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Biology 2012, 1(3), 880-894; doi:10.3390/biology1030880

Climate Predictions Accelerate Decline for Threatened Macrozamia Cycads from Queensland, Australia

Queensland Herbarium, Department of Science, Information Technology, Innovation and the Arts, Brisbane Botanic Gardens, Mt Coot-tha Rd, Toowong 4066, Australia
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Received: 3 October 2012 / Revised: 26 November 2012 / Accepted: 7 December 2012 / Published: 14 December 2012
(This article belongs to the Special Issue Biological Implications of Climate Change)
View Full-Text   |   Download PDF [671 KB, uploaded 14 December 2012]   |  

Abstract

Changes in the potential habitat of five allopatric species of threatened Macrozamia cycads under scenarios of increased ambient temperature were examined. A lack of seed dispersal, poor recruitment, low seedling survival, obligate pollinator mutualisms and continued habitat loss have led to extant populations being largely restricted to refugia. Models predict that the area of suitable habitat will further contract and move upslope, resulting in a reduced incidence within protected areas with increasing annual mean temperature. Areas of potential habitat for all five species are also predicted to become increasingly isolated from one another, further reducing the exchange between metapopulations and subpopulations, exacerbating existing threatening processes. View Full-Text
Keywords: climate change; conservation planning; cycads; distribution; Macrozamia; Maxent; Queensland, Australia; threatened species climate change; conservation planning; cycads; distribution; Macrozamia; Maxent; Queensland, Australia; threatened species
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This is an open access article distributed under the Creative Commons Attribution License (CC BY 3.0).

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MDPI and ACS Style

Laidlaw, M.J.; Forster, P.I. Climate Predictions Accelerate Decline for Threatened Macrozamia Cycads from Queensland, Australia. Biology 2012, 1, 880-894.

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