Journal article
Feeling the cold in a warming climate: differential effects of low temperatures on co-occurring eucalypts
Australian Journal of Botany, Vol.64(5), pp.456-466
2016
Abstract
Climate change is altering extreme temperature events, and is expected to drive changes in species composition as a result. To assess the potential for compositional shifts from low-temperature events, the effects of repeated events in 2010 and 2012 on three co-occurring eucalypts were determined in south-Western Australia. To examine the climatic conditions that led to tree damage, and the long-term pattern of low-temperature events, temperatures were monitored on affected sites, and modelled from climate-station data. The three species varied considerably in their susceptibility to low temperatures. Corymbia calophylla K.D.Hill & L.A.S.Johnson was most affected (crown-damage index (CDI)≤47), followed by Eucalyptus marginata Sm. (CDI≤17) and E. wandoo Blakely (CDI≤3), which was comparatively tolerant. The temperatures leading to damage in 2010 and 2012 were -3.4°C and -2.1°C respectively. The frequency of low-temperature events (days below 0°C) have been steadily increasing in the study area since the mid-1990s. Because minimal tree mortality was observed, species composition is unlikely to change as a result of low temperatures in the short term. However, continued dieback from repeated events may disrupt regenerative processes, and cause long-term compositional shifts.
Details
- Title
- Feeling the cold in a warming climate: differential effects of low temperatures on co-occurring eucalypts
- Authors/Creators
- G. Matusick (Author/Creator)K.X. Ruthrof (Author/Creator)J. Pitman (Author/Creator)G.E.St.J. Hardy (Author/Creator)
- Publication Details
- Australian Journal of Botany, Vol.64(5), pp.456-466
- Publisher
- CSIRO Publishing
- Identifiers
- 991005543560907891
- Copyright
- © CSIRO 2016.
- Murdoch Affiliation
- School of Veterinary and Life Sciences
- Language
- English
- Resource Type
- Journal article
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- 3 Agriculture, Environment & Ecology
- 3.40 Forestry
- 3.40.55 Forest Dynamics
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