Impact of the introduced grass Agrostis stolonifera on vegetation and soil fauna communities at Marion Island, sub-Antarctic

Gremmen, N.J.M.; Chown, Steven L.; Marshall, David J.

doi:10.1016/s0006-3207(97)00178-x

Cited by 84 publications

(63 citation statements)

References 15 publications

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“…In the sub-Antarctic Islands Frenot et al (2005) already recorded 108 alien vascular plants and likewise the most abundant families were Poaceae (39), Asteraceae (20). They have not only survived but also spread and successfully competed with native species (Frenot et al 1999(Frenot et al , 2001Gremmen and Smith 1999;Gremmen et al 1998), thus they may serve as a potential source of exotic biota to the ameliorating maritime Antarctic.…”

Section: Discussionmentioning

confidence: 99%

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

et al. 2012

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The aim of the project was to assess the size and species range of alien plant diaspores and phyto-remains transported into the Polish Antarctic Station during three Antarctic expeditions. Our study clearly demonstrates that many diaspores can be quite easily unintentionally transported in good conditions to the Antarctic. In the analyzed material there were present diaspores of invasive species. All identified species belong to 20 families. The most abundant were Asteraceae and Poaceae species. The most interesting finding was the presence of caryopses of Poa annua, the first alien angiosperm species which already established a stable breeding population in the Antarctic. Base on our results, we can predict that risk of establishment of anther alien plant species in the vicinity of ''Arctowski'' Station is very high.

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Section: Discussionmentioning

confidence: 99%

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

et al. 2012

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“…On Marion Island, the invasive Sagina procumbens has rapidly expanded its distribution in the last decade (Gremmen & Smith, 1999). A second invasive, Agrostis stolonifera, dominates various habitats, especially drainage lines, modifying vegetation and associated soil fauna (Gremmen, Chown & Marshall, 1998). These two species represent the most significant threat to communities, although other patchily distributed invasives are also apparently spreading (e.g.…”

Section: Current Knowledge Of Alien Species In Sub-antarctic and mentioning

confidence: 99%

Biological invasions in the Antarctic: extent, impacts and implications

Frénot

Chown

Whinam³

et al. 2005

Biol. Rev.

606

822

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Alien microbes, fungi, plants and animals occur on most of the sub-Antarctic islands and some parts of the Antarctic continent. These have arrived over approximately the last two centuries, coincident with human activity in the region. Introduction routes have varied, but are largely associated with movement of people and cargo in connection with industrial, national scientific program and tourist operations. The large majority of aliens are European in origin. They have both direct and indirect impacts on the functioning of speciespoor Antarctic ecosystems, in particular including substantial loss of local biodiversity and changes to ecosystem processes. With rapid climate change occurring in some parts of Antarctica, elevated numbers of introductions and enhanced success of colonization by aliens are likely, with consequent increases in impacts on ecosystems. Mitigation measures that will substantially reduce the risk of introductions to Antarctica and the sub-Antarctic must focus on reducing propagule loads on humans, and their food, cargo, and transport vessels.

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“…At our site, the addition of a single species (Bromus tectorum) to two adjacent grass communities (Stipa and Hilaria-dominated) had a large effect on soil biota, but the effect was vastly different in the two communities: Bromus enhanced soil biotic richness in the Hilaria community while depressing it in the Stipa community . Gremmen et al (1998) also saw that when Agrostis stolonifera entered into a shrub community on Marion Island, numbers of some soil groups were enhanced, whereas abundance in other groups were depressed.…”

Section: The Bigger Picturementioning

confidence: 92%

Exotic Annual Grasses in Western Rangelands: Predicting Resistance and Resilience of Native Ecosystems to Invasion (Draft)

Belnap¹,

Evans²,

Phillips³

et al. 2004

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Public reporting burden for the collection of information is estimated to average 1 hour per response, including the time for reviewing instructions, searching existing data sources, gathering and maintaining the data needed, and completing and reviewing the collection of information. Send comments regarding this burden estimate or any other aspect of this collection of information, including suggestions for reducing this burden, to Washington Headquarters Services, Directorate for Information Operations and Reports, 1215 Jefferson Davis Highway, Suite 1204, Arlington VA 22202-4302. Respondents should be aware that notwithstanding any other provision of law, no person shall be subject to a penalty for failing to comply with a collection of information if it does not display a currently valid OMB control number. REPORT DATE APR 20042. REPORT TYPE CS 11445e. TASK NUMBER 5f. WORK UNIT NUMBER PERFORMING ORGANIZATION NAME(S) AND ADDRESS(ES) USGS/Canyonlands Field Station 2290 South West Resource Boulevard Moab, UT 845328. PERFORMING ORGANIZATION REPORT NUMBER SPONSORING/MONITORING AGENCY NAME(S) AND ADDRESS(ES)Strategic SERDP SPONSOR/MONITOR'S REPORT NUMBER(S) DISTRIBUTION/AVAILABILITY STATEMENT Approved for public release, distribution unlimited SUPPLEMENTARY NOTESThe original document contains color images. ABSTRACTBromus tectorum (hereafter referred to as Bromus) is a non-native annual grass from the Mediterranean region that arrived in the United States in the late 19th century and soon spread throughout the western states. Bromus now dominates millions of hectares of low and midelevation landscapes. Where this occurs, native plant and animal diversity is reduced and sometimes extirpated, fire frequencies are increased, community productivity is decreased, and soil biota and nutrient cycles are altered. This has led to a many research efforts to understand the impact of Bromus on native ecosystems and to identify ways to prevent invasion and/or to restore invaded landscapes. We would also like to gratefully acknowledge the SERDP program that provided the funding for this prodigious effort and the ever-cheerful SERDP staff, including Brenda Batch, Matie Desjardin, Jeffrey Marqusee, Veronica Rice, and Brad Smith. We would especially like to thank Bob Holst, who was always immensely helpful and supportive, and Susan Walsh who saved us from innumerable web-based calamities. 1 Executive SummaryBromus tectorum (hereafter referred to as Bromus) is a non-native annual grass from the Mediterranean region that arrived in the United States in the late 19 th century and soon spread throughout the western states. Bromus now dominates millions of hectares of low and midelevation landscapes. Where this occurs, native plant and animal diversity is reduced and sometimes extirpated, fire frequencies are increased, community productivity is decreased, and soil biota and nutrient cycles are altered. This has led to a many research efforts to understand the impact of Bromus on native ecosystems and to identify ways to prevent inva...

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Impact of the introduced grass Agrostis stolonifera on vegetation and soil fauna communities at Marion Island, sub-Antarctic

Cited by 84 publications

References 15 publications

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

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

Biological invasions in the Antarctic: extent, impacts and implications

Exotic Annual Grasses in Western Rangelands: Predicting Resistance and Resilience of Native Ecosystems to Invasion (Draft)

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