the turtle population. The turtle population also controls the fish and frog population. If the turtle population went down without the fish and frog population going down then the fish and frog population would become overpopulated and their food would become scarce. Wether they are controlling the population or providing food for another, different organisms affect other organisms survival.

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MY BLOG

The Unabridged Tale of One Biology Class Hopelessly Lost and Against all Odds in the Uncharted Pentucket Territory

Good Sirs and Madams,

In our biology class, we went out of the civilized world and journeyed into a Land Lost of Time. This sector that our class explored was, as we soon discovered, a watering hole of sorts, filled with strange specimen and dangerous traps. On this heroic quest for knowledge we began to learn about ecology and the flow of energy throughout the animals and plants. For example, a plant produces eneregy from the sun by photosynthesis. Then the plant is eaten by the primary consumer like a wild antelope or a graceful butterfly and the energy is thus transmitted. This energy may then flow into another animal like a mystic wolf or feral cougar. On the ramble through the thick grasses and uneven roads, my patrol and I saw many phenomenal and noteworthy specimen.  Of these, one of the most notable was a marine fish in which we decided to name John Cleary, after the swashbuckling resemblance to one of my fellow classmates. These fish, we deduced  were at the upscale side of the food chain because of two reasons. One being that they were not plants and two being that they appeared to eat smaller organisms. Then, a thought of genius dawned upon one of my fellow troops that if the fish/John Cleary were not the primary producer then what was? A classmate pointed out that usually primary producers were green and so we began to suspect that the frogs were maybe the primary producer. Eventually we realized this was not so because not only did the frogs not photosynthesis but they also consumed organisms. If they consumed other organisms than they would be a consumer not a producer. Over the course of many minutes filled with illustrious and bitter arguing it came to the unanimous vote that the grass, algae, pond weeds, and other plants were the primary producers. The energy from these producers was consumed by smaller organisms which were then consumed by the frogs and fish. By this time it was pretty far into the period but the bell was not scheduled to ring for ten whole minutes. For fear of starvation our class had to resort to cannibalism. While eating some nice Homo Sapien I had a brain blast in my head and saw just how much organisms rely on other organism for survial. For example, if all the plants died then how would we survive? This is very scary and we should recycle to save to the trees.

From

-Ben Craig

(This wolf is at the top of its food chain)

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On Tuesday morning our class took a walk around the nature filled fields of Pentucket. I was surprised at the amount of wildlife that was hidden in the pond, fields, streams, etc. One of the first things we observed was the fish in the pond. I had no idea there was anything living in the pond, but there were actually many fish, frogs, and even a turtle! The fish were hard to see because the water was murky, and the frogs were very elusive. The turtle was camouflaged by the surrounding mud. There were also many plants surrounding the pond such as cattails and skunk cabbage. The plants are considered producers and primary consumers such as the turtle eat them. Secondary consumers like an eagle would eat the turtle. Each organism provides energy for the animal that eats it. If one element of an ecosystem was removed, then the rest of the ecosystem wouldn’t be able to function. For example, if you removed the plants or producers from an environment, then the primary consumers would suffer causing the rest of the food chain to crumble. Organisms depend on each other for energy, for nutrients, for shelter, and in order to make an ecosystem complete. 

-Calleigh L.

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In class last week we took a walk around the pond observing the animals and the wildlife. I noticed how the pond was covered in algae and there were many cat tails coming out of the pond, and other grasses coming out of the murky water. I noticed how the fish relied on the algae as food and without it the pond would have no fish, and without the fish, the  pond would be overgrown with algae. I also saw frogs in the water trying to catch the flies that were all around the water. Just like with the fish and the algae the frogs also rely on the flies to survive and without the frogs the fly population would grow out of control and without the flies, the frog population would go almost extinct.

                                              

Another animal I saw was a baby turtle in the water. The baby turtle, like the fish, also relies on the algae as a source of energy. So far I have learned that the algae are an example of a producer and the fish and frogs are an example of a consumer. The flies are an example of a primary consumer.  In conclusion, the algae provides the fish and turtles with energy that it gets from the sun, and the flies provide the frogs with energy however the flies get there energy from other organisms that are producers. All of these predictions about the outcome of a species population depending on what happens to their food source are not completely accurate because the species all have more than one source of food.

Kristin F

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Tuesday’s Walk

On Tuesday morning, our biology class took a walk outside to observe nature. As we walked around the pond, we noticed many aspects of nature. During the beginning of our walk we saw a school of fish, which I had never noticed in the pond before. The fish would interact with eachother alot. It was interesting because it seemed like the fish were guarding each other, or trying to keep each other safe.  We also saw frogs and a turtle. When we got close to the frogs they hopped away into the murcky water, most likely because we frightened them. We saw a turtle sunbathing on a small, muddy island in the pond too. I don’t think he was aware of us because he never ran or swam off. Our nature walk was very successful.

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Organisms effect one anothers survival in many ways. Some organisms [producers]  make their energy directly from the sun, and are a food source for other organisms. Other organisms may eat these organisms, and then another organism may eat that organism, and so on. If a producer dies out then the entire cycle of organisms getting their energy is changed, because in turn each organism that eats an organism that eats the producer will have lost a food source and have a harder time gaining energy. A parasite feeds off of another organism, and if its organism dies, then that parasite has got to find a new host. In addition, when an organism decomposes, scavengers and other decomposers eeat that organism. If these creatures didn’t eat the decomposing organisms, or did not have the decomposing organisms as food, then they would have a huge problem finding food. For instance, when I took a walk around the pond at my school, I noticed how organisms effect one another. My class, humans, caused a lot of fish int he pond to swim deeper as we approached, and frogs swam away as we tried to catch them. The frogs effected the water bugs by eating them.

I also noticed many intertwining food chains on our walk. I noticed that caterpillars ate the grass, and then birds would eat the caterpillars. Also, water bugs would eat smaller bugs, and then frogs ate the water bugs. There was also rodents of some kind eating grass and such, which were then eaten by a garden snake.

http://www.google.com/imgres?imgurl=http://www.arcytech.org/java/population/images/food_chain.jpg&imgrefurl=http://www.woodlands-junior.kent.sch.uk/Homework/fooodchains.htm&usg=____GbSuU4GGcFzazi_RP18O3EJuU=&h=291&w=484&sz=67&hl=en&start=29&itbs=1&tbnid=cuOQcZ1VnUDjhM:&tbnh=78&tbnw=129&prev=/images%3Fq%3Dpond%2Bfood%2Bweb%26start%3D18%26hl%3Den%26sa%3DN%26gbv%3D2%26ndsp%3D18%26tbs%3Disch:1 

The sun ultimately provided all the energy for these roganisms. However, grass, leaves, nuts, etc. provided energy as well, although not as much as could be obtained directly from the sun. Then smaller bugs and rodents would eat the grass, leaves, nuts, etc. The smaller bugs may be eaten by a frog, maybe a bird, water bugs, etc. A rodent would possibly be eaten by a snake, or maybe a beighborhood cat. The water bugs would be eaten by frogs, birds, etc. The food chain would go on and on.

If all of the plants died, this food chain would totally collapse. These organisms would have nowhere to obtain the nutrients and energy that they need. I would assume that over time, all the levels of the food chain would either die out, or be forced to find another food source.

If another organism died, dependign on the organism, the organisms feeding off of it would need to find a new source of food. Otherwise they would die. However, the organism or other source that this organism got their food from would probably grow in population, because it was not being eaten by that other organism any longer.

Its difficult to make accurate predictions of the ways other organisms would change without other organisms in their ecosystems. Organisms typically feed on a variety of things [unless they get their energy from the sun]. So, if one food source disappears, the organism may not be totally dependent on it as a food source, and simply may resort to eating a different organism. This would, of course, decrease the populations of the other food sources, and the organism who feeds on them may shrink in population size for lack of food. The delicate balance of an ecosystem is hard to really understand from all angles.

I noticed a lot of interesting things on my walk around my school’s pond. The trees more recently grew more leaves, and the grass has finally became bright green again with the changing of the season. The temperature fluxuates a lot still. however, because its still mid-spring. There were a lot of fish in the pond, which suprised me. I figured there wouldn’t really be many fish, or that they couldn’t live in the pond, just because its the school pond and I never really thought much about organisms living in the water. There were also a lot of medium-sized frogs, about the size of my palm, in the water. They were mostly immersed in the water, hiding in the weeds. Some of the members of my class tried to catch them with our bare hands, but the frogs moved too quickly in the water for them to suceed. There was also a bird flying, really high, circling around the field near the pond. There was also a lot of butter-cup weed-flowers, and other little weed-flowers. I saw duckweed too. There were ducks and geese in the pond, but they always stayed far away from my class. There were a lot of water bugs in the water too, and they moved really quickly ontop of the water.

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