6 research outputs found
use by hawksbill turtles Shifting the life-history paradigm: discovery of novel habitat "Data Supplement"
use by hawksbill turtles Shifting the life-history paradigm: discovery of novel habitat "Data Supplement"
Data from: Natal foraging philopatry in eastern Pacific hawksbill turtles
The complex processes involved with animal migration have long been a subject of biological interest and broad-scale movement patterns of many marine turtle populations still remain unresolved. While it is widely accepted that once marine turtles reach sexual maturity they home to natal areas for nesting or reproduction, the role of philopatry to natal areas during other life stages has received less scrutiny, despite widespread evidence across the taxa. Here we report on genetic research that indicates that juvenile hawksbill turtles (Eretmochelys imbricata) in the eastern Pacific Ocean use foraging grounds in the region of their natal beaches, a pattern we term natal foraging philopatry (NFP). Our findings confirm that traditional views of natal homing solely for reproduction are incomplete and that many marine turtle species exhibit philopatry to natal areas to forage. Our results have important implications for life-history research and conservation of marine turtles and may extend to other wide-ranging marine vertebrates that demonstrate natal philopatry
Supplemental Table 1 from Natal foraging philopatry in eastern Pacific hawksbill turtles
Results (mean % ± 95% confidence intervals in parentheses) from the Bayesian mixed stock analysis from hawksbill rookeries ranked by location to the four regional foraging grounds (RFGs). The two rookeries in RFG2 were combined into a single regional estimate for the regional analysis due to their proximity and genetic similarity
Supplemental Figure 1. from Natal foraging philopatry in eastern Pacific hawksbill turtles
Results of the principal components analysis of the eight foraging grounds with sample sizes ranging from n = 20-117 showing the four clusters that determined the four regional foraging grounds (RFGs). Samples from neighboring foraging grounds with sample sizes ranging from n = 1-7 were pooled into each RFG for the Bayesian mixed stock analysis