Inferring seal populations from lake sediments
Article Abstract:
It has been possible to use seal hairs contained in lake sediment cores from Signy Island in the Antarctic to gain valuable information about the sharp rise in the population of Antarctic fur seals. Geophysical and biological palaeoclimate indicators found in the cores indicate that changes in natural ecological conditions are unlikely to have prompted the population explosion. There is evidence to indicate a connection between seal populations and trends in sealing and whaling activity.
Publication Name: Nature
Subject: Zoology and wildlife conservation
ISSN: 0028-0836
Year: 1997
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Learned kin recognition cues in a social bird
Article Abstract:
A demonstration that cooperatively breeding long-tailed tits can discriminate between kin and non-kin according to the individual-specific characteristics of contact calls is shown and that individuals learn these calls from provisioning adults during the nestling period is presented. It is concluded that the pattern of cooperative behaviour in this species is consistent with the use of recognition cues learned through association.
Publication Name: Nature
Subject: Zoology and wildlife conservation
ISSN: 0028-0836
Year: 2005
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Long-term vocal recognition in the northern fur seal
Article Abstract:
The northern fur seal is studied to assess its ability to assess vocal characteristics over long periods. The results which reveal that mother-offspring pairs can recognize each other's vocalizations and remember them for up to four years are presented.
Publication Name: Nature
Subject: Zoology and wildlife conservation
ISSN: 0028-0836
Year: 2000
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