Results 141 to 150 of about 41,809 (209)

Biosecurity and Vaccines for Emerging Aquatic Animal RNA Viruses. [PDF]

Viruses
Ahmadivand S, Savage ACNP, Palic D.
europepmc   +1 more source

Trade and Domestic Protection of Endangered Species: Peaceful Coexistence or Continued Conflict? The Shrimp-Turtle Dispute and the World Trade Organization

, 1998
Burr, Mara M., Stewart, Terrence P.
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Ecologically driven differences in individual diet specialization across three populations of Guiana dolphin

Oecologia, 2023
Populations usually considered foraging generalists may include specialized individuals that feed on a restricted subset of the prey spectrum consumed by the population. By analyzing the time series of δ13C and δ15N values in sequential growth layer groups within tooth dentin, we measured population- and individual-level variation in resource use of ...
Clarissa R. Teixeira, S. Botta, M. Cremer, M. Marcondes, Luiza B. Pereira, S. Newsome, F. G. D. Jorge, P. C. Simões‐Lopes   +7 more
semanticscholar   +3 more sources

Habitat use of Guiana dolphin (Sotalia guianensis) in a heavily urbanized embayment

Marine Ecology Progress Series, 2023
Understanding environmental and anthropogenic variables that influence the presence of dolphins in coastal areas is fundamental for conservation planning and forecasting. In this study, we applied generalized additive models to identify areas of high probability of occurrence of Guiana dolphins in Mucuripe embayment, a heavily urbanized area in ...
Aco de Meirelles, KF Choi-Lima, TM Campos Vila Nova, E. Leite de Araujo Monteiro Filho, TMdC Lotufo   +4 more
semanticscholar   +2 more sources

Underwater noise in an impacted environment can affect Guiana dolphin communication.

Marine Pollution Bulletin, 2017
This study focused on whistles produced by Guiana dolphin under different noise conditions in Guanabara Bay, southeastern Brazil. Recording sessions were performed with a fully calibrated recording system. Whistles and underwater noise levels registered during two behavioral states were compared separately between two areas.
Lis Bittencourt, Isabela M. S. Lima, L. G. Andrade, R. Carvalho, T. Bisi, J. Lailson‐Brito, A. Azevedo   +6 more
semanticscholar   +3 more sources

Burst pulses of Guiana dolphin (Sotalia guianensis) in southeastern Brazil.

The Journal of the Acoustical Society of America, 2017
Acoustic studies of Guiana dolphin have been focused on whistles, with little known about pulse signals in this species. This study characterized the temporal and spectral properties of Guiana dolphin burst pulses. Groups of 2 to 23 Guiana dolphins were recorded while feeding and socializing in shallow waters in Guanabara Bay, southeastern Brazil, in ...
L. G. Andrade, T. Bisi, J. Lailson‐Brito, A. Azevedo   +3 more
semanticscholar   +3 more sources

Habitat use by the Guiana dolphin (Sotalia guianensis) (Cetartiodactyla: Delphinidae) in southeastern Brazil

Regional Studies in Marine Science, 2021
Abstract The coastal habit and site fidelity reported for Sotalia guianensis make this species especially vulnerable to human activities. Thus, ecological studies focusing on the habitat use of the populations are essential for S. guianensis protection, as it helps to identify critical areas for conservation.
Ana Ribeiro-Campos, Karina S. Pereira, Carlos Eduardo P. Quintana, Mariana Barbosa, Carolina P. Dias, J. A. Brião, Carlos Vinícius C. dos Santos, C. Castro, Harison S. Pedreira, R. Carvalho, E. Santos-Neto, Lis Bittencourt, T. Bisi, J. Lailson‐Brito, A. Azevedo   +14 more
semanticscholar   +2 more sources

Variation in Guiana dolphin parental care according to calf age class

acta ethologica, 2018
An extended period of parental care is fundamental for survival of cetacean offspring. Although qualitative descriptions of parental care and mother-calf spatial relationships are available for several species, studies using a quantitative approach throughout development of offspring are scarce.
Clarissa R. Teixeira, C. N. Louzada, Andreas L. S. Meyer, E. Monteiro‐Filho   +3 more
semanticscholar   +2 more sources

Guiana Dolphin (Sotalia guianensis) acoustic behavior differs under different noise conditions

Journal of Mammalogy
Coastal environments are essential habitats for small dolphins but are increasingly affected by urban development, with underwater noise pollution posing significant threats.
Daiane S Marcondes, Camilla Domit, M. Cantor   +2 more
semanticscholar   +2 more sources

Guiana dolphin movements across three decades between Sepetiba and Ilha Grande bays in southeastern Brazil

Ocean and Coastal Research
Guiana dolphins in the Costa Verde estuarine complex of southeastern Brazil are relatively well-studied, but there is still limited knowledge about their movement patterns between the two management units in the region.
Daniel Anibolete, Guilherme Maricato, Israel S. Maciel, R. Tardin   +3 more
semanticscholar   +3 more sources