Fossil rotifers and the early colonization of an Antarctic Lake

Kerrie M. Swadling; Herbert J G Dartnall; John A E Gibson; Émilie Saulnier-Talbot; Warwick F. Vincent

doi:10.1006/qres.2001.2222

Fossil rotifers and the early colonization of an Antarctic Lake

Kerrie M. Swadling, Herbert J G Dartnall, John A E Gibson, Émilie Saulnier-Talbot, Warwick F. Vincent

Research output: Contribution to journal › Article › peer-review

12 Citations (Scopus)

Abstract

Early Holocene sediments from a continental Antartic lake (Ace Lake, Vestfold Hills, East Antartica) contained abundant fossil rotifers of the genus Notholca. The fossil is similar to specimens of Notholca sp. present in modern-day Ace Lake and other fresh and brackish lakes of the Vestfold Hills. Cyanobacteria and protists (chrysophyte cysts, dinoflagellate cysts, and rhizopod tests) were also recovered from the core samples. These sediments were deposited early in the freshwater phase of Ace Lake, soon after deglaciation of the area. The occurence of this trophically diverse assemblage of organisms at an early in the evolution of the lake suggests either that they were part of an endemic Antarctic flora and fauna which pre-dated the last glacial maximum and survived in glacial refugia or that effecient intercontinental dispersal had occurred.

Original language	English
Pages (from-to)	380-384
Number of pages	5
Journal	Quaternary Research
Volume	55
Issue number	3
DOIs	https://doi.org/10.1006/qres.2001.2222
Publication status	Published - 2001

Keywords

Antarctica biogeography
Colonization
Fossil
Holocene
Lakes
Notholca
Paleoecology
Rotifers

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10.1006/qres.2001.2222

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title = "Fossil rotifers and the early colonization of an Antarctic Lake",

abstract = "Early Holocene sediments from a continental Antartic lake (Ace Lake, Vestfold Hills, East Antartica) contained abundant fossil rotifers of the genus Notholca. The fossil is similar to specimens of Notholca sp. present in modern-day Ace Lake and other fresh and brackish lakes of the Vestfold Hills. Cyanobacteria and protists (chrysophyte cysts, dinoflagellate cysts, and rhizopod tests) were also recovered from the core samples. These sediments were deposited early in the freshwater phase of Ace Lake, soon after deglaciation of the area. The occurence of this trophically diverse assemblage of organisms at an early in the evolution of the lake suggests either that they were part of an endemic Antarctic flora and fauna which pre-dated the last glacial maximum and survived in glacial refugia or that effecient intercontinental dispersal had occurred.",

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AU - Swadling, Kerrie M.

AU - Dartnall, Herbert J G

AU - Gibson, John A E

AU - Saulnier-Talbot, Émilie

AU - Vincent, Warwick F.

PY - 2001

Y1 - 2001

N2 - Early Holocene sediments from a continental Antartic lake (Ace Lake, Vestfold Hills, East Antartica) contained abundant fossil rotifers of the genus Notholca. The fossil is similar to specimens of Notholca sp. present in modern-day Ace Lake and other fresh and brackish lakes of the Vestfold Hills. Cyanobacteria and protists (chrysophyte cysts, dinoflagellate cysts, and rhizopod tests) were also recovered from the core samples. These sediments were deposited early in the freshwater phase of Ace Lake, soon after deglaciation of the area. The occurence of this trophically diverse assemblage of organisms at an early in the evolution of the lake suggests either that they were part of an endemic Antarctic flora and fauna which pre-dated the last glacial maximum and survived in glacial refugia or that effecient intercontinental dispersal had occurred.

AB - Early Holocene sediments from a continental Antartic lake (Ace Lake, Vestfold Hills, East Antartica) contained abundant fossil rotifers of the genus Notholca. The fossil is similar to specimens of Notholca sp. present in modern-day Ace Lake and other fresh and brackish lakes of the Vestfold Hills. Cyanobacteria and protists (chrysophyte cysts, dinoflagellate cysts, and rhizopod tests) were also recovered from the core samples. These sediments were deposited early in the freshwater phase of Ace Lake, soon after deglaciation of the area. The occurence of this trophically diverse assemblage of organisms at an early in the evolution of the lake suggests either that they were part of an endemic Antarctic flora and fauna which pre-dated the last glacial maximum and survived in glacial refugia or that effecient intercontinental dispersal had occurred.

KW - Antarctica biogeography

KW - Colonization

KW - Fossil

KW - Holocene

KW - Lakes

KW - Notholca

KW - Paleoecology

KW - Rotifers

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DO - 10.1006/qres.2001.2222

M3 - Article

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SN - 0033-5894

VL - 55

SP - 380

EP - 384

JO - Quaternary Research

JF - Quaternary Research

IS - 3

ER -

Fossil rotifers and the early colonization of an Antarctic Lake

Abstract

Keywords

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