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| http://commons.wikimedia.org/wiki/ |
- Examples of Parasitism could be found in the burls of oak trees. A burl is an abnormal growth on a tree caused by by stress, usually from insect infestation. In that case the insect is benefiting by having an area to live. The tree is harmed by having this abnormal growth, but not killed.
-Commesalism can be found when looking at the the nesting of birds on the island when a blue jay makes a nest in the tree, the tree is not affected, but the blue jay benefits from having a place to live.
-The squirrels of the Isle have a mutualistic relationship with the oak and pine trees. When the squirrel gather and eat the acorns and pine cones of the trees, it is getting food. At the same time, the little guy is spreading and planting the trees seeds.
-Competition Intraspecific was noted when I saw a group of fur trees, and was was growing in a j-shape. It was in competition with the other furs around it for sunlight and had to grow differently to get that light. This can also be caused by stress or breaking as a sapling.
-Interspecific competition can be observed between the squirrels and the chipmunks in the ecosystem.
both animals are competing for the same food and habitat to live in.
As a group we found a micro habitat with the old fallen trees that can be found among the trees. On one that we saw there was moss coming out of the rotten wood and even some sprouting grass, These areas also provide a good home for insects such as ants and termites. It stands out because most of the other forest floor is just ground and fallen tree debris that doesn't support life as well as the rotting wood.
The white tail deer (Odocoileus virginianus) are very prevalent on Presque Isle. In an area like this the only real predator that the deer has is the human car. The deer plays a role by eating the under brush of the forest and fertilizing with its droppings. They also bring a lot of people to the Isle to view the deer up close, because the local deer are not that scared of humans.
Biogeochemical cycles of Presque include photosynthesis done by all the plants and trees. The nitrogen cycle is carried out through the dead and rotting plant debris and dead animals. The H20 cycle is also at work on the island, bringing water to the plants and animals to live.
-Commesalism can be found when looking at the the nesting of birds on the island when a blue jay makes a nest in the tree, the tree is not affected, but the blue jay benefits from having a place to live.
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| http://commons.wikimedia.org/wiki/File:Blue_Jay |
-Competition Intraspecific was noted when I saw a group of fur trees, and was was growing in a j-shape. It was in competition with the other furs around it for sunlight and had to grow differently to get that light. This can also be caused by stress or breaking as a sapling.
-Interspecific competition can be observed between the squirrels and the chipmunks in the ecosystem.
both animals are competing for the same food and habitat to live in.
As a group we found a micro habitat with the old fallen trees that can be found among the trees. On one that we saw there was moss coming out of the rotten wood and even some sprouting grass, These areas also provide a good home for insects such as ants and termites. It stands out because most of the other forest floor is just ground and fallen tree debris that doesn't support life as well as the rotting wood.
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| http://commons.wikimedia.org/wiki/File:Whitetail_doe |
Biogeochemical cycles of Presque include photosynthesis done by all the plants and trees. The nitrogen cycle is carried out through the dead and rotting plant debris and dead animals. The H20 cycle is also at work on the island, bringing water to the plants and animals to live.
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