Project 2.5ii.4 - Impacts of
climate change on biodiversity
Year 1 (2006/2007) to Year 3 (2008/2009) Project
Leader:
Associate Professor Steve Williams, James Cook
University
Research Organisation: JCU
Similarly to Project 2.5ii.3, this
Project will also utilise a series of well-established sites on
altitudinal and regional transects and existing forest plots to
examine responses at the ecosystem and species level to climate
change. Both projects will take advantage of existing data from ten
to twenty-five years' collections at these sites/plots by the
CSIRO, James Cook University and through the Rainforest CRC.
The overall objectives of Project 2.5ii.4 are
to:
Extinction vulnerability
Resilience, ecological responses,
plasticity, refugia (topographic, micro-habitat)
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Quantify patterns of distribution and abundance of
selected faunal groups, and existing levels of niche breadth and
ecological plasticity with respect to climatic variables, habitat
type, topography, life history traits and ecology;
-
Identify geographic areas that potentially provide
thermally-buffered habitats and measure the actual degree of
microclimatic buffering across the main environmental gradients
within identified refugia, replicated both temporally and
spatially;
-
Produce regional GIS coverages of microclimate
based on regional climatic layers calibrated by empirical
microclimate data, and to use these higher-resolution, targeted
data to improve predictive spatial models of species distributions
and impact predictions;
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Obtain empirical measurements of net primary
productivity across altitudinal/latitudinal gradients within the
Wet Tropics region to test hypotheses that increasing primary
productivity may alleviate impacts on biodiversity;
-
Provide management and policy recommendations on
adaptation to climate change impacts and provide the knowledge to
maximise the efficient utilisation of management resources across
species and geographic areas;
Physiological tolerances of threatened
species (arboreal mammals, microhylid frogs)
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Isaac, J. L., VanDerWal, J., Johnson, C. N. and Williams, S. E.
(2009) Resistance and resilience: Quantifying
relative extinction risk in a diverse assemblage of Australian
tropical rainforest vertebrates.
Diversity and Distributions 15(2): 280-288
[doi:10.1111/j.1472-4642.2008.00531.x]
Moritz, C., Hoskin, C. J., MacKenzie, J. B., Phillips, B. L.,
Tonione, M., Silva, N., VanDerWal, J., Williams, S. E. and Graham,
C. H. (2009) Identification and dynamics of a cryptic
suture zone in tropical rainforest.
Proceedings of the Royal Society B - Biological Sciences
276(1660): 1235-1244 [doi:10.1098/rspb.2008.1622]
VanDerWal, J., Shoo, L. P., Graham, C. and Williams, S. E.
(2009) Selecting pseudo-absence data fro presence-only
distribution modelling: How far should you stray from what
you know?
Ecological Modelling 220(4): 589-594
[doi:10.1016/j.ecolmodel.2008.11.010]
VanDerWal, J., Shoo, L. P. and Williams, S. E. (2009)
New approaches to understanding late Quaternary climate
fluctuations and refugial dynamics in Australian wet tropical rain
forests.
Journal of Biogeography 36(2): 291-301
[doi:10.1111/j.1365-2699.2008.01993.x]
Williams, S. E., Shoo, L. P., Isaac, J. L., Hoffman, A. A. and
Langham, G. (2008) Towards an integrated framework for
assessing the vulnerability of species to cliamte
change.
PLoS Biology
6(12): 2621-2626 [doi:10.1371/journal.pbio.0060325]
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