Diaspores and phyto-remains accidentally transported to the Antarctic Station during three expeditions

Lityńska−Zając, Maria; Chwedorzewska, Katarzyna J.; Olech, Maria; Korczak−Abshire, Małgorzata; Augustyniuk-Kram, Anna

doi:10.1007/s10531-012-0371-6

Cited by 30 publications

(36 citation statements)

References 41 publications

(49 reference statements)

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“…Also human dependent seed transport may play a role in the species spread, similarly to the way in which seeds get transported to Antarctic research stations (see e.g. Lee and Chown 2009;Lityńska-Zając et al 2012).…”

Section: Soil Seed Bank Size In Antarctic Conditionsmentioning

confidence: 99%

Spatial structure of the soil seed bank of Poa annua L.—alien species in the Antarctica

et al. 2014

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Poa annua L. (annual bluegrass) is the only non-native flowering plant species that has successfully established a breeding population in the maritime Antarctic and has been shown to maintain a soil seed bank. The characteristic of the spatial structure of the Antarctic population of this species is the formation of distinct dense clumps-tussocks. In the temperate zone the species is only loosely tufted. We focused on the characteristics of seed deposition associated with the tussocks and some aspects of the spatial heterogeneity of the soil seed bank of P. annua in the Antarctic. We wanted to assess the microspatial structure of the soil seed bank of annual bluegrass at Arctowski Station. Therefore we compared the number of seeds deposited underneath and in the vicinity of P. annua clumps. Our results indicate that P. annua in the Antarctic maintains a soil seed bank comparable to species typical for the polar tundra. The microspatial structure of P. annua soil seed bank in the Antarctic is highly associated with the presence of tussocks. Seeds are deposited underneath the tussock rather than in the vicinity of the clump. Our results also indicate that seeds are able to survive the Antarctic winter and readily germinate under optimal conditions.

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Section: Soil Seed Bank Size In Antarctic Conditionsmentioning

confidence: 99%

Spatial structure of the soil seed bank of Poa annua L.—alien species in the Antarctica

et al. 2014

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“…Their manuscript submission was received by the editorial staff on January 5, 2015 and published online on March 10, 2015 (Hughes et al 2015) we were working on the initial steps of eradication just as snow cover retreated in February and March 2015 (see report: Eradication of a nonnative grass P. annua L. from ASPA No 128 Western Shore of Admiralty Bay, King George Island, South Shetland Islands 2015). All of our earlier research regarding the biology and genetics of P. annua at Arctowski (Olech and Chwedorzewska 2011;Lityńska-Zając et al 2012;Wódkie-wicz et al 2013Wódkie-wicz et al , 2014Molina-Montenegro et al 2014;Pastorczyk et al 2014;Chwedorzewska et al 2015;Galera et al 2015;Giełwanowska et al 2015; was aimed at informed eradication/control of the species. Our actions preceded by the stated initial research enabled an analysis of the invasion process in the Antarctic and provided detailed documentation of eradication.…”

Section: Discussionmentioning

confidence: 99%

“…The project was preceded by detailed necessary research investigating the biology of the species in accordance to guidelines regarding the eradication/control of alien species by Simberloff (2003a, b). The distribution, morphology, ecology, genetics, physiology, expansion history and potential sources of introduction of the species was determined through multi-author interdisciplinary studies (e.g., see Olech and Chwedorzewska 2011;Lityńska-Zając et al 2012;MolinaMontenegro et al 2014;Pastorczyk et al 2014;Chwedorzewska et al 2015;Giełwanowska and Kellmann-Sopyła 2015;Giełwanowska et al 2015;. The research showed that the species is expanding in the anthropogenic sites as well as starts to invade native communities (Olech and Chwedorzewska 2011), has a distinctive morphological architecture in response to local harsh conditions and produces a viable soil seed bank (Wódkiewicz et al 2013(Wódkiewicz et al , 2014.…”

Section: Introductionmentioning

confidence: 99%

“…The research showed that the species is expanding in the anthropogenic sites as well as starts to invade native communities (Olech and Chwedorzewska 2011), has a distinctive morphological architecture in response to local harsh conditions and produces a viable soil seed bank (Wódkiewicz et al 2013(Wódkiewicz et al , 2014. Poa annua has been accidentally introduced from Poland, and the population probably has been subsequently replenished from other sources like Argentina and Chile (where the part of cargo came from, Lityńska-Zając et al 2012). This hypothesis seems to be supported by high level of genetic variability of Antarctic population (Chwedorzewska 2008;Chwedorzewska and Bednarek 2012).…”

Section: Introductionmentioning

confidence: 99%

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First step to eradication of Poa annua L. from Point Thomas Oasis (King George Island, South Shetlands, Antarctica)

et al. 2016

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Poa annua, an alien species reported from the Antarctic continent and many Antarctic and sub-Antarctic islands, was accidentally introduced in the vicinity of the Polish Antarctic Station H. Arctowski. Recently the species has been found entering native plant communities. In almost 30 years it dispersed over 250 m from the site it was first observed and can therefore be considered invasive. We report the first steps to eradicate the species following the initial research to quantify the biology, ecology and genetics of the species. After detailed mapping of all 1439 tussocks located in the Arctowski Station area we removed 314 tussocks closest to a moss carpet formation (native plant community of high conservation value). All of the 49 tussocks growing in the Ecology Glacier forefield were removed. It is the biggest alien plant eradication act conducted so far in Antarctica. We plan to continue the eradication process and monitor the eradicated sites. This will provide valuable information on impacts and issues related to removal of alien species in the maritime Antarctic and will help in informing future decisions on management of other plant invasions in the region. Given the increasing human traffic to the Antarctic and the associated risks of invasion our results will be important not only for Arctowski but also for the whole Antarctic region.

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“…An excellent vector for the transfer of fungal and other propagules to and within Antarctic regions is via humans and associated cargo, including food (Whinam et al 2005;Chwedorzewska 2009;Hughes et al 2011;Lityńska−Zając et al 2012;Chwedorzewska et al 2013). Hughes et al (2011) identified 19 spe− cies of fungi on rotting fruit and vegetables, also on the packaging and associated soil, most of which have previously been reported in different regions of the Ant− arctic.…”

Section: Introductionmentioning

confidence: 99%

An analysis of fungal propagules transported to the Henryk Arctowski Antarctic Station

Augustyniuk-Kram¹,

Chwedorzewska²,

Korczak−Abshire³

et al. 2013

Polish Polar Research

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During three austral summer seasons, dust and soil from clothes, boots and equip− ment of members of scientific expeditions and tourists visiting the Polish Antarctic Station Henryk Arctowski were collected and analysed for the presence of fungal propagules. Of a to− tal of 60 samples, 554 colonies of fungi belonging to 19 genera were identified. Colonies of the genus Cladosporium, Penicillium and non−sporulating fungus (Mycelia sterilia) domi− nated in the examined samples. The microbiological assessment of air for the presence of fungi was also conducted at two points in the station building and two others outside the sta− tion. A total of 175 fungal colonies belonging to six genera were isolated. Colonies of the ge− nus Penicillium were the commonest in the air samples. The potential epidemiological conse− quences for indigenous species as a result of unintentional transport of fungal propagules to the Antarctic biome are discussed in the light of rapid climate change in some parts of the Ant− arctic and adaptation of fungi to extreme conditions.

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Diaspores and phyto-remains accidentally transported to the Antarctic Station during three expeditions

Cited by 30 publications

References 41 publications

Spatial structure of the soil seed bank of Poa annua L.—alien species in the Antarctica

Spatial structure of the soil seed bank of Poa annua L.—alien species in the Antarctica

First step to eradication of Poa annua L. from Point Thomas Oasis (King George Island, South Shetlands, Antarctica)

An analysis of fungal propagules transported to the Henryk Arctowski Antarctic Station

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