Diversity 2013, 5(1), 124-138; doi:10.3390/d5010124
Article

Post-Glacial Spatial Dynamics in a Rainforest Biodiversity Hot Spot

1,* email, 2email and 1email
Received: 21 November 2012; in revised form: 26 February 2013 / Accepted: 14 March 2013 / Published: 20 March 2013
(This article belongs to the Special Issue Tropical Forests Ecology and Climate Change)
This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
Abstract: Here we investigate the interaction between ecology and climate concerning the distribution of rainforest species differentially distributed along altitudinal gradients of eastern Australia. The potential distributions of the two species closely associated with different rainforest types were modelled to infer the potential contribution of post-glacial warming on spatial distribution and altitudinal range shift. Nothofagus moorei is an integral element of cool temperate rainforest, including cloud forests at high elevation. This distinct climatic envelope is at increased risk with future global warming. Elaeocarpus grandis on the other hand is a lowland species and typical element of subtropical rainforest occupying a climatic envelope that may shift upwards into areas currently occupied by N. moorei. Climate envelope models were used to infer range shift differences between the two species in the past (21 thousand years ago), current and future (2050) scenarios, and to provide a framework to explain observed genetic diversity/structure of both species. The models suggest continuing contraction of the highland cool temperate climatic envelope and expansion of the lowland warm subtropical envelope, with both showing a core average increase in elevation in response to post-glacial warming. Spatial and altitudinal overlap between the species climatic envelopes was at a maximum during the last glacial maximum and is predicted to be a minimum at 2050.
Keywords: Altitudinal range shift; cool temperate rainforest; Elaeocarpus grandis; MtWarning Caldera; Nothofagus moorei; post-glacial warming; warm subtropical rainforest
PDF Full-text Download PDF Full-Text [913 KB, uploaded 20 March 2013 16:59 CET]

Export to BibTeX |
EndNote


MDPI and ACS Style

Mellick, R.; Wilson, P.D.; Rossetto, M. Post-Glacial Spatial Dynamics in a Rainforest Biodiversity Hot Spot. Diversity 2013, 5, 124-138.

AMA Style

Mellick R, Wilson PD, Rossetto M. Post-Glacial Spatial Dynamics in a Rainforest Biodiversity Hot Spot. Diversity. 2013; 5(1):124-138.

Chicago/Turabian Style

Mellick, Rohan; Wilson, Peter D.; Rossetto, Maurizio. 2013. "Post-Glacial Spatial Dynamics in a Rainforest Biodiversity Hot Spot." Diversity 5, no. 1: 124-138.

Diversity EISSN 1424-2818 Published by MDPI AG, Basel, Switzerland RSS E-Mail Table of Contents Alert