Behavioural drivers of the ecological roles and importance of marine mammals

JJ Kiszka, MR Heithaus, AJ Wirsing - Marine Ecology Progress Series, 2015 - int-res.com
Marine mammals feed at a variety of trophic levels, occur from freshwater to open-ocean
ecosystems and are found across virtually all latitudes. Due to their high historical, and …

Seasonal and sex-related variation in the activity patterns of common seals (Phoca vitulina)

PM Thompson, MA Fedak, BJ McConnell… - Journal of Applied …, 1989 - JSTOR
(1) Radio-telemetry was used to study common seal activity patterns around Orkney, and to
assess the degree of individual, seasonal and sex-related variation in haul-out behaviour in …

MONITORING THE TREND OF HARBOR SEALS IN PRINCE WILLIAM SOUND, ALASKA, AFTER THE EXXON VALDEZ OIL SPILL

KJ Frost, LF Lowry, JM Ver Hoef - Marine Mammal Science, 1999 - Wiley Online Library
We used aerial counts to monitor the trend in numbers of harbor seals, Phoca vitulina
richardsi, in Prince William Sound, Alaska, following the 1989 Exxon Valdez oil spill …

Age‐ and sex‐specific behaviour in harbour seals Phoca vitulina leads to biased estimates of vital population parameters

T Härkönen, KC Hårding… - Journal of Applied …, 1999 - Wiley Online Library
Modelling of the population dynamics of seals require data on an array of vital parameters
(fecundity, mortality, age structure, migrations, population growth rate). The most common …

Haul-Out Behavior of Harbor Seals (Phoca vitulina) in Hood Canal, Washington

JM London, JM Ver Hoef, SJ Jeffries, MM Lance… - PLoS …, 2012 - journals.plos.org
The goal of this study was to model haul-out behavior of harbor seals (Phoca vitulina) in the
Hood Canal region of Washington State with respect to changes in physiological …

The abundance of harbor seals in the Gulf of Alaska

PL Boveng, JL Bengtson, DE Withrow… - Marine Mammal …, 2003 - Wiley Online Library
The abundance of harbor seals (Phoca vitulina richardii) has declined in recent decades at
several Alaska locations. The causes of these declines are unknown, but there is concern …

Estimating harbour seal abundance and status in an estuarine habitat in north-east Scotland

PM Thompson, DJ Tollit, D Wood, HM Corpe… - Journal of Applied …, 1997 - JSTOR
1. Harbour seals are the most widespread of pinniped species, coming ashore onto a variety
of different habitats to rest, moult and breed. Estimates of their abundance and status rely on …

Harbour seal movements and haul-out patterns: implications for monitoring and management

L Cunningham, JM Baxter, IL Boyd… - Aquatic …, 2009 - ui.adsabs.harvard.edu
Compliance with conservation legislation requires knowledge on the behaviour, abundance
and distribution of protected species. Seal life history is characterized by a combination of …

THE DISTRIBUTION, ABUNDANCE AND SELECTED PREY OF THE HARBOR SEAL, PHOCA VITULINA CONCOLOR, IN SOUTHERN NEW ENGLAND

PM Payne, LA Selzer - Marine Mammal Science, 1989 - Wiley Online Library
The seasonal distribution and abundance of harbor seals occurring south of Maine were
documented by counting the number of seals at traditional haulout locations. The average …

The diel hauling‐out cycle of harbour seals in an open marine environment: Correlates and constraints

P Watts - Journal of Zoology, 1996 - Wiley Online Library
A colony of harbour seals in the Pacific north‐west was monitored over two years,
concurrent with a variety of environmental variables. Regression models described diel …