Satellite tracking large numbers of individuals to infer population level dispersal and core areas for the protection of an endangered species

Aim: Tracking the dispersal patterns and habitat use of migratory species is necessary to delineate optimal areas for protection, with large sample sizes being more representative of the population. Here, we examine the dispersal patterns of a key Mediterranean loggerhead turtle (Caretta caretta) br...

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Vydáno v:	Diversity & distributions Ročník 19; číslo 7; s. 834 - 844
Hlavní autoři:	Schofield, Gail, Dimadi, Alexandra, Fossette, Sabrina, Katselidis, Kostas A., Koutsoubas, Drosos, Lilley, Martin K. S., Luckman, Adrian, Pantis, John D., Karagouni, Amalia D., Hays, Graeme C.
Médium:	Journal Article
Jazyk:	angličtina
Vydáno:	Oxford Blackwell Publishing Ltd 01.07.2013 Blackwell Publishing Blackwell John Wiley & Sons, Inc
Témata:	Adaptive behaviour Animal populations Animal, plant and microbial ecology Applied ecology Aquatic reptiles BIODIVERSITY RESEARCH Biological and medical sciences Breeding Caretta caretta Conservation biology conservation management Conservation, protection and management of environment and wildlife Dispersal Endangered & extinct species Endangered species Environmental conservation Female animals Foraging Foraging behavior Fundamental and applied biological sciences. Psychology General aspects General aspects. Techniques Habitat conservation Habitat utilization Marine ecology Migratory species Position tracking predictive models Protected areas Reptiles & amphibians sample size Sea turtles Seas spatial ecology Teledetection and vegetation maps telemetry Turtles Wildlife conservation MED, Greece MED, Greece, Ionioi Is., Zakynthos I Range finding Endangered species Sample size dispersal Ecology Adaptive behaviour conservation management Biodiversity Forecast model Telemetry Environmental management Dispersion Remote sensing predictive models Satellite tracking Predictive value spatial ecology Adaptation Environmental protection
ISSN:	1366-9516, 1472-4642
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Shrnutí:	Aim: Tracking the dispersal patterns and habitat use of migratory species is necessary to delineate optimal areas for protection, with large sample sizes being more representative of the population. Here, we examine the dispersal patterns of a key Mediterranean loggerhead turtle (Caretta caretta) breeding population to identify priority foraging sites for protection. Location: Zakynthos Island, Greece and the wider Mediterranean. Method: We examined the dispersal patterns and foraging sites of 75 adult loggerheads (n = 38 males and 37 females) tracked from the breeding area of Zakynthos Island (Greece) from 2004 to 2011. We then combined our data with published sea turtle literature to identify key foraging sites for protection. Results: While both males and females exhibited similar dispersal patterns, about 25% males remained < 100 km of Zakynthos, whereas all females (except one) migrated > 200 km. Integration of our data with the wider literature isolated 10 core sites in proximity to existing protected areas, which could potentially protect 64% of the Zakynthos population, while five sites support individuals from at least 10 other loggerhead breeding populations. Main conclusions: Due to the widespread availability of neritic foraging grounds across the Mediterranean, sea turtles from Zakynthos exhibit disparate dispersal patterns. However, protecting only a few objectively defined important sites can encompass a large proportion of the foraging areas used and hence have considerable conservation benefit.
Bibliografie:	istex:A01917CBB324876D579980944953AEDB4F2D7DC7 Swansea University Figure S1 Variation in sea turtle body size (CCL) with latitude of foraging area (F1,60 = 15.05, r2 = 0.2; P < 0.001).c Table S1 Deployment details for the 75 tracked turtles: (a) male (n = 38, of which five were tracked for more than one breeding season) and (b) female (n = 37, of which one was tracked for more than one breeding season). Table S2a. Summary information of the foraging sites identified across the Mediterranean using adult male and female loggerheads tracked from Zakynthos, Greece. S2b. Published literature used to identify overlap in foraging sites with Zakynthos turtles (A) based on tracking datasets and (B) based on genetic data. Thermadap ark:/67375/WNG-Z1WG6X28-0 AXA Research Fund British Chelonia Group Boyd Lyon Sea Turtle Fund Project Aware ArticleID:DDI12077 Peoples Trust for Endangered Species ObjectType-Article-1 SourceType-Scholarly Journals-1 content type line 14 ObjectType-Feature-2 content type line 23
ISSN:	1366-9516 1472-4642
DOI:	10.1111/ddi.12077