Sentences with phrase «how whale populations»

«Our increased understanding of how whale populations are structured can help governments and inter-governmental organizations like the International Whaling Commission improve management decisions in the future,» said Dr. C. Scott Baker of Oregon State University's Marine Mammal Institute and a member of the South Pacific Whale Research Consortium that contributed to the study.

In the largest study of its kind to date, researchers used mitochondrial DNA microsatellites from skin samples gathered from more than 3,000 individual humpback whales across the Southern Hemisphere and the Arabian Sea to examine how whale populations are related to one another, a question that is difficult to answer with direct observations of whales in their oceanic environment.

Not exact matches

A SMALL, poorly studied population of non-migrating grey whales may hold the key to how these ocean giants survived the last ice age.

The research results build on previous regional studies of genetic diversity and will help scientists to better understand how humpback whale populations evolve over time and how to best advise international management authorities.

Scientists conducting the first circum - global assessment of mitochondrial DNA variation in the Southern Hemisphere's humpback whales (Megaptera novaeangliae) have found that whales faithfully returning to calving grounds year after year play a major role in how populations form, according to WCS (Wildlife Conservation Society), the American Museum of Natural History, and a number of other contributing organizations.

«Our findings give us insights into how fidelity to breeding and feeding destinations persist over many generations, resulting in differences between whale populations, and why some populations are more genetically differentiated from the rest.

Even some members of the commission's scientific committee, which tracks the health and populations of whale species worldwide, opposed the proposal, saying it undercut the committee's work, which included calculations of how many whales could be caught.

Roman and his colleagues modeled how that conveyer belt of nutrients has slowed due to the huge declines in whale, seabird and fish populations.

As it turns out, whales exchange lice so readily — and so thoroughly scramble the lice ancestry in each whale population — that lice genetics reveal nothing about how contemporary whales interact.

Now the trio has created a model to examine in more detail how a cap - and - trade market might impact whale populations and how the costs and benefits would change for people who want to hunt or conserve them.

Whale researchers don't know how big the population was before that, but it was devastated enough for the right whale to be given protected status in Whale researchers don't know how big the population was before that, but it was devastated enough for the right whale to be given protected status in whale to be given protected status in 1935.

It even reveals how population sizes of whales have changed during the last million years», summarizes Janke.

Furthermore, we must understand how changes in sea ice cover affect the feeding ecology of humpback whales and their competitors in the short - term and the dynamics of krill populations over the longer term, particularly given the increasing pressure from commercial krill harvests [36].

As a result, understanding changes in population size for social species — several of which, such as African wild dogs and southern resident killer whales, are endangered — requires understanding of what goes on within groups and how individuals fare when they strike out on their own.

Commercial whaling decimated many whale populations, including the eastern Pacific gray whale, but little is known about how population dynamics or ecology differed prior to these removals.

I hear echoes of «Wilson's Law» above, and also some resonance with articles I've written focusing on how environmental and animal - welfare groups, while often working toward shared goals (an end to whaling, for instance) rarely use the same arguments, with one focused on population statistics and the other on ethics.

More recent trips caught footage of a pod of orcas teaching its young how to hunt, which digitally raced around the world of marine mammal scientists, participated in a penguin census, and logged polar bear and whale identification photos for researchers who track global populations of these animals.

We've also learned in recent years how to track elephant seals, sea birds and some whale populations in ways that will change the map of wildlife protection, literally.

O Research Question = How has whaling impacted the blue whale population?