Aquatic Biodiversity : Threats and Conservation

Biodiversity or Biological Diversity a sum of all the different species of animals, plants, fungi, and microbial organisms living on Earth and the variety of habitats in which they live. Each species is adapted to its unique niche in the environment, from the peaks of mountains to the depths of deep-sea hydrothermal vents, and from polar ice caps to tropical rain forests. According to the definition of the Convention on Biological Diversity, biodiversity is the variability among living organisms from all sources, including terrestrial, marine and other aquatic ecosystems and the ecological complexes of which they are part; this includes diversity within species, between species and of ecosystems.

flow in an ecosystem

Energy flow in an ecosystem

Saturday, March 4, 2017

Concept of an ecosystem

CONCEPT OF AN ECOSYSTEM

Rain water Harvesting

Rain Water Harvesting (RWH) is the process of collecting, conveying & storing water from rainfall.
The following methodologies are adopted for rain water harvesting:

• Roof Rain Water Harvesting
• Land based Rain Water Harvesting
• Watershed based Rain Water harvesting

INDEX

Natural Capital
http://mjcetenvsci.blogspot.in/2015/04/natural-capital.html

Environmentally sustainable City
http://mjcetenvsci.blogspot.in/2015/04/environmentally-sustainable-city.html

Schematic representation of Structure of an Ecosystem
http://mjcetenvsci.blogspot.in/2015/02/schematic-representation-of-structure.html

Natural Capital

Natural capital is the sum of natural resources and natural services. Examples of natural resources and natural services are listed below:

Natural resources:

• Air
• Water
• Land
• Soil
• Life (Biodiversity)
• Non renewable minerals (Iron, Copper, Sand)
• Renewable energy (Sun, Wind, Flowing water) and
• Non renewable energy (Fossil fuels, Nuclear power)

Schematic representation of Structure of an Ecosystem

Answers to Environmental Studies Questions

Biogas typically refers to a mixture of different gases produced by the breakdown of many organic matter in the absence of some oxygen. Biogas can be produced from regionally available raw materials such as recycled waste. It is a renewable energy source and in many cases exerts a very small carbon footprint.