Biodiversity Worsheet Bio 280 Essay

Many species vital to ensuring that today’s environment will thrive are becoming extinct. If a species is slowly dwindling, and in imminent danger of becoming nonexistent, this species is considered to be endangered. “One in four mammals, one in eight birds, one third of all amphibians and 70% of the world’s assessed plants on the… IUCN Red List are in jeopardy” (IUCN, 2016). According to the International Union for Conservation of Nature, or IUCN, upwards of 16,000 species are threatened with extinction, including both plants and animals (IUCN, 2016). Before becoming endangered, a species will show warning signs, either by starting to lose biological diversity or by losing the habitats for that species to flourish in, or in the worst case, both. The word endangered can sometimes be confused with threatened, extirpated, or extinct. Extirpated refers to the state of a species where its population has died out in a certain area or range, but other populations of said species still exist elsewhere (Olden, Julian D., 2008). When a species is considered threatened, or vulnerable, this refers to the state of the species being susceptible to endangerment and extinction (“Extinction crisis escalates”). So if a species is threatened, the first signs of endangerment come along, which are similar signs to that of a species in danger of becoming threatened, including lack of genetic diversity, or overhunting may be evident. (“Extinction crisis escalates”). When a species is labelled

An endangered species is a plant or an animal at risk of becoming extinct. Scientists have estimated that up to one-third of species in the U.S. are at a high risk of extinction. In addition to donating millions of acres of land, this is essential to the recovery and survival of the endangered; the Act has shown a ninety percent recovery rate for species in the U.S. The main causes of endangerment include loss of habitat, excessive hunting, and pollution.

The categories that they get on the endangered list are: population reduction, restricted geographic range, small population size and decline, very small or restricted population, and quantitative analysis

Extinction: Most species become extinct because they can’t cope with the environmental change, and also because of introduced species that turned into competitors for

A species being threatened means that the species could soon become and endangered species without help. The Endangered Species Act is important because it protects the animals we have

Biodiversity loss threatens to disrupt the function of ecosystems, with the potential of consequences for humans as well. Often this loss is measured by species extinction rates, but considerations should be made to include population diversity with measures including changes in size, number, distribution and genetic composition of population and potential implications those changes may have (Luck et al., 2003). Avise (2004) goes as far as to say biodiversity is genetic

2. When a certain type of animal becomes so rare that it’s in danger of becoming extinct, the government can call it an “endangered species” to help protect it from disappearing forever.

An example of an extinct species is a emu, an emu was an animal that fought a war also known as “Great Emu War”And the emus won the war!The emus were not afraid of humans at all but that's not the reason why the war started! The Great Emu War started because emus would go on farmers fields and eat the crops.So the farmers couldn’t take it any longer so they called the ex-soldiers,and then they asked the minister of defence and he started a war between emus and humans

The three levels of biodiversity are as follows: diversity of the ecosystems, diversity of species within the communities and diversity within species. The loss of species within the ecosystems and within the community can cause a catastrophic result, as species live and feed on other species. Species close to extinction are endangered species, therefore protecting them from predators and offering the chance to reproduce and repopulate. Unfortunately, with little support within the environment, a species can become extinct due to population density. Proper monitoring of an endangered species is required in order to keep species actively reproducing and changing with the environment around them.

Since the beginning of life itself, some species have lived and prospered while other species have gone extinct never to be seen again by mankind. Because of this, some would claim that extinction is natural and not significantly problematic to the world that we live in. Others, however, understand that due to climate change, habitat loss, and poaching, more and more species are becoming endangered which leads to a chain reaction that can be devastating to ecosystems. Species such as the Chinook salmon, gorillas, tropical sharks, and polar bears are all directly affected by climate change, species such as northern spotted owls, Sumatran tigers, and lemurs are greatly harmed due to habitat loss, and species such as the sea turtle, Javan rhinoceros, African elephant, and the Red-Fronted Macaw are all affected by poaching driving them all closer and closer to becoming extinct.

in biodiversity is crucial now that we live in the anthropogenic age. A hot and debated

Wildlife biology is a field of biology in which land animals are studied. It deals with all animals with backbones and studies individual species of wildlife, their habitats, and surrounding ecosystems (Fitzgerald). It also studies how animals may interact with their ecosystem. Without wildlife biology we would not have extensive knowledge of other animal species, and how they could be linked to humans.

Endangered species help to gauge the health of ecosystems and can help individuals become more conscious of their environments and conservation issues around the globe. In recent years, various species and subspecies of rhinoceros have become threatened, endangered, and even extinct. One such subspecies, which was not only endangered, but has been declared extinct inhabitat as of June 26, 2013, is Africa's Western black rhino (Lavina, 2013).

Loss of Biodiversity will affect the life cycle of several species which depend on each other for survival. This dependence determines the survival of species and the change of our environment. Exploiting the biodiverse species to extinction will result in desertification, rise in carbon dioxide in the atmosphere, increased pollution, increased droughts, increase in loss of items that we derive from nature for our own survival such as honey, fruits, vegetables, medicines etc. The greed to exploit will result in our ultimate extinction If a sustainable solution isn’t provided to prevent loss of biodiversity. If we continue the path we are on without taking steps to balance the equation the planet will

Franck and Brownstone define biological diversity as 'the variety and variability of living organisms and the biological communities in which they live' (36). Decades of progress in both the scientific and political arenas have advanced environmental legislation to protect biodiversity at not only the ecosystem level, but for specific species and genetic material as well. Research has shown the importance of every organism and their role in the global ecosystem, and legislation has gradually matured to protect not only species which may become endangered, but the habitats they need to survive as well. Growing consciousness surrounding environmental issues has enabled these protections to be