[MARMAM] Hybridization in bottlenose dolphins - A case study of Tursiops aduncus × T. truncatus hybrids and successful backcross hybridization events

Tess Gridley - Namibian Dolphin Project nam.dolphin.project at gmail.com
Mon Oct 15 13:27:32 PDT 2018


Myself and co-authors are happy to announce the publication of the
following research in Plos One:



Hybridization in bottlenose dolphins - A case study of Tursiops aduncus ×
T. truncatus hybrids and successful backcross

hybridization events



Authors:T. Gridley, S. H. Elwen, G. Harris, D. M. Moore, A. R. Hoelzel, F.
Lampen



*Abstract: *

The bottlenose dolphin, genus *Tursiops* is one of the best studied of all
the Cetacea with a minimum of two species widely recognised. Common
bottlenose dolphins (*T. truncatus*), are the cetacean species most
frequently held in captivity and are known to hybridize with species from
at least 6 different genera. In this study, we document several
intra-generic hybridization events between *T. truncatus* and *T. aduncus*
held in captivity. We demonstrate that the F1 hybrids are fertile and can
backcross producing apparently healthy offspring, thereby showing
introgressive inter-specific hybridization within the genus. We document
that female F1 hybrids can reach sexual maturity at 4 yr and 3 mo of age,
and can become pregnant and give birth before being fully weaned. The
information presented has implications for understanding hybrid
reticulation among cetacean species and practical implications

for captive facilities housing either *Tursiops* species or hybrids
thereof.



pdfs can be downloaded from this link:



https://journals.plos.org/plosone/article/comments?id=10.1371/journal.pone.0201722




Kind Regards



Tess Gridley

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Tess Gridley PhD
Namibian Dolphin Project & Sea Search
www.namibiandolphinproject.o <http://www.namibiandolphinproject.com>rg
www.seasearch.co.za

Centre for Statistics in Ecology,
Environment and Conservation,
Department of Statistical Sciences,
University of Cape Town, South Africa

Tel: 021 788 1206
Cell: 0794292702
Skype: tess.gridley
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