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Order similar paper Have you ever thought that in the technological age people have almost forgotten about nature and the importance of protecting the natural environment? Unfortunately, it is a sad reality, but that is the truth we have to face. People do not really care that somewhere, far away from their comfortable homes, species of animals and plants are disappearing from our planet forever.
And it is good that teachers at colleges and schools ask their students to write an endangered species essay.
In this way they will make our youth aware of this problem. But, of course, the task of writing an endangered species essay is not an easy one. Here are some guidelines to help you with the task.
What to Write about First of all, your task is to define what endangered species are. You may say that these are organisms in the wild which once had a big population, but now their numbers are diminished and they are categorized as endangered species.
The organisms which do not exist anymore on the planet are considered extinct. We need to do everything possible to prevent endangered species from becoming extinct. Secondly, you may write about specific examples of endangered species.
Here you can mention tigers, giant pandas, snow leopards, the komodo dragons, and others. For more endangered species look through the Internet websites —there is a lot of information on the topic. It will be useful to talk about the reasons why animals and plants become endangered. For instance, one of the reasons is poaching. Poaching is a process of illegally killing rare animals for commercial benefits. As it is a criminal activity the animals can only be sold only on the Black Market.
The second reason is the loss of natural habitat. In these circumstances the wild animal species simply have no place to go. And even when they have somewhere to go, they cannot always resettle in a new habitat. As a result, they do not survive. The same applies to endangered plants.
Endangered Species Essay Sample and Writing Guide
They are often stolen and sold or are destroyed when humans need more farm land. As this second reason is also caused by humans only we can do something to help nature.
A paragraph dealing with some solutions would be appropriate here. The Earth has already witnessed five mass extinctions and is about to experience one more. More than 99 percent of total species, amounting to over five billion species that ever existed on Earth are estimated to be extinct Gaston and Kunin. But why does it happen? What are natural reasons for the species to disappear?
Usually, it is linked to habitat fragmentation and climate change.
But there also are other hidden reasons underneath them. There is one latent reason that lies in the bottom of animal and plant extinction and poses the single greatest threat to the biological diversity of our planet. Habitat fragmentation is destructive change to landscapes and environment that is caused either by natural phenomena, such as floods, hurricanes, and volcanic eruptions, or human activities, such as deforestation, construction, artificial land drainage, and changing land use for agriculture.
If the habitat is reduced in size or divided into smaller pieces, it tends to support smaller populations of species, which poses an increased risk of a genetic diversity that influences long-term survival of the species.
If the environment is demolished it forces inhabitants to flee from the territory, they adapted to for hundreds of years and migrated to a different environment. If they are not able to adapt to changes, one of them will be pushed towards extinction. Another cause of the extinction is climate change, which is the change in the distribution of average weather patterns, which can last for an extended period of time, like millions of years.
While the energy output of the Sun and rotation of our planet are unabated, the density of the ozone shield and greenhouse gas concentration are in limits of reach and humanity fails to maintain it. The depletion of the ozone layer is only caused by human-made chemicals, such as chlorofluorocarbons CFCs and other halogenated ozone depleting substances and enables more UV to come through.
The power of UV radiation affects the way plants form, timing the growth and development, metabolism, and distribution of plant nutrient, which important implications for plant competitive balance, animals that feed on these plants, plant diseases, and biogeochemical cycles.
Rising temperatures of the oceans directly affect the metabolism, behavior and life cycle of marine species. For various species, temperature serves as a signal for reproduction. Changes in sea temperature could have an impact on their successful breeding. Changing climate could, therefore, skew sex proportions and threaten population survival. Rising temperatures in the oceans will also affect the development and population of the plankton which forms the basis of marine food chains and fixes about half the carbon dioxide that gets released into the atmosphere.
Sea level has been growing over the past century, and the rate has risen in recent decades. The increase of the sea level is usually linked to two primary factors: Increasing sea levels due to climate change may have a great influence on the coral reef ecosystem.
They live in a symbiotic association with photosynthetic zooxanthellae. Zooxanthellae needs the sunlight to produce the nutrients necessary for the coral. It is affecting certain animal species at the North pole. One such species are the polar bears. They usually rely on the ice sheets that swarm on the Arctic sea to find their prey.
Global warming is making the ice sheets to melt earlier every year, affecting the survival of the polar bears Ma. Scientists have predicted that the polar bears will not survive an entire loss of sea-ice cover during the summer.
They also estimated that the population of the polar bears is of a little more than 20, and that this number could decrease by the year Ma. It has been shown that the primary natural causes of the animal extinction are habitat fragmentation and climate change which include rising of the sea levels and melting ice sheets and glaciers. Despite the reason why the endangered species become extinct, it looks like it is somehow triggered by the human activities which we need to rethink to save our planet.
The Biology of Rarity.
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