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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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To Much Algae

    

Pentucket Pond

   

As I was walking around the pond yesterday I saw a frog leap in to the water. As the ripples from the frogs leap disturbed the surface of the water I saw a few fish. Seeing the fish was weird because previously I thought this algae infested body of water was able to sustain no life except the insects which floated on its surface along with the green and brown algae. Seeing this got me to wondering what if their was no algae on the surface? With that question on my mind I went off to find out what was the purpose of algae. I found that the purpose of algae was to oxygenate the pond. If the algae were for some reason to disappear I found that there would be no other plant to oxygenate the water which would cause the fish living in the water to die. I also thought what if the insects floating on the surface were to some reason disappear and I found that the fish would lose their food source and begin to die which would cause the algae to increase and over run the pond and then die. When algae dies it takes all of the oxygen with it which would kill the pond and make it uninhabitable. From my research I found that it is difficult to tell if something starts to die if it will die off completely or it is just being reduced to maintain homeostasis.    

                                                                                                                                Jeffrey H.    

      

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pond walk

On Thursday May 6th I went on a nature walk around a small pond. When on this walk I encountered many types of plant and animal life. For animals there were frogs and turtles. Some of the plants there were are milkweed, grass and dandelions. There were multiple frogs of various sizes. It was interesting to see them interact in there natural environment. The snapping turtle just kind of sat in the middle of the pond on a sandbar. One example of a plant there was was the skunk cabbage. Skunk Cabbage is an invasive species and when it reproduces it reproduces quickly. We also threw a walk into the pond and saw fish move around. There was bubbles floating up from the bottom of the pond and we knew that meant there were fish.

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Frogs

Leopard Frog

On thursday as we were walking on a nature walk around the pond we saw some pretty interesting things.  One of the main organisms that we saw were the frogs.  We saw alot of frogs.  Their were probably at least a couple hundred frogs in the one pond outside the highschool.  The frogs were in all different sises.  The bull frog we saw was about 3 inches long, and the other normal frogs were about 2 inches long.  The normal frogs were more interesting because they did not move when you got close to them.  The bull frog moved when we were not even five feet from it.  Some of the frogs also seem like they were eating the bugs in the water.  This is what frogs eat.  Overall my walk with the frogs was a very interesting and fun experience.

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animal.discovery.com

How do organisms affect one another’s survival?

Organisms can be separated into two main groups according to what they eat, autotrophs and heterotrophs.  An autotroph is a producer that makes its own food.  Heterotrophs are consumers and can be either carnivores (eat animals) or omnivores (eat both animals  & plants).

On the class trip outside I observed many things that support these facts about the food chain and ecology.  For example birds eating insects.  I also observed fish and their nests around the pond.  In addition, there were many different plants that help animals to survive by providing food for them,  the plants also help filter the water and provide oxygen.

An example of this in nature is that worms and other insects are eaten by birds and other animals to provide nutrients for the animal that eats them.  Also another example of this in nature is that plants provide energy for herbivores and omnivores.

If all of the plants died then so would all of the herbivores and the animals that feed on the  herbivores.  It would eventually lead to an entire disaster because all organisms would starve and die.

If one organism dies it does not have as much of an impact on the ecosystem than if an entire species because there would still bee food/energy to provide for all of the other organisms.

It is difficult to make accurate predictions about changes in communities of organisms.  This is because you never know if the organisms could make adaptations and still survive.  We would never really know until the situation actually happens.

Amanda C.

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Several organisms were just outside of Pentucket by the pond. Turtles, fish, and a large amount of insects; some of which I’ve never seen before. Several insects used plants to survive, by hiding in or on them. There was a turtle in the middle of the pond on a large mud pile. I thought it was a rock when I first saw it but everyone else said they saw it’s head move. When I leaned a little bit closer, I saw it’s eyes. It was frozen, trying to escape any danger that could come from us being there. The plants all help the turtle survive; giving it something to consume for energy. The fish, I would expect, eat the insects and algae that is in the pond. If the plants were to die in the pond, I would expect the turtle to die. If the plants and the fish were to die, the turtle would die and there would be a lot more insects around the pond, since there wouldn’t be any consumers of the insects. It’s difficult to make predictions about changes of the community of organisms because they could either die out, or adapt to their environment. But it is impossible to know unless it were to happen. Scientists could probably analyze the organisms around the pond and make a scientific prediction on if the turtle or whichever organisms are close to evolving or adapting.

 

Devin McFadden – Class A

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     Walking outside for a short 10-15 minutes was enough time for me to realize how much life is hiding out there. In the pond, there were many fish, frogs, bugs, et cetera, and I was surprised to even see a turtle. The amount of life found within such a small pond was exciting to of witnessed. I had no idea there was an entire world of living creatures just outside the school building. The producers being the many plants found around the pond, and the consumers being the many animals found within, I was very taken in by the ecosystem and happy to see so much life in what I thought was an empty pond.

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Nature Walk at PRHS

During our nature walk, I observed many different things.  One thing, that I observed for the very first time, was that there are actually fish in the pond in front of the high school.  I was amazed that fish could actually survive in that water.  Another thing that I had observed was that there was a lot of other organisms in the pond, from algae to turtles.  The algae was throughout the pond in various places and as the “fountain water” hit the pond water, the algae cleared.  Most of the turtles that we found were in the muddy, shallow parts of the pond.  There were also many different types of plants surrounding the pond.  The plants included skunk cabbage (eewww), and cat tails.  The skunk cabbage was stinky when picked.  I think that it smelled bad because when you pick it, you crack and expose the stem which expels a displeasing odor.  (But, I’m not sure.)  The cat tails looked like cotton on the top.  I made many observations during the nature walk.

All of these organisms interact with each other.  The algae in the water directly relates to the organisms living in it.  if there is too much algae in the water, the organisms, such as fish, will die.  Too much algae will cause the fish to have difficulty getting oxygen through their gills.  The plants around the pond also interact with their environment.  If their environment suddenly changed, the plants would die.  For example, if there was a sudden cold front or drought, the plants would die.  The organisms and their environment have to cooperate in an ecosystem.  All organisms and plants in an ecosystem interact and must work as a team in order to survive.

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At the school pond I noticed that despite the algae there were fish, frogs, and various plants. I thought algae in ponds or lakes was bad for the other life in that pond or lake. Maybe there is not enough to kill the other life, but just enough to create food for the fish and birds.  There probably is enough primary consumers to keep it in check.  I tried to catch a frog, but the algae and other plant matter provided good cover.  If there are so many frogs, I bet there are many flies to feed them.

Jacques L.

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Organism’s effect one another’s survival in many different ways. It all starts with the plants, which produce their own food. These organisms provide energy for other animals who eat them. These organisms are known as primary consumers. The animals such as insects and small animals that eat these plants are known as secondary consumers, and then come the organisms that eat the secondary consumers. If all the plants died in an environment,  many other organisms would also die off. For example, if all the grass/plants died, animals such as rabbits and insects that get energy from eating grass and other plants would either need to find another source of energy or they would die. If they found another source of food, they would then be in competition with others who originally lived off that source. If another organism such as a consumer died, it would result in a similar way. If rabbits died off, animals such as owls would then have one less source of food. The owls would not necessarily die off, but they would have one less source of food, therefore all be in competition for another source, such as snakes. The snakes population would then decrease due to the increasing number of predators. Although this is what may happen, it is difficult to make an accurate prediction about the actual result. This is a prediction, and until this actually were to happen, it is very hard to say what would result.

http://www.umaine.edu/umext/earthconnections/images/foodchain.gif 

– An example of a food chain and the way it works. The sun provides energy for the plants to make their own food. The primary consumer, the rabbit, then eats the grass to get energy. The owl, or secondary consumer eats the rabbits and finally, the mushrooms decompose the dying animals and/or their waste.

Now, on a more personal note; I took the time to take a short walk around the pond outside of our highschool. While on my walk I saw many different organisms such as frogs, ducks, fish and plants. All of these organisms interact with eachother in different ways. The plants use the sun’s energy to make their own food. Insects then eat those plants. The frogs then eat the insects to get their energy. In a way, the pond is its own small ecosystem. The animals/plants that live there have their own way of living and form their own small food chain.

Margo F.

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wasp hive in the bird feeder

In my backyard this afternoon, I noticed that in my bird feeder was a bee-hive. This hive was about the size of a softball. It had a dark gray-ish color to it, and it looked like it was made out of paper-mache. This old hive may have contained yellow-jackets from last season. Yellow-jackets are insects that sometimes pollinate plants. The plants are a producer, which means they absorb the energy from the sun. This energy flow continues through the yellow-jackets as it pollinates. Yellow-jackets do not tend to be big pollinators because they do not contain the hairs to retrieve the pollen. These yellow-jackets prey on many insects such as crickets, caterpillars, flies, and others. I was just taking a walk through my backyard and i saw a food chain. Stay tuned for more walks through the wilderness! (:

~Marina G.

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