Lesson 2 Ecosystem Dynamics

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Lesson 2 Ecosystem Dynamics

Pg 202-203 In this page we it explains how for some areas there are some living organims that are key fo this area. They area needs this animlas to survice, like for example as we can see in the 202 how beavers are essential in ponds so that other living things can live. In page 203, it explains how there are two kinds of disasters. Natural and human created disasters. Natural disaster, are disasters that are caused by nature like rain, storms, tsunamis, etc. Human created disasters are when humans mine, agriculture, pollute air and water, etc.

Explain: After a vocano or tsunami the biodiveristy will change because after the natural disaster the enviroments of the organisms wil be affected in some way, cuaisng their homes to be ruined. Having lack of reources and all might be what happens. I think the animals will have to immigrate to another enviroment since their homes are ruines, just like us humans would move in homes if they get ruined.

Analyz: A tsunami can reduce the carrying capacity of a coral ecosystem by damaging the reefs and blocking sunlight. This makes it harder for corals and the animals that live there to survive, leading to fewer fish and other sea creatures.

pg 204-205

Pg. 200- 201 Bacially what this talks about is how there is a biodiversity, what this means is that some animals can't handle some geographical places. For example, the text mentions how the giant sequia can only be found in places like the Califoria Floristic Province. In conlcusion, basically biodiversity allows contries to have their flora and fauna.

Explain: 1. If a new bird species arrives to area one, the charts will change, now having anew species of birds. If the area has the resources they need, then they will be able to adapt. 2. This will increase the level of biodiveristy in the area 1, making it richer. 3. They both have the same level of biodiversity, they both have 4 different species. Of course there are some differemces like in area 1 we have a lot of birds, however in area 2 we lack that large amount of bird. Area 2 has a richer level in amphians, contrasting with area one which lacks that large mayority.

Analyze: Scientifics can't just come up with one solution, simply because all the geographical areas have specifical weather conditions and resources.

Pg. 198-199 In this page it explains the differences between predation and competion. Predation is the process by which one organism, the predator, captures and feeds upon another organism, copetition is when two otrgnism compete for the limited resources, being any biotic or abiotic factor that both organisms needs to survive. In page 199 its talks about symbosis which is a close ecolohical relationship between two or more organims of different species that live in direct contact with each other. There are 3 differnet types, myualism, commenalism and parasitsm.

Explain: Symbiosis helps ecosystem stability by using resource availability (ex: pollination). However, it can hurt stability if one species dominates or if parasites weaken, leading to reduced biodiversity.

Analyze: yes, us humans are predators bevause we eat other organism like animals (pork, cows, etc.).

Pg. 196-197 in this page, it explains the differences between habitat and niche. A habitat is where species live and a niche is how species live within its habitat.