Results 11 to 20 of about 18,981 (184)

Episodes of Early Pleistocene West Antarctic Ice Sheet Retreat Recorded by Iceberg Alley Sediments. [PDF]

Paleoceanogr Paleoclimatol, 2022
Abstract Ice loss in the Southern Hemisphere has been greatest over the past 30 years in West Antarctica. The high sensitivity of this region to climate change has motivated geologists to examine marine sedimentary records for evidence of past episodes of West Antarctic Ice Sheet (WAIS) instability.
Bailey I, Hemming S, Reilly BT, Rollinson G, Williams T, Weber ME, Raymo ME, Peck VL, Ronge TA, Brachfeld S, O'Connell S, Tauxe L, Warnock JP, Armbrecht L, Cardillo FG, Du Z, Fauth G, Garcia M, Glueder A, Guitard M, Gutjahr M, Hernández-Almeida I, Hoem FS, Hwang JH, Iizuka M, Kato Y, Kenlee B, Kenlee B, Martos YM, Pérez LF, Seki O, Tripathi S, Zheng X.   +32 more
europepmc   +2 more sources

Permeability of artificial barriers (fences) for wild boar (Sus scrofa) in Mediterranean mixed landscapes. [PDF]

Pest Manag Sci, 2022
The use of well‐maintained big game proof‐type fences with an increase in its maintenance around water courses and during food shortage period could be effective in reduce wild boar conflicts. Abstract BACKGROUND Fences are one of the most widespread manmade features in nature, constituting an artificial limitation to the movement of wildlife. To date,
Laguna E, Barasona JA, Carpio AJ, Vicente J, Acevedo P.   +4 more
europepmc   +2 more sources

The salinity signature of the cross-shelf exchanges in the Southwestern Atlantic Ocean: Satellite observations. [PDF]

J Geophys Res Oceans, 2014
Abstract Satellite‐derived sea surface salinity (SSS) data from Aquarius and SMOS are used to study the shelf‐open ocean exchanges in the western South Atlantic near 35°S. Away from the tropics, these exchanges cause the largest SSS variability throughout the South Atlantic.
Guerrero RA, Piola AR, Fenco H, Matano RP, Combes V, Chao Y, James C, Palma ED, Saraceno M, Strub PT.   +9 more
europepmc   +2 more sources

Spatiotemporal distribution and population structure of Monokalliapseudes schubarti (Tanaidacea: Kalliapseudidae) in an estuary in Southern Brazil. [PDF]

ScientificWorldJournal, 2013
Monokalliapseudes schubarti is an endemic tanaidacean microcrustacean from southeastern Brazil to Uruguay inhabiting low energy estuaries. Saco da Fazenda is located in the estuary of the Itajaí‐Açú River, state of Santa Catarina, Brazil. It is exposed to strong anthropic impact and receives intensive flows of domestic wastewater, solid residues, and ...
Freitas F, Christoffersen ML, de Araújo JP, Branco JO.   +3 more
europepmc   +2 more sources

Altimeter-derived seasonal circulation on the southwest Atlantic shelf: 27°-43°S. [PDF]

J Geophys Res Oceans, 2015
Abstract Altimeter sea surface height (SSH) fields are analyzed to define and discuss the seasonal circulation over the wide continental shelf in the SW Atlantic Ocean (27°–43°S) during 2001–2012. Seasonal variability is low south of the Rio de la Plata (RdlP), where winds and currents remain equatorward for most of the year.
Strub PT, James C, Combes V, Matano RP, Piola AR, Palma ED, Saraceno M, Guerrero RA, Fenco H, Ruiz-Etcheverry LA.   +9 more
europepmc   +2 more sources

Environment and shipping drive environmental DNA beta‐diversity among commercial ports

Molecular Ecology, Volume 32, Issue 23, Page 6696-6709, December 2023., 2023
Abstract The spread of nonindigenous species by shipping is a large and growing global problem that harms coastal ecosystems and economies and may blur coastal biogeographical patterns. This study coupled eukaryotic environmental DNA (eDNA) metabarcoding with dissimilarity regression to test the hypothesis that ship‐borne species spread homogenizes ...
Jose Andrés, Paul Czechowski, Erin Grey, Mandana Saebi, Kara Andres, Christopher Brown, Nitesh Chawla, James J. Corbett, Rein Brys, Phillip Cassey, Nancy Correa, Marty R. Deveney, Scott P. Egan, Joshua P. Fisher, Rian vanden Hooff, Charles R. Knapp, Sandric Chee Yew Leong, Brian J. Neilson, Esteban M. Paolucci, Michael E. Pfrender, Meredith R. Pochardt, Thomas A. A. Prowse, Steven S. Rumrill, Chris Scianni, Francisco Sylvester, Mario N. Tamburri, Thomas W. Therriault, Darren C. J. Yeo, David M. Lodge   +28 more
wiley   +1 more source

Bottom‐Current Variability and the Relationship With Topography and Sedimentary Processes in the Drake Passage

Journal of Geophysical Research: Oceans, Volume 128, Issue 8, August 2023., 2023
Abstract Bottom‐current related sediments have been commonly used for paleoceanographic reconstructions. However, the strength and variability of bottom currents are poorly understood and thus the processes that control sedimentation in deep environments are not clear.
Gastón Kreps, Lester Lembke‐Jene, Silvia Romero, Ramiro Ferrari, Frank Lamy, Elda Miramontes   +5 more
wiley   +1 more source

Tagging, ranging patterns, and behavior of franciscana dolphins (Pontoporia blainvillei) off Argentina and Brazil: Considerations for conservation

Marine Mammal Science, Volume 38, Issue 2, Page 571-605, April 2022., 2022
Abstract The franciscana dolphin, Pontoporia blainvillei, is one of the most threatened cetaceans in the Southwestern Atlantic. Within their limited coastal range off Argentina, Uruguay, and Brazil, franciscanas face human activities, including artisanal gillnet fishing and coastal development.
Randall S. Wells, Marta J. Cremer, Leonardo G. Berninsone, Diego Albareda, Krystan A. Wilkinson, M. Andrew Stamper, Renan L. Paitach, Pablo Bordino   +7 more
wiley   +1 more source

Contribuição à Delimitação das Sub-Regiões de Miranda-Abobral e Aquidauana do Pantanal [PDF]

Anuário do Instituto de Geociências, 2017
Levando-se em consideração a inconsistência trazida na literatura a respeito da delimitação das sub-regiões do Pantanal e ainda a premissa de que para conservar é preciso conhecer, o presente trabalho objetivou contribuir para a delimitação dos ...
Ana Paula Garcia Oliveira, César Claudio Cáceres Encina, Lais Meira de Miranda, Camila Mioto, Antonio Conceição Paranhos Filho   +4 more
doaj   +1 more source

Uso de regressões logísticas múltiplas para mapeamento digital de solos no Planalto Médio do RS Multiple logistic regression applied to soil survey in rio grande do sul state, Brazil

Revista Brasileira de Ciência do Solo, 2008
Regressões nominais logísticas estabelecem relações matemáticas entre variáveis independentes contínuas ou discretas e variáveis dependentes discretas.
Samuel Ribeiro Figueiredo, Elvio Giasson, Carlos Gustavo Tornquist, Paulo César do Nascimento   +3 more
doaj   +1 more source