J 2016

Death age, seasonality, taphonomy and colonization of seal carcasses from Ulu Peninsula, James Ross Island, Antarctic Peninsula

NÝVLT, Daniel, Miriam NÝVLTOVÁ FIŠÁKOVÁ, Miloš BARTÁK, Zdeněk STACHOŇ, Václav PAVEL et. al.

Basic information

Original name

Death age, seasonality, taphonomy and colonization of seal carcasses from Ulu Peninsula, James Ross Island, Antarctic Peninsula

Authors

NÝVLT, Daniel (203 Czech Republic, guarantor, belonging to the institution), Miriam NÝVLTOVÁ FIŠÁKOVÁ (203 Czech Republic), Miloš BARTÁK (203 Czech Republic, belonging to the institution), Zdeněk STACHOŇ (203 Czech Republic, belonging to the institution), Václav PAVEL (203 Czech Republic), Bedřich MLČOCH (203 Czech Republic) and Kamil LÁSKA (203 Czech Republic, belonging to the institution)

Edition

Antarctic Science, Cambridge, Cambridge University Press, 2016, 0954-1020

Other information

Language

English

Type of outcome

Článek v odborném periodiku

Field of Study

10618 Ecology

Country of publisher

United States of America

Confidentiality degree

není předmětem státního či obchodního tajemství

Impact factor

Impact factor: 1.461

RIV identification code

RIV/00216224:14310/16:00089223

Organization unit

Faculty of Science

UT WoS

000372521000002

Keywords in English

James Ross Island; preservation state; Prince Gustav Channel; sea ice; seal behaviour

Tags

Tags

International impact, Reviewed
Změněno: 13/3/2018 13:32, doc. Mgr. Daniel Nývlt, Ph.D.

Abstract

V originále

The origin and nature of seal carcasses scattered around the Ulu Peninsula, James Ross Island, is examined using robust and novel multidisciplinary analysis. Spatial distribution analysis indicates their predominance at low elevations and on surfaces with negligible slope. The seals died throughout the last century. Dental cement increments indicate that the seals died in late winter, and we interpret this to show an influence of the persistence and break-up of sea ice and the appearance of pools/cracks in the northern Prince Gustav Channel on death. Specifically, after being trapped by a late winter freeze-up the seals search for open water, become disoriented by snow-covered flat valleys and move inland. Carcasses from all age groups of crabeater seal are found on land, but inland movement is less notable for Weddell and leopard seals. Although most carcasses appear to have remained unchanged during the last 10 years due to the cold and dry conditions, a few carcasses that are located in sites of snow accumulation and subsequent melting have undergone enhanced decay. Decaying seal carcasses represent loci of nutrient release in a nutrient deficient environment and are colonized by algae, cyanobacteria, lichens and mosses. This research suggests further useful studies for the future.

Links

MUNI/A/0952/2013, interní kód MU
Name: Analýza, hodnocení a vizualizace globálních environmentálních změn v krajinné sféře Země (Acronym: AVIGLEZ)
Investor: Masaryk University, Category A

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