Small-scale movements and site fidelity of two sympatric sea turtle species at a remote atoll

Understanding natural movement patterns and ecological roles of marine megafauna is a research priority best studied in areas with minimal human impact. The spatial distribution patterns specifically for immature turtles at foraging grounds have been highlighted as a research gap for effective manag...

Celý popis

Uloženo v:

Podrobná bibliografie
Vydáno v:	Marine biology Ročník 171; číslo 4; s. 91
Hlavní autoři:	Sanchez, Cheryl L., Bunbury, Nancy, Mortimer, Jeanne A., A’Bear, Luke, Appoo, Jennifer, Betts, Michael, von Brandis, Rainer, Cook, Lorraine, van de Crommenacker, Janske, Currie, Jock C., Doak, Naomi, Fleischer-Dogley, Frauke, Mahoune, Terrence, Mederic, Emma, Mels, Bruno, Pistorius, Pierre, Richards, Heather, Samedi, Uzice, Casale, Paolo
Médium:	Journal Article
Jazyk:	angličtina
Vydáno:	Berlin/Heidelberg Springer Berlin Heidelberg 01.04.2024 Springer Springer Nature B.V
Témata:	Accuracy anthropogenic activities Aquatic reptiles Atolls Avoidance Avoidance behavior Behavior benthic ecosystems Benthos Biomedical and Life Sciences Chelonia mydas Distribution patterns Environmental aspects Eretmochelys imbricata fauna Freshwater & Marine Ecology Habitat selection Habitats Human impact Human influences Life Sciences Marine & Freshwater Sciences Marine biology Marine ecology mark-recapture studies Megafauna Microbiology Oceanography Original Paper philopatry Protection and preservation Reptiles & amphibians Sea turtles Seychelles Site fidelity Spatial distribution species Sympatric populations sympatry Turtles Zoology Seychelles Immature foraging ground Capture–mark–recapture Indian Ocean Aldabra Atoll
ISSN:	0025-3162, 1432-1793
On-line přístup:	Získat plný text
Tagy:	Přidat tag Žádné tagy, Buďte první, kdo vytvoří štítek k tomuto záznamu!

Popis
Shrnutí:	Understanding natural movement patterns and ecological roles of marine megafauna is a research priority best studied in areas with minimal human impact. The spatial distribution patterns specifically for immature turtles at foraging grounds have been highlighted as a research gap for effective management and conservation strategies for sea turtle populations. Capture–mark–recapture (CMR) records ( n = 2287) of 1672 immature green ( Chelonia mydas ) ( n = 1158) and hawksbill turtles ( Eretmochelys imbricata ) ( n = 514) from a long-term (1981–2021) in-water CMR program at Aldabra Atoll, Seychelles, were analyzed for 10 sites (0.35–25 km apart). Site fidelity was not correlated with either season or turtle size. Green turtles had lower site fidelity than hawksbill turtles. Green turtles showed avoidance (i.e., opposite of fidelity) of three sites, while hawksbill turtles displayed high fidelity to two sites. Sites displaying non-random behavior (avoidance and/or fidelity) did not share the same benthic habitat types. Results indicate that fidelity can be detected at a fine scale with CMR, but that further exploration into the habitat characteristics of the sites and the ecological roles of both species at the atoll is needed.
Bibliografie:	ObjectType-Article-1 SourceType-Scholarly Journals-1 ObjectType-Feature-2 content type line 14 content type line 23
ISSN:	0025-3162 1432-1793
DOI:	10.1007/s00227-024-04414-5