This website uses cookies to ensure you have the best experience. Learn more

Biodiversity Essay

5433 words - 22 pages

BIODIVERSITY

Biodiversity is the part of nature which includes the difference in genes among the individuals of a species, the variety and richness of all the plant and animal species at different scales in space, locally in a region, in the country and the world and various types of ecosystems, both terrestrial and aquatic within a defined area. Biodiversity deals with the degree of nature’s variety in the biosphere.

Types of biodiversity
Genetic diversity - the genetic variability within a species.
Species diversity - the variety of species within a community
Ecosystem diversity - the organisation of species in an area into distinctive plant and animal communities.

...view middle of the document...

Some areas are more rich in species than others. Natural undisturbed tropical forests have a much greater species richness than plantations. A natural forest ecosystem provides a large number of non-wood products that local people depend on such as fruit, fuel wood, fodder, fiber, gum, resin and medicines. Timber plantations do not provide the large variety of goods that are essential for local consumption. In the long-term the economic sustainable returns from non-wood forest products is said to be greater than the returns from felling a forest for its timber. Thus the value of a natural forest, with all its species richness is much greater than a plantation. At present conservation scientists have been able to identify and categorise about 1.75 million species on earth. However, many new species are being identified, especially in the flowering plants and insects. Areas that are rich in species diversity are called ‘hotspots’ of diversity. India is among the world’s 15 nations that are exceptionally rich in species diversity.

Ecosystem Diversity 
There are a large variety of different ecosystems on earth, which have their own complement of distinctive inter linked species based on the differences in the habitat. Ecosystem diversity can be described for a specific geographical region, or a political entity such as a country, a State or a taluka. Distinctive ecosystems include landscapes such as forests, grasslands, deserts, mountains, etc., as well as aquatic ecosystems such as rivers, lakes, and the sea. Each region also has man-modified areas such as farmland or grazing pastures. An ecosystems is referred to as ‘natural’ when it is relatively undisturbed by human activities, or ‘modified’ when it is changed to other types of uses, such as farmland or urban areas. Ecosystems are most natural in wilderness areas. If natural ecosystems are overused or misused their productivity eventually decreases and they are then said to be degraded. India is exceptionally rich in ecosystem diversity.
A biodiversity hotspot is a biogeographic region with a significant reservoir of biodiversity that is under threat from humans. To qualify as a biodiversity hotspot on Myers 2000 edition of the hotspot-map, a region must meet two strict criteria:
1. it must contain at least 0.5% or 1,500 species of vascular plants as endemics, and
2. it has to have lost at least 70% of its primary vegetation.[14]
Around the world, at least 25 areas qualify under this definition, with nine others possible candidates. These sites vascular support nearly 60% of the world's plant, bird, mammal, reptile, and amphibian species, with a very high share of endemic species. Three regions that satisfy these criteria exist in India and are described below. For a more detailed information about these hotspots, go to theBiodiversityhotspots.org homepage
The Western Ghats and Sri Lanka

The Lion tailed macaque is a flagship species of the Western Ghats
...

Other Essays Like biodiversity

Biodiversity Essay

1313 words - 6 pages condemning them for their destructive capability. This also caused me to realize that some organisms, despite being detrimental to the human society, can contribute to the ecosystem in a positive way. Another insight I have gained from this practical was how human interference in the past can affect the biodiversity of the forest in the present. The forest that occupies Kent Ridge is a secondary forest called Adinandra belukar. “Belukar” means

Save Our Biodiversity Essay

976 words - 4 pages Biodiversity is the variety of all life forms on earth - the different plants, animals and micro-organisms and the ecosystems of which they are a part. Biodiversity: the HUGE variety of other animals and plants on our planet, together with the places where found. Natural heritage, an inheritance of fauna and flora, geology, landscape and landforms, and other natural resources Our planet is simply amazing. Viewed by someone not from our

Factors Influencing Biodiversity

732 words - 3 pages 3.1.1 Factors influencing biodiversity Globally, biodiversity levels vary widely across land and oceans. Both physical and human factors influence levels of biodiversity and these factors operate at a variety of scales from local to global. Global physical factors such as variations in climate, play a major role in controlling the presence or absence of limiting factors, such as: • Temperature • Availability of light • Humidity

Scientific Taxonomy and Earth's Biodiversity

829 words - 4 pages Scientific Taxonomy and Earth’s Biodiversity Axia College Introduction There are many forms of life that live on the Earth, which means the Earth is diverse. Most forms of life can be put into groups. Some groups would be the kingdom and the order. To be classified in a certain group, the species must consist of some of the same characteristics. All animals can be classified under the Animalia kingdom, which could also be called the

Why Does Biodiversity Vary so Much Between Different Scales

622 words - 3 pages Why does Biodiversity vary so much between different scales? Biodiversity can be defined in three different ways, such as genetic diversity, the number of different species and the range of different ecosystems within an area. Biodiversity is not spread evenly throughout the earth due to global factors, regional factors and local factors that affect biodiversity and cause it to be varied on such different scales. Human influences are also not

Assignment Scientific Taxonomy and Earth’s Biodiversity Paper

627 words - 3 pages Mammals Cheetah- the cheetah is a mammal who belongs to the cat family. It is unique in its speed, while lacking climbing abilities. It is the fastest animal. Panda- the panda is a mammal who belongs to the bear family. Though belonging to the order Carnivora, the Giant Panda has a diet which is 99% bamboo. The Giant Panda may eat other foods such as honey, eggs, fish, yams, shrub leaves, oranges, and bananas when available

Diversity

1762 words - 8 pages Chapter VII Biodiversity Hotspots and Conservation Priorities Why conservation efforts should be prioritized to certain zones A living fossil: Gymnocrinus richeri The Diversity Of Life On Earth Chapter VII: Biodiversity Hotspots and Conservation Priorities Introduction Chapter VII: Biodiversity Hotspot and Conservation Priorities Despite that biodiversity losses are occurring everywhere on Earth, some areas which are both

Economics of Bio-Diversity

2534 words - 11 pages ECONOMICS OF BIODIVERSITY & THE VALUE OF SPECIES: HOW DO WE ALLOCATE FUNDS TO PROTECT DIVERSITY? “Everything, whether measured in monetary or physical units, is amenable to economic reasoning provided it is scarce (or may become so in the future) and is appreciated by at least some members of the human community.” (Hampicke 1994: 219) INTRODUCTION Economics and the environment are inextricably linked, as natural resources are the

Geography notes

1179 words - 5 pages Arctic on the edge Explain the levels of biodiversity found in the Arctic • Extremely cold because of latitude • Only a few animals survive the climate – endemic species • Lack of sunlight and plants means there is a low amount of energy in the food web. This energy can’t support many species. • Low precipitation in the polar desert. • Geographical isolation and hostile climate. • Altitude • Lack of decomposition as

Outdoor Environmetnns Can Be Fun

431 words - 2 pages , crows, foxes, goats, sheep, cows Biodiversity -Biodiversity is the interaction between living and non-living organisms their differences and how they relate to one another in their natural habitat. -Biodiversity is important to people in many ways. Plants, for instance, help humans by giving off oxygen. They also provide food, shade, shelter, medicines, and fibre for clothing and paper.

Is Singapore the Worst Environmental Offender

1141 words - 5 pages Singapore and other developed nations such as the US, Japan and Australia follow the inverted relationship as they are ranked top polluters in the study, and thus to some extent questions the validity of the hypothesis. b) Mitigation Hierarchy and Biodiversity Offset The mitigation hierarchy is a descending order of measures in managing biodiversity risk. Its standard is that after all reasonable measures are first taken to avoid and

Related Papers

Biodiversity Essay

2090 words - 9 pages BIODIVERSITY Biodiversity is the degree of variation of life. This can refer to genetic variation, species variation, or ecosystem variation within an area, biome, or planet. Terrestrial biodiversity tends to be highest at low latitudes near the equator, which seems to be the result of the warm climate and high primary productivity. Marine biodiversity tends to be highest along coasts in the Western Pacific, where sea surface temperature is

Biodiversity Essay

533 words - 3 pages Explain how physical factors influence the distribution of biodiversity shown. (10) Explain how physical factors influence the distribution of biodiversity shown. (10) A factor which influences the distribution of biodiversity will be extreme climate. This is a limiting factor as it means that the species will need to be adapted to the environment, for example in the Antarctica this experiences extreme coldness, so the plants will need to

Biodiversity Essay 2013 Words

2013 words - 9 pages Biodiversity Lasnosha Snowden ENV 300 Environmental Science Nicole Minor June 15, 2015 All living organisms are present in ecosystems to coexist together to create biodiversity and without different species, these environment could fail horribly. Every living organism has a purpose in order to keep the balance of biodiversity. In order for there to be “biological diversity, these items are organized at many levels, ranging from complete

Biodiversity Essay 817 Words

817 words - 4 pages Biodiversity Paper Biology as a science concerned with living organisms, said organism’s function, origin, structure, and distribution is defined through numerous subdivisions and branches. Conservation biology is a branch, which deals with certain factors threatening biodiversity as well as the preservation of genetic and biologic diversity of animal and plant species. Threatened, endangered, and extinct species are only some factors that