Science Fair Projects Ideas - Endangered species

All Science Fair Projects

 		      

Science Fair Project Encyclopedia for Schools!
  Search    Browse    Forum  Coach    Links    Editor    Help    Tell-a-Friend    Encyclopedia    Dictionary     

Science Fair Project Encyclopedia

For information on any area of science that interests you,
enter a keyword (eg. scientific method, molecule, cloud, carbohydrate etc.).
Or else, you can start by choosing any of the categories below.

Science Fair Project Encyclopedia Contents Page

Endangered species

(Redirected from Endangered Species)

An endangered species is a species whose population is so small that it is in danger of becoming extinct. Many countries have laws offering special protection to these species (forbidding hunting, banning their habitats from development, etc.) to prevent extinction. Only a few of the many truly endangered species actually make it to the lists and obtain legal protection. Many more species become extinct, or potentially will become extinct, without gaining public notice.

Many of these laws are controversial. Typical areas of controversy include: criteria for placing a species on the endangered species list, and criteria for removing a species from the list once its population has recovered; whether restrictions on land development constitute a "taking" of land by the government, and the related question of whether private landowners should be compensated for the loss of use of their land; and obtaining reasonable exceptions to protection laws.

A listing as an endangered species can backfire, as it makes a species more valuable and more desirable for collectors and poachers[1].

The conservation status of a species is an indicator of the likelihood of that endangered species continuing to survive. Many factors are taken into account when assessing the conservation status of a species: not simply the number remaining, but the overall increase or decrease in the population over time, breeding success rates, known threats, and so on.

The best-known worldwide conservation status listing is the IUCN Red List, but many more specialized lists exist.

The following conservation status categories are used in articles in this encyclopedia. They are loosely based on the IUCN categories.

  • Extinct: the last remaining member of the species had died, or is presumed to have died beyond reasonable doubt. Examples: Thylacine, Dodo.
  • Extinct in the wild: captive individuals survive, but there is no free-living, natural population. Examples: Dromedary, Przewalski's Horse.
  • Critical or critically endangered: faces an extremely high risk of extinction in the immediate future.
  • Endangered: faces a very high risk of extinction in the near future.
  • Vulnerable: faces a high risk of extinction in the medium-term. Examples: Cheetah, Bactrian Camel
  • Secure or lower risk: no immediate threat to the survival of the species.


The following lists are examples of endangered species. Note that because of varying standards for regarding a species as endangered, and the very large number of endangered species, these lists should not be regarded as comprehensive.

Contents
1 Endangered mammals
2 Endangered birds
3 Endangered reptiles
4 Endangered amphibians
5 Endangered crustaceans
6 Endangered fish
7 Endangered arthropods
8 Endangered plants
9 See also
10 External links

Endangered mammals

Endangered birds

Endangered reptiles

Endangered amphibians

  • Arroyo Southwestern toad (Bufo californicus (=microscaphus))
  • Barton Springs salamander (Eurycea sosorum)
  • California tiger salamander (Ambystoma californiense)
  • Desert slender salamander (Batrachoseps aridus)
  • Houston toad (Bufo houstonensis)
  • Israel painted frog (Discoglossus nigriventer)
  • Italian spade-footed toad (Pelobates fuscus insubricus)
  • Mississippi gopher frog ( Rana capito sevosa)
  • Mountain yellow-legged frog (Rana muscosa)
  • Palmate newt (Triturus helvetica)
  • Santa Cruz long-toed salamander (Ambystoma macrodactylum croceum)
  • Shenandoah salamander (Plethodon shenandoah)
  • Sonoran tiger salamander (Ambystoma tigrinum stebbinsi)
  • Texas blind salamander (Eurycea rathbuni)
  • Wyoming toad ( Bufo baxteri (=hemiophrys))

Endangered crustaceans

Endangered fish

Endangered arthropods

Endangered plants

About 6% of the 300,000 identified species are endangered due to overcollection or destruction of habitat, among other causes. Pollinator decline is also a factor for some species.

  • African violet (Saintpaulia ionantha), due to forest clearance
  • Baishanzu fir (Abies beshanzuensis) of southeast China, three trees known on an isolated mountain summit
  • Baker's larkspur (Delphinium bakeri) of California, due to very limited habitat
  • Chilean wine palm (Juba chilensis), due to land clearance
  • King of the Paphs Orchid (Paphiopedilum rothschildianum) of Asia, due to overcollection
  • Lobster claw (Clianthus puniceus) of Australia, due to overgrazing
  • Louisiana Quillwort, (Isoetes louisianensis) of Louisiana, due to very limited habitat
  • Madonna lily (Lilium candidum) of Europe, due to overcollection
  • Pinus squamata of southwest China, about 20 trees known
  • Saguaro cactus (Carnegia gigantea) of North America, due to overcollection, slow maturing, and slow breeding
  • Saharan Cypress (Cupressus dupreziana) of North Africa, due to small population and desertification

See also

External links

Science Fair Project Encyclopedia Contents Page
10-26-2009 08:16:03
The contents of this article is licensed from www.wikipedia.org under the GNU Free Documentation License. Click here to see the transparent copy and copyright details
Science kits, science lessons, science toys, maths toys, hobby kits, science games and books - these are some of many products that can help give your kid an edge in their science fair projects, and develop a tremendous interest in the study of science. When shopping for a science kit or other supplies, make sure that you carefully review the features and quality of the products. Compare prices by going to several online stores. Read product reviews online or refer to magazines.

Start by looking for your science kit review or science toy review. Compare prices but remember, Price $ is not everything. Quality does matter.
Science Fair Coach
What do science fair judges look out for?
ScienceHound
Science Fair Projects for students of all ages
All Science Fair Projects.com Site
All Science Fair Projects Homepage
Search | Browse | Links | From-our-Editor | Books | Help | Contact | Privacy | Disclaimer | Copyright Notice