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Trackway of a disabled seabird

Wetzel, Andreas. (2019) Trackway of a disabled seabird. Ichnos, 26 (1). pp. 80-84.

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Official URL: https://edoc.unibas.ch/71685/

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Abstract

An uncommon trackway of a seabird consisting of impressions of the right foot accompanied at the left side at the supposed position of the foot only by holes was produced by a gull having two legs, but only one foot. Foot size and stride are typical of an adult herring gull. The stride is unequal between right-left and left-right impression by ~15% as the digitigrade producer experienced re-distribution of load due to the missing foot. Tracks of disabled seabirds are underrepresented in reports of both modern settings as well as the fossil record when compared with modern observations. In present time, about 2% of the seabirds have injured feet or legs. Today, however, injuries of seabirds might have increased due to human fishery activities. Actual observations show that fossilisation of such trackways is favoured by microbes preferentially growing in the impressions that are moist for a prolonged period of time.
Faculties and Departments:05 Faculty of Science > Departement Umweltwissenschaften > Ehemalige Einheiten Umweltwissenschaften > Sedimentology (Wetzel)
UniBasel Contributors:Wetzel, Andreas
Item Type:Article, refereed
Article Subtype:Research Article
Publisher:Taylor & Francis
ISSN:1042-0940
e-ISSN:1563-5236
Note:Publication type according to Uni Basel Research Database: Journal article
Language:English
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Last Modified:13 Aug 2019 15:27
Deposited On:13 Aug 2019 15:22

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