Quantum redactiones paginae "Species in discrimen adducta" differant

'''Species in discrimen adducta''' in [[biologia]] est [[species (biologia)|species]] [[organismus|organismorum]] quae inextremumin extremum [[extinctio (biologia)|extinctio]]nis [[periculum]] vocatur. CausaeOrigines huius periculi usitate sunt speciei numeri raritas, [[clima]]tis vel rapida [[circumiecta naturalia|circumiectús naturalis]] condicionis mutatio, et [[venator|venatuum]] parametra.{{dubsig}} Periclitata saepe dicitur sola species [[taxinomia|taxinomica]], sed interdum significans{{dubsig}} specierum [[clades (biologia)|cladescladus]] dici potest. [[Consociatio internationalis ad naturam conservandam]] (IUCN) fractionem specierum periclitatam esse supra 40 centensimas omnium specierum existimat.

[[Index Ruber IUCN]] est [[tabula]] organismorum in gradus periculi [[exstinctio]]nis descriptarum: periclitatae, vulnerabiles, vel non periclitatae. Hi gradus [[status conservationis|statum conservationis]] specierum designant. Hodie per [[tellus|orbe terrarum]], 3079 [[animalia|animalium]] et 2655 [[planta]]rum periclitatae describuntur, contra 1102 et 1197 anno [[1998]]<!--respectively-->.<ref name='iucn 2012.2'> {{cite web | url = http://www.iucnredlist.org/documents/summarystatistics/2012_2_RL_Stats_Table_2.pdf | title = IUCN Red List version 2012.2: Table 2: Changes in numbers of species in the threatened categories (CR, EN, VU) from 1996 to 2012 (IUCN Red List version 2012.2) for the major taxonomic groups on the Red List | accessdate = [[31 Decembris]] [[2012]] | author = [[Consociatio internationalis ad naturam conservandam|IUCN]] | date = [[2012]] | format = PDF}}.</ref>

Plures [[civitas|civitates]] [[lex|leges]] habentsanxerunt quae certos organismos a periculo tueri conantur.

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* Ishwaran, N., et W. Erdelen. [[2005]]. [http://jstor.org/stable/3868449 Biodiversity Futures], ''Frontiers in Ecology and the Environment'' 3(4, Maiono. (Maius): 179. Confirmatus [[16 Ianuarii]] [[2013]].

* Kotiaho, J. S., V. Kaitala, A. Komonen, J. P. Päivinen, et P. R. Ehrlich. [[2005]]). [http://www.jstor.org/stable/3374545 "Predicting the Risk of Extinction from Shared Ecological Characteristics"]. ''Proceedings of the National Academy of Sciences of the United States of America'' 102(6, 8 Februarii): 1963–1967. Confirmatus [[16 Ianuarii]] [[2013]].

* Minteer, B. A., et J. P. Collins. [[2005]]. [http://www.jstor.org/stable/3868567 "Why we need an "Ecological Ethics."]. ''Frontiers in Ecology and the Environment'' 3 (6):332–337 332–37. JSTOR 3868567.

* Raloff, J. [[2006]]. [http://www.jstor.org/stable/4017054 "Preserving Paradise."], ''Science News'' 170(6, no. 6 (5 Augusti): 92. Confirmatus [[16 Ianuarii]] [[2013]].

* Wilcove, D. S., et L. L. Master. [[2008]]. [http://www.jstor.org/stable/3868674 "How Many Endangered Species areAre there in the United States?"] ''Frontiers in Ecology and the Environment'' 3(8, no. 8 (October), 414-420414–20. Confirmatus [[16 Ianuarii]] [[2013]].