Critically Endangered

This article is about the conservation designation itself. For lists of Critically Endangered species, see Lists of IUCN Red List Critically Endangered species.

The Beluga sturgeon (Huso huso) is an example of a critically endangered species. Their wild populations have been reduced due to overharvesting for its caviar.

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The current extinction crisis is witnessing extinction rates that are occurring at a faster rate than that of the natural extinction rate. It has largely been credited towards human impacts on climate change and the loss of biodiversity. This is along with natural forces that may create stress on the species or cause an animal population to become extinct.

One of the most significant reasons animals and plants become critically endangered is due to loss of habitat. Species rely on their habitat for the resources needed for their survival. If the habitat becomes destroyed, the population will see a decline in their numbers. Activities that cause loss of habitat include pollution, urbanization, and agriculture. Another reason for plants and animals become endangered is due to the introduction of invasive species. Invasive species invade and exploit a new habitat for its natural resources as a method to outcompete the native organisms, eventually taking over the habitat. This can lead to either the native species' extinction or causing them to become endangered. Plants and animals may also go extinct due to disease. The introduction of a disease into a new habitat can cause it to spread amongst the native species. Due to their lack of familiarity with the disease or little resistance, the native species can die off.

Conservation

A high percentage of species have become extinct and are considered to be Critically Endangered. Conservation methods are necessary in order to provide relief and recovery for species that are facing extinction. This is due to the declining rate of biodiversity as ecosystems collapse alongside its extinct and Critically Endangered species. It would take years before another species population would return to the habitat and increase its biodiversity rate. Conservation methods such as the following allow for human imposed threats of these Critically Endangered species to be lessened.

1. Educate Yourself and Others. This is considered to be one of the most essential conservation methods.
   1. By learning about wildlife, you are better able to understand the importance of these endangered species and the resources needed for their survival.
   2. This can either be learning the wildlife in your local neighborhood or across different nations.
   3. You can then educate friends, family, and neighbors on information regarding various local and global species.This includes activities such as:
      1. Visiting a national wildlife refuge or park
      2. Volunteering
      3. Observation and identification of the plants and animals native to your location.
2. Reuse, recycle and prefer sustainable products
   1. Recycling helps to reduce the amount of plastic waste that ends up in both the marine and terrestrial ecosystems.
   2. Sustainable products are those that allow for repetitive use and last longer, are more easily recycled, are more easily renewed (e.g., hemp based paper vs. wood pulp), and require fewer resources to create (e.g., water requirement to produce equivalent nutritional value of plant vs. animal based foods). These products reduce the amount of trash and recycling waste that end up in our environment.
3. Encourage Wildlife-Friendly Practices in Your Neighborhood
   1. This includes cleaning objects that is used by communities of animals in order to prevent disease transmission (e.g., bird baths and hummingbird feeders)
   2. Ensure that garbage cans are closed so that they do not attract animals.
   3. Do not leave food waste outside.
   4. Maintain the speed limit of your neighborhood to avoid accidentally killing any animals. This may limit the reduction of a native species population size within a certain area if it is a common occurrence within this species.
   5. Monitor Your Chemical Usage. Try to avoid using harsh chemicals, herbicides, and pesticides. In addition to being poisonous to the native animals, they can degrade the soil within their surrounding environment, and cause harmful algae blooms and a host of other unintended consequences.
4. Do Not Engage in Illegal Wildlife Captivity
   1. Poaching not only decreases the population's numbers, but also disrupts the balance of a certain habitat. Native species maintain the balance in their environment as they provide it with natural resources, remove waste, and control population of their prey species. By poaching off a particular species, you may be depriving the habitat of the resources needed to sustain its other native animal and plant species. Furthermore, poached animals have also been known to introduce and spread disease amongst human populations through wildlife trade.
      1. Example: SARS, Ebola, etc.
5. Develop Protective and Relief Projects for Threatened Species
   1. The Endangered Species Act was signed into law in 1973 by Richard Nixon in order to protect animals and plants who were facing possible extinction after an already visible decline of several species in the 1900s.
      1. This is intended to allow species to recover to the point where they no longer need protection.
   2. The U.S. Fish and Wildlife Service created the relief program "Critically Endangered Animals Conservation Fund" to send funding to continents such as Africa, Asia, South America, and Oceania to create projects that provide assistance with the recovery of Critically Endangered species from the brink of extinction.