• In fact the Brown tree snake has caused many extinctions on Guam, including the local extinction of over half of Guam's native bird and lizard species as well as two out of three of Guam's native bat species. (iucn.org)
  • Bonn, Germany, May 22, 2008 (IUCN/Wiley-Blackwell) - The first study to determine the global status of 21 species of oceanic pelagic sharks and rays reveals that 11 of them are threatened with extinction, says IUCN on International Biodiversity Day. (iucn.org)
  • The 2008 IUCN Red List Birds Update makes grim reading with 1,226 species of birds threatened with extinction. (iucn.org)
  • Populations of many species affected by these natural or anthropogenic changes require focused management to ensure their conservation and sometimes recovery from the brink of extinction. (usgs.gov)
  • At least 3,890 tigers remain in the wild, but much more work is needed to protect this species that's still vulnerable to extinction. (worldwildlife.org)
  • Endangered species are those considered to be at risk of extinction, meaning that there are so few left of their kind that they could disappear from the planet altogether. (arkive.org)
  • With so many species at risk of extinction, the Arkive project is working to help raise the public profile of the world's endangered species, through the emotive power of wildlife films and photos. (arkive.org)
  • We will only succeed in rescuing species from the brink of extinction if people know about their plight, importance and value. (arkive.org)
  • Any species which fall into the categories Vulnerable, Endangered or Critically Endangered are considered to be at risk of extinction. (arkive.org)
  • Species are dying off at a rate that's over 100 times higher than 'normal' -- are we only concerned when the next 'great extinction' also includes humans? (techdirt.com)
  • This landmark conservation law has prevented the extinction of hundreds of imperiled species and helped many others recover. (fws.gov)
  • The first part of a binomial is the genus to which the species belongs. (wikipedia.org)
  • For example, Boa constrictor is one of four species of the Boa genus. (wikipedia.org)
  • The butterfly genus Heliconius contains some species extremely difficult to tell apart. (wikipedia.org)
  • What is missing [from HTML] is an element for marking up "proper names" (names of people, geographic locations, institutions, or even scientific names such as genus/species ). (microformats.org)
  • An alien species is a species introduced by humans - either intentionally or accidentally - outside of its natural past or present distribution, however not all alien species have negative impacts, and it is estimated that between 5% and 20% of all alien species become problematic. (iucn.org)
  • Bonobos and chimpanzees look very similar and both share 98.7% of their DNA with humans-making the two species our closest living relatives. (worldwildlife.org)
  • Invasive species - Humans have introduced non-native species (both intentionally and accidentally) to a wide variety of habitats, often with devastating consequences. (arkive.org)
  • Ancient humans presumably domesticated wolves or some other closely related species a long time ago -- perhaps multiple times on different continents. (techdirt.com)
  • Minor species" are all animals other than humans that are not one of the major species. (fda.gov)
  • This provision is limited to minor species that are not used as food for humans or other animals. (fda.gov)
  • From a biological perspective, humans are the species Homo sapiens . (stanford.edu)
  • Eleven countries in the arid and semi-arid regions of the world participated in the systematic collection of seeds of some 281 provenances of 43 species, mainly of the genera Acacia and Prosopis , and in the establishment of comparative trials. (fao.org)
  • People use the vernacular AND taxonomic names of species in everyday speech and writing - just read or watch any populist gardening magazine or television programme. (microformats.org)
  • The underlying concept of addressing IAS and their impacts is that the most effective and cost efficient way is to prevent the introduction in the first place through the management of 'pathways', for example through regulation of trade or movement of certain species. (iucn.org)
  • The impacts of this species are difficult to determine because it is often lumped together with other species in the family. (michigan.gov)
  • Strange and endangered species - A schoolboy reaches out to touch a humpheaded Maori wrasse as it swims in the world's largest Great Barrier Reef exhibit at the Sydney Aquarium in June 2003. (cnn.com)
  • Thank you for taking the time to provide feedback on the IUCN Red List of Threatened Species website, we are grateful for your input. (iucnredlist.org)
  • The IUCN Red List of Threatened Species 2004: e.T59435A11941314. (iucnredlist.org)
  • Anopheles lay their eggs in a variety of fresh or brackish bodies of water, with different species having different preferences. (cdc.gov)
  • Pioneer species will die creating plant litter , and break down as " leaf mold " after some time, making new soil for secondary succession (see below), and nutrients for small fish and aquatic plants in adjacent bodies of water. (wikipedia.org)
  • Obviously, the concept is closely tied to the definition of a species. (wikipedia.org)
  • Dogs and wolves can interbreed, suggesting that they are very closely related, if not the same, species. (techdirt.com)
  • Two or more taxa once considered conspecific (of the same species) may later be subdivided into infraspecific taxa (taxa within a species, such as bacterial strains or plant varieties ), but this is not a species complex. (wikipedia.org)
  • If as Linnaeus thought, species were fixed, there would be no problem, but evolutionary processes cause species to change continually, and to grade into one another. (wikipedia.org)
  • Even such pre Darwinian essentialists as Linnaeus could not locate the essences of species (Ereshefsky 2001). (stanford.edu)
  • They are identified by the rigorous study of differences between individual species, making use of minute morphological details, tests of reproductive isolation , or DNA -based methods such as molecular phylogenetics or DNA barcoding . (wikipedia.org)
  • French Marigold " and " human being " (arguments about Neanderthals not withstanding) are vernacular (or common) names, but still refer to individual species. (microformats.org)
  • In the 19th century, biologists grasped that species could evolve given sufficient time. (wikipedia.org)
  • Biologists disagree on the definition of the term 'species,' and philosophers disagree over the ontological status of species. (stanford.edu)
  • The second is whether biologists should be species pluralists or species monists. (stanford.edu)
  • Biologists offer over twenty definitions of the term 'species' (Hey 2001). (stanford.edu)
  • Monists argue that biologists should attempt to find the correct definition of 'species. (stanford.edu)
  • Or, as some philosophers and biologists argue, is the term 'species' a theoretically empty designation? (stanford.edu)
  • Biologists have had a hard time finding biological traits that occur in all and only the members of a species. (stanford.edu)
  • Species were seen from the time of Aristotle until the 18th century as fixed kinds that could be arranged in a hierarchy, the great chain of being. (wikipedia.org)
  • Since Aristotle, species have been paradigmatic examples of natural kinds with essences. (stanford.edu)
  • However, some species, such as the cheetah , have been persecuted after gaining a negative reputation for feeding upon livestock or crops or posing a threat to human safety. (arkive.org)
  • The Pioneer species are hardy species which are the first to colonize barren environments or previously biodiverse steady-state ecosystems that have been disrupted, such as by fire. (wikipedia.org)
  • The existence of extremely similar species may cause local and global species diversity to be underestimated. (wikipedia.org)
  • Defining what a species is -- is tricky, and the existence of the coywolf (a coyote, dog, wolf hybrid) makes the pedigree of dogs/wolves/coyotes a bit more complicated than one might have guessed. (techdirt.com)
  • Or supposing someone writes a long, chronologically-ordered web page about all the birds, insects, mammals and plants they saw on a wildlife safari, with lots of prose description about the paces where they saw them and the people they were with, but you want to extract a list of species, sorted into alphabetical order within taxonomic class (birds first, then insects then. (microformats.org)
  • Human DNA made it into the top five most abundant species in NYC subways, after insects and microbes. (techdirt.com)
  • The law is intended to make more medications legally available to veterinarians and animal owners for the treatment of minor animal species and uncommon diseases in the major animal species. (fda.gov)
  • however, pioneer species tend to reproduce asexually altogether, as the extreme or barren conditions present make it more favourable to reproduce asexually in order to increase reproductive success rather than invest energy into sexual reproduction . (wikipedia.org)
  • Governments should strengthen protected areas as a way to save their countries' species. (iucn.org)
  • Introduced predators can decimate local species which are not adapted to avoid predation, for example ground dwelling birds like the kakapo . (arkive.org)
  • Since some uncolonized land may have thin, poor quality soils with few nutrients, pioneer species are often hardy plants with adaptations such as long roots, root nodes containing nitrogen-fixing bacteria , and leaves that employ transpiration . (wikipedia.org)
  • This guide ( CPG 615.115 ) directs FDA field personnel to make the use of medicated feeds for minor species a low enforcement priority under the stated conditions. (fda.gov)
  • Wide-ranging generalists visit early succession stage habitats, but are not obligate species of those habitats because they use a mosaic of different habitats. (wikipedia.org)
  • Scientists and conservationists need a species definition which allows them to work, regardless of the theoretical difficulties. (wikipedia.org)
  • The third is whether the theoretical term 'species' refers to a real category in nature. (stanford.edu)
  • The alarming rate at which species are disappearing is something which should be a cause for concern for us all. (arkive.org)
  • Here the concern is the ontological status of species. (stanford.edu)
  • It is the policy of the MBL to actively control and prevent the intentional or accidental introduction of non-indigenous species into the local environment. (mbl.edu)
  • The terms are used to refer to a species living outside its native distributional range, having arrived there by human activity, either deliberate or accidental. (mbl.edu)
  • A Google Search for "species checklist" will reveal many other such examples. (microformats.org)
  • By saving biologically diverse places, we allow tigers to roam and preserve the many other endangered species that live there. (worldwildlife.org)
  • Many species have suffered adverse consequences from plague, perhaps none more than the endangered black-footed ferret. (usgs.gov)
  • Imagine viewing a web page with a reference to a species - and being able to use an add-on to you browser to be taken directly to information about that species, on, say, Wikipedia, or Wikispecies, or Google Images, or another site, such as in an academic database, of your choosing. (microformats.org)
  • The endangered species of tree kangaroo is native to the lowland and mountainous rainforests in Papua New Guinea and Indonesia. (cnn.com)
  • Introduced species may prove highly adaptable and outcompete native species for resources. (arkive.org)
  • The Endangered Species Act (ESA) provides a critical safety net for America's native fish, wildlife and plants. (fws.gov)
  • an encyclopedia that lives on the Internet, with an ever-evolving page for every species [and which] does not duplicate existing efforts, but instead incorporates them through linking [with a] search technology that can aggregate existing biological information and make it easily accessible. (microformats.org)
  • We identify and assess the status of imperiled species that may need protection under the ESA. (fws.gov)
  • For many of these species, limited information exists about their life history, status, and distribution, or how changes in their abundance or distribution alter ecosystem processes, productivity, or structure. (usgs.gov)
  • The first is the ontological status of species. (stanford.edu)
  • According to the Arizona Game and Fish Department, permits are required to remove live individuals of species that are salvage assessed [ 6 ]. (fed.us)
  • It is one of the most threatened of the five rhino species, with as few as 35 individuals surviving. (cnn.com)
  • Others maintain that species are particulars or individuals. (stanford.edu)
  • Are species natural kinds, individuals, or sets? (stanford.edu)
  • A keystone species may facilitate the introduction of pioneer species by creating new niches . (wikipedia.org)
  • Due to the increase in the movement of people and goods around the world, the opportunity for the introduction of species outside of their natural range is on the increase. (iucn.org)
  • Let us start with a brief introduction to kind essentialism and then turn to the biological reasons why species fail to have essences. (stanford.edu)
  • At least six treefrog species make up the Hypsiboas calcaratus - fasciatus species complex . (wikipedia.org)
  • For the latest ideas, and to make comments, please see species-brainstorming . (microformats.org)
  • Ultimately we want to work with you and our partners to accelerate recovery of threatened and endangered species, and make it easier for people to coexist with listed species. (fws.gov)
  • A sponsor of a veterinary drug for a minor use or minor species can apply for "conditional approval," which allows the sponsor to make the drug available before collecting all necessary effectiveness data, but after proving the drug is safe in accordance with the full FDA approval standard and showing that there is a reasonable expectation of effectiveness. (fda.gov)
  • Charles Darwin's 1859 book The Origin of Species explained how species could arise by natural selection. (wikipedia.org)
  • Some philosophers believe that species are natural kinds. (stanford.edu)
  • Despite this change in biological thinking, many philosophers still believe that species are natural kinds with essences. (stanford.edu)