Indication of Global Deforestation at the Cretaceous-Tertiary Boundary by New Zealand Fern Spike
The devastating effect on terrestrial plant communities of a bolide impact at the Cretaceous-Tertiary boundary is shown in fossil pollen and spore assemblages by a diverse flora being abruptly replaced by one dominated by a few species of fern. Well documented in North America, this fern spike signa...
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| Veröffentlicht in: | Science (American Association for the Advancement of Science) 2001-11, Vol.294 (5547), p.1700-1702 |
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| creator | Vajda, Vivi Raine, J. Ian Hollis, Christopher J. |
| description | The devastating effect on terrestrial plant communities of a bolide impact at the Cretaceous-Tertiary boundary is shown in fossil pollen and spore assemblages by a diverse flora being abruptly replaced by one dominated by a few species of fern. Well documented in North America, this fern spike signals widespread deforestation due to an impact winter or massive wildfires. A Southern Hemisphere record of a fern spike, together with a large iridium anomaly, indicates that the devastation was truly global. Recovery of New Zealand plant communities followed a pattern consistent with major climatic perturbations occurring after an impact winter that was possibly preceded by global wildfires. |
| doi_str_mv | 10.1126/science.1064706 |
| format | Article |
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Recovery of New Zealand plant communities followed a pattern consistent with major climatic perturbations occurring after an impact winter that was possibly preceded by global wildfires.</description><subject>Angiosperms</subject><subject>Animals</subject><subject>Carbon - metabolism</subject><subject>Carbon Dioxide - metabolism</subject><subject>Cold Climate</subject><subject>Community Relations</subject><subject>Congenital Impairments</subject><subject>Cycadopsida - physiology</subject><subject>Deforestation</subject><subject>Disasters</subject><subject>Dust</subject><subject>Earth sciences</subject><subject>Earth, ocean, space</subject><subject>Ecosystem</subject><subject>Evidence</subject><subject>Exact sciences and technology</subject><subject>Ferns</subject><subject>Ferns - physiology</subject><subject>Fires</subject><subject>Flowers & plants</subject><subject>Forest trees</subject><subject>Fossils</subject><subject>Freshwater</subject><subject>Geology</subject><subject>Geology, Stratigraphic</subject><subject>Gymnosperms</subject><subject>Magnoliopsida - physiology</subject><subject>Meteoroids</subject><subject>Meteors & meteorites</subject><subject>New Zealand</subject><subject>North America</subject><subject>Pollen</subject><subject>Pollen - physiology</subject><subject>Pteridophyta</subject><subject>Pterophyta</subject><subject>Spores</subject><subject>Spores - physiology</subject><subject>Stratigraphy</subject><subject>Sunlight</subject><subject>Tertiary period</subject><subject>Tree ferns</subject><subject>Trees</subject><subject>Trees - physiology</subject><subject>Wildfires</subject><issn>0036-8075</issn><issn>1095-9203</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2001</creationdate><recordtype>article</recordtype><sourceid>EIF</sourceid><sourceid>8G5</sourceid><sourceid>BEC</sourceid><sourceid>BENPR</sourceid><sourceid>GUQSH</sourceid><sourceid>M2O</sourceid><recordid>eNqN089v0zAUB_AIgVgZnLkgFCHx40A2Pzvxj-NWWKlUrYcNDlyC47yUdGlc7FSw_x6XRpShaq1ySGR_bL-85BtFz4GcAFB-6k2NrcETIDwVhD-IBkBUlihK2MNoQAjjiSQiO4qeeD8nJMwp9jg6AhAUSAaD6Nu4LWuju9q2sa3iUWML3cQfsLIOfbcZ113cfcd46LDTBu3KJ9foulq72_jcrtpy_VDcxpf4M_6KutFtGV-ga-OrZX2DT6NHlW48Puvvx9Hni4_Xw0_JZDoaD88miZaMdYkQyqRCFJSrVBSaKKNLDloUmImq1JBmqKGgjKaKay454SgVUSnSsKpMgR1Hbzf7Lp39sQq154vaG2xCOeuSc5EyBpwAD_LN_ZIyIiBN90LKJaWSi_0QGA-Fw14IEsKryP1Hh36olP6p8dV_cG5Xrg2dXp-aCcmBbNFMN5jXbWU7p816x_xMEi6BiDV6vwPNsEWnG9tiVYfhf3myg4erxEVtdvl3d3wgHf7qZnrlfT6-ujyYTr8cTM9Hh1I5mtzTip4a2zQ4wzz8t8PpHX664cZZ7x1W-dLVi5CKHEi-jmnexzTvYxpWvOy_2qpYYLn1fS4DeN0D7Y1uKqdbU_utSwGYoiq4Fxs39511f-cZkRlVnP0G5i5GYQ</recordid><startdate>20011123</startdate><enddate>20011123</enddate><creator>Vajda, Vivi</creator><creator>Raine, J. 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Ian</au><au>Hollis, Christopher J.</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Indication of Global Deforestation at the Cretaceous-Tertiary Boundary by New Zealand Fern Spike</atitle><jtitle>Science (American Association for the Advancement of Science)</jtitle><addtitle>Science</addtitle><date>2001-11-23</date><risdate>2001</risdate><volume>294</volume><issue>5547</issue><spage>1700</spage><epage>1702</epage><pages>1700-1702</pages><issn>0036-8075</issn><eissn>1095-9203</eissn><coden>SCIEAS</coden><abstract>The devastating effect on terrestrial plant communities of a bolide impact at the Cretaceous-Tertiary boundary is shown in fossil pollen and spore assemblages by a diverse flora being abruptly replaced by one dominated by a few species of fern. Well documented in North America, this fern spike signals widespread deforestation due to an impact winter or massive wildfires. A Southern Hemisphere record of a fern spike, together with a large iridium anomaly, indicates that the devastation was truly global. Recovery of New Zealand plant communities followed a pattern consistent with major climatic perturbations occurring after an impact winter that was possibly preceded by global wildfires.</abstract><cop>Washington, DC</cop><pub>American Society for the Advancement of Science</pub><pmid>11721051</pmid><doi>10.1126/science.1064706</doi><tpages>3</tpages></addata></record> |
| fulltext | fulltext |
| identifier | ISSN: 0036-8075 |
| ispartof | Science (American Association for the Advancement of Science), 2001-11, Vol.294 (5547), p.1700-1702 |
| issn | 0036-8075 1095-9203 |
| language | eng |
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| source | American Association for the Advancement of Science; Jstor Complete Legacy; MEDLINE |
| subjects | Angiosperms Animals Carbon - metabolism Carbon Dioxide - metabolism Cold Climate Community Relations Congenital Impairments Cycadopsida - physiology Deforestation Disasters Dust Earth sciences Earth, ocean, space Ecosystem Evidence Exact sciences and technology Ferns Ferns - physiology Fires Flowers & plants Forest trees Fossils Freshwater Geology Geology, Stratigraphic Gymnosperms Magnoliopsida - physiology Meteoroids Meteors & meteorites New Zealand North America Pollen Pollen - physiology Pteridophyta Pterophyta Spores Spores - physiology Stratigraphy Sunlight Tertiary period Tree ferns Trees Trees - physiology Wildfires |
| title | Indication of Global Deforestation at the Cretaceous-Tertiary Boundary by New Zealand Fern Spike |
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