Summary Response#1 Ecological Effect on Human

According to LexisNexis’s article (2008, Jan. 15) “Sea otter reveals striking variability in diet and feeding strategies” (2008), individual dietary diversity of sea otter may not be representative of that of the whole population when there is limited resource available. Feeding strategies appear with individual sea otter which live on special kinds of prey where feed is limited. Usually, when food is limited, populations of ecology promote various food sources. However, the dietary diversity does not reflect individual diets of sea otter. Although the sea otters prefer red sea urchins, which are plentiful in San Nicolas Island, otter in San Nicolas also eat marine snails and crabs. And yet, the way they feed is not too different between a whole and individual when it comes to dietary diversity. Additionally, scientists already knew that limitation of the food also limits the Central Coast sea otter population. But, it has not been figured out yet whether there is a connection between individual specialization and resource available. Therefore, people have not figured out exactly why sea otter population does not move along to the areas where they could find abundant food.

This article gives us examples about environmental change people have studied all over the world. Humans should ceaselessly keep watch and observe environmental change on the earth because of three reasons, which are that humans can react to disaster before it happens on the earth, that environmental problems can be treated easily in the first stage, and that it can be adapted to human’s health.

First of all, people can prepare for disaster before it happens. Before a disaster occurs, all animals can perceive it. For example, when the tsunami, which is the overflowing of the sea, happened in Thailand on December 26, 2004, all wild animals tried to move to safe places because they already perceived what would happen by feeling the shaking of the ground. However, people who were there could not predict the tsunami. Because of that fact, the death of thousands of people was an imperative fact. Therefore, people can prevent their life from natural disasters by observing environmental change.

Second, people can easily treat ecological problems and destruction of environment in its incipient stage. Every phenomenon can be solved easily by reacting earlier than when it becomes serious. For instance, lack of trees around the world is becoming a serious problem because it causes many problems such as loss of soil and habitats where wild animals live, and pollution of atmosphere. People have cut trees which function in as purifiers and as habitats to get fuel and paper. In addition, unfortunately, people did not plant enough new trees or realize the importance of trees on the earth until after they are influenced, for example by air pollution and animal extinction. If people had known that fact early, it would not have been a serious problem. Therefore, people should preserve the environment by observing.

Third, study about ecosystem and environment can affect human’s health in the affirmative. Human is also a part of ecosystem. So, ecological change by environmental pollution also can affect humans. As an example, there annually happen infectious diseases for chicken in Korea, which are called A.I. and can kill people. The first time that this disease developed, people did not know what it was. Accordingly, hundreds of people died of A.I. in its first year. But, now people can not only handle it, but they can also watch out at the time when this disease spreads. That is, people can keep their health and life by studying natural change happening on the earth.

In conclusion, if people ignore natural change, it will come back with badly real disasters to people badly; because of that fact, that environmental variation is a warning for natural disasters, environmental destruction, and ecological danger to human. Therefore, people should have more concern about variability in the environment.

REFERENCE

Sea Otter Study Reveals Striking Variability In Diets And Feeding Strategies. (2008, January 15). Retrieved October 21, 2008, from LexisNexis