Paying the extinction debt: woodland birds in the Mount Lofty Ranges, South Australia

2011 ◽  
Vol 111 (1) ◽  
pp. 59-70 ◽  
Author(s):  
Judit K. Szabo ◽  
Peter A. Vesk ◽  
Peter W. J. Baxter ◽  
Hugh P. Possingham
2009 ◽  
Vol 142 (12) ◽  
pp. 3182-3190 ◽  
Author(s):  
Hugh A. Ford ◽  
Jeffrey R. Walters ◽  
Caren B. Cooper ◽  
Stephen J.S. Debus ◽  
Veronica A.J. Doerr

2011 ◽  
Vol 17 (4) ◽  
pp. 303 ◽  
Author(s):  
Hugh A Ford

The decline and local extinction of many woodland birds across southern Australia is continuing and seems likely to continue for a long time even though broad-scale clearing has ceased in many regions. The small proportion of remaining vegetation and its fragmented and degraded nature will probably mean that a long-term extinction debt will have to be paid. For some species this will be through the process of successive extinctions of sub-populations and lack of recolonization due to poor dispersal ability, leading to ultimate extinction of the metapopulation. However, many bird species in Australia travel locally and regionally to exploit resources that vary in time and space (rich-patch nomads), and appear to be quite capable of dispersing in fragmented landscapes. Many of these too are declining and we need to understand the processes involved in their decline. Making the matrix more hospitable may reverse the declines of the poor dispersers. However, a different approach may be needed to assist the rich-patch nomads, such as re-establishing key resources. This will involve a better understanding of their natural history.


2019 ◽  
Vol 3 (1-2) ◽  
pp. 103-124
Author(s):  
Gemma Tulud Cruz

Christian missionaries played an important role in the Australian nation building that started in the nineteenth century. This essay explores the multifaceted and complex cultural encounters in the context of two aboriginal missions in Australia in the nineteenth century. More specifically, the essay explores the New Norcia mission in Western Australia in 1846-1900 and the Lutheran mission in South Australia in 1838-1853. The essay begins with an overview of the history of the two missions followed by a discussion of the key faces of the cultural encounters that occurred in the course of the missions. This is followed by theological reflections on the encounters in dialogue with contemporary theology, particularly the works of Robert Schreiter.


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