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Author Hughes, Kevin A ♦ Lee, Jennifer E ♦ Ware, Chris ♦ Kiefer, K ♦ Bergstrom, Dana Michelle
Source PANGAEA
Content type Text
Publisher PANGAEA
File Format TSV
Language English
Subject Domain (in DDC) Natural sciences & mathematics ♦ Life sciences; biology ♦ Ecology
Subject Keyword Ecology
Abstract Antarctic ecosystems are at risk from the introduction of invasive species. The first step in the process of invasion is the transportation of alien species to Antarctic in a viable state. However, the effect of long-distance human-mediated dispersal, over different time-scales, on propagule viability is not well known. We assessed the viability of Poa trivialis seeds transported to Antarctica from the UK, South Africa and Australia by ship or by ship and aircraft. Following transportation to the Antarctic Treaty area, no reduction in seed viability was found, despite journey times lasting up to 284 days and seeds experiencing temperatures as low as -1.5°C. This work confirms that human-mediated transport may overcome the dispersal barrier for some propagules, and highlights the need for effective pre-departure biosecurity measures.
Description Project(s):International Polar Year (2007-2008) (IPY);Note: 109 data points
Part of series Supplement to: Hughes, KA et al. (2010): Impact of anthropogenic transportation to Antarctica on alien seed viability. Polar Biology, 33(8), 1125-1130, https://doi.org/10.1007/s00300-010-0801-4
Educational Use Research
Learning Resource Type Data Set
Publisher Date 2010-05-13
Rights License https://creativecommons.org/licenses/by/3.0/


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