Search Results - "Botta, Silvina"

Resource partitioning among stranded aquatic mammals from Amazon and Northeastern coast of Brazil revealed through Carbon and Nitrogen Stable Isotopes by Costa, Alexandra F., Botta, Silvina, Siciliano, Salvatore, Giarrizzo, Tommaso

“…Aquatic mammals play an important role in community structure. The present study applied stable isotope analysis (SIA) to evidence trophic relationships and…”
Get full text

Skin δ13C and δ15N reveal spatial and temporal patterns of habitat and resource use by free-ranging odontocetes from the southwestern Atlantic Ocean by Troina, Genyffer Cibele, Botta, Silvina, Dehairs, Frank, Di Tullio, Juliana Couto, Elskens, Marc, Secchi, Eduardo Resende

“…Large diversity and abundance of cetacean species occur along the Brazilian outer continental shelf and slope waters. In the present study, we analyzed carbon…”
Get full text

Isotope-based inferences of skipjack tuna feeding ecology and movement in the southwestern Atlantic Ocean by Coletto, Juliano L., Botta, Silvina, Fischer, Luciano G., Newsome, Seth D., Madureira, Lauro S.P.

“…Skipjack tuna (Katsuwonus pelamis) sustain a large-scale fishery in the southwest Atlantic Ocean (SWA), but information about its foraging ecology in this…”
Get full text

Fine-scale genetic structure in Lahille’s bottlenose dolphins (Tursiops truncatus gephyreus) is associated with social structure and feeding ecology by Genoves, Rodrigo Cezar, Fruet, Pedro F., Botta, Silvina, Beheregaray, Luciano B., Möller, Luciana M., Secchi, Eduardo R.

“…Varying levels of population structure may arise from interactions between intrinsic behavioral and demographic factors and extrinsic environmental factors…”
Get full text

Segregation of diets by sex and individual in South American fur seals by de Lima, Renan C., Franco-Trecu, Valentina, Carrasco, Thayara S., Inchausti, Pablo, Secchi, Eduardo R., Botta, Silvina

“…Trophic niche width and individual specialization among marine predators are often subjected to seasonal constraints. Differences are expected to arise for…”
Get full text

Penguin predation by extra-limital sub-Antarctic fur seals Arctocephalus tropicalis by Machado, Rodrigo, Perez, Martin Sucunza, Arús, Bernardo A., de Lima, Renan C., Botta, Silvina, Valiati, Victor Hugo, Oliveira, Larissa R., Carlos, Caio J.

“…Sub-Antarctic fur seals, Arctocephalus tropicalis , are widely distributed in the southern hemisphere, breeding on islands north of the Antarctic Convergence…”
Get full text

Feeding ecology of two subspecies of bottlenose dolphin: a tooth tale by Pereira, Luiza B., Botta, Silvina, Teixeira, Clarissa R., Fruet, Pedro, Simões-Lopes, Paulo C., Daura-Jorge, Fábio G.

“…Two subspecies of bottlenose dolphins are observed, not simultaneously, in a narrow coastal area of the western South Atlantic Ocean. However, their trophic…”
Get full text

Ossification Pattern of Estuarine Dolphin (Sotalia guianensis) Forelimbs, from the Coast of the State of Espírito Santo, Brazil by de Carvalho, Anna Paula Martins, Lima, Juliana Ywasaki, Azevedo, Carolina Torres, Botta, Silvina, de Queiroz, Fábio Ferreira, Campos, Adélia Sepúlveda, Barbosa, Lupércio de Araújo, da Silveira, Leonardo Serafim

“…The estuarine dolphin, Sotalia guianensis, is one of the most abundant cetacean species in Brazil. Determination of age and of aspects associated with the…”
Get full text

Age estimation and growth layer patterns in teeth of crabeater seals: A comparison of techniques by Cebuhar, Julieta, Negrete, Javier, Botta, Silvina

“…Age estimation of marine mammals provides important information about ecological and life history parameters. Counting growth layer groups (GLGs) in the…”
Get full text

Plastic ingestion by odontocetes from the Western South Atlantic: A particular concern to a threatened species by Zimmer-Correa, Marina, Carneiro Proietti, Maíra, Couto Di Tullio, Juliana, Rodrigues, Lucas dos S., Quadro Oreste, Eliezer, Kessler, Felipe, Bassoi, Manuela, Botta, Silvina

“…The ingestion of debris by marine fauna is a growing threat to biodiversity. This study aimed to evaluate and characterize litter ingestion by odontocetes from…”
Get full text

Niche partitioning among odontocetes in a marine biogeographic transition zone of the western South Atlantic Ocean by Tatsch, Ana Carolina, de Lima, Renan C., Secchi, Eduardo R., Botta, Silvina

“…Toothed cetaceans represent a diverse and important component in poorly studied pelagic food webs. We used the variation in δ 13 C and δ 15 N values in tooth…”
Get full text

Feeding ecology of the olive ridley turtle (Lepidochelys olivacea) in southern Brazil by Maruyama, Ademir S., Botta, Silvina, Bastos, Rodrigo F., da Silva, Andrine Paiva, Monteiro, Danielle S.

“…The olive ridley turtle ( Lepidochelys olivacea ) is the least studied sea turtle species, despite being the most abundant. Few studies on its diet have been…”
Get full text

Historic foraging ecology of the endangered Lahille's bottlenose dolphin (Tursiops truncatus gephyreus) inferred by stable isotopes by Campos-Rangel, Andrea, Bastida, Ricardo, Fruet, Pedro, Laporta, Paula, Cappozzo, Humberto Luis, Valdivia, Meica, Vermeulen, Els, Botta, Silvina

“…The main aim of this work was to evaluate historical changes in the foraging ecology of Lahille's bottlenose dolphin (Tursiops truncatus gephyreus) along its…”
Get full text

Skin [delta].sup.13C and [delta].sup.15N reveal spatial and temporal patterns of habitat and resource use by free-ranging odontocetes from the southwestern Atlantic Ocean by Troina, Genyffer Cibele, Botta, Silvina, Dehairs, Frank, Di Tullio, Juliana Couto, Elskens, Marc, Secchi, Eduardo Resende

“…Large diversity and abundance of cetacean species occur along the Brazilian outer continental shelf and slope waters. In the present study, we analyzed carbon…”
Get full text

Combining isotopic analysis of bulk-skin and individual amino acids to investigate the trophic position and foraging areas of multiple cetacean species in the western South Atlantic by Troina, Genyffer C., Riekenberg, Philip, van der Meer, Marcel T.J., Botta, Silvina, Dehairs, Frank, Secchi, Eduardo R.

“…We investigated the trophic structure and habitat use of ten cetacean species occurring in the oceanic waters of the western South Atlantic using…”
Get full text

Zooplankton-based δ13C and δ15N isoscapes from the outer continental shelf and slope in the subtropical western South Atlantic by Troina, Genyffer Cibele, Dehairs, Frank, Botta, Silvina, Tullio, Juliana Couto Di, Elskens, Marc, Secchi, Eduardo Resende

“…Characterizing the patterns of stable carbon (δ13C) and nitrogen (δ15N) isotopes at the base of the food webs (baseline) is essential in ecological studies for…”
Get full text

Isotopic evidence of the effect of warming on the northern Antarctic Peninsula ecosystem by Seyboth, Elisa, Botta, Silvina, Mendes, Carlos Rafael Borges, Negrete, Javier, Dalla Rosa, Luciano, Secchi, Eduardo Resende

“…The Antarctic Peninsula (AP) region is one of the areas under faster warming rates worldwide, and where food web changes have been observed in the last…”
Get full text

Isotopic niche overlap and partition among three Antarctic seals from the Western Antarctic Peninsula by Botta, Silvina, Secchi, Eduardo R., Rogers, Tracey L., Prado, Jonatas H.F., de Lima, Renan C., Carlini, Pedro, Negrete, Javier

“…In the present study we used stable carbon (δ13C) and nitrogen (δ15N) analysis of whiskers to investigate the isotopic niche overlap and partition among three…”
Get full text

Potential biases in dietary interpretation derived from stable isotope analysis of small dolphin teeth by Troina, Genyffer C., Teixeira, Clarissa R., Dehairs, Frank, Secchi, Eduardo R., Botta, Silvina

“…We analyzed δ13C and δ15N values in different tooth portions (Growth Layer Groups, GLGs) of franciscanas, Pontoporia blainvillei, to investigate their effect…”
Get full text

Anthropogenic debris in three sympatric seal species of the Western Antarctic Peninsula by Cebuhar, Julieta D., Negrete, Javier, Rodríguez Pirani, Lucas S., Picone, A. Lorena, Proietti, Maira, Romano, Rosana M., Della Védova, Carlos O., Casaux, Ricardo, Secchi, Eduardo R., Botta, Silvina

“…Litter pollution is a growing concern, including for Antarctica and the species that inhabit this ecosystem. In this study, we investigated the microplastic…”
Get full text