scholarly journals Predation and prey-caching of Eastern Water Skinks Eulamprus quoyii by nesting Nankeen Kestrels Falco cenchroides in eastern New South Wales

2021 ◽  
Vol 38 ◽  
pp. 193-200
Author(s):  
Kimberley Pryor
Keyword(s):  
Mus Musculus ◽  
Prey Item ◽  
Prey Species ◽  
New South ◽  
New South Wales ◽  
South Wales ◽  
Nestling Period ◽  
Malurus Cyaneus ◽  
Prey Items ◽  
Individual Prey

The breeding diet of a pair of Nankeen Kestrels Falco cenchroides nesting in Beresfield, eastern New South Wales, in 2020 was investigated. By individual prey species, the diet comprised 61.3% reptiles (including two prey species not previously recorded in the Nankeen Kestrel diet—Eastern Water Skink Eulamprus quoyii and most likely Southern Rainbow Skink Carlia tetradactyla), 9.7% birds (including a new prey species—Superb Fairy-wren Malurus cyaneus), 6.4% invertebrates (two crickets: Grylloidea), 3.2% mammals (one House Mouse Mus musculus) and 19.4% unidentified prey items (percentages by number). During 31.5 h of observations, the male delivered 22/31 prey items (71%) and the female delivered 9/31 prey items (29%) to the nest tree. The average delivery rate over the entire nestling period was one prey item per hour. Prey-caching, whereby the female stored lizards in the fork of a tree and later retrieved them and fed them tothe single nestling, was observed. Further studies are needed to obtain well-documented accounts of prey-caching by Australian falcons.

The breeding season diet of wedge-tailed eagles (Aquila audax) in western New South Wales and the influence of Rabbit Calicivirus Disease

2002 ◽  
Vol 29 (2) ◽  
pp. 175 ◽  
Author(s):  
A. Sharp ◽  
L. Gibson ◽  
M. Norton ◽  
B. Ryan ◽  
A. Marks ◽  
...  
Keyword(s):  
Arid Regions ◽  
Prey Species ◽  
New South ◽  
Time Since Death ◽  
Functional Responses ◽  
Prey Switching ◽  
South Wales ◽  
Breeding Seasons ◽  
Prey Items ◽  
Individual Prey

A total of 2071 individual prey items were identified from 34 active and 55 inactive wedge-tailed eagle nests following the 1995, 1996 and 1997 breeding seasons. Overall, the eagle's diet was comparable to that reported in other studies within semi-arid regions, with rabbits, reptiles and macropods accounting for 47.8, 22.6 and 13.7% of prey items, respectively. In spring 1996 rabbit calicivirus moved into the study area, resulting in a 44-78% reduction in rabbit abundance (Sharp et al. 2001). An index was developed to enable the time since death for individual prey items to be approximated and a historical perspective of the eagle's diet to be constructed. Rabbits constituted 56-69% of dietary items collected during the pre-rabbit calicivirus disease (RCD) samples, but declined to 31% and 16% in the two post-RCD samples. A reciprocal trend was observed for the proportion of reptiles in the diet, which increased from 8-21% of pre-RCD dietary items to 49-54% after the advent of RCD. Similarly, the proportion of avian prey items was observed to increase in the post-RCD samples. These data suggested that prey switching may have occurred following the RCD epizootic. However, a lack of data on the relative abundances of reptiles and birds prevented an understanding of the eagle's functional responses to be developed and definitive conclusions to be drawn. Nevertheless, the eagles were observed to modify their diet to the change in rabbit densities by consuming larger quantities of native prey species.

Feeding ecology and population dynamics of the feral cat (Felis catus) in relation to the availability of prey in central-eastern New South Wales

1999 ◽  
Vol 26 (5) ◽  
pp. 593 ◽  
Author(s):  
Robyn Molsher ◽  
Alan Newsome ◽  
Chris Dickman
Keyword(s):  
Oryctolagus Cuniculus ◽  
Prey Species ◽  
New South ◽  
New South Wales ◽  
Felis Catus ◽  
House Mice ◽  
Minor Components ◽  
Feral Cat ◽  
South Wales ◽  
Central Eastern

The diet of feral cats (Felis catus) was studied at Lake Burrendong, central-eastern New South Wales, from July 1994 to June 1997. Mammals were the major prey in 499 scats that were analysed. Rabbits (Oryctolagus cuniculus) were the staple prey, while carrion was an important secondary food. Invertebrates, other mammalian prey, vegetation, birds and reptiles were generally minor components of the diet. Few significant seasonal differences in diet were found; however, invertebrates contributed less and possums more to the diet in winter and summer respectively. A significant dietary response was found to changes in rabbit abundance, but not for the other prey types. Cats continued to prey heavily on rabbits even after a 90% decline in rabbit abundance occurred, which coincided with the advent of Rabbit Calicivirus Disease (RCD). House mice (Mus domesticus) increased in importance in the diet ten months post-RCD. Although the abundance of cats was correlated with the abundance of some prey species, other factors may have influenced the observed patterns; these are discussed.

Eradication of the House Mouse (Mus musculus) from Montague Island, New South Wales, Australia

2011 ◽  
Vol 12 (2) ◽  
pp. 102-109 ◽  
Author(s):  
Frances Cory ◽  
Andrea Wilson ◽  
David Priddel ◽  
Nicholas Carlile ◽  
Nick Klomp
Keyword(s):  
House Mouse ◽  
Mus Musculus ◽  
New South ◽  
New South Wales ◽  
South Wales

scholarly journals Diet of an Eastern Grass Owl Tyto longimembris in northern New South Wales

2021 ◽  
Vol 38 ◽  
pp. 44-48
Author(s):  
Stephen Kearney ◽  
Keyword(s):  
House Mouse ◽  
Mus Musculus ◽  
National Park ◽  
New South ◽  
New South Wales ◽  
Rattus Rattus ◽  
Black Rat ◽  
South Wales

A single Eastern Grass Owl Tyto longimembris was observed in Bundjalung National Park, New South Wales, in September 2019. Pellets (n = 17) collected from its roost contained the remains of House Mouse Mus musculus, Grassland Melomys Melomys burtoni, Black Rat Rattus rattus, Swamp Rat R. lutreolus, Fawn-footed Melomys Melomys cervinipes, Common Planigale Planigale maculata, Eastern Blossom Bat Syconycteris australis and honeyeater Phylidonyris sp. The most interesting findings were the Eastern Blossom Bat (the first published record of a bat in the diet of an Eastern Grass Owl in Australia) and that one of the Grassland Melomys specimens had pink bones.

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