Now showing items 1-10 of 66
A 3D stereo camera system for precisely positioning animals in space and time
(2015-04) - Journal article,
Here, we describe a portable stereo camera system that integrates a GPS receiver, an attitude sensor and 3D stereo photogrammetry to rapidly estimate the position of multiple animals in space and time. We demonstrate the ...
Two intense decades of 19th century whaling precipitated rapid decline of right whales around New Zealand and East Australia
(2014-04-01) - Journal article,
Right whales (Eubalaena spp.) were the focus of worldwide whaling activities from the 16th to the 20th century. During the first part of the 19th century, the southern right whale (E. australis) was heavily exploited on ...
An integrated approach to historical population assessment of the great whales : case of the New Zealand southern right whale
(2016-03) - Journal article,
Accurate estimation of historical abundance provides an essential baseline for judging the recovery of the great whales. This is particularly challenging for whales hunted prior to twentieth century modern whaling, as ...
Can a gray seal (Halichoerus grypus) generalize call classes?
(2015-11) - Journal article,
Past researchers have found that gray seals (Halichoerus grypus) are capable of classifying vocal signals by call type using a trained set, but were unable to generalize to novel exemplars (Shapiro, Slater, & Janik, 2004). ...
Harbour seal (Phoca vitulina) abundance within the Firth of Tay and Eden Estuary, Scotland : recent trends and extrapolation to extinction
(2017-02-17) - Journal article,
1. Aerial surveys have detected alarming declines in counts of harbour seals in several regions across Scotland. 2. Demographic data and simple models were used to examine the recent decline in the numbers of harbour seals ...
Individual, unit and vocal clan level identity cues in sperm whale codas
(2016-01-20) - Journal article,
The ‘social complexity hypothesis’ suggests that complex social structure is a driver of diversity in animal communication systems. Sperm whales have a hierarchically structured society in which the largest affiliative ...
First direct evidence for natal wintering ground fidelity and estimate of juvenile survival in the New Zealand Southern right whale Eubalaena australis
(2016-01-11) - Journal article,
Juvenile survival and recruitment can be more sensitive to environmental, ecological and anthropogenic factors than adult survival, influencing population-level processes like recruitment and growth rate in long-lived, ...
Population scaling in 5 km x 5 km grey and harbour seal usage maps. Note to Scottish Government MMSS/002/15
(Marine Scotland, 2016-10-14) - Report,
An alternative method for correcting fluorescence quenching
(2015-01-13) - Journal article,
Under high light intensity, phytoplankton protect their photosystems from bleaching through non-photochemical quenching processes. The consequence of this is suppression of fluorescence emission, which must be corrected ...