[MARMAM] New article on "Long-term presence and habitat use of Cuvier's beaked whale (Ziphius cavirostris) in the central Tyrrhenian Sea"

Antonella Arcangeli antonella.arcangeli at isprambiente.it
Thu Jun 4 01:36:44 PDT 2015


Dear all,

we are please to inform you that our article on Long-term presence and
habitat use of Cuvier's beaked whale (Ziphius cavirostris) in the central
Tyrrhenian Sea is now available.

Abstract

Cuvier's beaked whale (Ziphius cavirostris, G. Cuvier 1823) is a poorly
known species and many international agreements have asked for a better
understanding of its biology for conservation purposes. In the present
study, systematic cetacean surveys were carried out from ferries along a
trans- regional fixed transect in the Central Tyrrhenian Sea (Civitavecchia,
Latium - Golfo Aranci, Sardinia), just outside the southeastern border of
the Pelagos Sanctuary. This research provided long-term, consistent data on
Cuvier's beaked whale during two research periods (1990-1992 and 2007-2011).
The objective of the research was to compare the presence, distribution and
habitat use of Cuvier's beaked whale between the two investigated periods.
Summer data (June-September) from the two periods were compared in terms of
frequency of sightings, group size and spatial distribution related to the
main ecogeographical features. A presence-absence model (generalized
additive modeling) was performed to predict habitat suitability in the two
study periods. The results highlight long-term site fidelity of Cuvier's
beaked whale in the Central Tyrrhenian Sea with encounter rates comparable
to the ones reported for other key areas. Separate suitability models based
on 1990s and 2000s data appeared to work for each individual time period but
differences were evident between the two periods, indicating changes in
habitat selection over time. Our findings of the study appear to expand the
definition of suitable beaked whale habitat and underline how the temporal
scale of the analysis can affect the results in habitat studies. Moreover,
this research highlights the importance of the Central Tyrrhenian Sea marine
region for Cuvier's beaked whale and the ability of continuous monitoring to
identify changes in cetacean frequency and distribution, necessary for
adaptive conservation management approaches.

 

You can find the article at the link:

http://onlinelibrary.wiley.com/doi/10.1111/maec.12272/abstract

 

or request a copy by email to: antonella.arcangeli at isprambiente.it

 

 

Hope you can find it interesting,

All the best J

 

Antonella, Ilaria, Luca, Colin

 

 

********************************

Antonella Arcangeli

ISPRA Dep. for Nature Conservation

Via Brancati 60 00144 Rome Italy

antonella.arcangeli at isprambiente.it

ph. +39.06.50074470

mob. +39.349.3272200

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