File:Five past mass extinction events—periods.jpg
Aus Wikimedia Commons, dem freien Medienarchiv
Zur Navigation springen
Zur Suche springen
Five_past_mass_extinction_events—periods.jpg (800 × 492 Pixel, Dateigröße: 64 KB, MIME-Typ: image/jpeg)
Dateiinformationen
Strukturierte Daten
Bildtexte
Beschreibung[Bearbeiten]
BeschreibungFive past mass extinction events—periods.jpg | Original description, according to the source, p. 258: "Figure 8.1 There have been five past mass extinction events—periods when natural events changed Earth’s environment so dramatically that between 60–95% of species were wiped away forever—over Earth’s geological history. So far, the most dramatic extinction event occurred at the end of the Permian period, about 250 million years ago, and thought to be the result of widespread volcanic activity and climate change. The most recent mass extinction, at the end of the Cretaceous period about 65 million years ago and thought to be the result of a massive asteroid impact, saw the disappearance of non-avian dinosaurs. Source: OpenStax, 2019, CC BY 4.0. There have been five past mass extinction events—periods when natural events changed Earth’s environment so dramatically that between 60–95% of species were wiped away forever—over Earth’s geological history. So far, the most dramatic extinction event occurred at the end of the Permian period, about 250 million years ago, and thought to be the result of widespread volcanic activity and climate change. The most recent mass extinction, at the end of the Cretaceous period about 65 million years ago and thought to be the result of a massive asteroid impact, saw the disappearance of non-avian dinosaurs. Source: OpenStax, 2019, CC BY 4.0.". Context in the source, page 258: "While many extinction events have been rather limited in scope and, hence, caused only one or a few extinctions at a time, there have been instances where perturbations were so impactful that they drove very large numbers of species to extinction over a short period of time. There have been five such past mass extinction events—periods marked by the sudden and dramatic loss of a large percentage of species (Figure 8.1). But these mass extinctions have also been followed by periods that favoured increased rates of speciation, during which new species evolved to fill the niches left empty by the extinctions.". |
Datum | |
Quelle | John W. Wilson, Richard B. Primack: "Conservation Biology in Sub-Saharan Africa", Chapter 8: "Extinction Is Forever", Open Book Publishers, Cambridge, UK, 2019, ISBN: 978-1-78374-751-1, pp. 257–296, here p. 258, Figure 8.1, DOI: https://doi.org/10.11647/OBP.0177, License: Creative Commons Attribution 4.0 International license (CC BY 4.0). Original URL of the image: https://books.openbookpublishers.com/10.11647/obp.0177/image/Fig_8.1.jpg |
Urheber | Source: OpenStax, 2019 |
Genehmigung (Weiternutzung dieser Datei) |
Diese Datei ist lizenziert unter der Creative-Commons-Lizenz „Namensnennung 4.0 international“.
|
Dateiversionen
Klicke auf einen Zeitpunkt, um diese Version zu laden.
Version vom | Vorschaubild | Maße | Benutzer | Kommentar | |
---|---|---|---|---|---|
aktuell | 20:03, 16. Dez. 2023 | 800 × 492 (64 KB) | Anglo-Araneophilus (Diskussion | Beiträge) | {{Information |Description=Original description, according to the source, p. 258: "Figure 8.1 There have been five past mass extinction events—periods when natural events changed Earth’s environment so dramatically that between 60–95% of species were wiped away forever—over Earth’s geological history. So far, the most dramatic extinction event occurred at the end of the Permian period, about 250 million years ago, and thought to be the result of widespread volcanic activity and climate change... |
Du kannst diese Datei nicht überschreiben.
Dateiverwendung
Keine Seiten verwenden diese Datei.
Globale Dateiverwendung
Die nachfolgenden anderen Wikis verwenden diese Datei:
- Verwendung auf de.wikipedia.org
Versteckte Kategorie: