DataSheet_1_Isotopic niches of juvenile and adult green turtles (Chelonia mydas) in feeding and nesting areas in Brazil, southwestern Atlantic Ocean.zip
Stable isotope analysis is an approach that allows inferring feeding ecology and trophic structure of populations, especially for species that are difficult to observe in natural habitats, such as marine turtles. This study investigated the niche breadth of adult and juvenile green sea turtles (Chel...
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ftfrontimediafig:oai:figshare.com:article/24154122 2024-09-15T18:36:29+00:00 DataSheet_1_Isotopic niches of juvenile and adult green turtles (Chelonia mydas) in feeding and nesting areas in Brazil, southwestern Atlantic Ocean.zip Amanda Fernandes Leandro Bugoni Adalto Bianchini Cleverson Zapelini Alexandre Schiavetti 2023-09-18T04:15:48Z https://doi.org/10.3389/fmars.2023.1203900.s001 https://figshare.com/articles/dataset/DataSheet_1_Isotopic_niches_of_juvenile_and_adult_green_turtles_Chelonia_mydas_in_feeding_and_nesting_areas_in_Brazil_southwestern_Atlantic_Ocean_zip/24154122 unknown doi:10.3389/fmars.2023.1203900.s001 https://figshare.com/articles/dataset/DataSheet_1_Isotopic_niches_of_juvenile_and_adult_green_turtles_Chelonia_mydas_in_feeding_and_nesting_areas_in_Brazil_southwestern_Atlantic_Ocean_zip/24154122 CC BY 4.0 Oceanography Marine Biology Marine Geoscience Biological Oceanography Chemical Oceanography Physical Oceanography Marine Engineering isotopic niche ontogenetic changes South Atlantic Ocean stable isotopes turtle size Dataset 2023 ftfrontimediafig https://doi.org/10.3389/fmars.2023.1203900.s001 2024-08-19T06:19:57Z Stable isotope analysis is an approach that allows inferring feeding ecology and trophic structure of populations, especially for species that are difficult to observe in natural habitats, such as marine turtles. This study investigated the niche breadth of adult and juvenile green sea turtles (Chelonia mydas) through δ 15 N and δ 13 C values in carapace scutes. During 2017 and 2018, tissues were collected from juveniles in a feeding area in southeastern Brazil (n = 60) and from adults in a nesting area in northeastern Brazil, at Fernando de Noronha (n = 21). Our results revealed no temporal variations in the isotopic values of adult green turtles and the mean δ 15 N values are compatible with the isotopic values of primarily herbivorous animals. In southeastern Brazil, the δ 13 C values and isotopic niche breadth differences observed in juvenile green turtles suggest that variations in habitat (i.e., channel between the municipalities of Ilhabela and São Sebastião - “SSC” and region comprising the other two municipalities of Ubatuba and Caraguatatuba - “CAU”, as defined in this study based on oceanographic current dynamics) can influence their isotopic niche. The isotopic values observed in juvenile green turtles demonstrated a high degree of feeding behavior plasticity and individual variability, which were possibly influenced by the dynamic of oceanographic currents and seasonal nutrient inputs. These findings help to elucidate the feeding behavior of green turtles at different life stages and the potential influence of oceanographic current dynamics in key feeding sites for juvenile green turtles. Dataset South Atlantic Ocean Frontiers: Figshare |
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Open Polar |
collection |
Frontiers: Figshare |
op_collection_id |
ftfrontimediafig |
language |
unknown |
topic |
Oceanography Marine Biology Marine Geoscience Biological Oceanography Chemical Oceanography Physical Oceanography Marine Engineering isotopic niche ontogenetic changes South Atlantic Ocean stable isotopes turtle size |
spellingShingle |
Oceanography Marine Biology Marine Geoscience Biological Oceanography Chemical Oceanography Physical Oceanography Marine Engineering isotopic niche ontogenetic changes South Atlantic Ocean stable isotopes turtle size Amanda Fernandes Leandro Bugoni Adalto Bianchini Cleverson Zapelini Alexandre Schiavetti DataSheet_1_Isotopic niches of juvenile and adult green turtles (Chelonia mydas) in feeding and nesting areas in Brazil, southwestern Atlantic Ocean.zip |
topic_facet |
Oceanography Marine Biology Marine Geoscience Biological Oceanography Chemical Oceanography Physical Oceanography Marine Engineering isotopic niche ontogenetic changes South Atlantic Ocean stable isotopes turtle size |
description |
Stable isotope analysis is an approach that allows inferring feeding ecology and trophic structure of populations, especially for species that are difficult to observe in natural habitats, such as marine turtles. This study investigated the niche breadth of adult and juvenile green sea turtles (Chelonia mydas) through δ 15 N and δ 13 C values in carapace scutes. During 2017 and 2018, tissues were collected from juveniles in a feeding area in southeastern Brazil (n = 60) and from adults in a nesting area in northeastern Brazil, at Fernando de Noronha (n = 21). Our results revealed no temporal variations in the isotopic values of adult green turtles and the mean δ 15 N values are compatible with the isotopic values of primarily herbivorous animals. In southeastern Brazil, the δ 13 C values and isotopic niche breadth differences observed in juvenile green turtles suggest that variations in habitat (i.e., channel between the municipalities of Ilhabela and São Sebastião - “SSC” and region comprising the other two municipalities of Ubatuba and Caraguatatuba - “CAU”, as defined in this study based on oceanographic current dynamics) can influence their isotopic niche. The isotopic values observed in juvenile green turtles demonstrated a high degree of feeding behavior plasticity and individual variability, which were possibly influenced by the dynamic of oceanographic currents and seasonal nutrient inputs. These findings help to elucidate the feeding behavior of green turtles at different life stages and the potential influence of oceanographic current dynamics in key feeding sites for juvenile green turtles. |
format |
Dataset |
author |
Amanda Fernandes Leandro Bugoni Adalto Bianchini Cleverson Zapelini Alexandre Schiavetti |
author_facet |
Amanda Fernandes Leandro Bugoni Adalto Bianchini Cleverson Zapelini Alexandre Schiavetti |
author_sort |
Amanda Fernandes |
title |
DataSheet_1_Isotopic niches of juvenile and adult green turtles (Chelonia mydas) in feeding and nesting areas in Brazil, southwestern Atlantic Ocean.zip |
title_short |
DataSheet_1_Isotopic niches of juvenile and adult green turtles (Chelonia mydas) in feeding and nesting areas in Brazil, southwestern Atlantic Ocean.zip |
title_full |
DataSheet_1_Isotopic niches of juvenile and adult green turtles (Chelonia mydas) in feeding and nesting areas in Brazil, southwestern Atlantic Ocean.zip |
title_fullStr |
DataSheet_1_Isotopic niches of juvenile and adult green turtles (Chelonia mydas) in feeding and nesting areas in Brazil, southwestern Atlantic Ocean.zip |
title_full_unstemmed |
DataSheet_1_Isotopic niches of juvenile and adult green turtles (Chelonia mydas) in feeding and nesting areas in Brazil, southwestern Atlantic Ocean.zip |
title_sort |
datasheet_1_isotopic niches of juvenile and adult green turtles (chelonia mydas) in feeding and nesting areas in brazil, southwestern atlantic ocean.zip |
publishDate |
2023 |
url |
https://doi.org/10.3389/fmars.2023.1203900.s001 https://figshare.com/articles/dataset/DataSheet_1_Isotopic_niches_of_juvenile_and_adult_green_turtles_Chelonia_mydas_in_feeding_and_nesting_areas_in_Brazil_southwestern_Atlantic_Ocean_zip/24154122 |
genre |
South Atlantic Ocean |
genre_facet |
South Atlantic Ocean |
op_relation |
doi:10.3389/fmars.2023.1203900.s001 https://figshare.com/articles/dataset/DataSheet_1_Isotopic_niches_of_juvenile_and_adult_green_turtles_Chelonia_mydas_in_feeding_and_nesting_areas_in_Brazil_southwestern_Atlantic_Ocean_zip/24154122 |
op_rights |
CC BY 4.0 |
op_doi |
https://doi.org/10.3389/fmars.2023.1203900.s001 |
_version_ |
1810480156227141632 |