Around the world in 500 years: Inter-regional spread of alien species over recent centuries

Simple item page
dc.contributor.authorSeebens, Hannoen_ZA
dc.contributor.authorBlackburn, Tim M.en_Za
dc.contributor.authorHulme, Philip E.en_ZA
dc.contributor.authorVan Kleunen, Marken_ZA
dc.contributor.authorLiebhold, Andrew M.en_ZA
dc.contributor.authorOrlova-Bienkowskaja, Marinaen_ZA
dc.contributor.authorPyšek, Petren_ZA
dc.contributor.authorSchindler, Stefanen_ZA
dc.contributor.authorEssl, Franzen_ZA
dc.date.accessioned2023-04-18T07:37:47Z
dc.date.available2023-04-18T07:37:47Z
dc.date.issued2021
dc.descriptionCITATION: Seebens, H, Blackburn, TM, Hulme, PE, et al. Around the world in 500 years: Inter-regional spread of alien species over recent centuries. Global Ecol Biogeogr. 2021; 30: 1621– 1632. doi.10.1111/geb.13325en_ZA
dc.descriptionThe original publication is available at: wiley.comen_ZA
dc.description.abstractAim: The number of alien species has been increasing for centuries world-wide, but temporal changes in the dynamics of their inter-regional spread remain unclear. Here, we analyse changes in the rate and extent of inter-regional spread of alien species over time and how these dynamics vary among major taxonomic groups. Location: Global. Time period: 1500–2010. Major taxa studied: Vascular plants, mammals, birds, fishes, arthropods and other invertebrates. Methods: Our analysis is based on the Alien Species First Record Database, which comprises >60,000 entries describing the year when an alien species was first recorded in a region (mostly countries and large islands) where it later established as an alien species. Based on the number and distribution of first records, we calculated metrics of spread between regions, which we termed “inter-regional spread”, and conducted statistical analyses to assess variations over time and across taxonomic groups. Results: Almost all (>90%) species introduced before 1700 are found in more than one region today. Inter-regional spread often took centuries and is ongoing for many species. The intensity of inter-regional spread increased over time, with particularly steep increases after 1800. Rates of spread peaked for plants in the late 19th century, for birds and invertebrates in the late 20th century, and remained largely constant for mammals and fishes. Inter-regional spread for individual species showed hump-shaped temporal patterns, with the highest rates of spread at intermediate alien range sizes. Approximately 50% of widespread species showed signs of declines in spread rates. Main conclusions: Our results show that, although rates of spread have declined for many widespread species, for entire taxonomic groups they have tended to increase continuously over time. The large numbers of alien species that are currently observed in only a single region are anticipated to be found in many other regions in the future.en_ZA
dc.description.versionPublisher’s versionen_ZA
dc.format.extent12 pages : illustrations (some color)en_ZA
dc.identifier.citationSeebens, H, Blackburn, TM, Hulme, PE, et al. Around the world in 500 years: Inter-regional spread of alien species over recent centuries. Global Ecol Biogeogr. 2021; 30: 1621– 1632. doi.10.1111/geb.13325en_ZA
dc.identifier.issn1466-822X (print)en_ZA
dc.identifier.issn1466-8238 (online)en_ZA
dc.identifier.otherdoi.10.1111/geb.13325en_ZA
dc.identifier.urihttp://hdl.handle.net/10019.1/126791
dc.language.isoen_ZAen_ZA
dc.publisherJohn Wiley & Sons Ltd.en_ZA
dc.rights.holderAuthors retain copyrighten_ZA
dc.subjectAlien species -- Accumulationen_ZA
dc.subjectBiological invasionsen_ZA
dc.subjectAlien species -- Geographical distributionen_ZA
dc.subjectGlobal environmental change -- Effect of human beings on -- Historyen_ZA
dc.subjectInvasion curvesen_ZA
dc.subjectSpatio-temporal data modelen_ZA
dc.titleAround the world in 500 years: Inter-regional spread of alien species over recent centuriesen_ZA
dc.typeArticleen_ZA
Files
Original bundle
Now showing 1 - 1 of 1
Thumbnail Image
Name:
hanno_around_2021.pdf
Size:
909.77 KB
Format:
Adobe Portable Document Format
Description:
download article
Download
License bundle
Now showing 1 - 1 of 1
Thumbnail Image
Name:
license.txt
Size:
1.71 KB
Format:
Item-specific license agreed upon to submission
Description:
Download
Collections
Research Articles (Botany and Zoology)