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5 resultados encontrados para: AUTOR: Campbell, Jonathan A.
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Ecological regime shift drives declining growth rates of sea turtles throughout the West Atlantic
Bjorndal, Karen A. ; Bolten, Alan B. (coaut.) ; Chaloupka, Milani (coaut.) ; Saba, Vincent S. (coaut.) ; Bellini, Cláudio (coaut.) ; Marcovaldi, Maria A. G. (coaut.) ; Santos, Armando J. B. (coaut.) ; Wurdig Bortolon, Luis Felipe (coaut.) ; Meylan, Anne B. (coaut.) ; Meylan, Peter A. (coaut.) ; Gray, Jennifer (coaut.) ; Hardy, Robert (coaut.) ; Brost, Beth (coaut.) ; Bresette, Michael (coaut.) ; Gorham, Jonathan C. (coaut.) ; Connett, Stephen (coaut.) ; Van Sciver Crouchley, Barbara (coaut.) ; Dawson, Mike (coaut.) ; Hayes, Deborah (coaut.) ; Diez, Carlos E. (coaut.) ; van Dam, Robert P. (coaut.) ; Willis, Sue (coaut.) ; Nava, Mabel (coaut.) ; Hart, Kristen M. (coaut.) ; Cherkiss, Michael S. (coaut.) ; Crowder, Andrew G. (coaut.) ; Pollock, Clayton (coaut.) ; Hillis-Starr, Zandy (coaut.) ; Muñoz Tenería, Fernando A. (coaut.) ; Herrera Pavón, Roberto Luis (coaut.) ; Labrada Martagón, Vanessa (coaut.) ; Lorences, Armando (coaut.) ; Negrete Philippe, Ana (coaut.) ; Lamont, Margaret M. (coaut.) ; Foley, Allen M. (coaut.) ; Bailey, Rhonda (coaut.) ; Carthy, Raymond R. (coaut.) ; Scarpino, Russell (coaut.) ; McMichael, Erin (coaut.) ; Provancha, Jane A. (coaut.) ; Brooks, Annabelle (coaut.) ; Jardim, Adriana (coaut.) ; López Mendilaharsu, Maria de los Milagros (coaut.) ; González Paredes, Daniel (coaut.) ; Estrades, Andrés (coaut.) ; Fallabrino, Alejandro (coaut.) ; Martínez-Souza, Gustavo (coaut.) ; Vélez Rubio, Gabriela M. (coaut.) ; Boulon Jr., Ralf H. (coaut.) ; Collazo, Jaime A. (coaut.) ; Wershoven, Robert (coaut.) ; Guzmán Hernández, Vicente (coaut.) ; Stringell, Thomas B. (coaut.) ; Sanghera, Amdeep (coaut.) ; Richardson, Peter B. (coaut.) ; Broderick, Annette C. (coaut.) ; Phillips, Quinton (coaut.) ; Calosso, Marta (coaut.) ; Claydon, John A. B. (coaut.) ; Metz, Tasha L. (coaut.) ; Gordon, Amanda L. (coaut.) ; Landry Jr., Andre M. (coaut.) ; Shaver, Donna J. (coaut.) ; Blumenthal, Janice (coaut.) ; Collyer, Lucy (coaut.) ; Godley, Brendan J. (coaut.) ; McGowan, Andrew (coaut.) ; Witt, Matthew J. (coaut.) ; Campbell, Cathi L. (coaut.) ; Lagueux, Cynthia J. (coaut.) ; Bethel, Thomas L. (coaut.) ; Kenyon, Lory (coaut.) ;
Contenido en: Global Change Biology Vol. 23, no. 11 (November 2017), p. 4556–4568 ISSN: 1365-2486
Nota: Solicítelo con su bibliotecario/a
Resumen en: Inglés |
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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.

*En hemeroteca, SIBE-San Cristóbal
Divergence in morphology, but not habitat use, despite low genetic differentiation among insular populations of the lizard Anolis lemurinus in Honduras
Logan, Michael L. ; Montgomery, Chad E. (coaut.) ; Boback, Scott M. (coaut.) ; Reed, Robert N. (coaut.) ; Campbell, Jonathan A. (coaut.) ;
Contenido en: Journal of Tropical Ecology Vol. 28, no. 2 (March 2012), p. 215-222 ISSN: 0266-4674
Bibliotecas: San Cristóbal
SIBE San Cristóbal
51260-10 (Disponible)
Disponibles para prestamo: 1
Nota: En hemeroteca, SIBE-San Cristóbal
Resumen en: Inglés |
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Studies of recently isolated populations are useful because observed differences can often be attributed to current environmental variation. Two populations of the lizard Anolis lemurinus have been isolated on the islands of Cayo Menor and Cayo Mayor in the Cayos Cochinos Archipelago of Honduras for less than 15 000 y. We measured 12 morphometric and 10 habitat-use variables on 220 lizards across these islands in 2 y, 2008 and 2009. The goals of our study were (1) to explore patterns of sexual dimorphism, and (2) to test the hypothesis that differences in environment among islandsmay have driven divergence in morphology and habitat use despite genetic homogeneity among populations. Although we found no differences among sexes in habitat use, males had narrower pelvic girdles and longer toe pads on both islands. Between islands, males differed in morphology, but neither males nor females differed in habitat use. Our data suggest that either recent selection has operated differentially on males despite low genetic differentiation, or that they display phenotypic plasticity in response to environmental variation.We suggest that patternsmay be driven by variation in intrapopulation density or differences in predator diversity among islands.

The venomous reptiles of the western hemisphere / Jonathan A. Campbell, William W. Lamar ; with contributions by Edmund D. Brodie III, ... [et al.]
Campbell, Jonathan A. ; Lamar, William W. (coaut.) (1950-) ;
New York : Cornell University , c2004
Clasificación: 597.96165 / C3
Bibliotecas: Chetumal , San Cristóbal
SIBE Chetumal
ECO030008170 (Disponible) , ECO030008169 (Disponible)
Disponibles para prestamo: 2
SIBE San Cristóbal
ECO010008876 (Prestado) , ECO010008875 (Prestado)
Disponibles para prestamo: 0
Resumen en: Inglés |
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Since the publication of The Venomous Reptiles of Latin America by Cornell University Press in 1989, scientific discoveries and taxonomic changes have resulted in the addition of many taxa and species to the herpetological fauna of the Western Hemisphere. This updated, heavily rewritten, and greatly expanded version of that book now includes accounts of all 192 species of venomous snakes and lizards found in the Western Hemisphere. This two-volume set is illustrated with stunning color photographs, including portraits of venomous reptiles (many of which are unique in showing newly discovered species and views of male, female, and juvenile individuals); images of snakebites, an important tool for diagnosis and treatment; color vegetation and topographic maps; black-and-white photographs; line figures; and completely revised distribution maps. Volume I includes a list of tables, preface, introduction, and regional/country accounts with related bilingual identification keys and vegetation and topographic maps. Genus and species accounts in this volume treat the lizards, coralsnakes, seasnakes, and all the pitvipers except rattlesnakes; these accounts are accompanied by color photographs of each species. Volume I also contains a complete index to both volumes.

Volume II includes descriptions of all known species of rattlesnakes. It also features four chapters by experts on mimicry, evolution, and snakebite treatment in tropical and temperate America. A glossary, literature-cited section, and index serve both volumes. Color photographs portray rattlesnakes, mimics, and the damage done by snakebite. The Venomous Reptiles of the Western Hemisphere, Volumes I and II is an essential reference for all naturalists interested in herpetology--amateurs impressed by the beauty and complexity of venomous reptiles as well as professional herpetologists and their students conducting research in the classroom, at the zoo, and in the field.

Biology of the pitvipers / editors: Jonathan A. Campbell, Edmund D. Brodie
Campbell, Jonathan A. (ed.) ; Brodie, Edmund D. (coed.) ;
Tyler, Texas : Selva Publishing , 1992
Clasificación: 597.963 / B5
Bibliotecas: Chetumal
SIBE Chetumal
ECO030008194 (Disponible)
Disponibles para prestamo: 1
Índice | Resumen en: Inglés |
Resumen en inglés

An exceptional collection of 30 seperate contributions by 51 authorities covering the systematics, evolution, natural history, behavior, and conservation of the world's pit-vipers. Also included are papers providing a comprehensive review of pit-viper envenomation and treatment and a discussion of Paramyxoviral infections in animals maintained in captivity. A must have volume for everyone interested in Pit-Vipers. Illustrated with 122 color and 100 b/w photos, numerous graphs, charts and tables, multiple bibliographies.


Phylogeny and historical biogeography of the palm-pitvipers, genus Bothriechis: Biochemical and morphological evidence
Phylogenetic relationships of Central and South American Pitvipers of the genus Bothrops (sensu lato): Cladistic analyses of biochemical and anatomical characters
Phylogenetic relationships among vipers: Immunological evidence
Molecular systematics of the Agkistrodon complex
Relationships among montane populations of Crotalus lepidus and Crotalus triseriatus
Variation, infraspecific relationships, and biogeography of the ridgenose rattlesnake, Crotalus willardi
The ecological and behavioral context for pitviper evolution
Embryonic development of the maxillary and prefrontal bones of crotaline snakes
The cardiovascular adaptations of viperid snakes
Serologic relationships among pitvipers: Evidence from plasma albumins and immunodiffusion. SHERMAN A
Distribution of a Mojave toxin-like protein in rock rattlesnake (Crotalus lepidus) venom
Is long-term sperm storage an important component of the reproductive biology of temperate pitvipers?
Radiotelemetric field studies of pitvipers: Data acquisition and analysis
Natural History
Natural history of thejararaca pitviper, Bothrops jararaca, in southeastern Brazil
Biology of the Yucatan hognosed pitviper, Porthidium yucatanicum
Biology of the montane pitviper, Porthidium godmani
Emergence, ingress, and seasonal captures at dens of northern timber rattlesnakes, Crotalus horridus
Phenology of the timber rattlesnake (Crotalus horridus) in an unglaciated section of the Appalachian Mountains
Autecology of the Mojave desert sidewinder (Crotalus cerastes cerastes) at Kelso Dunes, Mojave Desert, California
The Chemical ecology of crotaline snakes

Pitviper mating systems: Ecological potential, sexual selection and microevolution
Geographic variation in some activities associated with hibernation in Neartic pitvipers
Laboratory studies on piscivory in an opportunistic pitviper, the cottonmouth, Agkistrodon piscivorus
Searching behaviors by rattlesnakes following predatory strikes
The mass of venom expended by prairie rattlesnakes when feeding on rodent prey
A preliminary analysis of the movement and home range size of the sidewinder, Crotalus cerastes
The sequelae of pitviper envenomation in the United States
A review of first aid measures for pitviper bite in North America with an appraisal of Extractor™ suction and stun gun electroshock
Maintenance and Conservation
Paramyxoviral infection of viperid snakes
The future of pitvipers
Plates Index

The venomous reptiles of Latin America / Jonathan A. Campbell and William W. Lamar
Campbell, Jonathan A. ; Lamar, William W. (coaut.) ;
Ithaca, New York : Cornell University , 1989
Clasificación: C/598.12098 / C3
Bibliotecas: Chetumal , San Cristóbal
SIBE Chetumal
ECO030005917 (Disponible)
Disponibles para prestamo: 1
SIBE San Cristóbal
SAC002022 (Prestado)
Disponibles para prestamo: 0