نتایج جستجو برای: faunal study

تعداد نتایج: 3970241  

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه لرستان - دانشکده علوم پایه 1386

چکیده ندارد.

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه شهید بهشتی - دانشکده علوم زمین 1387

چکیده ندارد.

Journal: :Proceedings of the National Academy of Sciences of the United States of America 2012
Borja Figueirido Christine M Janis Juan A Pérez-Claros Miquel De Renzi Paul Palmqvist

Global climate change is having profound impacts on the natural world. However, climate influence on faunal dynamics at macroevolutionary scales remains poorly understood. In this paper we investigate the influence of climate over deep time on the diversity patterns of Cenozoic North American mammals. We use factor analysis to identify temporally correlated assemblages of taxa, or major evoluti...

The lion-bull iconography during the Achaemenian period of ancient Persia has generated different theories of astronomicaland seasonal events besides the suggestions that it could be the symbol of the time cycle of the day, with lion representingthe sun and bull the night. However, the present paper draws the reader’s attention to the hitherto unexplored angle ofzoology to understand physiognom...

Journal: :Journal of The Korean Society of Agricultural Engineers 2004

2012
Leigh Marsh Jonathan T. Copley Veerle A. I. Huvenne Katrin Linse William D. K. Reid Alex D. Rogers Christopher J. Sweeting Paul A. Tyler

Chemosynthetic primary production by microbes supports abundant faunal assemblages at deep-sea hydrothermal vents, with zonation of invertebrate species typically occurring along physico-chemical gradients. Recently discovered vent fields on the East Scotia Ridge (ESR) in the Southern Ocean represent a new province of vent biogeography, but the spatial dynamics of their distinct fauna have yet ...

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 ...

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