33 documents found, page 1 of 4
Nutrient input from green turtle eggs and hatchlings in a west Africa Island an...
Ferreira Raposo, Cheila Sofia; Patrício, Ana Rita; Catry, Paulo; Barbosa, Castro; Camará, Assana; Regalla, Aissa; Rebelo, RuiSea turtle nesting brings marine-derived nutrients into sandy beach ecosystems, potentially influencing their dynamics. We investigated nutrient input from green turtle <jats:italic>Chelonia mydas</jats:italic> eggs and hatchlings into coastal habitats in Guinea-Bissau, West Africa. We assessed two islands within the João Vieira-Poilão Marine National Park (‘JVPMNP’), with contrasting sea turtle nesting density...
Movement patterns of green turtles at a key foraging site: the Banc d’Arguin, M...
Mestre, Julie; Patrício, Ana Rita; Sidina, Ebaye; Senhoury, Cheibani; El’bar, Nahi; Beal, Martin; Regalla, Aissa; Catry, PauloInteractions with fisheries is a major threat to sea turtles. However, space-use at foraging locations remains overlooked in many populations, preventing effective protection. We assess the space-use of 14 juvenile and 24 adult green turtles (Chelonia mydas) satellite-tracked in 2018–2022 within a foraging site of global importance for this species, the Banc d’Arguin in Mauritania, West Africa. Turtles exhibite...
Atlantic connectivity of a major green sea turtle Chelonia mydas foraging aggre...
Patrício, Ana Rita; Coveney, Sophia A.; Barbanti, Anna; Barbosa, Castro; Broderick, Annette; El’Bar, Nahi; Godley, Brendan; Hancock, Joana M.ABSTRACT: Understanding population connectivity is paramount for effective conservation. While genetic tools have elucidated sea turtle migration patterns, notable data gaps limit our understanding of ocean-wide connectivity, especially regarding east Atlantic green turtles. We characterized the genetic composition of a globally important green turtle foraging aggregation at the Banc d’Arguin, Mauritania, incor...
Movement patterns of green turtles at a key foraging site: the Banc d’Arguin, M...
Mestre, Julie; Patrício, Ana Rita; Sidina, Ebaye; Senhoury, Cheibani; El’bar, Nahi; Beal, Martin; Regalla De Barros, Aissa; Catry, PauloABSTRACT: Interactions with fisheries is a major threat to sea turtles. However, space-use at foraging locations remains overlooked in many populations, preventing effective protection. We assess the space-use of 14 juvenile and 24 adult green turtles (Chelonia mydas) satellite-tracked in 2018–2022 within a foraging site of global importance for this species, the Banc d’Arguin in Mauritania, West Africa. Turtle...
Inter-island nesting dynamics and clutch survival of green turtles Chelonia myd...
Raposo, Cheila; R., Rebelo; Catry, Paulo; Ferreira-Airaud, Betania; Barbosa, Castro; Garcia, Tumbulo Bamba; Regalla De Barros, Aissa; Sá Sampaio, ManuelUnderstanding spatial heterogeneity in reproductive success among at-risk populations facing localised threats is key for conservation. Sea turtle populations often concentrate at one nesting site, diverting conservation efforts from adjacent smaller rookeries. Poilão Island, Bijagós Archipelago, Guinea-Bissau, is a notable rookery for green turtles Chelonia mydas within the João Vieira-Poilão Marine National P...
Inter-island nesting dynamics and clutch survival of green turtles Chelonia myd...
Raposo, Cheila; Sampaio e rebelo, Rui; Catry, Paulo; Ferreira-Airaud, Maria Betânia; Barbosa, Castro; Garcia, Tumbulo Bamba; Regalla, AissaUnderstanding spatial heterogeneity in reproductive success among at-risk populations facing localised threats is key for conservation. Sea turtle populations often concentrate at one nesting site, diverting conservation efforts from adjacent smaller rookeries. Poilão Island, Bijagós Archipelago, Guinea-Bissau, is a notable rookery for green turtles Chelonia mydas within the João Vieira-Poilão Marine National P...
Atlantic connectivity of a major green sea turtle Chelonia mydas foraging aggre...
Patrício, Ana Rita; Coveney, SA; Barbanti, A; Barbosa, C; Broderick, AC; El’Bar, N; Godley, BJ; Hancock, JM; Regalla, A; Senhoury, C; Sidina, EUnderstanding population connectivity is paramount for effective conservation. While genetic tools have elucidated sea turtle migration patterns, notable data gaps limit our understanding of ocean-wide connectivity, especially regarding east Atlantic green turtles. We characterized the genetic composition of a globally important green turtle foraging aggregation at the Banc d’Arguin, Mauritania, incorporating d...
Key issues in assessing threats to sea turtles: Knowledge gaps and future direc...
Fuentes, Mariana M. P. B.; McMichael, Erin; Kot, Connie Y.; Silver-Gorges, Ian; Wallace, Bryan P.; Godley, Brendan; Brooks, Annabelle M. LSea turtles are an iconic group of marine megafauna that have been exposed to multiple anthropogenic threats across their different life stages, especially in the past decades. This has resulted in population declines, and consequently many sea turtle populations are now classified as threatened or endangered globally. Although some populations of sea turtles worldwide are showing early signs of recovery, many ...
First long‐term study of live observations of loggerhead and leatherback turtle...
Castro, Joana; Hughes, Ashley Payne; Cid, André; Patrício, Ana Rita; Laborde, Marina I; L. Matos, FábioMost of the information available on loggerhead turtles (Caretta caretta) andleatherback turtles (Dermochelys coriacea) for the southern coast of Portugal isbased on stranding data, and to a less extent on telemetry data, with very littleinformation derived from sightings of live animals.2. This work reports sightings data of loggerhead and leatherback turtles off thesouth coast of Portugal collected during ded...
Satellite tracking and field assessment highlight major foraging site for green...
Catry, Paulo; Senhoury, Cheibani; Sidina, Ebaye; El Bar, Nahi; Samba Bilal, Abdellahi; Ventura, Francesco; Godley, Brendan; Pires, António A.There is a remarkable paucity of estimates of the numeric importance of sea turtles at foraging grounds. The Banc d'Arguin (BA) is a vast shallow marine area off the coast of Mauritania, known as a site of world importance for coastal migratory birds and other biodiversity, including extensive seagrass beds. We sampled foraging green turtles on the BA, and extensively tracked adult female green turtles from the...