We show that southern elephant seal (Mirounga leonina) colonies existed proximate to the Ross Ice Shelf during the Holocene, well south of their core sub-Antarctic breeding and molting grounds. We propose that this was due to warming (including a previously unrecognized period from _1,100 to 2,300 14C yr B.P.) that decreased coastal sea ice and allowed penetration of warmer-thanpresent climate conditions into the Ross Embayment. If, as proposed in the literature, the ice shelf survived this period, it would have been exposed to environments substantially warmer than present.
|Autori:||HALL B., L; HOELZEL A., R; Baroni, C; DENTON G., H; LE BOEUF B., J; Overturf, B.; TOEPF A., L|
|Titolo:||Holocene elephant seal distribution implies warmer-than-present climate in the Ross Sea|
|Anno del prodotto:||2006|
|Digital Object Identifier (DOI):||10.1073/pnas.0604002103|
|Appare nelle tipologie:||1.1 Articolo in rivista|