[MARMAM] New publication
ewakrzyszczyk at gmail.com
Fri Sep 22 07:38:46 PDT 2017
Dear MARMAM community:
My co-authors and I are pleased to announce the following publication
through Marine Mammal Science.
Bichell, L. M. V., Krzyszczyk, E., Patterson, E. M. and Mann, J. 2017. The
reliability of pigment pattern-based identification of wild bottlenose
dolphins. Marine Mammal Science doi:10.1111/mms.12440
Long-term studies often rely on natural markings for individual
identification across time. The primary method for identification in small
cetaceans relies on dorsal fin shape, scars, and other natural markings.
However, dorsal fin markings can vary substantially over time and the
dorsal fin can become unrecognizable after an encounter with a boat or
shark. Although dorsal fins have the advantage in that they always break
the water surface when the cetacean breathes, other physical features, such
as body scars and pigmentation patterns can supplement. The goal of this
study was to explore the use of dorso-lateral pigment patterns to identify
wild bottlenose dolphins. We employed photographic pigment matching tests
to determine if pigmentation patterns showed (1) longitudinal consistency
and (2) bilateral symmetry using a 30 yr photographic database of
bottlenose dolphins (*T**ursiops aduncus*). We compared experienced dolphin
researchers and inexperienced undergraduate student subjects in their
ability to accurately match images. Both experienced and inexperienced
subjects correctly matched dolphin individuals at a rate significantly
above chance, even though they only had 10 s to make the match. These
results demonstrate that pigment patterns can be used to reliably identify
individual wild bottlenose dolphins, and likely other small cetacean
species at other sites.
The article is available for free here
<http://onlinelibrary.wiley.com/doi/10.1111/mms.12440/full>. If you would
like a pdf emailed or have any questions, or just want to geek out about
this paper with me! please email myself at (ewakrzyszczyk at gmail.com).
Ewa Krzyszczyk, PhD
Post- Doctoral Fellow
Personal website <http://ewakrzyszczyk.weebly.com>
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