Results 151 to 160 of about 48,587 (185)
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Guiana dolphins use mangrove margins as a natural barrier to chase fish prey
Ethology, 2023AbstractThe behavioral plasticity among and within cetacean species can be driven by their prey sources, local adaptations to environmental features, and/or interactions with human activities. One of the tactics displayed by cetaceans is the barrier feeding, in which individuals or groups herd fish schools against natural and non‐natural barriers to ...
Julia C. Pierry +3 more
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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 +14 more
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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 +14 more
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The Journal of the Acoustical Society of America, 2014
Signature whistles have been widely studied in bottlenose dolphins (Tursiops truncatus). A recent study suggested the occurrence of signature whistles in Guiana dolphins (Sotalia guianensis) but could not identify the whistlers. The objective of this study is to describe the whistle characteristics in the population of S.
de Moura Lima, Alice, Le Pendu, Yvonnick
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Signature whistles have been widely studied in bottlenose dolphins (Tursiops truncatus). A recent study suggested the occurrence of signature whistles in Guiana dolphins (Sotalia guianensis) but could not identify the whistlers. The objective of this study is to describe the whistle characteristics in the population of S.
de Moura Lima, Alice, Le Pendu, Yvonnick
openaire +4 more sources
Variation in Guiana dolphin parental care according to calf age class
acta ethologica, 2018An 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 +3 more
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2013
Guiana dolphins (Sotalia guianensis) are small cetaceans that inhabit coastal regions down to a 50 m depth. As a coastally distributed species, they are exposed to a variety of human-induced risks that include passive fishing nets, persistent environmental pollution, and emerging diseases. As a top predatorS. guianensis occupies an important ecological
Jailson Fulgencio, de Moura +4 more
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Guiana dolphins (Sotalia guianensis) are small cetaceans that inhabit coastal regions down to a 50 m depth. As a coastally distributed species, they are exposed to a variety of human-induced risks that include passive fishing nets, persistent environmental pollution, and emerging diseases. As a top predatorS. guianensis occupies an important ecological
Jailson Fulgencio, de Moura +4 more
openaire +2 more sources
Escape response of Guiana dolphins to bottlenose dolphin playback
Journal of Experimental Marine Biology and Ecology, 2023Julia C. Pierry +4 more
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Guiana Dolphin long term survey by deep learning
The Guiana dolphin (Sotalia guianensis), commonly known as estuarine dolphin is one of the ten dolphins in great danger of extinction, currently classified as “near threatened” in the IUCN Red List of Threatened Species (IUCN, 2019). Indeed this species has restricted global distribution [1] as it is only found across the South-Western Atlantic ...Lisa Ferré +3 more
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Zoo Biology, 2009
Bottlenose dolphins (Tursiops truncatus) and Guiana dolphin (Sotalia guianensis) live in sympatry along the Caribbean Coast of Central and South America and social interactions between these species have been described in the Caribbean Coast of Costa Rica, including sexual encounters.
S, Caballero, C S, Baker
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Bottlenose dolphins (Tursiops truncatus) and Guiana dolphin (Sotalia guianensis) live in sympatry along the Caribbean Coast of Central and South America and social interactions between these species have been described in the Caribbean Coast of Costa Rica, including sexual encounters.
S, Caballero, C S, Baker
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Rings of Power: evidence of mud ring feeding performed by Guiana dolphins
Journal of the Marine Biological Association of the United KingdomAbstract To capture prey more efficiently, cetaceans can display a wide range of foraging tactics to separate individual prey. Barrier feeding tactics are performed to restrict prey movements, using natural and non-natural barriers and some species can even create barriers with their own bodies.
Julia C. Pierry +3 more
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Marine Mammal Science, 2018
AbstractA previous comparison of whistles using data sampled at 48 kHz suggested that certain frequency parameters vary along a latitudinal gradient. This geographical pattern may be biased because whistles sampled at higher frequencies could potentially have very different frequency contents.
Juliana Rodrigues Moron +8 more
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AbstractA previous comparison of whistles using data sampled at 48 kHz suggested that certain frequency parameters vary along a latitudinal gradient. This geographical pattern may be biased because whistles sampled at higher frequencies could potentially have very different frequency contents.
Juliana Rodrigues Moron +8 more
openaire +1 more source