Happiness

Self Reflection Today, I learn about the indicator species in ecosystem. The indicator species is the species that can be the parameter of the environmental condition. The indicator species can signal a change in the biological condition of a particular ecosystem, and thus may be used as a proxy to diagnose the health of an ecosystem. For example, plants or lichens sensitive to heavy metals or acids in precipitation may be indicators of air pollution. Indicator species can also reflect a unique set of environmental qualities or characteristics found in a specific place. I also learn about the condition and resources in ecosystem. Condition is Physicochemical features of the environment that may be altered by the activities of living organisms, but not consumed.   The example of conditions are temperature, relative humidity, pH, salinity, current velocity, soil structure and pollutant concentration. While resource is quantities of something that can reduced by the activitie...

Conditions and Resources Condition is Physicochemical features of the environment that may be altered by the activities of living organisms, but not consumed.   The example of conditions are temperature, relative humidity, pH, salinity, current velocity, soil structure and pollutant concentration. While resource is quantities of something that can reduced by the activities of a living organism during its growth and development. The example of resources   are solar radiation, inorganic materials - CO 2 , water, oxygen, mineral nutrients (macro-, micronutrients), food, and space. There are some effect of condition. They are: 1.       For each species, there is some level/concentration/intensity of a factor at which it does best - its optimum for that factor . 2.       Optimum conditions result in individuals with the highest fitness . 3.       Higher or lower levels of a factor result in r...

                                                      Indicator Species             An indicator species is an organism whose presence, absence or abundance reflects a specific environmental condition. Indicator species can signal a change in the biological condition of a particular ecosystem, and thus may be used as a proxy to diagnose the health of an ecosystem. For example, plants or lichens sensitive to heavy metals or acids in precipitation may be indicators of air pollution. Indicator species can also reflect a unique set of environmental qualities or characteristics found in a specific place, such as a unique microclimate. However, care must be exercised...

Nama                        : Nor Azizah NIM/Off                    : 150341600287 / A Nama Penulis Artikel : Samantha Marshall Sumber Artikel          : Samantha Marshall. 2011. The Water Crisis in Kenya: Causes, Effects and Solutions. Global Majority E-Journal Vol.2 31-45. Introduction There are about 40 million people living in Kenya, of which about 17 million (43 percent) do not have access to clean water. 1 For decades, water scarcity has been a major issue in Kenya, caused mainly by years of recurrent droughts, poor management of water supply, contamination of the available water, and a sharp increase in water demand resulting from relatively high population growth. The lack of rainfall affects also the ability to acquire food and has led to...