Relevant bibliographies by topics / Rabbits Macquarie Island

Academic literature on the topic 'Rabbits Macquarie Island'

Author: Grafiati
Published: 10 December 2022
Last updated: 29 January 2023

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Journal articles on the topic "Rabbits Macquarie Island"

1

Copson, Geof, and Jennie Whinam. "Response of Vegetation on Subantarctic Macquarie Island to Reduced Rabbit Grazing." Australian Journal of Botany 46, no. 1 (1998): 15. http://dx.doi.org/10.1071/bt96123.

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The responses of vascular plant species to a reduction in grazing pressure were monitored as part of a rabbit-control program on Macquarie Island. The initial response of the vegetation was more luxuriant growth with changes in abundance recorded after 2–3 years. After 8–10 years the relative abundance of several species had changed while species not previously recorded had appeared on study sites and others had disappeared. Of the 32 species recorded on study sites, 11 species (Agrostis magellanica, Deschampsia chapmanii, Festuca contracta, Juncus scheuchzerioides, Luzula crinita, Pleurophyllum hookeri, Poa annua, P. foliosa, Stilbocarpa polaris and Uncinia spp. (two species)) were found to form the major portion of the rabbits’ diet while another four species (Acaena magellanica, Cerastium fontanum, Isolepis aucklandica, Polystichum vestitum) were moderately grazed. The other species were either rarely grazed or occurred too infrequently to assess. Of the 25 species that were recorded over 30 times, 17 were considered to have benefited from the introduction of rabbits.
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2

Cooke, Brian, Keith Springer, Lorenzo Capucci, and Greg Mutze. "Rabbit haemorrhagic disease: Macquarie Island rabbit eradication adds to knowledge on both pest control and epidemiology." Wildlife Research 44, no. 2 (2017): 93. http://dx.doi.org/10.1071/wr16221.

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Rabbit haemorrhagic disease virus (RHDV), introduced into in Australia and New Zealand as a biological-control agent for wild rabbits, is least efficacious in cool humid areas where a non-pathogenic calicivirus (RCV-A1) also circulates. Heavy rabbit mortality following release of RHDV on cold sub-Antarctic Macquarie Island, where RCV-A1 was apparently absent, not only complemented the planned rabbit eradication operations, especially by reducing secondary poisoning of sea-birds from aerial baiting, but also ruled out cool or humid climate as a major limiting factor of disease spread. In turn, this has advanced the idea that RCV-A1 antibodies inhibit RHDV spread as well as reducing disease severity and mortality.
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3

Marchant, R., B. J. Kefford, J. Wasley, C. K. King, J. Doube, and D. Nugegoda. "Response of stream invertebrate communities to vegetation damage from overgrazing by exotic rabbits on subantarctic Macquarie Island." Marine and Freshwater Research 62, no. 4 (2011): 404. http://dx.doi.org/10.1071/mf10317.

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Widespread damage to vegetation on an isolated oceanic island (Macquarie Island), due to overgrazing (since 2002) by an expanding exotic rabbit population, could affect the nature of catchment runoff and result in changes to stream habitats and the composition of their invertebrate communities. To test this hypothesis, stream invertebrate communities that had been sampled originally in 1992 (at 15 sites when rabbit numbers were historically low), were re-sampled in 2008 (17 sites) and in 2010 (12 sites). The number of taxa recorded at each site was 25–36% lower in 2008 (7.4 taxa per site) and in 2010 (8.7 taxa) than in 1992 (11.6 taxa) and an abundance index showed a substantial decline across most taxa. Ordination indicated that composition at all sites changed markedly between years. The greatest compositional changes occurred at sites exposed to moderate or severe levels of vegetation damage, suggesting that stream invertebrates responded to habitat changes associated with increased grazing. An altered input of organic material into the streams as a result of vegetation damage may have been responsible. If communities of stream invertebrates on isolated islands are degraded, then composition may be altered permanently, unless refuges are available.
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4

Dowding, John E., Elaine C. Murphy, Keith Springer, Anthony J. Peacock, and Charles J. Krebs. "Cats, rabbits,Myxomavirus, and vegetation on Macquarie Island: a comment on Bergstromet��al.(2009)." Journal of Applied Ecology 46, no. 5 (October 2009): 1129–32. http://dx.doi.org/10.1111/j.1365-2664.2009.01690.x.

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5

Saunders, K. M., J. J. Harrison, D. A. Hodgson, R. de Jong, F. Mauchle, and A. McMinn. "Ecosystem impacts of feral rabbits on World Heritage sub-Antarctic Macquarie Island: A palaeoecological perspective." Anthropocene 3 (November 2013): 1–8. http://dx.doi.org/10.1016/j.ancene.2014.01.001.

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6

Scott, J. J., and J. B. Kirkpatrick. "Rabbits, landslips and vegetation change on the coastal slopes of subantarctic Macquarie Island, 1980–2007: implications for management." Polar Biology 31, no. 4 (October 6, 2007): 409–19. http://dx.doi.org/10.1007/s00300-007-0367-y.

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7

Sindel, Brian M., Paul E. Kristiansen, Susan C. Wilson, Justine D. Shaw, and Laura K. Williams. "Managing invasive plants on sub-Antarctic Macquarie Island." Rangeland Journal 39, no. 6 (2017): 537. http://dx.doi.org/10.1071/rj17073.

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The Antarctic region is one of the most inhospitable frontiers on earth for weed invasion. On Australia’s world heritage sub-Antarctic Macquarie Island only three species of invasive weeds are well established (Poa annua L., Stellaria media (L.) Vill. and Cerastium fontanum Baumg.), although isolated occurrences of other species have been found and removed. These weed species are believed to have initially been introduced through human activity, a threat which is likely to increase, although strict biosecurity is in place. All three weeds are palatable and may have been suppressed to some extent by pest herbivore (rabbit) grazing. Given the high conservation value of Macquarie Island and threats to ecosystem structure and function from weed proliferation following rabbit eradication, well targeted invasive plant control management strategies are vital. We propose that a successful restoration program for Australia’s most southerly rangeland ecosystem should integrate both control of non-native plants as well as non-native herbivores. Of the non-native plants, S. media may most easily be managed, if not eradicated, because of its more limited distribution. Little, however, is known about the soil seed bank or population dynamics after rabbit eradication, nor the effect of herbicides and non-chemical control methods in cold conditions. A current research project on this non-grass species is helping to fill these knowledge gaps, complementing and building on data collected in an earlier project on the ecology and control of the more widespread invasive grass, P. annua. With an interest in off-target herbicide impacts, our work also includes a study of the movement and fate of herbicides in the cold climate Macquarie Island soils. Research in such a remote, cold, wet and windy place presents a range of logistical challenges. Nevertheless, outcomes are informing the development of effective, low-impact control or eradication options for sub-Antarctic weeds.
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8

Curtain, C. C., D. H. Wood, and W. R. Sobey. "The distribution of immunoglobulin allotypes in rabbit populations in Australia and on Macquarie Island." Animal Blood Groups and Biochemical Genetics 4, no. 2 (April 24, 2009): 101–9. http://dx.doi.org/10.1111/j.1365-2052.1973.tb01279.x.

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9

Whinam, Jennie, Nicholas Fitzgerald, Micah Visoiu, and Geof Copson. "Thirty years of vegetation dynamics in response to a fluctuating rabbit population on sub-Antarctic Macquarie Island." Ecological Management & Restoration 15, no. 1 (January 2014): 41–51. http://dx.doi.org/10.1111/emr.12076.

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10

Whinam, J., J. A. Abdul-Rahman, M. Visoiu, M. B. F. di Folco, and J. B. Kirkpatrick. "Spatial and temporal variation in damage and dieback in a threatened subantarctic cushion species." Australian Journal of Botany 62, no. 1 (2014): 10. http://dx.doi.org/10.1071/bt13207.

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A decline was observed in the subantarctic Macquarie Island endemic cushion, Azorella macquariensis, during the summer of 2008–2009, resulting in the listing of the species as critically endangered in 2010. Photographs of A. macquariensis in the period 2009–2013 were used to (1) identify types of damage, (2) determine the likely causes of three distinct types of damage, (3) establish whether dieback was spreading from affected to unaffected sites and (4) find out whether dieback was associated with the expansion of Agrostis magellanica. Grey damage occurred on the most wind-exposed parts of cushions and on the most wind-exposed sites. Speck damage occurred in the opposite situations and was consistent in its location, attributes and timing with rabbit grazing. Yellow dieback was sporadic in its occurrence. Its symptoms were consistent with those of a pathogen. Yellow damage expanded between spring 2009 and autumn 2010, with neither grey nor speck damage increasing. Yellow damage was associated with a marked decline in live cushion cover in plots between 2010 and 2013. The cushion was not eliminated from any plots, despite increased cover of A. magellanica in plots with dead cushions. Only one site not affected by yellow damage in 2010 had become affected by 2013. Given these results, and given that yellow damage has been observed in the past, 2008–2010 may have been an infrequent extreme outbreak of a pathogen and/or a response of a pathogen to ongoing climatic change.
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