Humans have Engangered the Columbia River Limpet

An endangered species is a species that is most likely to become extinct in the future. Just like being listed under the Endangered Species Act, or any act or treaty, is beneficial because you are protected by the government by law, it also has some downfall to it. Being a species listed under these acts is going to make you the main target for hunting. There are many endangered species all around the world but if we have to pick an important one, it would be the Sea Otter. The Sea Otter is, what we call, a keystone species because it helps maintain balance in their ecosystem. Sea Otters can be on land but they mostly spend their time in the ocean, where they live off of sea urchins. Sea urchins reproduce quickly and they feed off of the kelp forest,

The subspecies was also listed as a highest priority “Species of Special Concern” by the State of California (USFWS, 1998). There are many factors that play into why the Point Arena mountain beaver is classified as endangered. In addition to their low reproductive rate, according to USFWS (1998), the vulnerability of the mountain beaver results from two reasons: 1) few populations with extremely limited distribution; and 2) the number of individual populations are low. Habitat loss and fragmentation is another concern for the Point Arena mountain beaver, any disaster, natural or manmade, has the potential to impact the subspecies (USFWS, 1998). These threats include, elimination or degradation from land development, livestock grazing, transportation and utility corridors, invasion of alien plant species, and timber harvest (USFWS, 1998). Additional threats to the subspecies include, predation by feral animals and household pets, poisoning, human caused disturbances, clumped and fragmented distribution, vulnerability to localized catastrophic events, like fires, storms, landslides, flooding, prolonged drought, and/or disease, and most notably genetic isolation and drift (USFWS,

Within the Endangered Species Act, the U.S. Fish and Wildlife Service helps watch over and investigate the health of different species. Then, local and national scientist collects data to determine if a species gets put on the Endangered Species list. The main factor to determine the endangerment of a species is if a large percentage of the species’ habitat has been destroyed. Next, note if the animal’s population has been excessively decreasing, threatened by disease, or any terrorized by any predators. Also, record any man-made

The Anacostia river, a sanctuary for hundreds of plants and animals. One evening when I was cruising down this very river, I spotted a Bald Eagle. The first one I have ever seen in the wild. I was captivated by its grace, only to remember that it is an endangered animal. The problem that the Bald eagle has, as well as many of the others who live off the river is the river itself. The river is murky, and is contaminated with toxins from fertilizers, pesticides and other harmful substances. There is also unwanted ubiquitous pollutants that animals are sure to mistake for food, and the wetlands that surround the river were also damaged. Restoring the Anacostia River is problem that can be solved.

The Endangered Species Act of 1973 provides a program for the conservation of threatened and endangered plants and animals and the habitats in which they are found and deals with the perseveration of wildlife which is threatened with extinction. The U.S Fish and Wildlife services is the government agency entrusted with the enforcement of it provision.

The revolution to protect endangered species began in 1973 with Nixon at the reigns of it. Thus the Endangered Species act of 1973 was created. This act provides for the protection and conservation of endangered plants and animals as well as their habitat.

The article “Animals Survivors” explains solutions to a few endangered species. “With help from humans , some endangered species are bouncing back to the brink of extinction”. Scientists and conservationists help endangered species safe and grow. In safe environments, the animals are better able to survive with the help of humans.

The most basic classification in the Animal Kingdom is based on the presence, or lack of, a vertebral column. Organisms that have backbones are called “vertebrates” and belong to Phylum. More complex organisms such as mammals, birds, reptiles, amphibians and fish all belong to Phylum Chordata. Organisms without vertebrae are called invertebrates and constitute over 95% of the organisms in the animal kingdom. Examples of nonchordate invertebrates include sponges, jellyfish, insects, worms, squid and sea stars. Of these, sponges are among the most ancient organisms in the Animal Kingdom with fossils dating back to the Precambrian time. There is also a phylum of organisms that have characteristics of both vertebrates and invertebrates. Phylum

“What is an endangered species?” is a question that needs to be addressed before getting known of endangered species act. An endangered species is a population of organisms which is at risk of becoming extinct due to three possible reasons: it is few in numbers. According to the theory of Exponential Growth Curve proposed by Malthus, a lower population tends to have a lower reproductive rate and thus a higher risk of going extinct; or a species is threatened by changing environment. A species which fail to adapt a new environment by means such as mutation which creates new “fitting” genes tends to have a

The endangered species act passed in 1973 is the strongest law protecting the biodiversity of the United States today. For forty years the ESA has helped prevent the extinction of our nation’s wildlife treasure ("Endangered Species Act 101"), however, whether or not all of the environmental conservation victories can be attributed to the act is controversial. Especially when evaluating cases such as that of the bald eagle and California condor where there is evidence that suggest the recovery of the two species would have come naturally due to the ban of the pesticide DDT. This ban occurred before the passing of the act as well as the start of recovering for the birds of prey more the bald eagle in the western part of its range at the time, yet it can be stated that the endangered species act did bring an end to the poaching

The San Bernardino Kangaroo Rat (SBKR) is endangered and was put onto the endangered species list in 1998. There are several reasons why the SBKR is slowly decreasing in population, but the main cause is due to their habitat being destroyed by gravel mining, flood control, and urban development projects that undergo little to inadequate regulations. These flood control projects indirectly change the habitat by preventing flooding. The alluvial scrub habitats are classified as pioneer, intermediate, or mature in order of decreased flooding and increased density of the plants. The decreased flooding causes the desired intermediate scrubs to become “mature”, after depleting sand that would usually come after the flooding. Furthermore, due to

““The need for continuing intervention, even for recovered species, was not anticipated. We now face the conundrum that building on our conservation success will require long term investments” (Taylor, 2014). Craig Hilton-Tailor’s assumptions, or rather, hope; is that people will listen due to the compilation of copious scholarly studies reflecting the truisms of the past. “The overwhelming message from the results presented…is that the world is losing species and that the rate of loss appears to be accelerating in many taxonomic groups…but there are many case studies which show that well-focused and concerted species-centered actions can succeed in regarding threats and improving the conservation status of species and their habitats” (Taylor, 2014). “

In order to fix this problem, we as people should be more considerate towards the Roseate Spoonbills and other animals along with their habitat. I also think that the government should set up laws that protects a certain amount of land for the animals who live in the marshes and swamps because without the marshes and swamps, where would the animals go? As I stated before, we as individuals should start to clean up after ourselves, others, and maybe set up a fundraiser to earn the money to set up a safe haven for these animals in the

The Amazon River is located in South America. The Amazon River has the vastest biodiversity of all of the global rivers. The Amazon River has been around for 11 million years. The Amazon River’s current shape has existed for approximately 2.4 million years. The Amazon River starts at the Mantaro River (located in Peru) and empties into the Atlantic Ocean (on the northeastern coast of Brazil), and it is home to unique creatures such as the pink dolphin (Inia geoffrensis) and the Amazonian manatee (Trichechus inunguis), but the Amazon River is best known for its powerful currents that flow as strongly as the human heart pumps blood.

On average, the Lymnaea stagnalis, commonly known as the great pond snail, is less than five centimeters in length (Kemenes & Benjamin, 2009). Taxonomically, it is a member of the kingdom Animalia and the phylum Mollusca (Budha, P.B., Dutta, J., & Daniel, B.A, 2010). As a part of this phylum, the Lymnaea stagnalis possesses typical molluscan traits, such as a bilateral body and a foot on its underside (Dillon, 2000). In addition, great pond snails have two sensory antennae used for "vision" (Thorp & Covich , 2001). Taxonomists classify this organism into the class Gastropoda and order Hygrophila, because of its hard shell and lack of an operculum, a flap that covers the shell opening (Budha et al., 2010 ; Dillon, 2000). The great pond snail is part of the Lymnaeidae family under the genus Lymnaea and the species Stagnalis (Budha