The value of unlogged buffers for vulnerable bird species in the jarrah forest of south-west Western Australia

2004 ◽  
pp. 774-782 ◽  
Author(s):  
Michael D. Craig
Keyword(s):  
Western Australia ◽  
Bird Species ◽  
Jarrah Forest ◽  
South West

Tree Species Preferences of Foraging Birds in Jarrah Forest in Western Australia.

1985 ◽  
Vol 12 (3) ◽  
pp. 461 ◽  
Author(s):  
I Abbott ◽  
PV Heurck
Keyword(s):  
Western Australia ◽  
Tree Species ◽  
Bird Species ◽  
Selective Logging ◽  
Jarrah Forest ◽  
Eucalyptus Marginata ◽  
Silvicultural Treatments ◽  
Species Preferences

A study of foraging by 10 bird species suggests that selective logging of large Eucalyptus marginata will only have affected Melithreptus lunatus, but that proposed silvicultural treatments, including removal of Banksia grandis, may affect several other bird species.

Changes in the status and distribution of four species of parrot in the south of Western Australia during 1970-90

1995 ◽  
Vol 2 (2) ◽  
pp. 191 ◽  
Author(s):  
Peter R. Mawson ◽  
John L. Long
Keyword(s):  
Western Australia ◽  
Bird Species ◽  
Fire Regimes ◽  
Common Species ◽  
Winter Rainfall ◽  
Mail Surveys ◽  
Dietary Preferences ◽  
Ecological Requirements ◽  
South West ◽  
The Status

Mail surveys were sent to field staff of the Agriculture Protection Board of Western Australia to assess the distribution and status of four species of parrot in the agricultural region of south-west Western Australia in 1970, 1980 and 1990. The surveys indicated that the populations of the Regent Parrot (Polytelis anthopeplus) and the Western Rosella (Platycercus icterotis) have declined in range considerably since 1970. The populations of the Red-capped Parrot (Purpureicephalus spurius) and the Port Lincoln Ringneck (Barnardius zonarius) have suffered little or not at all during the same period. Factors which appear to have contributed to the observed changes in distribution and status include clearing for agriculture, dietary preferences, physiology, habitat requirements, altered fire regimes, grazing by exotic herbivores and reduced winter rainfall. These surveys have shown that species which were formerly considered common and widespread have declined with little comment having been made of these changes. The implications of this are serious, both for these formerly common species and for rarer bird species which have similar ecological requirements. The technique of mail surveys has considerable merit for quickly assessing the status of some species of birds, but will be limited by the expertise of the respondents and the degree to which the species in question can be observed.

Effect of the fungicide phosphite on pollen fertility of perennial species of the Eucalyptus marginata forest and northern sandplains of Western Australia.

2002 ◽  
Vol 50 (6) ◽  
pp. 769 ◽  
Keyword(s):  
Western Australia ◽  
Pollen Fertility ◽  
Perennial Species ◽  
The South ◽  
Jarrah Forest ◽  
Eucalyptus Marginata ◽  
South West ◽  
Run Off

The fungicide phosphite was shown to affect pollen fertility in a range of perennial species from the south-west of Western Australia. Phosphite was applied to perennial species of the jarrah (Eucalyptus marginata) forest by spraying to run-off with 2.5, 5 and 10 g L–1 phosphite in either autumn or spring. Pollen fertility of Dryandra sessilis was reduced by phosphite for up to 35 and 60 weeks after spraying in spring or autumn, respectively. Trymalium ledifolium pollen fertility was reduced by phosphite 38 and 61 weeks after spraying in spring or autumn, respectively. Lasiopetalum floribundum was less affected with a reduction in pollen fertility being observed for up to 3 weeks after spraying in spring. Other perennial understorey species of the jarrah forest, Adenanthos barbiger, Boronia cymosa, Hovea elliptica and Phyllanthus calycinus were also shown to have reduced pollen fertility after treatment in autumn or spring, as did Comesperma calymega, Eremaea astrocarpa and Hibbertia hypericoides, species of the northern sandplains when sprayed in summer.

scholarly journals First in, first served: uptake of 1080 poison fox baits in south-west Western Australia

2014 ◽  
Vol 41 (2) ◽  
pp. 117 ◽  
Author(s):  
Shannon J. Dundas ◽  
Peter J. Adams ◽  
Patricia A. Fleming
Keyword(s):  
Western Australia ◽  
Activity Index ◽  
Target Species ◽  
Jarrah Forest ◽  
Remote Cameras ◽  
South West ◽  
Multiple Species ◽  
High Level ◽  
Number Of Passes

Context In Western Australia, baits containing 1080 poison are widely used to control the red fox (Vulpes vulpes) for fauna conservation. Despite long-term (15–17 years) baiting programs, bait uptake by target and non-target species is largely unknown, but affects baiting efficacy. Aims We examined bait uptake of 1080-poisoned fox baits laid according to current practice at seven riparian sites in the northern jarrah forest (of south-west Western Australia). There, intensive baiting regimes have been implemented for the protection of quokka (Setonix brachyurus) populations. Methods Over 9 months, 299 Probait® baits were monitored regularly to determine their persistence, and, at 142 of these, Reconyx HC500 remote cameras were used to identify the species taking baits. To compare bait uptake with species presence at these sites, we calculated an activity index for each species from the number of passes of animals in front of the cameras. Key results The species taking baits was identified for 100 of the baits monitored with cameras, and, because of multiple species taking baits, 130 bait take incidents were recorded in total. The fate of 40 of the baits was not discernible and two baits were not removed. In all, 99% of baits monitored by cameras were taken by non-target species and quokkas took 48% of them. The majority of baits (62% of the total 299 monitored) were taken before or on the first night of deployment, and 95% of baits had been taken within 7 days. With the exception of feral pigs, which took more baits than predicted from their activity index at these sites, baits were taken in proportion to the activity index of species. Foxes were present at four of the seven sites, but only one fox was observed taking a bait. Conclusions The high level of uptake of baits by non-target animals reflects their diversity and abundance at these sites, but also significantly reduces the availability of baits to control foxes. Implications Strategies to reduce non-target bait uptake and increase bait availability for foxes are required.

Tell-tale testicles: observations of morphological abnormalities in small, spatially restricted mainland quokka (Setonix brachyurus) populations

2019 ◽  
Vol 41 (1) ◽  
pp. 150
Author(s):  
Shannon J. Dundas
Keyword(s):  
Genetic Diversity ◽  
Western Australia ◽  
Adult Male ◽  
Camera Trap ◽  
Jarrah Forest ◽  
Morphological Abnormalities ◽  
South West ◽  
Morphological Anomalies ◽  
Future Management

The quokka (Setonix brachyurus) exists in spatially restricted populations in the northern jarrah forest in south-west Western Australia. Observations were made of adult male quokkas exhibiting morphological anomalies (cryptorchidism and micropthalmia) that may be indicative of inbreeding within these populations. Despite the presence of males with abnormalities that could potentially affect their fertility, most females captured were carrying a pouch young or feeding a joey at foot. Field researchers and managers should routinely report abnormalities seen in wild captured animals. Reduced genetic diversity of quokka populations in the northern jarrah forest may not be the key threatening process and preservation of habitat may be more important to ensure persistence of populations. Future management of this species in the northern jarrah forest should include up-to-date occurrence mapping across their range using targeted camera trap surveys and management of habitat to improve connectivity between populations.

Capping and Revegetation of Gold Residues in the Eastern Jarrah Forest in the South-West of Western Australia

2003 ◽  
Vol 2003 (1) ◽  
pp. 513-531
Author(s):  
W. McGrath ◽  
R. Bell ◽  
D. Jasper
Keyword(s):  
Western Australia ◽  
The South ◽  
Jarrah Forest ◽  
South West

Biodiversity of canopy arthropods in Jarrah forest of south-west Western Australia: review of ecological theory and conservation management

2001 ◽  
Vol 7 (2) ◽  
pp. 101 ◽  
Author(s):  
Ian Abbott ◽  
Allan Wills
Keyword(s):  
Western Australia ◽  
Forest Canopy ◽  
Spatial Scales ◽  
Habitat Diversity ◽  
Jarrah Forest ◽  
Eucalyptus Marginata ◽  
Arthropod Species ◽  
South West ◽  
Landscape Scales ◽  
Conservation Threats

A theory proposed in 1996 by Recher, Majer and Ganesh linking biodiversity of forest canopy arthropods to site productivity is analysed. Available evidence from Jarrah Eucalyptus marginata forest is inconsistent with this model. We instead propose that increased habitat variety and temperature and rainfall clines are the major environmental factors that determine canopy arthropod species richness. Biodiversity gradients for mammal, landbird and reptile species across south-west Western Australia appear to provide an appropriate model for forest insect faunas. These gradients predict that the most diverse canopy fauna should occur in the eastern Jarrah and Wandoo forests. Precautionary forest management policies and procedures currently in place to conserve the poorly collected and inadequately known arthropod fauna of tree crowns in Jarrah forest are summarized and discussed. In essence, these maximize habitat diversity at landscape scales. Major conservation threats are considered to be factors that reduce leaf area at large spatial (Phytophthora infection) and temporal scales (summer wildfire and defoliating insect outbreaks). Logging is not considered significant because it is constrained to small spatial scales (10 ha for the most extreme treatment) and long return times (2-3 decades).

scholarly journals Do woodland birds prefer to forage in healthy Eucalyptus wandoo trees?

2013 ◽  
Vol 61 (3) ◽  
pp. 187 ◽  
Author(s):  
T. L. Moore ◽  
L. E. Valentine ◽  
M. D. Craig ◽  
G. E. StJ. Hardy ◽  
P. A. Fleming
Keyword(s):  
Habitat Quality ◽  
Western Australia ◽  
Bird Species ◽  
Bird Community ◽  
Tree Decline ◽  
Woodland Birds ◽  
South West ◽  
Conservation Park ◽  
Condition Assessments ◽  
Eucalyptus Wandoo

Globally, many forests and woodlands are in decline. The marked loss of canopy foliage typical of these declines results in reduced foraging resources (e.g. nectar, pollen, and insects) and, subsequently, can reduce habitat quality for woodland birds. In south-west Western Australia, patches of Eucalyptus wandoo woodlands have shown a decline in condition since at least 2002. We investigated how changes in E. wandoo condition affect the woodland bird community. Foraging activities of three bird species were recorded for 20 sites in Dryandra State Forest and Wandoo Conservation Park either by conducting watches on focal trees (‘sitting’ method), or following individuals through the woodland (‘following’ method). Condition assessments of trees used by the birds were compared with those for trees available at the study site. Weebills (Smicrornis brevirostris; canopy insectivore) displayed preference for healthy trees (low amounts of canopy dieback), whereas rufous treecreepers (Climacteris rufa; bark-foraging insectivore) preferred trees with a higher proportion of dead branches. Yellow-plumed honeyeaters (Lichenostomus ornatus; insectivore/nectarivore) foraged in older, larger E. wandoo trees having full canopies with few signs of tree decline. Tree declines, such as that happening in E. wandoo, alter the foraging resources and habitat available to woodland birds.

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