10.5061/DRYAD.547D7WM4J
Curtis, K. Alexandra
0000-0001-7284-944X
Southwest Fisheries Science Center
Falcone, Erin A.
Marine Ecology and Telemetry Research
Schorr, Gregory S.
Marine Ecology and Telemetry Research
Moore, Jeffrey E.
Southwest Fisheries Science Center
Moretti, David J.
Naval Undersea Warfare Center
Barlow, Jay
Southwest Fisheries Science Center
Keene, Erin
Marine Ecology and Telemetry Research
Data from: Abundance, survival, and annual rate of change in Cuvier's
beaked whales (Ziphius cavirostris) on a Navy sonar range
Dryad
dataset
2020
Cuvier's beaked whale
Sonar
inference error
Bayesian mark-recapture
photo-identification
United States Department of the Navy
https://ror.org/03ar0mv07
N0001415IP00088
US Navy Living Marine Resources Program*
US Navy N45 Program*
US Navy Pacific Fleet*
2020-09-17T00:00:00Z
2020-09-17T00:00:00Z
en
https://doi.org/10.1111/mms.12747
33982397 bytes
15
CC0 1.0 Universal (CC0 1.0) Public Domain Dedication
Bayesian mark-recapture estimates of survival, abundance, and trend are
reported for Cuvier’s beaked whales (Ziphius cavirostris) using a Navy
training range off southern California. The deep-diving beaked whale
family is exceptionally vulnerable to mid-frequency active sonar (MFAS),
which has been implicated in mass strandings and altered foraging
behavior. Extremely low sighting probabilities impede studies of
population-level impacts of MFAS on beaked whales. The San Nicolas Basin
hosts a Navy training range subject to frequent MFAS use and attracts high
densities of Z. cavirostris. An eleven-year (2007–2018)
photo-identification program leveraged automated acoustic detection and
location capabilities on the range’s 1,800-km2 hydrophone array to enhance
capture probability. Estimated population parameters for Z. cavirostris
using the range included mean (90% credibility intervals) apparent annual
survival of 0.950 (0.899–0.986), the annual number of individuals as 121
(71–219), and the annual rate of change of -0.8% (-5.6 – 4.1%).
Simulations show the probability of detecting abundance changes is
currently low, but can be greatly improved through continued monitoring
and increased effort. Complementary data collection on habitat use and
demographic rates in San Nicolas and surrounding basins is also essential
to relating the direct effects of MFAS use to changes in vital rates and
broader population outcomes.
Data_key.docx defines data fields for XLSX file TXT files KML file
contains geocoordinates of the study area and is used in R scriptsfor data
selection and plotting.R and BUG files are used for processing, analysis,
and plotting.