[MARMAM] New paper: Acoustic ecology of Antarctic pinnipeds

Ilse van Opzeeland Ilse.van.Opzeeland at awi.de
Tue Sep 14 02:36:58 PDT 2010


Dear Colleagues,
We would like to inform you of a new publication, available online (open
access) at Marine Ecology Progress Series (see link below):

Van Opzeeland I, Van Parijs S, Bornemann H, Frickenhaus S, Kindermann L,
Klinck H, Plötz J, Boebel O (2010)
Acoustic ecology of Antarctic pinnipeds
MEPS 414:267-291
http://www.int-res.com/articles/meps_oa/m414p267.pdf

Abstract:
In aquatic-mating pinnipeds, acoustic communication plays an important role
in male competition and mate attraction. Vocal repertoire size and
composition during the breeding season varies between species and is
presumed to be a product of interspecific differences in sexual selection.
In this study, we examine seasonal and diel patterns in acoustic repertoire
size, composition and call activity of 4 Antarctic pinniped species: Weddell
seal Leptonychotes weddellii, leopard seal Hydrurga leptonyx, Ross seal
Ommatophoca rossii and crabeater seal Lobodon carcinophaga. An 11 mo (Jan
2006 – Jan 2007, no recordings Jul and Nov 2006) near-continuous dataset was
collected from the Perennial Acoustic Observatory in the Antarctic Ocean
(PALAOA) located on the Ekström Iceshelf. The Weddell seal vocal repertoire
consisted of 14 call types. Calls were present throughout the year except in
February (11 mo), while repertoire composition varied considerably between
months. The leopard seal vocal repertoire consisted of 7 call types. Calls
were present between October and January (4 mo). All call types were used in
a uniform manner throughout the entire call period. The Ross seal vocal
repertoire consisted of 5 call types. Ross seal vocalizations were present
from December until February (3 mo). Repertoire composition varied little
between months. Crabeater seals produced one vocalization type, present from
August to December (5 mo). Vocalizations in these species are likely
produced in a breeding context. Inter-specific differences in behavioral
ecology and interactions with abiotic and biotic environmental factors shape
vocal behavior resulting in each species filling its own acoustic ecological
niche.

Best Regards,

I.C. Van Opzeeland 
Alfred Wegener Institute 
for Polar and Marine Research
Ocean Acoustics Lab
Am Alten Hafen 26
27568 Bremerhaven
GERMANY
 
Phone: +49-471-4831-1169
Fax:     +49-471-4831-1149
Web:    www.awi.de/acoustics
 
 







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