Butterfly Conservation in South-Eastern Australia: Progress by Tim R. New

By Tim R. New

This survey of the advance of butterfly conservation in a big, mostly endemic and hugely threatened neighborhood fauna of Australia demonstrates how classes from somewhere else were utilized and constructed in a comparatively poorly recognized fauna, during which conservation goals diversity from unmarried subspecies to complete biotopes and groups. rules and functional programmes are mentioned, and masses hitherto scattered info is introduced jointly in a synthesis that might be of substantial curiosity to ecologists, conservation biologists, and butterfly conservation practitioners in different elements of the world.

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The small patches (fragments, remnants) of native vegetation left in urban areas include some recognised as vital reservoirs of butterflies that have disappeared from the wider landscape in the region; several cases are discussed later. More generally, the importance of urban remnants for butterfly diversity has been emphasised by surveys around Adelaide (Collier et al. 2006) and in Western Australia (Williams 2009). Following Koh and Sodhi (2004), Williams distinguished two categories of butterflies on remnants: (1) resident species or urban avoiders, resident on remnant native vegetation and restricted to natural bushland areas, and (2) non-resident species or urban adaptors which breed primarily on introduced plants and sometimes visit more natural bushland areas.

H. m. mastersi, the mainland subspecies found mostly in parts of Victoria and New South Wales occurs in wet forests and swampy areas supporting Gahnia melanocarpa, a sedge which does not occur in Tasmania. Additional searches by Neyland (1994) failed to rediscover the butterfly, and Braby (2000, who did not recognize the subspecies as distinct) considered it extinct in Tasmania. The individual might have been bred from a vagrant colonist, but McQuillan (1994) noted the possibility of an error in reporting, with Neyland later remarking that exchange of butterfly pupae with mainland collectors was considerable in the 1960s.

However, the reasons for such restrictions are usually unknown.

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