Every year, between 18,000 and 55,000 species become extinct. The cause: human activities.” he said ’.  Why conserve species: [Fig2] [Fig2] There are many advantages in conserving species not only the fact that we benefit from the diversity of animals and plants, as majority of our plants such as crops. Domestic animals are bred from wild relatives and can importantly benefit from the immense, scarcely tapped wild gene pools. Moreover important requirements such as medicine, ‘as well as sources of energy, fibres and structural materials, come from a few exploited species ’  that have been discovered.
Evolution has caused certain species to be completely reliant on one other species (Barton 6). The danger to plants and animals today is most often a direct result of human activities and human population increase (Plant). Biodiversity is a huge factor when considering the health of an ecosystem, a community of living organisms, and the physical environment they are dependent upon (Sayre 15). Land, water, air, and even noise pollution can make a habitat unlivable for birds and other wildlife (Sayre 2). Birds are a very important part of the national food web (Sayre 16).
Genetically modified foods with some of the advantages are potential to satisfy this need in a number of ways: • Pest resistance Crop losses caused by insect pests can spread over a period of time, and result in financial loss for farmers and starvation in developing countries (Whitman, 2000). In fact, farmers use many tons of pesticides annually. However, consumers do not wish to eat food that has been treated with pesticides because of potential health hazards. In addition, excessive use of pesticides and fertilizers can poison the water supply and endanger the environment. Developing genetically modified food such as B.t.
English Comp II Causes and Effects of Forest Fires Wildfires are caused by many different things. They can be sparked by lightening or human related activities. Regardless of their source of ignition, the effects of forest fires are both good and bad. As the monsoon season passes, vegetation from seasons past begins to dry out, raising the threat of forest fires. These fires have a variety of sources, such as man’s negligence, a natural occurrence like lightening, or an earthquake like the one that caused the San Francisco fire of 1906.
Due to forestation, they are losing their habitats. Loss of habitat can lead to extinction. This is not a biodiversity tragedy itself but might as well lead to negative consequences in various fields. One of them is the medicinal supply and researches. Besides, the deforestation will leave a huge impact on the local populations who depend on the forests resources to survive.
Although 1080 is bad for the environment, I think that it is working effectively. Now, about those issues… Firstly; are DOC’s attempts to eradicate New Zealand’s pests futile? Well, I think that DOC is doing a good job at protecting our wildlife and our environment by killing New Zealand’s pests, for example, possums, rabbits, stoats, ferrets, and weasels. But I suppose, if they were not, they would have been replaced years ago! Some good things DOC have done, are setting up various conservation areas and nature reserves, and lots of breeding and protection programs for native, endangered animals.
The droughts and increased heat has had negative impacts on local aquatic invertebrates. Aquatic invertebrates are adapted to survive in a particular range of temperature and habitat. But global warming makes it harder to survive. This could lead to the extinction of several species of aquatic invertebrates which in turn would lead to serious consequences of the ecosystem. Many of the aquatic invertebrates are responsible for keeping the ecosystem clean by feeding on litters.