Natură (Romanian Wikipedia)
Analysis of information sources in references of the Wikipedia article "Natură" in Romanian language version.
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accessscience.com
- „Matter (physics)”. McGraw-Hill's Access Science: Encyclopedia of Science and Technology Online. Arhivat din original la . Accesat în .
aip.org
- Weart, Spencer (iunie 2006). „The Discovery of Global Warming”. American Institute of Physics. Arhivat din original la . Accesat în .
americanscientist.org
- Murphy, J.B.; R.D. Nance (). „How do supercontinents assemble?”. American Scientist. 92 (4): 324. doi:10.1511/2004.4.324. Arhivat din original la . Accesat în .
answers.com
- "Ocean Arhivat în , la Wayback Machine.". The Columbia Encyclopedia. 2002. New York: Columbia University Press
archive.org
- Margulis, Lynn; Dorian Sagan (). What is Life?. New York: Simon & Schuster. ISBN 978-0-684-81326-4.
- Margulis, Lynn; Dorian Sagan (). What is Life?. New York: Simon & Schuster. p. 145. ISBN 978-0-684-81326-4.
- Clarke, Robin; Robert Lamb; Dilys Roe Ward, ed. (). „Decline and loss of species”. Global environment outlook 3: past, present and future perspectives
. London; Sterling, VA: Nairobi, Kenya: UNEP. ISBN 978-92-807-2087-7. - Peter Hamilton Raven; George Brooks Johnson (). Biology. McGraw-Hill Education. p. 68. ISBN 978-0-07-112261-0. Accesat în .
- Poincaré, Jules Henri (). The foundations of science; Science and hypothesis, The value of science, Science and method. The Science Press. pp. 366-7. OCLC 2569829.
arxiv.org
- Ade, P. A. R.; Aghanim, N.; Armitage-Caplan, C.; et al. (Planck Collaboration) (). „Planck 2013 results. I. Overview of products and scientific results – Table 9”. Astronomy and Astrophysics. 571: A1. arXiv:1303.5062
. Bibcode:2014A&A...571A...1P. doi:10.1051/0004-6361/201321529. - Varshalovich, D.A.; Potekhin, A.Y.; Ivanchik, A.V. (). „Testing cosmological variability of fundamental constants”. AIP Conference Proceedings. 506: 503. arXiv:physics/0004062 . Bibcode:2000AIPC..506..503V. doi:10.1063/1.1302777.
blueplanetbiomes.org
- „World Climates”. Blue Planet Biomes. Arhivat din original la . Accesat în .
books.google.com
- Miller; Spoolman, Scott (). Environmental Science: Problems, Connections and Solutions. Cengage Learning. ISBN 978-0-495-38337-6.
- Khan, Firdos Alam (). Biotechnology Fundamentals (în engleză). CRC Press. ISBN 978-1-4398-2009-4.
- R. Penrose (). „The mass of the classical vacuum”. În S. Saunders; H.R. Brown. The Philosophy of Vacuum. Oxford University Press. pp. 21–26. ISBN 978-0-19-824449-3.
britannica.com
-
Britannica Online. „Lake (physical feature)”. Arhivat din original la . Accesat în .
[a Lake is] any relatively large body of slowly moving or standing water that occupies an inland basin of appreciable size. Definitions that precisely distinguish lakes, ponds, swamps, and even rivers and other bodies of nonoceanic water are not well established. It may be said, however, that rivers and streams are relatively fast moving; marshes and swamps contain relatively large quantities of grasses, trees, or shrubs; and ponds are relatively small in comparison to lakes. Geologically defined, lakes are temporary bodies of water.
calacademy.org
- „Definition of Life”. California Academy of Sciences. . Arhivat din original la . Accesat în .
caltech.edu
gps.caltech.edu
- Kirschvink, J.L. (). „Late Proterozoic Low-Latitude Global Glaciation: The Snowball Earth” (PDF). În J.W. Schopf; C. Klein. The Proterozoic Biosphere. Cambridge: Cambridge University Press. pp. 51–52. ISBN 978-0-521-36615-1.
census.gov
- The figure "about one-half of one percent" takes into account the following (See, e.g., Leckie, Stephen (). „How Meat-centred Eating Patterns Affect Food Security and the Environment”. For hunger-proof cities: sustainable urban food systems. Ottawa: International Development Research Centre. ISBN 978-0-88936-882-8. Arhivat din original la ., which takes global average weight as 60 kg.), the total human biomass is the average weight multiplied by the current human population of approximately 6.5 billion (see, e.g., „World Population Information”. U.S. Census Bureau. Accesat în .): Assuming 60–70 kg to be the average human mass (approximately 130–150 lb on the average), an approximation of total global human mass of between 390 billion (390×109) and 455 billion kg (between 845 billion and 975 billion lb, or about 423 million–488 million short tons). The total biomass of all kinds on earth is estimated to be in excess of 6.8 x 1013 kg (75 billion short tons). By these calculations, the portion of total biomass accounted for by humans would be very roughly 0.6%.
cia.gov
- „World”. CIA – World Fact Book. Arhivat din original la . Accesat în .
- „GDP – Composition by Sector”. The World Factbook. [Central Intelligence Agency. Arhivat din original la . Accesat în .
dictionary.com
- „Lake Definition”. Dictionary.com. Arhivat din original la . Accesat în .
doi.org
- Ducarme, Frédéric; Couvet, Denis (). „What does 'nature' mean?”. Palgrave Communications. Springer Nature. 6 (14). doi:10.1057/s41599-020-0390-y .
- An account of the pre-Socratic use of the concept of φύσις may be found in Naddaf, Gerard (2006) The Greek Concept of Nature, SUNY Press, and in Ducarme, Frédéric; Couvet, Denis (). „What does 'nature' mean?”. Palgrave Communications. Springer Nature. 6 (14). doi:10.1057/s41599-020-0390-y .. The word φύσις, while first used in connection with a plant in Homer, occurs early in Greek philosophy, and in several senses. Generally, these senses match rather well the current senses in which the English word nature is used, as confirmed by Guthrie, W.K.C. Presocratic Tradition from Parmenides to Democritus (volume 2 of his History of Greek Philosophy), Cambridge UP, 1965.
- Morbidelli, A.; et al. (). „Source Regions and Time Scales for the Delivery of Water to Earth”. Meteoritics & Planetary Science. 35 (6): 1309–20. Bibcode:2000M&PS...35.1309M. doi:10.1111/j.1945-5100.2000.tb01518.x.
- Murphy, J.B.; R.D. Nance (). „How do supercontinents assemble?”. American Scientist. 92 (4): 324. doi:10.1511/2004.4.324. Arhivat din original la . Accesat în .
- Raup, David M.; J. John Sepkoski Jr. (martie 1982). „Mass extinctions in the marine fossil record”. Science. 215 (4539): 1501–03. Bibcode:1982Sci...215.1501R. doi:10.1126/science.215.4539.1501. PMID 17788674.
- Diamond J; Ashmole, N. P.; Purves, P. E. (). „The present, past and future of human-caused extinctions”. Philos Trans R Soc Lond B Biol Sci. 325 (1228): 469–76; discussion 476–77. Bibcode:1989RSPTB.325..469D. doi:10.1098/rstb.1989.0100 . PMID 2574887.
- Novacek M; Cleland E (). „The current biodiversity extinction event: scenarios for mitigation and recovery”. Proc Natl Acad Sci USA. 98 (10): 5466–70. Bibcode:2001PNAS...98.5466N. doi:10.1073/pnas.091093698. PMC 33235 . PMID 11344295.
- Wick, Lucia; Möhl, Adrian (). „The mid-Holocene extinction of silver fir (Abies alba) in the Southern Alps: a consequence of forest fires? Palaeobotanical records and forest simulations” (PDF). Vegetation History and Archaeobotany. 15 (4): 435–44. doi:10.1007/s00334-006-0051-0. Arhivat din original (PDF) la . Accesat în .
- Stern, Harvey; Davidson, Noel (). „Trends in the skill of weather prediction at lead times of 1–14 days”. Quarterly Journal of the Royal Meteorological Society. 141 (692): 2726–36. Bibcode:2015QJRMS.141.2726S. doi:10.1002/qj.2559.
- Spilhaus, Athelstan F (). „Maps of the whole world ocean”. Geographical Review. 32 (3): 431–35. doi:10.2307/210385.
- Hatcher, Bruce Gordon (). „Coral reef primary productivity. A hierarchy of pattern and process”. Trends in Ecology and Evolution. 5 (5): 149–155. doi:10.1016/0169-5347(90)90221-X. PMID 21232343.
- Bailey, Robert G. (aprilie 2004). „Identifying Ecoregion Boundaries” (PDF). Environmental Management. 34 (Supplement 1): S14–26. doi:10.1007/s00267-003-0163-6. PMID 15883869. Arhivat din original (PDF) la .
- Bunker, Daniel E.; et al. (noiembrie 2005). „Species Loss and Aboveground Carbon Storage in a Tropical Forest”. Science. 310 (5750): 1029–31. Bibcode:2005Sci...310.1029B. doi:10.1126/science.1117682. PMID 16239439.
- Wilcox, Bruce A. (). „Amphibian Decline: More Support for Biocomplexity as a Research Paradigm”. EcoHealth. 3 (1): 1–2. doi:10.1007/s10393-005-0013-5.
- Schopf, JW (). „Fossil evidence of Archaean life”. Philos Trans R Soc Lond B Biol Sci. 361 (1470): 869–85. doi:10.1098/rstb.2006.1834. PMC 1578735 . PMID 16754604.
- Line, M. (). „The enigma of the origin of life and its timing”. Microbiology. 148 (Pt 1): 21–27. doi:10.1099/00221287-148-1-21 . PMID 11782495.
- Berkner, L. V.; L. C. Marshall (mai 1965). „On the Origin and Rise of Oxygen Concentration in the Earth's Atmosphere”. Journal of the Atmospheric Sciences. 22 (3): 225–61. Bibcode:1965JAtS...22..225B. doi:10.1175/1520-0469(1965)022<0225:OTOARO>2.0.CO;2 .
- Schopf J (). „Disparate rates, differing fates: tempo and mode of evolution changed from the Precambrian to the Phanerozoic”. Proc Natl Acad Sci USA. 91 (15): 6735–42. Bibcode:1994PNAS...91.6735S. doi:10.1073/pnas.91.15.6735. PMC 44277 . PMID 8041691.
- Szewzyk U; Szewzyk R; Stenström T (). „Thermophilic, anaerobic bacteria isolated from a deep borehole in granite in Sweden”. Proc Natl Acad Sci USA. 91 (5): 1810–13. Bibcode:1994PNAS...91.1810S. doi:10.1073/pnas.91.5.1810. PMC 43253 . PMID 11607462.
- Horneck G (). „Survival of microorganisms in space: a review”. Adv Space Res. 1 (14): 39–48. doi:10.1016/0273-1177(81)90241-6. PMID 11541716.
- Ade, P. A. R.; Aghanim, N.; Armitage-Caplan, C.; et al. (Planck Collaboration) (). „Planck 2013 results. I. Overview of products and scientific results – Table 9”. Astronomy and Astrophysics. 571: A1. arXiv:1303.5062 . Bibcode:2014A&A...571A...1P. doi:10.1051/0004-6361/201321529.
- Varshalovich, D.A.; Potekhin, A.Y.; Ivanchik, A.V. (). „Testing cosmological variability of fundamental constants”. AIP Conference Proceedings. 506: 503. arXiv:physics/0004062 . Bibcode:2000AIPC..506..503V. doi:10.1063/1.1302777.
- Bibring, J; et al. (). „Global mineralogical and aqueous mars history derived from OMEGA/Mars Express data”. Science. 312 (5772): 400–04. Bibcode:2006Sci...312..400B. doi:10.1126/science.1122659 . PMID 16627738.
eh-resources.org
- Oosthoek, Jan (). „Environmental History: Between Science & Philosophy”. Environmental History Resources. Arhivat din original la . Accesat în .
emersoncentral.com
- Para un ejemplo de varias opiniones, véase: „On the Beauty of Nature”. The Wilderness Society. Arhivat din original la . Accesat în . y el análisis de la materia de Ralph Waldo Emerson: Emerson, Ralph Waldo (). „Beauty”. Nature; Addresses and Lectures.
epa.gov
- „Past Climate Change”. U.S. Environmental Protection Agency. Arhivat din original la . Accesat în .
etymonline.com
- Harper, Douglas. „nature”. Online Etymology Dictionary. Accesat în .
- The etymology of the word "physical" shows its use as a synonym for "natural" in about the mid-15th century: Harper, Douglas. „physical”. Online Etymology Dictionary. Accesat în .
fs.fed.us
- Bailey, Robert G. (aprilie 2004). „Identifying Ecoregion Boundaries” (PDF). Environmental Management. 34 (Supplement 1): S14–26. doi:10.1007/s00267-003-0163-6. PMID 15883869. Arhivat din original (PDF) la .
harvard.edu
adsabs.harvard.edu
- Morbidelli, A.; et al. (). „Source Regions and Time Scales for the Delivery of Water to Earth”. Meteoritics & Planetary Science. 35 (6): 1309–20. Bibcode:2000M&PS...35.1309M. doi:10.1111/j.1945-5100.2000.tb01518.x.
- Raup, David M.; J. John Sepkoski Jr. (martie 1982). „Mass extinctions in the marine fossil record”. Science. 215 (4539): 1501–03. Bibcode:1982Sci...215.1501R. doi:10.1126/science.215.4539.1501. PMID 17788674.
- Diamond J; Ashmole, N. P.; Purves, P. E. (). „The present, past and future of human-caused extinctions”. Philos Trans R Soc Lond B Biol Sci. 325 (1228): 469–76; discussion 476–77. Bibcode:1989RSPTB.325..469D. doi:10.1098/rstb.1989.0100 . PMID 2574887.
- Novacek M; Cleland E (). „The current biodiversity extinction event: scenarios for mitigation and recovery”. Proc Natl Acad Sci USA. 98 (10): 5466–70. Bibcode:2001PNAS...98.5466N. doi:10.1073/pnas.091093698. PMC 33235 . PMID 11344295.
- Stern, Harvey; Davidson, Noel (). „Trends in the skill of weather prediction at lead times of 1–14 days”. Quarterly Journal of the Royal Meteorological Society. 141 (692): 2726–36. Bibcode:2015QJRMS.141.2726S. doi:10.1002/qj.2559.
- Bunker, Daniel E.; et al. (noiembrie 2005). „Species Loss and Aboveground Carbon Storage in a Tropical Forest”. Science. 310 (5750): 1029–31. Bibcode:2005Sci...310.1029B. doi:10.1126/science.1117682. PMID 16239439.
- Berkner, L. V.; L. C. Marshall (mai 1965). „On the Origin and Rise of Oxygen Concentration in the Earth's Atmosphere”. Journal of the Atmospheric Sciences. 22 (3): 225–61. Bibcode:1965JAtS...22..225B. doi:10.1175/1520-0469(1965)022<0225:OTOARO>2.0.CO;2 .
- Schopf J (). „Disparate rates, differing fates: tempo and mode of evolution changed from the Precambrian to the Phanerozoic”. Proc Natl Acad Sci USA. 91 (15): 6735–42. Bibcode:1994PNAS...91.6735S. doi:10.1073/pnas.91.15.6735. PMC 44277 . PMID 8041691.
- Szewzyk U; Szewzyk R; Stenström T (). „Thermophilic, anaerobic bacteria isolated from a deep borehole in granite in Sweden”. Proc Natl Acad Sci USA. 91 (5): 1810–13. Bibcode:1994PNAS...91.1810S. doi:10.1073/pnas.91.5.1810. PMC 43253 . PMID 11607462.
- Ade, P. A. R.; Aghanim, N.; Armitage-Caplan, C.; et al. (Planck Collaboration) (). „Planck 2013 results. I. Overview of products and scientific results – Table 9”. Astronomy and Astrophysics. 571: A1. arXiv:1303.5062 . Bibcode:2014A&A...571A...1P. doi:10.1051/0004-6361/201321529.
- Varshalovich, D.A.; Potekhin, A.Y.; Ivanchik, A.V. (). „Testing cosmological variability of fundamental constants”. AIP Conference Proceedings. 506: 503. arXiv:physics/0004062 . Bibcode:2000AIPC..506..503V. doi:10.1063/1.1302777.
- Bibring, J; et al. (). „Global mineralogical and aqueous mars history derived from OMEGA/Mars Express data”. Science. 312 (5772): 400–04. Bibcode:2006Sci...312..400B. doi:10.1126/science.1122659 . PMID 16627738.
archimedes.fas.harvard.edu
- The first known use of physis was by Homer in reference to the intrinsic qualities of a plant: ὣς ἄρα φωνήσας πόρε φάρμακον ἀργεϊφόντης ἐκ γαίης ἐρύσας, καί μοι φύσιν αὐτοῦ ἔδειξε. (So saying, Argeiphontes [=Hermes] gave me the herb, drawing it from the ground, and showed me its nature.) Odyssey 10.302–03 (ed. A.T. Murray). (The word is dealt with thoroughly in Liddell and Scott's Greek Lexicon Arhivat în , la Wayback Machine..) For later but still very early Greek uses of the term, see earlier note.
idrc.ca
- The figure "about one-half of one percent" takes into account the following (See, e.g., Leckie, Stephen (). „How Meat-centred Eating Patterns Affect Food Security and the Environment”. For hunger-proof cities: sustainable urban food systems. Ottawa: International Development Research Centre. ISBN 978-0-88936-882-8. Arhivat din original la ., which takes global average weight as 60 kg.), the total human biomass is the average weight multiplied by the current human population of approximately 6.5 billion (see, e.g., „World Population Information”. U.S. Census Bureau. Accesat în .): Assuming 60–70 kg to be the average human mass (approximately 130–150 lb on the average), an approximation of total global human mass of between 390 billion (390×109) and 455 billion kg (between 845 billion and 975 billion lb, or about 423 million–488 million short tons). The total biomass of all kinds on earth is estimated to be in excess of 6.8 x 1013 kg (75 billion short tons). By these calculations, the portion of total biomass accounted for by humans would be very roughly 0.6%.
knoema.com
- „Natural Resources contribution to GDP”. World Development Indicators (WDI). noiembrie 2014. Arhivat din original la .
lbl.gov
- „Feedback Loops in Global Climate Change Point to a Very Hot 21st Century”. Science Daily. . Arhivat din original la . Accesat în .
merriam-webster.com
- River {definition} Arhivat în , la Wayback Machine. from Merriam-Webster. Accessed February 2010.
nasa.gov
vathena.arc.nasa.gov
- Hugh Anderson; Bernard Walter (). „History of Climate Change”. NASA. Arhivat din original la . Accesat în .
nai.arc.nasa.gov
- „Earth's Oldest Mineral Grains Suggest an Early Start for Life”. NASA Astrobiology Institute. . Arhivat din original la . Accesat în .
www2.jpl.nasa.gov
- Turner, Scott (). „Detailed Images From Europa Point To Slush Below Surface”. NASA. Arhivat din original la . Accesat în .
nbcnews.com
- Malik, Tariq (). „Hunt for Mars life should go underground”. Space.com via NBC News. Accesat în .
nih.gov
ncbi.nlm.nih.gov
- Raup, David M.; J. John Sepkoski Jr. (martie 1982). „Mass extinctions in the marine fossil record”. Science. 215 (4539): 1501–03. Bibcode:1982Sci...215.1501R. doi:10.1126/science.215.4539.1501. PMID 17788674.
- Diamond J; Ashmole, N. P.; Purves, P. E. (). „The present, past and future of human-caused extinctions”. Philos Trans R Soc Lond B Biol Sci. 325 (1228): 469–76; discussion 476–77. Bibcode:1989RSPTB.325..469D. doi:10.1098/rstb.1989.0100 . PMID 2574887.
- Novacek M; Cleland E (). „The current biodiversity extinction event: scenarios for mitigation and recovery”. Proc Natl Acad Sci USA. 98 (10): 5466–70. Bibcode:2001PNAS...98.5466N. doi:10.1073/pnas.091093698. PMC 33235 . PMID 11344295.
- Hatcher, Bruce Gordon (). „Coral reef primary productivity. A hierarchy of pattern and process”. Trends in Ecology and Evolution. 5 (5): 149–155. doi:10.1016/0169-5347(90)90221-X. PMID 21232343.
- Bailey, Robert G. (aprilie 2004). „Identifying Ecoregion Boundaries” (PDF). Environmental Management. 34 (Supplement 1): S14–26. doi:10.1007/s00267-003-0163-6. PMID 15883869. Arhivat din original (PDF) la .
- Bunker, Daniel E.; et al. (noiembrie 2005). „Species Loss and Aboveground Carbon Storage in a Tropical Forest”. Science. 310 (5750): 1029–31. Bibcode:2005Sci...310.1029B. doi:10.1126/science.1117682. PMID 16239439.
- Schopf, JW (). „Fossil evidence of Archaean life”. Philos Trans R Soc Lond B Biol Sci. 361 (1470): 869–85. doi:10.1098/rstb.2006.1834. PMC 1578735 . PMID 16754604.
- Line, M. (). „The enigma of the origin of life and its timing”. Microbiology. 148 (Pt 1): 21–27. doi:10.1099/00221287-148-1-21 . PMID 11782495.
- Schopf J (). „Disparate rates, differing fates: tempo and mode of evolution changed from the Precambrian to the Phanerozoic”. Proc Natl Acad Sci USA. 91 (15): 6735–42. Bibcode:1994PNAS...91.6735S. doi:10.1073/pnas.91.15.6735. PMC 44277 . PMID 8041691.
- Szewzyk U; Szewzyk R; Stenström T (). „Thermophilic, anaerobic bacteria isolated from a deep borehole in granite in Sweden”. Proc Natl Acad Sci USA. 91 (5): 1810–13. Bibcode:1994PNAS...91.1810S. doi:10.1073/pnas.91.5.1810. PMC 43253 . PMID 11607462.
- Wolska K (). „Horizontal DNA transfer between bacteria in the environment”. Acta Microbiol Pol. 52 (3): 233–43. PMID 14743976.
- Horneck G (). „Survival of microorganisms in space: a review”. Adv Space Res. 1 (14): 39–48. doi:10.1016/0273-1177(81)90241-6. PMID 11541716.
- Bibring, J; et al. (). „Global mineralogical and aqueous mars history derived from OMEGA/Mars Express data”. Science. 312 (5772): 400–04. Bibcode:2006Sci...312..400B. doi:10.1126/science.1122659 . PMID 16627738.
nist.gov
physics.nist.gov
- Taylor, Barry N. (). „Introduction to the constants for nonexperts”. National Institute of Standards and Technology. Arhivat din original la . Accesat în .
nps.gov
- „Plant Conservation Alliance – Medicinal Plant Working Groups Green Medicine”. US National Park Services. Arhivat din original la . Accesat în .
oceansatlas.com
park.org
- The Holocene Extinction Arhivat în , la Wayback Machine.. Park.org. Retrieved on November 3, 2016.
- Mass Extinctions Of The Phanerozoic Menu Arhivat în , la Wayback Machine.. Park.org. Retrieved on November 3, 2016.
- Patterns of Extinction Arhivat în , la Wayback Machine.. Park.org. Retrieved on November 3, 2016.
phys.org
- „Photosynthesis more ancient than thought, and most living things could do it”. phys.org (în engleză). Arhivat din original la . Accesat în .
physicalgeography.net
- Pidwirny, Michael (). „Introduction to the Biosphere: Introduction to the Ecosystem Concept”. Fundamentals of Physical Geography (2nd Edition). Arhivat din original la . Accesat în .
- Pidwirny, Michael (). „Introduction to the Biosphere: Organization of Life”. Fundamentals of Physical Geography (2nd edition). Arhivat din original la . Accesat în .
- Pidwirny, Michael (). „Introduction to the Biosphere: Species Diversity and Biodiversity”. Fundamentals of Physical Geography (2nd Edition). Arhivat din original la . Accesat în .
plattsburgh.edu
faculty.plattsburgh.edu
- „How Many Species are There?”. Extinction Web Page Class Notes. Arhivat din original la . Accesat în .
rero.ch
doc.rero.ch
- Wick, Lucia; Möhl, Adrian (). „The mid-Holocene extinction of silver fir (Abies alba) in the Southern Alps: a consequence of forest fires? Palaeobotanical records and forest simulations” (PDF). Vegetation History and Archaeobotany. 15 (4): 435–44. doi:10.1007/s00334-006-0051-0. Arhivat din original (PDF) la . Accesat în .
sciencedaily.com
- „Calculations favor reducing atmosphere for early Earth”. Science Daily. . Arhivat din original la . Accesat în .
- „Tropical Ocean Warming Drives Recent Northern Hemisphere Climate Change”. Science Daily. . Arhivat din original la . Accesat în .
- „Just How Many Species Are There, Anyway?”. Science Daily. mai 2003. Arhivat din original la . Accesat în .
- „Tropical Scientists Find Fewer Species Than Expected”. Science Daily. aprilie 2002. Arhivat din original la . Accesat în .
semanticscholar.org
- Raup, David M.; J. John Sepkoski Jr. (martie 1982). „Mass extinctions in the marine fossil record”. Science. 215 (4539): 1501–03. Bibcode:1982Sci...215.1501R. doi:10.1126/science.215.4539.1501. PMID 17788674.
- Stern, Harvey; Davidson, Noel (). „Trends in the skill of weather prediction at lead times of 1–14 days”. Quarterly Journal of the Royal Meteorological Society. 141 (692): 2726–36. Bibcode:2015QJRMS.141.2726S. doi:10.1002/qj.2559.
space.com
- Choi, Charles Q. (March 21, 2011) New Estimate for Alien Earths: 2 Billion in Our Galaxy Alone | Alien Planets, Extraterrestrial Life & Extrasolar Planets | Exoplanets & Kepler Space Telescope Arhivat în , la Wayback Machine.. Space.com.
theguardian.com
- „The five: areas of deforestation”. the Guardian (în engleză). . Accesat în .
un.org
- „Water for Life”. Un.org. . Arhivat din original la . Accesat în .
unep.org
- Clarke, Robin; Robert Lamb; Dilys Roe Ward, ed. (). „Decline and loss of species”. Global environment outlook 3: past, present and future perspectives. London; Sterling, VA: Nairobi, Kenya: UNEP. ISBN 978-92-807-2087-7.
uni-hamburg.de
biologie.uni-hamburg.de
- Sengbusch, Peter V. „The Flow of Energy in Ecosystems – Productivity, Food Chain, and Trophic Level”. Botany online. University of Hamburg Department of Biology. Arhivat din original la . Accesat în .
usgs.gov
biology.usgs.gov
- Withers, Mark A.; et al. (). „Changing Patterns in the Number of Species in North American Floras”. Land Use History of North America. Arhivat din original la . Accesat în . Website based on the contents of the book: Sisk, T.D., ed. (). Perspectives on the land use history of North America: a context for understanding our changing environment (ed. Revised September 1999). U.S. Geological Survey, Biological Resources Division. USGS/BRD/BSR-1998-0003.
- „Glossary”. Status and Trends of the Nation's Biological Resources. Reston, VA: Department of the Interior, Geological Survey. . SuDocs No. I 19.202:ST 1/V.1-2. Arhivat din original la .
geonames.usgs.gov
- USGS – U.S. Geological Survey – FAQs Arhivat în , la Wayback Machine., No. 17 What is the difference between mountain, hill, and peak; lake and pond; or river and creek?
vangoghletters.org
- „022 (022, 16): To Theo van Gogh. London, Thursday, 30 April 1874. - Vincent van Gogh Letters”, Vangoghletters.org, accesat în
web.archive.org
- The first known use of physis was by Homer in reference to the intrinsic qualities of a plant: ὣς ἄρα φωνήσας πόρε φάρμακον ἀργεϊφόντης ἐκ γαίης ἐρύσας, καί μοι φύσιν αὐτοῦ ἔδειξε. (So saying, Argeiphontes [=Hermes] gave me the herb, drawing it from the ground, and showed me its nature.) Odyssey 10.302–03 (ed. A.T. Murray). (The word is dealt with thoroughly in Liddell and Scott's Greek Lexicon Arhivat în , la Wayback Machine..) For later but still very early Greek uses of the term, see earlier note.
- „World Climates”. Blue Planet Biomes. Arhivat din original la . Accesat în .
- „Calculations favor reducing atmosphere for early Earth”. Science Daily. . Arhivat din original la . Accesat în .
- „Past Climate Change”. U.S. Environmental Protection Agency. Arhivat din original la . Accesat în .
- Hugh Anderson; Bernard Walter (). „History of Climate Change”. NASA. Arhivat din original la . Accesat în .
- Weart, Spencer (iunie 2006). „The Discovery of Global Warming”. American Institute of Physics. Arhivat din original la . Accesat în .
- „Earth's Oldest Mineral Grains Suggest an Early Start for Life”. NASA Astrobiology Institute. . Arhivat din original la . Accesat în .
- Murphy, J.B.; R.D. Nance (). „How do supercontinents assemble?”. American Scientist. 92 (4): 324. doi:10.1511/2004.4.324. Arhivat din original la . Accesat în .
- Wick, Lucia; Möhl, Adrian (). „The mid-Holocene extinction of silver fir (Abies alba) in the Southern Alps: a consequence of forest fires? Palaeobotanical records and forest simulations” (PDF). Vegetation History and Archaeobotany. 15 (4): 435–44. doi:10.1007/s00334-006-0051-0. Arhivat din original (PDF) la . Accesat în .
- The Holocene Extinction Arhivat în , la Wayback Machine.. Park.org. Retrieved on November 3, 2016.
- Mass Extinctions Of The Phanerozoic Menu Arhivat în , la Wayback Machine.. Park.org. Retrieved on November 3, 2016.
- Patterns of Extinction Arhivat în , la Wayback Machine.. Park.org. Retrieved on November 3, 2016.
- „Tropical Ocean Warming Drives Recent Northern Hemisphere Climate Change”. Science Daily. . Arhivat din original la . Accesat în .
- „Water for Life”. Un.org. . Arhivat din original la . Accesat în .
- „World”. CIA – World Fact Book. Arhivat din original la . Accesat în .
- Water Vapor in the Climate System, Special Report, American Geophysical Union, December 1995.
- Vital Water. UNEP.
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Britannica Online. „Lake (physical feature)”. Arhivat din original la . Accesat în .
[a Lake is] any relatively large body of slowly moving or standing water that occupies an inland basin of appreciable size. Definitions that precisely distinguish lakes, ponds, swamps, and even rivers and other bodies of nonoceanic water are not well established. It may be said, however, that rivers and streams are relatively fast moving; marshes and swamps contain relatively large quantities of grasses, trees, or shrubs; and ponds are relatively small in comparison to lakes. Geologically defined, lakes are temporary bodies of water.
- „Lake Definition”. Dictionary.com. Arhivat din original la . Accesat în .
- River {definition} Arhivat în , la Wayback Machine. from Merriam-Webster. Accessed February 2010.
- USGS – U.S. Geological Survey – FAQs Arhivat în , la Wayback Machine., No. 17 What is the difference between mountain, hill, and peak; lake and pond; or river and creek?
- Pidwirny, Michael (). „Introduction to the Biosphere: Introduction to the Ecosystem Concept”. Fundamentals of Physical Geography (2nd Edition). Arhivat din original la . Accesat în .
- Pidwirny, Michael (). „Introduction to the Biosphere: Organization of Life”. Fundamentals of Physical Geography (2nd edition). Arhivat din original la . Accesat în .
- Bailey, Robert G. (aprilie 2004). „Identifying Ecoregion Boundaries” (PDF). Environmental Management. 34 (Supplement 1): S14–26. doi:10.1007/s00267-003-0163-6. PMID 15883869. Arhivat din original (PDF) la .
- „Definition of Life”. California Academy of Sciences. . Arhivat din original la . Accesat în .
- The figure "about one-half of one percent" takes into account the following (See, e.g., Leckie, Stephen (). „How Meat-centred Eating Patterns Affect Food Security and the Environment”. For hunger-proof cities: sustainable urban food systems. Ottawa: International Development Research Centre. ISBN 978-0-88936-882-8. Arhivat din original la ., which takes global average weight as 60 kg.), the total human biomass is the average weight multiplied by the current human population of approximately 6.5 billion (see, e.g., „World Population Information”. U.S. Census Bureau. Accesat în .): Assuming 60–70 kg to be the average human mass (approximately 130–150 lb on the average), an approximation of total global human mass of between 390 billion (390×109) and 455 billion kg (between 845 billion and 975 billion lb, or about 423 million–488 million short tons). The total biomass of all kinds on earth is estimated to be in excess of 6.8 x 1013 kg (75 billion short tons). By these calculations, the portion of total biomass accounted for by humans would be very roughly 0.6%.
- Sengbusch, Peter V. „The Flow of Energy in Ecosystems – Productivity, Food Chain, and Trophic Level”. Botany online. University of Hamburg Department of Biology. Arhivat din original la . Accesat în .
- Pidwirny, Michael (). „Introduction to the Biosphere: Species Diversity and Biodiversity”. Fundamentals of Physical Geography (2nd Edition). Arhivat din original la . Accesat în .
- „How Many Species are There?”. Extinction Web Page Class Notes. Arhivat din original la . Accesat în .
- „Just How Many Species Are There, Anyway?”. Science Daily. mai 2003. Arhivat din original la . Accesat în .
- Withers, Mark A.; et al. (). „Changing Patterns in the Number of Species in North American Floras”. Land Use History of North America. Arhivat din original la . Accesat în . Website based on the contents of the book: Sisk, T.D., ed. (). Perspectives on the land use history of North America: a context for understanding our changing environment (ed. Revised September 1999). U.S. Geological Survey, Biological Resources Division. USGS/BRD/BSR-1998-0003.
- „Tropical Scientists Find Fewer Species Than Expected”. Science Daily. aprilie 2002. Arhivat din original la . Accesat în .
- „Photosynthesis more ancient than thought, and most living things could do it”. phys.org (în engleză). Arhivat din original la . Accesat în .
- „flora”. Merriam-Webster Online Dictionary. Merriam-Webster. Arhivat din original la . Accesat în .
- „Glossary”. Status and Trends of the Nation's Biological Resources. Reston, VA: Department of the Interior, Geological Survey. . SuDocs No. I 19.202:ST 1/V.1-2. Arhivat din original la .
- „Feedback Loops in Global Climate Change Point to a Very Hot 21st Century”. Science Daily. . Arhivat din original la . Accesat în .
- „Natural Resources contribution to GDP”. World Development Indicators (WDI). noiembrie 2014. Arhivat din original la .
- „GDP – Composition by Sector”. The World Factbook. [Central Intelligence Agency. Arhivat din original la . Accesat în .
- „Plant Conservation Alliance – Medicinal Plant Working Groups Green Medicine”. US National Park Services. Arhivat din original la . Accesat în .
- Oosthoek, Jan (). „Environmental History: Between Science & Philosophy”. Environmental History Resources. Arhivat din original la . Accesat în .
- Para un ejemplo de varias opiniones, véase: „On the Beauty of Nature”. The Wilderness Society. Arhivat din original la . Accesat în . y el análisis de la materia de Ralph Waldo Emerson: Emerson, Ralph Waldo (). „Beauty”. Nature; Addresses and Lectures.
- „Matter (physics)”. McGraw-Hill's Access Science: Encyclopedia of Science and Technology Online. Arhivat din original la . Accesat în .
- Taylor, Barry N. (). „Introduction to the constants for nonexperts”. National Institute of Standards and Technology. Arhivat din original la . Accesat în .
- Turner, Scott (). „Detailed Images From Europa Point To Slush Below Surface”. NASA. Arhivat din original la . Accesat în .
- Choi, Charles Q. (March 21, 2011) New Estimate for Alien Earths: 2 Billion in Our Galaxy Alone | Alien Planets, Extraterrestrial Life & Extrasolar Planets | Exoplanets & Kepler Space Telescope Arhivat în , la Wayback Machine.. Space.com.
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- Para un ejemplo de varias opiniones, véase: „On the Beauty of Nature”. The Wilderness Society. Arhivat din original la . Accesat în . y el análisis de la materia de Ralph Waldo Emerson: Emerson, Ralph Waldo (). „Beauty”. Nature; Addresses and Lectures.
worldcat.org
- Poincaré, Jules Henri (). The foundations of science; Science and hypothesis, The value of science, Science and method. The Science Press. pp. 366-7. OCLC 2569829.