|   | 
Details
   web
Records
Author Bjorndal, K.A.; Chaloupka, M.; Saba, V.S.; Diez, C.E.; van Dam, R.P.; Krueger, B.H.; Horrocks, J.A.; Santos, A.J.B.; Bellini, C.; Marcovaldi, M.A.G.; Nava, M.; Willis, S.; Godley, B.J.; Gore, S.; Hawkes, L.A.; McGowan, A.; Witt, M.J.; Stringell, T.B.; Sanghera, A.; Richardson, P.B.; Broderick, A.C.; Phillips, Q.; Calosso, M.C.; Claydon, J.A.B.; Blumenthal, J.; Moncada, F.; Nodarse, G.; Medina, Y.; Dunbar, S.G.; Wood, L.D.; Lagueux, C.J.; Campbell, C.L.; Meylan, A.B.; Meylan, P.A.; Burns Perez, V.R.; Coleman, R.A.; Strindberg, S.; Guzmán-H., V.; Hart, K.M.; Cherkiss, M.S.; Hillis-Starr, Z.; Lundgren, I.F.; Boulon Jr, R.H.; Connett, S.; Outerbridge, M.E.; Bolten, A.B.; Peters, D.P.C.
Title Somatic growth dynamics of West Atlantic hawksbill sea turtles: a spatio-temporal perspective Type Journal Article
Year 2016 Publication Ecosphere Abbreviated Journal Ecosphere
Volume 7 Issue 5 Pages e01279
Keywords climate effects; coral reefs; Eretmochelys imbricata; Greater Caribbean; marine turtles; multivariate ENSO index; sea surface temperature; somatic growth rates; West Atlantic
Abstract Somatic growth dynamics are an integrated response to environmental conditions. Hawksbill sea turtles (Eretmochelys imbricata) are long-lived, major consumers in coral reef habitats that move over broad geographic areas (hundreds to thousands of kilometers). We evaluated spatio-temporal effects on hawksbill growth dynamics over a 33-yr period and 24 study sites throughout the West Atlantic and explored relationships between growth dynamics and climate indices. We compiled the largest ever data set on somatic growth rates for hawksbills -3541 growth increments from 1980 to 2013. Using generalized additive mixed model analyses, we evaluated 10 covariates, including spatial and temporal variation, that could affect growth rates. Growth rates throughout the region responded similarly over space and time. The lack of a spatial effect or spatio-temporal interaction and the very strong temporal effect reveal that growth rates in West Atlantic hawksbills are likely driven by region-wide forces. Between 1997 and 2013, mean growth rates declined significantly and steadily by 18%. Regional climate indices have significant relationships with annual growth rates with 0- or 1-yr lags: positive with the Multivariate El Nino Southern Oscillation Index (correlation = 0.99) and negative with Caribbean sea surface temperature (correlation = -0.85). Declines in growth rates between 1997 and 2013 throughout the West Atlantic most likely resulted from warming waters through indirect negative effects on foraging resources of hawksbills. These climatic influences are complex. With increasing temperatures, trajectories of decline of coral cover and availability in reef habitats of major prey species of hawksbills are not parallel. Knowledge of how choice of foraging habitats, prey selection, and prey abundance are affected by warming water temperatures is needed to understand how climate change will affect productivity of consumers that live in association with coral reefs.
Address
Corporate Author Thesis
Publisher Place of Publication Editor
Language Summary Language Original Title
Series Editor Series Title Abbreviated Series Title
Series Volume Series Issue Edition
ISSN 2150-8925 ISBN Medium
Area Expedition Conference
Notes Approved no
Call Number FCI @ refbase @ Serial 1075
Permanent link to this record
 

 
Author Fuentes, M.M.P.B.; Monsinjon, J.; Lopez, M.; Lara, P.; Santos, A.; dei Marcovaldi, M.A.G.; Girondot, M.
Title Sex ratio estimates for species with temperature-dependent sex determination differ according to the proxy used Type Journal Article
Year 2017 Publication Ecological Modelling Abbreviated Journal Ecological Modelling
Volume 365 Issue Pages 55-67
Keywords Marine turtles; Climate change; Temperature-dependent sex determination; Loggerhead turtle; Reptile
Abstract
Address
Corporate Author Thesis
Publisher Place of Publication Editor
Language Summary Language Original Title
Series Editor Series Title Abbreviated Series Title
Series Volume Series Issue Edition
ISSN 0304-3800 ISBN Medium
Area Expedition Conference
Notes Approved no
Call Number FCI @ refbase @ Serial 1873
Permanent link to this record