[MARMAM] New publication: Environmental influences on breeding biology and pup production in Australian fur seals

Cassie Speakman cnspe1 at gmail.com
Wed Apr 13 00:43:43 PDT 2022

Dear colleagues,

My co-authors and I are pleased to announce the Open Access publication of
the following article in Royal Society Open Science:
"Environmental influences on breeding biology and pup production in
Australian fur seals"

The article can be found here:

Knowledge of factors affecting a species' breeding biology is crucial to
understanding how environmental variability impacts population trajectories
and enables predictions on how species may respond to global change. The
Australian fur seal (Arctocephalus pusillus doriferus, AUFS) represents the
largest marine predator biomass in southeastern Australia, an oceanic
region experiencing rapid warming that will impact the abundance and
distribution of prey. The present study (1997–2020) investigated breeding
phenology and pup production in AUFS on Kanowna Island, northern Bass
Strait. The pupping period varied by 11 days and the median pupping date by
8 days and were negatively correlated to 1- and 2-year lagged winter zonal
winds, respectively, within Bass Strait. While there was no temporal trend
over the study period, annual pup production (1386–2574 pups) was
negatively correlated to 1-year lagged summer zonal winds in the Bonney
Upwelling region and positively correlated to the current-year Southern
Oscillation Index (SOI). In addition, a fecundity index (ratio of new-born
pups to adult females at the median pupping date) was positively correlated
with current-year Southern Annular Mode (SAM) conditions. Periods of
positive SOI and positive SAM conditions are forecast to increase in coming
decades, suggesting advantageous conditions for the Kanowna Island AUFS

Feel free to contact Hanna Geeson (geesonh at deakin.edu.au) with any

Best wishes,
Cassie Speakman

*PhD candidate*
School of Life & Environmental Sciences, Deakin University, Burwood VIC
M: +61 477190437
E: cspeakman at deakin.edu / cnspe1 at gmail.com
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