Plant, invertebrate and pathogen interactions in Kosciuszko National Park

McDougall, Keith L. and Wright, Genevieve T. and Burgess, Treena I. and Farrow, Roger and Khaliq, Ihsan and Laurence, Mathew H. and Wallenius, Thomas and Liew, Edward C. Y. (2018) Plant, invertebrate and pathogen interactions in Kosciuszko National Park. Proceedings of the Linnean Society of New South Wales, 140. pp. 295-312. ISSN 0370-047X


Abstract

Kosciuszko National Park is the largest protected area in NSW and the only reserve in the State containing alpine vegetation. Diseases and pests of plants in the park are poorly known and, until recently, were thought to be benign and rare because of the cold climate. Surveys after the 2003 fire that burnt about 70% of the park detected dieback in both unburnt and regenerating burnt shrubs and trees. Since then, 36 species of Phytophthora have been identified in the park. Some perhaps do not persist but at least two (P. gregata and P. cambivora) are affecting the survival of two native shrub species. The fungus Armillaria luteobubalina also has been isolated from dying shrubs. Many insects and a mite have been identified on shrubs and trees in poor health. Although some of the invertebrate and disease syndromes are likely to be cyclic and natural, their interaction with climate change and invasive species may interrupt such cycles. One threatened species, Eucalyptus saxatilis, is in severe decline at some sites because of insect herbivory perhaps in conjunction with unusual climatic events. Climate change is also likely to allow the invasion or expansion of non-native and native pathogens and invertebrates with unpredictable consequences


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Item Type: Article (Commonwealth Reporting Category C)
Refereed: Yes
Item Status: Live Archive
Additional Information: Published version freely available at publisher's website: see URL.
Faculty/School / Institute/Centre: Current - Institute for Life Sciences and the Environment - Centre for Crop Health (24 Mar 2014 -)
Faculty/School / Institute/Centre: Current - Institute for Life Sciences and the Environment - Centre for Crop Health (24 Mar 2014 -)
Date Deposited: 01 Jun 2020 07:35
Last Modified: 03 Jun 2020 05:00
Uncontrolled Keywords: Armillaria, climate change, dieback, mites, moth larvae, Phytophthora
Fields of Research : 05 Environmental Sciences > 0501 Ecological Applications > 050103 Invasive Species Ecology
05 Environmental Sciences > 0502 Environmental Science and Management > 050202 Conservation and Biodiversity
05 Environmental Sciences > 0501 Ecological Applications > 050101 Ecological Impacts of Climate Change
Socio-Economic Objective: D Environment > 96 Environment > 9604 Control of Pests, Diseases and Exotic Species > 960404 Control of Animal Pests, Diseases and Exotic Species in Forest and Woodlands Environments
URI: http://eprints.usq.edu.au/id/eprint/38703

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