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.Základní údaje
Originální název
Death age, seasonality, taphonomy and colonization of seal carcasses from Ulu Peninsula, James Ross Island, Antarctic Peninsula
Autoři
NÝVLT, Daniel (203 Česká republika, garant, domácí), Miriam NÝVLTOVÁ FIŠÁKOVÁ (203 Česká republika), Miloš BARTÁK (203 Česká republika, domácí), Zdeněk STACHOŇ (203 Česká republika, domácí), Václav PAVEL (203 Česká republika), Bedřich MLČOCH (203 Česká republika) a Kamil LÁSKA (203 Česká republika, domácí)
Vydání
Antarctic Science, Cambridge, Cambridge University Press, 2016, 0954-1020
Další údaje
Jazyk
angličtina
Typ výsledku
Článek v odborném periodiku
Obor
10618 Ecology
Stát vydavatele
Spojené státy
Utajení
není předmětem státního či obchodního tajemství
Impakt faktor
Impact factor: 1.461
Kód RIV
RIV/00216224:14310/16:00089223
Organizační jednotka
Přírodovědecká fakulta
UT WoS
000372521000002
Klíčová slova anglicky
James Ross Island; preservation state; Prince Gustav Channel; sea ice; seal behaviour
Štítky
Příznaky
Mezinárodní význam, Recenzováno
Změněno: 13. 3. 2018 13:32, doc. Mgr. Daniel Nývlt, Ph.D.
Anotace
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.
Návaznosti
MUNI/A/0952/2013, interní kód MU |
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