
%0 Journal Article
%A Briggs, SV 
%A Holmes, JE 
%T Bag Sizes of Waterfowl in New-South-Wales and Their Relation to Antecedent Rainfall
%J Wildlife Research
%D 1988/07/01
%V 15
%N 4
%P 459-468
%K 
%R https://doi.org/10.1071/WR9880459
%U https://www.publish.csiro.au/paper/WR9880459 
%X Bag sizes of game ducks in New South Wales between 1977 and 1984 were compared with antecedent annual rainfall in eastern Australia. Mean bag size is equivalent to 'catch-per-unit-effort', an index of population abundance. Annual rainfall is an index of habitat availability for waterfowl. Bag sizes of Pacific black duck and all game species combined were significantly (P<O.05) related to antecedent rainfall. Rates of increase (computed from annual catch-per-unit-effort) of black duck, maned duck and all species combined were significantly related to rainfall difference between the preceding 2 years. This study indicates that prior rainfall is a useful predictor of duck numbers in New South Wales. 
