Matches in SemOpenAlex for { <https://semopenalex.org/work/W4280495891> ?p ?o ?g. }
- W4280495891 abstract "Abstract To understand the demographic responses of green turtles to seagrass decline, we examined a data set from study of a mixed-stock foraging aggregation of immature green turtles, Chelonia mydas, collected in Bermuda (32 o 18’N, − 64 o 46’W) over five decades. Average turtle size (SCL min ) and mass declined by 22.3% and 58.2%, respectively. Aggregation size structure shifted to smaller sizes and now consists of more small turtles and fewer large turtles. Density (turtles ha −1 ) increased significantly but biomass (kg ha −1 ) remained unchanged and low compared to C. mydas biomass observed elsewhere. Green turtles exhibited reduced site fidelity during two portions of the study period, suggesting increased foraging effort. Reduction in turtle body condition index and seagrass coverage occurred from offshore to inshore. Changes in aggregation composition and behavior were consistent with expectations given a documented decline in seagrass availability, combined with increased output from source rookeries. Apparent response to resource decline is traced back to 1976, well before seagrass loss was first documented. Green turtles and their primary food source ( Thalassia testudinum ) are at the northern limit of their range in Bermuda, where seagrasses would be expected to have a reduced tolerance for natural grazing pressure and increased susceptibility to synergistic stressors, especially temperature, bioturbation and phosphorus limitation. Our results suggest that synergistic stressors, and not green turtles alone, have produced the observed reduction in seagrasses on the Bermuda Platform. Given that seagrass declines have been reported worldwide, our findings may suggest how green turtles will respond elsewhere." @default.
- W4280495891 created "2022-05-22" @default.
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- W4280495891 date "2022-05-10" @default.
- W4280495891 modified "2023-09-26" @default.
- W4280495891 title "A half-century of demographic changes in a green turtle (Chelonia mydas) foraging aggregation during an era of seagrass decline" @default.
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- W4280495891 doi "https://doi.org/10.1007/s00227-022-04056-5" @default.
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