Ecological regime shift drives declining growth rates of sea turtles throughout the West Atlantic.

Autor: Bjorndal KA; Archie Carr Center for Sea Turtle Research and Department of Biology, University of Florida, Gainesville, FL, USA., Bolten AB; Archie Carr Center for Sea Turtle Research and Department of Biology, University of Florida, Gainesville, FL, USA., Chaloupka M; Ecological Modelling Services Pty Ltd, University of Queensland, St Lucia, QLD, Australia., Saba VS; NOAA National Marine Fisheries Service, Northeast Fisheries Science Center, Geophysical Fluid Dynamics Laboratory, Princeton, NJ, USA., Bellini C; Centro TAMAR-ICMBio, CLBI - Parnamirim, Rio Grande do Norte, Brazil., Marcovaldi MAG; Fundação Pró TAMAR, Salvador, Bahia, Brazil., Santos AJB; Fundação Pró-TAMAR, Pernambuco, Brazil., Bortolon LFW; Fundação Pró-TAMAR, Pernambuco, Brazil., Meylan AB; Florida Fish and Wildlife Conservation Commission, Fish and Wildlife Research Institute, St. Petersburg, FL, USA.; Smithsonian Tropical Research Institute, Washington, DC, USA., Meylan PA; Smithsonian Tropical Research Institute, Washington, DC, USA.; Natural Sciences Collegium, Eckerd College, St. Petersburg, FL, USA., Gray J; Bermuda Turtle Project, Flatts, Bermuda., Hardy R; Florida Fish and Wildlife Conservation Commission, Fish and Wildlife Research Institute, St. Petersburg, FL, USA., Brost B; Florida Fish and Wildlife Conservation Commission, Fish and Wildlife Research Institute, St. Petersburg, FL, USA., Bresette M; Inwater Research Group, Jensen Beach, FL, USA., Gorham JC; Inwater Research Group, Jensen Beach, FL, USA., Connett S; Family Island Research and Education, Newport, RI, USA., Crouchley BVS; Family Island Research and Education, Newport, RI, USA., Dawson M; Geronimo Program, St. George's School, Newport, RI, USA., Hayes D; Geronimo Program, St. George's School, Newport, RI, USA., Diez CE; DRNA-PR, San Juan, Puerto Rico., van Dam RP; Chelonia Inc, San Juan, Puerto Rico., Willis S; Sea Turtle Conservation Bonaire, Kralendijk, Bonaire, Dutch Caribbean., Nava M; Sea Turtle Conservation Bonaire, Kralendijk, Bonaire, Dutch Caribbean., Hart KM; U.S. Geological Survey, Wetland and Aquatic Research Center, Davie, FL, USA., Cherkiss MS; U.S. Geological Survey, Wetland and Aquatic Research Center, Davie, FL, USA., Crowder AG; Cherokee Nation Technologies, NSU Center for Collaborative Research, Davie, FL, USA., Pollock C; National Park Service, Christiansted, St. Croix, Virgin Islands., Hillis-Starr Z; National Park Service, Christiansted, St. Croix, Virgin Islands., Muñoz Tenería FA; Facultad de Agronomía y Veterinaria, Universidad Autónoma de San Luis Potosí, San Luis Potosí, México., Herrera-Pavón R; El Colegio de la Frontera Sur -Unidad Chetumal, Chetumal, Quintana Roo, México., Labrada-Martagón V; Facultad de Ciencias, Universidad Autónoma de San Luis Potosí, San Luis Potosí, México., Lorences A; Dirección de Ecología Municipio de Solidaridad, Quintana Roo, México., Negrete-Philippe A; Parque Xcaret, Municipio de Solidaridad Playa del Carmen, Quintana Roo, México., Lamont MM; US Geological Survey, Wetland and Aquatic Research Center, Gainesville, FL, USA., Foley AM; Florida Fish and Wildlife Conservation Commission, Fish and Wildlife Research Institute, Jacksonville Field Laboratory, Jacksonville, FL, USA., Bailey R; Florida Fish and Wildlife Conservation Commission, Fish and Wildlife Research Institute, St. Petersburg, FL, USA., Carthy RR; US Geological Survey, Florida Cooperative Fish and Wildlife Research Unit, Gainesville, FL, USA., Scarpino R; Florida Cooperative Fish and Wildlife Research Unit, Department of Wildlife Ecology and Conservation, University of Florida, Gainesville, FL, USA., McMichael E; Florida Cooperative Fish and Wildlife Research Unit, Department of Wildlife Ecology and Conservation, University of Florida, Gainesville, FL, USA., Provancha JA; Environmental Services, Integrated Mission Support Services, Kennedy Space Center, Florida, USA., Brooks A; Cape Eleuthera Institute, Rock Sound, Eleuthera, The Bahamas., Jardim A; Fundação Pró TAMAR, Salvador, Bahia, Brazil., López-Mendilaharsu M; Fundação Pró TAMAR, Salvador, Bahia, Brazil., González-Paredes D; Karumbé, Montevideo, Uruguay., Estrades A; Karumbé, Montevideo, Uruguay., Fallabrino A; Karumbé, Montevideo, Uruguay., Martínez-Souza G; Karumbé, Montevideo, Uruguay., Vélez-Rubio GM; Karumbé, Montevideo, Uruguay., Boulon RH Jr; National Park Service, St. John, Virgin Islands., Collazo JA; U.S. Geological Survey, North Carolina Cooperative Fish and Wildlife Research Unit, Department of Applied Ecology, North Carolina State University, Raleigh, NC, USA., Wershoven R; Boca Raton, FL, USA., Guzmán Hernández V; APFFLT-CONANP, Campeche, México., Stringell TB; Centre for Ecology and Conservation, University of Exeter, Penryn, Cornwall, UK., Sanghera A; Marine Conservation Society, Ross-on-Wye, Herefordshire, UK., Richardson PB; Marine Conservation Society, Ross-on-Wye, Herefordshire, UK., Broderick AC; Centre for Ecology and Conservation, University of Exeter, Penryn, Cornwall, UK., Phillips Q; Department of Environment and Coastal Resources, National Environment Centre, Providenciales, Turks and Caicos Islands., Calosso M; The School for Field Studies, Center for Marine Resource Studies, South Caicos, Turks and Caicos Islands., Claydon JAB; Department of Environment and Coastal Resources, National Environment Centre, Providenciales, Turks and Caicos Islands., Metz TL; Texas A&M University at Galveston, Galveston, TX, USA., Gordon AL; Environmental Institute of Houston, University of Houston - Clear Lake, Houston, TX, USA., Landry AM Jr; Texas A&M University at Galveston, Galveston, TX, USA., Shaver DJ; Padre Island National Seashore, Corpus Christi, TX, USA., Blumenthal J; Department of Environment, Grand Cayman, Cayman Islands., Collyer L; Department of Environment, Grand Cayman, Cayman Islands., Godley BJ; Centre for Ecology and Conservation, University of Exeter, Penryn, Cornwall, UK., McGowan A; Centre for Ecology and Conservation, University of Exeter, Penryn, Cornwall, UK., Witt MJ; Environment and Sustainability Institute, University of Exeter, Penryn, Cornwall, UK., Campbell CL; Archie Carr Center for Sea Turtle Research and Department of Biology, University of Florida, Gainesville, FL, USA., Lagueux CJ; Archie Carr Center for Sea Turtle Research and Department of Biology, University of Florida, Gainesville, FL, USA., Bethel TL; Hope Town, Abaco, The Bahamas., Kenyon L; Elbow Reef Lighthouse Society, Abaco, The Bahamas.
Jazyk: angličtina
Zdroj: Global change biology [Glob Chang Biol] 2017 Nov; Vol. 23 (11), pp. 4556-4568. Date of Electronic Publication: 2017 Jun 01.
DOI: 10.1111/gcb.13712
Abstrakt: Somatic growth is an integrated, individual-based response to environmental conditions, especially in ectotherms. Growth dynamics of large, mobile animals are particularly useful as bio-indicators of environmental change at regional scales. We assembled growth rate data from throughout the West Atlantic for green turtles, Chelonia mydas, which are long-lived, highly migratory, primarily herbivorous mega-consumers that may migrate over hundreds to thousands of kilometers. Our dataset, the largest ever compiled for sea turtles, has 9690 growth increments from 30 sites from Bermuda to Uruguay from 1973 to 2015. Using generalized additive mixed models, we evaluated covariates that could affect growth rates; body size, diet, and year have significant effects on growth. Growth increases in early years until 1999, then declines by 26% to 2015. The temporal (year) effect is of particular interest because two carnivorous species of sea turtles-hawksbills, Eretmochelys imbricata, and loggerheads, Caretta caretta-exhibited similar significant declines in growth rates starting in 1997 in the West Atlantic, based on previous studies. These synchronous declines in productivity among three sea turtle species across a trophic spectrum provide strong evidence that an ecological regime shift (ERS) in the Atlantic is driving growth dynamics. The ERS resulted from a synergy of the 1997/1998 El Niño Southern Oscillation (ENSO)-the strongest on record-combined with an unprecedented warming rate over the last two to three decades. Further support is provided by the strong correlations between annualized mean growth rates of green turtles and both sea surface temperatures (SST) in the West Atlantic for years of declining growth rates (r = -.94) and the Multivariate ENSO Index (MEI) for all years (r = .74). Granger-causality analysis also supports the latter finding. We discuss multiple stressors that could reinforce and prolong the effect of the ERS. This study demonstrates the importance of region-wide collaborations.
(© 2017 John Wiley & Sons Ltd.)
Databáze: MEDLINE
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