Sentences with phrase «predation by killer whales»

Not exact matches

In addition, a global theory of killer whale predation depends on educated — and far - flung — guesses of how many marine mammals may have been killed by orcas over a set period of time.

We are recruiting helpers for two periods; - late August to mid December: focus is elephant seal breeding, killer whale predation on weaned elephant seal pups, establishment of pairs and territories by skuas - mid December to late March: focus is elephant seal moulting, genaral killer whale activity and behavior, intensive study of skuas behaviour and communication, monitoring of breeding of marine birds and raptors, collection of general environmental data Only applicants who can stay for a whole period (about 3 months and a half) can be taken into consideration.