scholarly journals Application of a Gondwanan perspective to restore ecological integrity in the south-western Australian global biodiversity hotspot

2016 ◽  
Vol 24 (6) ◽  
pp. 805-815 ◽  
Author(s):  
Grant Wardell-Johnson ◽  
Angela Wardell-Johnson ◽  
Keith Bradby ◽  
Todd Robinson ◽  
Philip W. Bateman ◽  
...  
Keyword(s):  
Ecological Integrity ◽  
Biodiversity Hotspot ◽  
The South ◽  
Global Biodiversity ◽  
Western Australian

Phylogenetic relationships of the heath dragons (Rankinia adelaidensis and R. parviceps) from the south-western Australian biodiversity hotspot

2008 ◽  
Vol 56 (3) ◽  
pp. 159 ◽  
Author(s):  
Jane Melville ◽  
Luke P. Shoo ◽  
Paul Doughty
Keyword(s):  
Habitat Preferences ◽  
Taxonomic Revision ◽  
Biodiversity Hotspot ◽  
Phylogenetic Study ◽  
The South ◽  
Generic Level ◽  
Nuclear Introns ◽  
Eastern Australia ◽  
Morphological Differences ◽  
Western Australian

Although the south-western Australian region is recognised as a global biodiversity hotspot, there are still significant gaps in our understanding of the biodiversity of this region. We present a phylogenetic study of the heath dragons (Rankinia adelaidensis and R. parviceps) from this region, incorporating a 1612-bp section of mtDNA and two nuclear introns, Gapdh (~244 bp) and Enol (~330 bp). In addition, we present a generic-level analysis of three gene regions (mtDNA, Gapdh, BDNF), which provides clear evidence that Rankinia adelaidensis and R. parviceps are not closely related to Rankinia diemensis from eastern Australia. Instead, the heath dragons are strongly supported as forming a clade with the genus Ctenophorus. In addition, we find that there are significant levels of haplotype divergence between currently recognised subspecies of the heath dragons (R. a. adelaidensis, R. a. chapmani, R. p. parviceps, R. p. butleri). We suggest that the genetic divergences between subspecies result from geographic isolation in allopatry owing to habitat preferences, followed by drift and/or selection. On the basis of these deep divergences and consistent morphological differences between subspecies, we recommend elevating all taxa to full species, and provide a taxonomic revision of the genera Rankinia and Ctenophorus.

scholarly journals Biogeography and speciation of terrestrial fauna in the south-western Australian biodiversity hotspot

2014 ◽  
Vol 90 (3) ◽  
pp. 762-793 ◽  
Author(s):  
Michael G. Rix ◽  
Danielle L. Edwards ◽  
Margaret Byrne ◽  
Mark S. Harvey ◽  
Leo Joseph ◽  
...  
Keyword(s):  
Biodiversity Hotspot ◽  
The South ◽  
Western Australian

scholarly journals The biodiversity-wind energy-land use nexus in a global biodiversity hotspot

2021 ◽  
pp. 144471
Author(s):  
Vassiliki Kati ◽  
Christina Kassara ◽  
Zoi Vrontisi ◽  
Aristides Moustakas
Keyword(s):  
Land Use ◽  
Wind Energy ◽  
Biodiversity Hotspot ◽  
Global Biodiversity

scholarly journals Meta-analysis reveals severe pollen limitation for the flowering plants growing in East Himalaya-Hengduan Mountains region

BMC Ecology ◽  
2020 ◽  
Vol 20 (1) ◽  
Author(s):  
Xianfeng Jiang ◽  
Yanping Xie
Keyword(s):  
Confidence Interval ◽  
Pollen Limitation ◽  
Meta Analysis ◽  
Flowering Plants ◽  
Biodiversity Hotspot ◽  
Clear Relationship ◽  
Hengduan Mountains ◽  
Independent Data ◽  
The World ◽  
Global Biodiversity

Abstract Background Pollen limitation occurs widely and has an important effect on flowering plants. The East Himalaya-Hengduan Mountains region is a global biodiversity hotspot. However, to our knowledge, no study has synthetically assessed the degree of pollen limitation in this area. The present study aims to reveal the degree of pollen limitation for the flowering plants growing on East Himalaya-Hengduan Mountains and to test whether the reproductive features or the elevation is closely correlated with the degree of pollen limitation in this area. Results We complied data from 76 studies, which included 96 species and 108 independent data records. We found that the flowering plants in this area undergo severe pollen limitation [overall Hedges’ d = 2.004, with a 95% confidence interval (1.3264, 2.6743)] that is much higher than that of the flowering plants growing in many other regions around the world. The degree of pollen limitation was tested to determine the correlation with the capacity for autonomous self-reproduction and with the pollination pattern (generalized vs. specialized pollination) of plants. In addition, we found a clear relationship between elevation and the degree of pollen limitation, which indicates that plants might undergo more severe pollen limitation in relatively high places. Conclusions This paper is the first to address the severe pollen limitation of the flowering plants growing in East Himalaya-Hengduan Mountains region. Moreover, we reveal the positive correlation between elevation and the degree of pollen limitation.

Mercury pollution by gold mining in a global biodiversity hotspot, the Choco biogeographic region, Colombia

Chemosphere ◽  
2018 ◽  
Vol 193 ◽  
pp. 421-430 ◽  
Author(s):  
Yuber Palacios-Torres ◽  
Karina Caballero-Gallardo ◽  
Jesus Olivero-Verbel
Keyword(s):  
Gold Mining ◽  
Biodiversity Hotspot ◽  
Mercury Pollution ◽  
Biogeographic Region ◽  
Global Biodiversity
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