Population-specific home ranges and migration timing of Pacific Arctic beluga whales (Delphinapterus leucas)

  title={Population-specific home ranges and migration timing of Pacific Arctic beluga whales (Delphinapterus leucas)},
  author={Donna D. W. Hauser and Kristin L. Laidre and Robert S. Suydam and Pierre Richard},
  journal={Polar Biology},
Two populations of beluga whales (Delphinapterus leucas), the Eastern Beaufort Sea (BS) and Eastern Chukchi Sea (ECS), make extensive seasonal migrations into the Pacific Arctic. However, the extent to which these populations overlap in time and space is not known. We quantified distribution and migration patterns for BS and ECS belugas using daily locations from whales tracked with satellite-linked transmitters. Home ranges and core areas in summer (July and August) and in each month (July… 

Migratory culture, population structure and stock identity in North Pacific beluga whales (Delphinapterus leucas)

It is found that the spatial proximity of winter ranges has a greater influence on the degree of both individual and genetic exchange than summer ranges, and provides compelling evidence that migratory culture and kinship helps maintain demographically discrete beluga stocks that can overlap in time and space.

Satellite telemetry reveals population specific winter ranges of beluga whales in the Bering Sea

At least five populations (stocks) of beluga whales (Delphinapterus leucas) are thought to winter in the Being Sea, including the Bristol Bay, Eastern Bering Sea (Norton Sound), Anadyr, Eastern

Regional diving behavior of Pacific Arctic beluga whales Delphinapterus leucas and possible associations with prey

Two populations of beluga whales Delphinapterus leucas in the Pacific Arctic make seasonal migrations to regions characterized by diverse bathymetry and hydrography, yet there is limited information

Distribution, Abundance, Harvest, and Status of Western Alaska Beluga Whale, Delphinapterus leucas, Stocks

The Alaska Beluga Whale Committee co-manages three western Alaska beluga whale Delphinapterus leucas, stocks with the National Marine Fisheries Service, NOAA, and has conducted studies on stock

Spring conditions and habitat use of beluga whales (Delphinapterus leucas) during arrival to the Mackenzie River Estuary

Climate change is expected to impact Arctic marine mammals, as they may be particularly vulnerable to large annual variability in the environment. Beluga whales (Delphinapterus leucas) occupy the

Habitat selection by two beluga whale populations in the Chukchi and Beaufort seas

The results indicate that sea ice variables were rarely the primary drivers of beluga summer-fall habitat selection, and associations with bathymetric features that affect prey availability seemed key to habitat selection during summer and fall.

Beluga whale distribution, migration, and behavior in a changing Pacific Arctic

Beluga whale distribution, migration, and behavior in a changing Pacific Arctic Donna Dora Westley Hauser Chair of the Supervisory Committee: Assistant Professor Kristin L. Laidre School of Aquatic

Temporal peaks in beluga whale (Delphinapterus leucas) acoustic detections in the northern Bering, northeastern Chukchi, and western Beaufort Seas: 2010–2011

Two populations of beluga whales (Delphinapterus leucas) migrate annually between their summering grounds in the eastern Chukchi and eastern Beaufort Seas, and overwintering areas in the Bering Sea.

Beluga whale summer habitat associations in the Nelson River estuary, western Hudson Bay, Canada

An early August behavioral shift in beluga distribution patterns from local estuarine use to a progressively more migratory behavior away from the estuary is estimated, contributing to an understanding of the influence of environmental variation on how and why belugas use estuaries.

Residency and movement patterns of Cuvier’s beaked whales Ziphius cavirostris off Cape Hatteras, North Carolina, USA

Cuvier’s beaked whales Ziphius cavirostris are wide-ranging, deep-diving cetaceans that are particularly sensitive to anthropogenic noise. Current stock assessments assume a single population in the



Differences in diving and movement patterns of two groups of beluga whales in a changing Arctic environment reveal discrete populations

Harvest and global climate change are among the major ongoing threats to most Arc- tic marine mammal populations. Affected by commercial hunting in the past, beluga whales Del- phinapterus leucas are

Spatiotemporal segregation among summer stocks of beluga (Delphinapterus leucas) despite nuclear gene flow: implication for the endangered belugas in eastern Hudson Bay (Canada)

Despite interbreeding, cultural conservatism of maternally transmitted migration routes seems to prevent the re-establishment of stocks in previously frequented estuaries, which supports the current use of demographic population models based on stock composition for developing behavior-based management strategies.

Satellite Tracking of Eastern Chukchi Sea Beluga Whales into the Arctic Ocean

Beluga whales (Delphinapterus leucas) congregate in nearshore waters of the eastern Chukchi Sea, especially in Kotzebue Sound and Kasegaluk Lagoon, in June and July. Where they travel after they

Beluga (Delphinapterus leucas) habitat selection in the eastern Beaufort Sea in spring, 1975–1979

In the lightest ice year analyzed, belugas showed less specificity in habitat selection as their distribution expanded and shifted shoreward to fast-ice edges, and more research is required to examine and compare possible changes in distribution since the late 1970s.

Diet of beluga whales, Delphinapterus leucas, in Alaska from stomach contents, March-November

At least fi ve stocks of beluga whales, Delphinapterus leucas, are found in Alaska waters: Beaufort Sea, eastern Chukchi Sea, eastern Bering Sea, Bristol Bay, and Cook Inlet. The two northernmost

Segregation of Beaufort Sea beluga whales during the open-water season

Resource selection functions and distance analysis established that habitat selection differed with length, sex, and reproductive status of whales: females with calves and smaller males selected open-water habitats near the mainland; large males selected closed sea ice cover in and near the Arctic Archipelago.

Groups of related belugas (Delphinapterus leucas) travel together during their seasonal migrations in and around Hudson Bay

It is shown that relatives other than strictly parents, and especially females, play a role in maintaining a social structure that could facilitate the learning of migration routes and cultural conservatism may limit contributions from nearby summer stocks to endangered stocks.

Correlation of a strong Alaska Coastal Current with the presence of beluga whales Delphinapterus leucas near Barrow, Alaska

Oceanographic features and physical processes in the ocean can create regions where prey, and therefore predators, may accumulate. Beluga whales Delphinapterus leucas are the most numerous cetacean

Summer and Autumn Movements of Belugas of the Eastern Beaufort Sea Stock

Beluga whales of the eastern Beaufort Sea stock were tagged with satellite-linked time-depth recorders and tracked during summer and autumn in 1993, 1995, and 1997. Whales occupied the Mackenzie

Winter Movements of Bowhead Whales ( Balaena mysticetus ) in the Bering Sea

Working with subsistence whale hunters, we tagged bowhead whales ( Balaena mysticetus ) with satellite-linked transmitters and documented their movements in the Bering Sea during two winters. We