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The status and conservation of shorebird habitat in South-east Tasmania

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Parr, LB (1988) The status and conservation of shorebird habitat in South-east Tasmania. Coursework Master thesis, University of Tasmania.

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Abstract

Census data from 11 sites of shorebird habitat in South-east Tasmania from the 1960s,
1970s and 1980s were examined qualitatively and by using analysis of variance techniques.
The aim was to establish whether the numbers of shorebirds using these sites as feeding,
breeding and roosting habitat had changed over that time period, and to establish whether a
relationship existed between observed changes in numbers and habitat alteration and loss at
the sites.
Of the eight sites monitored intensively during both the 1960s and 1980s sampling
periods, the abundance of shorebirds decreased at three sites (Lauderdale, Orielton Lagoon and
Sorell), no change in abundance was recorded at two sites (Clear Lagoon and Barilla Bay), and
three sites (Pipeclay Lagoon, Calverts Lagoon and South Arm Neck) experienced an increase in
shorebird abundance.
At those same eight sites, the number of species present decreased at five sites
(Lauderdale, Clear Lagoon, South Arm Neck, Sorell and Barilla Bay) between the 1960s and the
1980s, no change in species richness was recorded at two sites (Pipeclay Lagoon and Orielton
Lagoon), and one site (Calverts Lagoon) experienced an increase in species numbers. No clear
trends were evident at the remaining three sites.
The reasons for the changes in shorebird numbers at the sites were (1) a shift in site
preference and the pattern of site utilization, and (2) a decline in the abundance of some species
utilizing the sites. It is highly likely that these changes were related to changes in habitat,
although a direct cause and effect relationship could not be proved. Urban pressure was
identified as the primary cause of degradation at the sites.
The over-riding management priority was identified as the conservation of the major
sites of feeding, breeding and roosting habitat for shorebirds. Secondary priorities included
the development of management plans and appropriate levels of management for each site,
establishment of wetland conservation policies by the state and local governments,
community education of wetland values, involvement of the Bird Observers' Association of
Tasmania in an advisory capacity in planning for wetland areas, and the undertaking of
ecological research at the sites. The protective reservation of shorebird habitat at Pittwater
and South Arm Neck is urgently required.

Item Type: Thesis (Coursework Master)
Keywords: Shore birds
Copyright Holders: The Author
Copyright Information:

Copyright 1988 the author - The University is continuing to endeavour to trace the copyright owner(s) and in the meantime this item has been reproduced here in good faith. We would be pleased to hear from the copyright owner(s).

Additional Information:

Thesis (M.Env.St.)--University of Tasmania, 1990. Bibliography: p. 164-176

Date Deposited: 03 Feb 2015 03:09
Last Modified: 24 Aug 2016 01:37
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