Public Chronicles

Have you ever wondered how our Earth is sustaining life by keeping  all its biological (living thing) and non-biological components together. How bonds or interactions are built among both? An ecosystem is the minimal entity that has the properties required to sustain life. Earth is characteristics of ecosystems, not of individual organisms/populations. Life is sustained by interactions and functioning of many organisms together. Ecosystems ( ecological communities along with both biotic and a biotic components) form the baseline. An ecosystem consists of several species i.e Species which produce their own food Species which decompose the wastes of first species A fluid medium between two species. There are two processes taking place in an ecosystem i.e. A cycling of chemical elements Flow of energy No individual cell, population or community forms sufficient system to sustain / support life. In the presence of light; green plants algae and photosynthetic bacteria...

Today I found this little piece of information in my personal "archives". It was probably the first ever assignment submitted at the beginning of my professional studies. Its fascinating how human knowledge grows over time.......... "Changes in temperature affect aquatic life. Temperature determines which organisms will thrive and which will diminish in numbers and size. For each organism there is a thermal death point. Also there is a range of temperature of that produces optimal abundance. Climate change is a cause of increasing concern to scientists and it will have decisive effects on marine mammals. How climate change will affect the ocean, which is home to marine mammals, is hard to predict since there are many factors that affect ocean ecosystems but here my emphasis will be on the effect of rise in temperature on “whales”. Long time ago, due to environmental changes, Marine mammals evolved to live in the ocean, but the effects of climate change may be ...