Results 41 to 50 of about 273,761 (310)

Antarctic, Sub-Antarctic and cold temperate echinoid database [PDF]

open access: yesZooKeys, 2012
This database includes spatial data of Antarctic, Sub-Antarctic and cold temperate echinoid distribution (Echinodermata: Echinoidea) collected during many oceanographic campaigns led in the Southern Hemisphere from 1872 to 2010. The dataset lists occurrence data of echinoid distribution south of 35°S latitude, together with information on taxonomy ...
Pierrat, Benjamin   +3 more
openaire   +4 more sources

Anisotropy of magnetic susceptibility of Cretaceous to Eocene volcanic rocks from southern part of King George Island, West Antarctica [PDF]

open access: yesPolish Polar Research
The anisotropy of magnetic susceptibility (AMS) was determined for 147 specimens from 14 sites of Cretaceous to Eocene volcanics from south-central King George Island.
Jerzy Nawrocki, Tomasz Werner
doaj   +1 more source

A Station-Based Southern Annular Mode Index from 1884 to 2005 [PDF]

open access: yes, 2009
Atmospheric pressure observations from the Southern Hemisphere are used to estimate monthly and annually averaged indexes of the southern annular mode (SAM) back to 1884.
Allan   +38 more
core   +1 more source

The variability of surface radiation fluxes over landfast sea ice near Zhongshan station, east Antarctica during austral spring

open access: yesInternational Journal of Digital Earth, 2019
Surface radiative fluxes over landfast sea ice off Zhongshan station have been measured in austral spring for five springs between 2010 and 2015.
Lejiang Yu   +9 more
doaj   +1 more source

Promotion or protection : the management of tourist visitation to New Zealand's Antarctic and sub-Antarctic territories New Zealand as a case study : a thesis presented in partial fulfilment of the requirements for the degree of Master of Business Studies in Management Systems at Massey University [PDF]

open access: yes, 1993
Antarctica and the sub-Antarctic islands are among the last regions on earth that are still relatively unspoilt from human activity. At the same time, they are also among the last tourism frontiers in the world.
Wouters, Mariska Marieke
core  

A contribution to the anatomy of two rare cetacean species: The hourglass dolphin (Cephalorhynchus cruciger) and the spectacled porpoise (Phocoena dioptrica)

open access: yesThe Anatomical Record, EarlyView.
Abstract The anatomical description of the hourglass dolphin (Cephalorhynchus cruciger) and the spectacled porpoise (Phocoena dioptrica) remains largely unexplored, due to limited specimen availability and preservation challenges. This study employed digital imaging techniques, conventional histology, and computed tomography to provide visualization of
Jean‐Marie Graïc   +26 more
wiley   +1 more source

Differing preferences of Antarctic soil nematodes for microbial prey [PDF]

open access: yes, 2004
We tested the preferences of three nematode taxa, Geomonhystera villosa, Plectus spp. and Teratocephalus spp., extracted from moss at Signy Island in the Maritime Antarctic, for two microalgae, three microfungi and six heterotrophic bacteria, each also ...
Newsham, Kevin K.   +3 more
core   +1 more source

Osteological correlates of the respiratory and vascular systems in the neural canals of Mesozoic ornithurines Ichthyornis and Janavis

open access: yesThe Anatomical Record, EarlyView.
Abstract In birds, the neural canal houses a variety of anatomical structures including the spinal cord, meninges, spinal vasculature, and respiratory diverticula. Among these, paramedullary diverticula and the extradural dorsal spinal vein may leave behind osteological correlates in the form of pneumatic foramina and fossae, and a bilobed geometry of ...
Jessie Atterholt   +5 more
wiley   +1 more source

Origin, evolution and biogeographic dynamics of the European rabbit (Oryctolagus cuniculus) in Southwestern Europe

open access: yesThe Anatomical Record, EarlyView.
Abstract The Pleistocene is a key period for understanding the evolutionary history and palaeobiogeography of the European rabbit (Oryctolagus cuniculus). The species was first documented in southeastern Iberia at the beginning of the Middle Pleistocene and appears to have rapidly spread throughout Southwestern Europe, where it was found in numerous ...
Maxime Pelletier
wiley   +1 more source

Parameterization of the downward long-wave radiation at the Earth’s surface in polar regions

open access: yesMeteorologische Zeitschrift, 1994
Various parameterization schemes for the downward long-wave radiation at the Earth's surface which have been frequently applied in sea ice and snow cover models are tested with the aid of one year's measurements at the German stations "Koldewey" and ...
Gert König-Langlo, Ernst Augstein
doaj   +1 more source

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