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1 February 2000 FREQUENCY OF BREEDING AND RECRUITMENT IN THE SHORT-BEAKED ECHIDNA, TACHYGLOSSUS ACULEATUS
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Abstract

We documented the breeding frequency of 25 wild female short-beaked echidnas, Tachyglossus aculeatus multiaculeatus, fate of young, and recruitment of subadults into a population over a 7-year period. Echidnas had 1 annual breeding period with courtship lasting 7–37 days. Females monitored were observed to mate only once per breeding season with 1 male. All females that mated produced a single fertile egg 23 days ± 1 SE after mating. Frequency of reproduction differed among individuals and years. Number of young hatched each season varied between 1 and 9. A total of 22 hatchlings was produced by 17 different females between 1990 and 1996. Seven young died before weaning, 8 were known to survive to weaning, and the fates of the remaining 7 were unknown. Number of new subadults found in the study site was comparable with the number of young known to have been produced each year.

Peggy D. Rismiller and Michael W. McKelvey "FREQUENCY OF BREEDING AND RECRUITMENT IN THE SHORT-BEAKED ECHIDNA, TACHYGLOSSUS ACULEATUS," Journal of Mammalogy 81(1), 1-17, (1 February 2000). https://doi.org/10.1644/1545-1542(2000)081<0001:FOBARI>2.0.CO;2
Accepted: 12 April 1999; Published: 1 February 2000
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