نتایج جستجو برای: faunal ramain

تعداد نتایج: 2634  

2015
Hiromi NAKANISHI Atsushi MORI Kouki TAKEDA Houdo TANAKA Natsuko KOBAYASHI Keitaro TANOI Takashi YAMAKAWA Satoshi MORI

Six months after the explosion of TEPCO's Fukushima Dai-ichi nuclear power plant, radioactive silver ((110m)Ag), was detected in concentrations of 3754 Bq/kg in Nephila clavata (the orb-web spider; Joro-gumo in Japanese) collected at Nimaibashi, Iitate village in Fukushima Prefecture, whereas (110m)Ag in the soil was 43.1 Bq/kg. A survey of 35 faunal species in the terrestrial environment durin...

1998
B. P. Horton

Foraminiferal assemblages have been collected from ten intertidal study areas situated on the east, south and west coasts of the UK. The assemblages display a vertical zonation which indicates that the distribution of foraminifera in these intertidal environments is usually the direct function of altitude with the duration and frequency of intertidal exposure the most important factors. Multiva...

Journal: :Proceedings of the National Academy of Sciences of the United States of America 2000
M P Richards P B Pettitt E Trinkaus F H Smith M Paunović I Karavanić

Archeological analysis of faunal remains and of lithic and bone tools has suggested that hunting of medium to large mammals was a major element of Neanderthal subsistence. Plant foods are almost invisible in the archeological record, and it is impossible to estimate accurately their dietary importance. However, stable isotope (delta(13)C and delta(15)N) analysis of mammal bone collagen provides...

2013
Bénédicte Ritt Daniel Desbruyères Jean-Claude Caprais Olivier Gauthier Livio Ruffine Roselyne Buscail Karine Olu-Le Roy Jozée Sarrazin

The Mediterranean Sea constitutes a unique environment to study cold-seep ecosystems due to the presence of different geodynamic settings, from an active margin along the Mediterranean Ridge (MR) to a passive margin in the Nile Deep-Sea Fan (NDSF). We attempted to identify the structure of benthic communities associated with the Napoli and Amsterdam mud volcanoes (MVs) located on the MR and to ...

2009
Heather C. Hamilton Michael S. Strickland Kyle Wickings Mark A. Bradford Noah Fierer

Soil faunal communities are often phylogenetically diverse and the accurate assessment of the taxonomic structure of these communities is both time-consuming and requires a high level of taxonomic expertise. Here we describe a DNA sequence-based methodology for characterizing soil microand mesofaunal communities that is similar to the molecular approaches commonly used to survey soil microbial ...

Journal: :Anais da Academia Brasileira de Ciencias 2010
Cristianini T Bergue Abiraman Govindan

The Eocene-Pliocene deep sea ostracodes from the ODP site 744A (Kerguelen Plateau) are herein studied under the taxonomic and paleoecologic aspects. 28 species are identified, being the genera Krithe, Cytherella and Dutoitella the most diversified. A faunal threshold was recorded in the Early Oligocene, which is tentatively explained under the knowledge of the paleoceanographical studies carrie...

2007
Federico Masini Benedetto Sala

Over the last 50 years the studies on terrestrial mammals of the Italian peninsula have provided a large volume of data and a more detailed knowledge of faunal events during the Late Pliocene and Quaternary. Moreover geological, sedimentological, palynological and magnetostratigraphical investigations on the Pliocene–Pleistocene continental sedimentary basins have yielded the possibility of a d...

2011
J. C. Varekamp Walter S. Newman

<!!!!!!!! THOMAS, E. and VAREKAMP, J.C, 1991. Paleo-environmental analyses of marsh sequences (Clinton, Connecticut): evidence for punctuated rise in relative sealevel during the latest Hol ocene. Journal of Coastal Research, SI #11, 125-158. Fort Lauderdale (Florida). ISSN 0749 0208. We developed an integrated chemical-faunal approach to paleo-environmental analysis of salt marsh sequences. Se...

2004
Peter B. deMenocal

Environmental theories of African faunal evolution state that important evolutionary changes during the Pliocene^ Pleistocene interval (the last ca. 5.3 million years) were mediated by changes in African climate or shifts in climate variability. Marine sediment sequences demonstrate that subtropical African climate periodically oscillated between markedly wetter and drier conditions, paced by e...

2008
R. L. LYMAN

Palaeozoological data are asymmetrical because they indicate the presence of a species in the area in which its remains are recovered, but the absence of remains is not necessarily evidence for the absence of a species. It is impossible to measure the magnitude of data asymmetry with respect to biogeography, but the magnitude can be estimated. The proportion of sites in an area where a species ...

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