The Victorian naturalist . earstrapping, indicating the trapping suc-cess rate total number of animalscaught (100 traps) and the percentageeach species constituted each time. The trapping success rate is plottedagainst time of year in fig. 2. Pouched young of A. stuartii werefirst noticed on 19/9/73 and on 13/9/73. No males ofeither species of Antechinus weretrapped after the first week in Septem-ber. Trapping dates were such thatthe earliest date for the male die-offcould in fact have been the last weekof August. The sex ratio of trappedA. swainsonii changes with time (). At
The Victorian naturalist . earstrapping, indicating the trapping suc-cess rate total number of animalscaught (100 traps) and the percentageeach species constituted each time. The trapping success rate is plottedagainst time of year in fig. 2. Pouched young of A. stuartii werefirst noticed on 19/9/73 and on 13/9/73. No males ofeither species of Antechinus weretrapped after the first week in Septem-ber. Trapping dates were such thatthe earliest date for the male die-offcould in fact have been the last weekof August. The sex ratio of trappedA. swainsonii changes with time (). At the time of breeding the pro-portion of males in the trappedsamples is high (max. males/female) consistent with their increas-ed activity at this time. Then followsa decline in the sex ratio so that bySeptember the population consistedentirely of females. A preliminary analysis of homerange of lactating female A swain- Figure 1. Non-scalediagram of thestudy markedon line 1 is thesite of theM. May, 1975 85 100 80 -
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Keywords: ., bookcentury1800, bookdec, booksubjectnaturalhistory, bookyear1884
