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Topic: Animal extinction



  
 Extinction!
Extinction is one of the most common observations in palaeontology, but it remains very difficult to understand precisely why a particular ancient plant or animal species went extinct.
The mass extinction marked as 'Maastrichtian' was the death of the dinosaurs.
However, this event is by no means the largest mass extinction to have occurred and, according to available data on the timing and magnitudes of impacts, several extinction events of equal and greater magnitude are not associated with large asteroid impacts.
http://www.firstscience.com/site/articles/macleod.asp   (2160 words)

  
 Study: Mass extinctions via warming - Environment - MSNBC.com
Depending on the temperature increase, the researchers found that 15 to 37 percent of the studied species will either go extinct or be on the road to extinction by 2050.
Earth is home to an estimated 4 million to 6 million plant and animal species, a tiny fraction of which — about 12,000 — conservationists estimate are threatened with extinction, although thousands of others are likely on the brink as well.
The sweeping new analysis, enlisting scientists from 14 laboratories around the globe, found that more than one-third of 1,103 native species they studied in six regions around the world could vanish or plunge to near extinction by 2050 as climate change turns plains into deserts or alters forests.
http://www.msnbc.msn.com/id/3897120   (966 words)

  
 Articles / Impact / Extinction - Institute for Creation Research
The money and effort put into protecting, restoring, and sustaining a few minor species of plants and animals becomes a questionable national effort.
Nearly one-half of the then known animal species became extinct at the close of the Permian Period!
The dinosaur extinction is the best known of all disappearances, and it occurred at the close of the Cretaceous Period in a relatively short period of time.
http://www.icr.org/index.php?module=articles&action=view&ID=167   (1839 words)

  
 primate extinction
Biodiversity hotspots, where 96 percent of the most threatened primates live, are identified by Conservation International as 25 places that cover only 1.4 percent of the Earth's land surface, but claim more than 60 percent of all plant and animal diversity.
The list includes primates recently discovered or rediscovered whose populations are most likely perilously small, but for which no estimates exist, as well as species whose populations were stable only a few years ago but are now under serious threat of extinction.
Of the 25 primates listed, 24 are found exclusively in seven of the world's 25 "biodiversity hotspots." These areas have the world's richest diversity of land animals and at the same time are experiencing some of the most extreme habitat destruction.
http://www.rainforestinfo.org.au/wrr43/primate_extinction.htm   (1839 words)

  
 Gopher Tortoise
Gopher tortoises will also scavenge and are opportunistic feeders, occasionally feeding on dead animals or excrement.
For the gopher tortoise to thrive, the animal generally needs three things: well-drained sandy soil (for digging burrows), plenty of low plant growth (for food) and open, sunny areas (for nesting and basking).
The gopher tortoise is a keystone species, meaning its extinction would result in measurable changes to the ecosystem in which it occurs.
http://www.uga.edu/srel/gopher.htm   (913 words)

  
 Domestication - Free Encyclopedia
Domesticated animals and plants are those species whose breeding and living conditions are under human control for the purposes of using them for food, as an aid to work, or as a pet.
Domesticated species, when bred for tractability, companionship or ornamentation rather than for survival, can often fall prey to disease: several sub-species of apples or cattle, for example, face extinction; and many dogs with very respectable pedigrees appear prone to genetic problems.
The first domestic animal was probably the dog, possibly as early as 11000 BCE.
http://strategygames.wacklepedia.com/d/do/domestication.html   (323 words)

  
 Elusive fishers grow more familiar - The Boston Globe
Fishers were nearly driven to extinction in New England in the 1800s due to trapping and the replacement of forests with farmland, wildlife biologists said.
The wild animals will always be easy to find and trap, he said, because bird seed near homes attracts them close to residential areas.
Some see the fisher in a more positive light, saying it is an animal that is merely doing what it has to do to survive.
http://www.boston.com/news/local/articles/2005/09/04/elusive_fishers_grow_more_familiar?mode=PF   (776 words)

  
 Captive Exotics and Wild Animals as Pets
The mongoose soon turned to feasting on other crops and on other animals, thereby pushing a number of native species to near-extinction.
Furthermore, wild and exotic animals carry a number of diseases that are transmissible to humans, including rabies, tuberculosis, hepatitis, tularemia, leptospirosis, salmonella, and ringworm, and other parasites.
These wild animals also bring diseases to which domestic or native wild animals have no immunity, such as deadly Newcastle disease, rabies, and brucellosis.
http://www.hsus.org/ace/12055   (776 words)

  
 Spider Monkey
Our subspecies of black-handed spider monkeys is considered to be of "Low Risk/Least Concern" for extinction according to the new, 2003 Red List of Threatened Species published worldwide by IUCN http://www.redlist.org/.
Spider monkeys are fruigivorous preferring a diet of 90% fruit and seeds, feeding on the mature soft parts of a wide variety of fruits in which the seeds are swallowed along with the fruit.
Other spider monkey subspecies' have gotten onto the critical list due to losing their habitat, mature rain forests, to farming and due to being used as a food source.
http://www.honoluluzoo.org/spider_monkey.htm   (1278 words)

  
 Europe - encyclopedia article about Europe.
As for the animals, in many parts of Europe most large animals and top predator species have been hunted to extinction.
Having lived side-by-side with agricultural and industrial civilisations for millennia, Europe's animals and plants have been profoundly affected by the presence and activities of man. With the exception of Scandinavia and northern Russia, few areas of untouched wilderness are today to be found in Europe, except for different natural parks.
Few corners of mainland Europe have not been grazed by livestock at some point over the millennia, and the cutting down of the pre-agricultural forest habitat caused incalculable disruption to the original plant and animal ecosystems.
http://encyclopedia.thefreedictionary.com/Europe   (4810 words)

  
 animal migration article learnenglish
Another example of an animal that once migrated in vast numbers, but was almost hunted to extinction, is the American bison.
Further experiments have shown that animals may use the sun, the stars (nocturnal birds), polarized light (on cloudy days), geomagnetic fields (pigeons, turtles) and landmarks (whales, insects) to help them find their way.
An irruption is an irregular movement of an animal population out of an area, with no return, caused by a sudden, explosive increase in that animal's numbers.
http://www.learnenglish.org.uk/magazine/animal_migration.html   (4810 words)

  
 Myths and misconceptions about pest animal impact and management
However, in other areas, management of feral cats may be necessary to ensure the survival of smaller, less stable native animal populations which are more susceptible to local extinction through a range of pressures including predation and chance events such as drought and fire.
Pest animal research which quantifies impact often finds that it is overestimated and that there are sometimes more significant agricultural or environmental impacts which can be more readily resolved.
Principles and Strategies of Pest Animal Management | Myths and Misconceptions about Pest Animal Imact and Management | Risk assessment model for the Import and Keeping of Exotic Vertebrates in Australia
http://www.affa.gov.au/content/output.cfm?ObjectID=D2C48F86-BA1A-11A1-A2200060B0A06276   (404 words)

  
 Strange Science: Timeline
Cuvier also publishes a paper explaining that the fossil animals he has studied bear no resemblance to anything still living, an unambiguous endorsement of the theory of extinction.
After watching them move and eat, he has concluded that the simple creatures (later to be classified as cnidarians) are animals, not plants.
It has evidence for functional gills as well as legs, strongly suggesting that animals evolved legs while still living in the water.
http://www.strangescience.net/timeline.htm   (11257 words)

  
 Links to Primate Trade Data
The international trade in primates is accelerating the decline of our closest living relatives in the animal world to the point of near extinction.
Convention on International Trade in Endangered Species [CITES] Appendix I (threatened with extinction) listed primate species.
Visual Overview of USDA-APHIS Licensees: Animal Research Facilities; Animal Breeders; Animal Dealers; Animal Exhibitors [plotted by location on a map of the continental United States]
http://www.aesop-project.org/TradeData.htm   (11257 words)

  
 PRIMATE Case
Name, Type, and Diversity of Species Name: Primate Type: Animal/Mammal/Primate Diversity: 515 mammals per 10,000 km/sq (Indonesia) There are probably at least a dozen different species of monkeys, apes and chimps affected by the international primate trade including, specifically, the Gorilla gorilla graueri and the Pan troglodytes.
About 21,000 primates are imported annually into the U.S. despite the substantial breeding capacity of federally-funded research centers.
Related Cases Keyword Clusters (1): Trade Product = PRIMate (2): Exporter = PHILippines (3): Environmental Problem = Species Loss Land [SPLL] 4.
http://www.american.edu/ted/PRIMATE.HTM   (11257 words)

  
 WPRC Library & Information Service: Nonfiction Juvenile Collection
SUMMARY: Describes how and why various species of animals and the tropical rain forests are threatened with extinction and discusses the importance of ensuring their survival.
TITLE Chimpanzee roams the forest / by Gladys Conklin.
TITLE How to babysit an orangutan / story and photographs by Tara Darling and Kathy Darling.
http://library.primate.wisc.edu/collections/juvenile.html   (11257 words)

  
 Extinction of a West African Red Colobus Monkey
For more than 40 years, conservationists have expressed concern that the effects on wild animal and plant populations from the growth of the global human population and from economic development, especially in the tropics, will produce marked increases in the rate of extinction of species and subspecies by the end of the twentieth century.
Extinction of a West African Red Colobus Monkey
We suggest that the lack of recent primate extinctions is fostering complacency, and that such complacency may allow taxa to become extinct that could have been saved by more vigorous and timely action.
http://www.atidekate.com/park/Redcolobusextinction.html   (11257 words)

  
 GROWING ILLEGAL COMMERCE IN AFRICAN BUSHMEAT
If the taste for bushmeat continues to spread across equatorial Africa at its current pace, all African apes and most other non-human primates may soon be threatened by extinction.
For the apes in particular it has manifest as a fight against extinction of humankind's closest living genetic kin.
* Anthony Rose is an applied social psychologist and organization developer who has studied macaques, apes, and humans, taught animal behavior and human psychosocial evolution, and consulted in the private sector and government on forest management, military diplomacy, religious community development, educational innovation, corporate strategic planning, and health care quality assurance.
http://bushmeat.net/bmcommerce199.htm   (5053 words)

  
 Animal Crackers
For the AR people, nothing short of abolishing domestic horses will suffice — and if that means the extinction of the horse, or the destruction of the habitat into which horses are released, so be it.
By their very nature, circuses cannot provide the space and necessary requirements to meet the needs of animals.
Federal prosecutors believe Young and Justin Samuel broke onto farms in Wisconsin, South Dakota and Iowa in 1997 and freed 7,000 mink on behalf of the Animal Liberation Front.
http://brianoconnor.typepad.com   (5053 words)

  
 Bushmeat
About 1% of the bushmeat trade is in ape meat, however, their small numbers and the attractiveness of hunting them (a gorilla is a quite large animal, and good "payoff" for each cartridge) means the impact is quite extreme:
In the countries where the hunting occurs, orphaned apes (deemed too fragile to survive on their own, but also deemed too small to be worth shooting and cutting up, to the hunters) are raised and returned to the wild, as part of these efforts.
Apes also carry human diseases - ebola for instance is epidemic in chimps and gorillas, and spreads quite easily to those eating them.
http://usapedia.com/b/bushmeat.html   (683 words)

  
 Holocene
Animal and plant life did not evolve much during the Holocene, but there were major shifts in the distributions of plants and animals.
A number of large animals including mammoths and mastodons, saber tooth cats, and giant sloth disappeared in the late Pleistocene and early.,Holocene -- especially in North America where common animals that survived elsewhere including horses and camels became extinct.
Although geographic shifts in the Holocene were minor, climatic shifts were very large.
http://www.wordlookup.net/ho/holocene.html   (466 words)

  
 Welcome to the L.A. Zoo
These animals hunt at night (nocturnal) within a large territory with an estimated size of 250 acres.
The fossa is endangered and faces a high risk of extinction in the wild in the near future due to loss of habitat and hunting.
With a body length of 28 to 32 inches and an almost equally long tail and weight of 15 to 26 pounds, the adult male fossa is the largest carnivore in Madagascar.
http://www.lazoo.org/animalfact_arch.asp?id=22   (344 words)

  
 UWSP Museum of Natural History Exhibits
Nocturnal animals help complete the food chain by controlling the animal population and lowering the extinction occurrence of others.
We will have the opportunity to observe many animals, their habitats, and large egg collection!
What type of habitat does this animal live in?__________________________________
http://www.uwsp.edu/museum/lesson18.htm   (1841 words)

  
 Animal Info - Persian Fallow Deer
The Persian fallow deer was hunted to extinction over most of its range, with the introduction of modern firearms having accelerated this process.
In the middle of the 20th century, in addition to hunting the remaining population was threatened by habitat loss and disturbance due to firewood gatherers and overgrazing by domestic animals.
Persian fallow deer were re-introduced in Israel in September of 1996 in the Kziv Nature Reserve in northern
http://www.animalinfo.org/species/artiperi/damameso.htm   (677 words)

  
 Evolution discussion
There is very little evidence of mass extinction following this impact, implying that plant and animal taxa were able to survive with minimal loss of diversity.
An extinction event occurred then also as major climatic change accompanied the expansion of polar ice caps.
The Permian extinction is perhaps the worst one that occurred in the Phanerozoic (last 510 m.y.), because nearly 99% of all species on this planet disappeared in a geologic instant.
http://www.sunstar-solutions.com/AOP/SOW/evolution_discussion.htm   (4798 words)

  
 Red Deer
Due to the extinction of their natural predators, the Wolf and the Golden Eagle (which preyed on fawns), Red deer numbers have to be controlled by man. In the past, his influence had been steadily depleting stocks.
These are supplemented by woodland understorey plants in winter when the deer come down to the shelter of the trees.
It is thought that the only truly native Red deer remaining are found in Kerry; those found elsewhere have been affected by introduction and hybridisation with Sika deer.
http://www.irelandseye.com/aarticles/travel/nature/animals/red_deer.shtm   (388 words)

  
 Buteo Books: General Ornithology Titles - Bird Books, Ornithology Texts, Birding Gear
Last Animals at the Zoo: How Mass Extinction Can Be Stopped.
Animal Cognition in Nature: The Convergence of Psychology and Biology in Laboratory and Field.
Surveys, tracking and handling, breeding biology, foraging behavior and migration.
http://www.buteobooks.com/general.html   (2119 words)

  
 The Final Century
At the current rate, we will lose half the plant and animal species on Earth by the end of the century."
Animals and plants of all kinds are becoming extinct TODAY, at a far higher rate than has ever happened in Earth's history.
This event is the sixth major extinction in Earth's history; the other five all took place in early prehistory.
http://webpages.charter.net/gwilcox   (169 words)

  
 Amazon.co.uk: Books: Primate Conservation Biology
Subjects > Science & Nature > Biological Sciences > Animal Sciences > Extinction & Endangered Species
Subjects > Science & Nature > Popular Science > Extinction
Subjects > Scientific, Technical & Medical > Biology > Animal Sciences > Primates
http://www.amazon.co.uk/exec/obidos/ASIN/0226116360   (169 words)

  
 Dinosaur Extinction - Enchanted Learning Software
In this Cretaceous-Tertiary or K-T mass extinction (K is for Kreide, meaning chalk in German, which describes the chalky sediment layer from that time; T is for Tertiary, the next geologic period), all land animals over about 55 pounds went extinct, as did many smaller organisms.
Most of the dinosaurs went extinct long before the catastrophic mass extinction at the end of the Cretaceous period, 65 million years ago.
Background extinctions and many minor extinctions accounted for the disappearance of most of the dinosaur species.
http://www.enchantedlearning.com/subjects/dinosaurs/extinction/Asteroid.html   (1063 words)

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