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Durvillaea antarctica se caracteriza por presentar al igual que los representantes de las Fucales, una historia de vida sin generación gametófita de vida libre y por poseer reproducción oógama. En este trabajo median...

Se describe en detalle un nuevo estípite petrificado de Millerocaulis Erasmus ex Tidwell emend. Vera, colectado en afloramientos de edad aptiana de la Formación Cerro Negro en Isla Livingston (Antártida). Este espéci...

We identified six fossil-species of angiosperms based on fossil woods from two small collections from the Beta Member (lower Campanian) of the Santa Marta Formation on James Ross Island: 1) Paraphyllanthoxylon antarcticu...

The seed cone Telemachus is known from several Triassic localities in Gondwana. New specimens from two localities in Antarctica provide additional information about the type species, Telemachus elongatus, based on detail...

Different morphotypes of vertically embedded ammonoid shells are abundant in the 1-km-thick deposits of the Santa Marta Formation, Antarctica, that record the evolution of a deep-water delta system. Vertical shells depos...

In this study, we describe, for the first time, the genetic composition of the southern elephant seal Mirounga leonina (SES) breeding colony at Potter Peninsula (PP) (King George Island, Antarctica) based on a fragment o...

Tree growth is one of the main variables needed for forest management planning. The use of simple models containing traditional equations to describe tree growth is common. However, equations that incorporate different f...

Abstract Subglacial water beneath the Antarctic Ice Sheet is often funneled via subglacial channels, which inject freshwater into ice‐shelf cavities where it interacts with ocean water. The temporal variability of this...

Abstract Enhanced Antarctic ice sheet mass loss yields ocean surface freshening, cooling and sea ice expansion, which result in changes in the atmospheric conditions. Using the Southern Ocean Freshwater Input from Antarc...

Abstract The upwelling of warm Circumpolar Deep Water is a key process in the global climate system, transporting heat, nutrients, and carbon poleward towards Antarctic ice shelves. Here we use physical and chemical seaw...

The book details for the first time all past archaeological work in Antarctica, relating to both its use for conservation and research purposes, drawing on published, unpublished and oral information. This work has addre...

Unlike animals, which may migrate to more favorable places to live or modifytheir behaviors if the environmental conditions change, plants normally cannotchoose similar strategies. Alternatively the plants have mechanism...

Materias / palabras clave: Antártida; Antarctica

Materias / palabras clave: Exploradores; Argentina; Explorers; Biography; Antarctica; Discovery and exploration; Argentine

Materias / palabras clave: Regiones antárticas (Chile); Descripciones y viajes; Antarctica; Description and travel; Regiones antárticas chilenas; Regiones antárticas; Chile

Materias / palabras clave: Shackleton, Ernest Henry; Explorers; Exploradores; Antarctica; Discovery and exploration; Antártida; Descubrimiento y exploración

Materias / palabras clave: Antarctica

Materias / palabras clave: Relatos de viajes; Antártida; Antarctica; Discovery and exploration; Tierra del Fuego (Argentina and Chile); Description and travel; Antartida

Registro importado desde BDTD Brasil vía VuFind API. Query: direito. Biblioteca Digital Brasileira de Teses e Dissertações.

At least 50% of the world's seal population is distributed in the pack-ice region surrounding Antarctica. Among the Antarctic seals, Lobodon carcinophaga (commonly known as "crabeater seals") are the most abundant. This ...

Several studies reported decreases in populations of Adélie penguins in the north and west of the Antarctic Peninsula. Thus, from 1994 to 2019 we studied the population trend of Adélie penguins at Hope/Esperanza Bay. F...