Species may become extinct because of changes in climate (ie the ice age), competition with other species, a reduced food supply, or combinations of all of these most natural extinctions are isolated events that happen over a fairly long period of time some, however, are major events that can cause mass extinctions and. Natural disasters and processes were behind the five major mass extinctions in geological history, but the current “sixth extinction” is caused by success of one species – humans the six billion (and counting) people crowding the earth, are driving out biodiversity in a variety of ways species form and die. Human activities have caused some 500 bird species worldwide to go extinct over the past five millennia, and 21st-century extinction rates likely will of the major period when europeans began exploring and colonizing large areas of the globe -- birds have been going extinct at a rate of about one species. The leading problem is the decline in wild animal populations, sometimes to a radical degree, often diminishing the health of whole ecosystems viewing many now assume that we are in the midst of a human-caused 'sixth mass extinction' to rival the one that killed off the dinosaurs 66 million years ago. Animal extinction of most recent times is mainly the result of expanding human demand for animal and other natural resources explore these and other causes in depth here.
There are a number of factors that cause species to become endangered, but human destruction of natural habits is the leading cause learn how you can help. Although both normal and mass extinctions are usually tied to physical changes in the environment, biotic interactions also play an important contributing role competition, predation, parasitism, and disease all have their effects thus, south america was once inhabited by many marsupial mammals, much like australia is. Humans are causing the sixth mass extinction through continued development to advance the human race without consideration of the environmental impact ( eldredge, 2001) it is predicted three major causes of animal extinction are direct habitat destruction, over exploitation and introduced species. Natural causes of extinction climatic heating and cooling climate change is caused by a number of things the effect that climate has on extinction is very big the biodiverse earth can't keep up with the rapid changes in temperature and climate the species are not used to severe weather conditions and long seasons,.
An endangered species is a type of organism that is threatened by extinction species become endangered for two main reasons: loss of habitat and loss of genetic variation. Read this full essay on humans and animal extinction the beauty and curiosity of wildlife captivates all of us for different reasons for certain species, they are the link to our existence animals are not being hunted into extinction one major issue that has a major impact that should be talked about is species extinction. The team of geologists and biologists say that our current extinction crisis is unique in earth's history due to four characteristics: the spread of non-native species around the world a single species (us) taking over a significant percentage of the world's primary production human actions increasingly.
Human activity is the greatest cause of bird extinction around the world the top human causes of bird extinction involve: the increased human population, destruction of habitat (through development for habitation, logging, animal and single-crop agriculture, and invasive. Humans extinction for species humans deforestationdump garbage to the river due to that animals cant liveair pollution and environmental pollution are main cause for thishuman beings like us do not clear any thing and save the environmentdo not dump garbages to rivers save forests and clear the unwanted. There are many reasons that lead to depletion and/or extinction of wildlife across the world each by itself requires a ponderous tome to explain the ill effects the foreign species may overlap the environment of native species, changing the environment of the old species according to its own needs, thereby leading to its.
Hunting has been a major cause of the decline in elephant populations elephants became prized trophies for big-game hunters after europeans arrived in africa more recently, and more devastatingly, hunters have slaughtered elephants for their ivory tusks the ivory trade became a serious threat to elephants in the. The model answer for animal extinction essay write about the following topic: more and more wild animals are on the verge of extinction and others are on the endangered list what are the reasons for this what can be done to solve this problem complete the topic within 20 minutes write a 200-300 word essay. Next, have students use their save our animals student esheet to explore endangered and threatened species this resource will provide students with a basic orientation on the plight of endangered species, humanity's role, why protection is important, and how they can help in this vital cause encourage students to take.