[MARMAM] New publication on site fidelity, residency and abundance of southern Australian bottlenose dolphins

Nikki Zanardo nikki.zanardo at flinders.edu.au
Fri Jun 10 17:18:39 PDT 2016


Dear MARMAM readers,

We are happy to announce the publication of the following paper in Marine Mammal Science:

Zanardo N., Parra G.J., and Möller L.M. (2016) Site fidelity, residency and abundance of bottlenose dolphins (Tursiops sp.) in Adelaide's coastal waters, South Australia.


Abstract:
Little is known about the ecology and behavior of southern Australian bottlenose dolphins (Tursiops sp.). This hinders assessment of their conservation status and informed decision-making concerning their management. We used boat-based surveys and photo-identification data to investigate site fidelity, residency patterns, and the abundance of southern Australian bottlenose dolphins in Adelaide's coastal waters. Sighting rates and site fidelity varied amongst individuals, and agglomerative hierarchical cluster analysis led to the categorization of individuals into one of three groups: occasional visitors, seasonal residents, or year-round residents. Lagged identification rates indicated that these dolphins used the study area regularly from year to year following a model of emigration and reimmigration. Abundance estimates obtained from multisample closed capture- recapture models ranged from 95 individuals (SE ± 45.20) in winter 2013 to 239 (SE ± 54.91) in summer 2014. The varying levels of site fidelity and residency, and the relatively high number of dolphins found throughout the study area highlights the Adelaide metropolitan coast as an important habitat for bottlenose dolphins. As these dolphins also appear to spend considerable time outside the study area, future research, conservation, and management efforts on this population must take into account anthropogenic activities within Adelaide's coastal waters and their adjacencies.

The pdf of the article can be accessed at
http://onlinelibrary.wiley.com/doi/10.1111/mms.12335/abstract

Or email me directly for a pdf copy
nikki.zanardo at flinders.edu.au<mailto:nikki.zanardo at flinders.edu.au>



Kind regards,

Nikki




________________________________

Nikki Zanardo

PhD Candidate

Cetacean, Ecology, Behaviour and Evolution Lab  &

Molecular Ecology Lab

School of Biological Sciences

Flinders University

* Tel +61 8  8201 2357   | * nikki.zanardo at flinders.edu.au<mailto:nikki.zanardo at flinders.edu.au>

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My Page: http://www.flinders.edu.au/people/nikki.zanardo

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