Détail de l'auteur
Documents disponibles écrits par cet auteur (19)
Ajouter le résultat dans votre panier Affiner la recherche
Article
Dean J. Drake, Auteur ; Kevin J. McGraw, AuteurBioindicators of wildlife health are useful tools for studying the viability of various organisms and populations, and can include a range of phenotypic variables, such as behavior, body size, and physiological parameters, such as circulating ho[...]
Article
Kathryn N. DePinto, Auteur ; Kevin J. McGraw, AuteurAnimals use diverse signal types (e.g. visual, auditory) to honestly advertise their genotypic and/or phenotypic quality to prospective mates or rivals. Behavioural displays and other dynamically updateable signals (e.g. songs, vibrations) can r[...]
Article
S. Temidayo Osinubi, Auteur ; Kevin J. McGraw, Auteur ; Ulf Ottosson, Auteur ; Jennifer A. Brown, Auteur ; James V. Briskie, Auteur ; Hazel M. Chapman, AuteurThe study of avian integumentary colouration can offer insight into dietary and metabolic processes as well as fitness in focal species. Yet, we know relatively less about the system of feather colouration in African birds in comparison to Europ[...]
Article
Daniel B. Thomas, Auteur ; Kevin J. McGraw, AuteurVivid plumage colors are some of the best examples of elaborate trait evolution resulting from sexual selection. Bird feathers often contain high concentrations of pigment or intricate microstructures for reflecting light at distal feather tips,[...]
Article
Matthew B. Dugas, Auteur ; Kevin J. McGraw, Auteur ; Stephanie A. Strickler, AuteurThe mouth coloration of nestling birds is hypothesized to be uniquely adaptive during the nestling stage, perhaps signalling condition. To identify nestling-specific colours, we compared adult and nestling gapes in Cave Swallows (Petrochelidon f[...]
Article
Rebecca E. Koch, Auteur ; Kevin J. McGraw, Auteur ; Geoffrey E. Hill, AuteurABSTRACT Atlantic Canaries (Serinus canaria) are the most commonly kept caged bird with extensive carotenoid-based plumage coloration. Domestic strains of canaries have been bred for a variety of colors and patterns, making them a valuable model[...]
Article
Vincent J. Fasanello, Auteur ; Elizabeth D. Carlton, Auteur ; Maddie Pott, Auteur ; Nicole M. Marchetto, Auteur ; Emily Vaughn, Auteur ; Kevin J. McGraw, Auteur ; Robert A. Mauck, Auteur ; Mark F. Haussmann, AuteurThe Black Guillemot (Cepphus grylle) is a monomorphic seabird characterized by its muted plumage and bright red feet, which it prominently displays during courtship. Foot color and oxidative stress were analyzed in a Black Guillemot colony at th[...]
Article
Carlos Navarro, Auteur ; Tomas Perez-Contreras, Auteur ; Jesus M. Aviles, Auteur ; Kevin J. McGraw, Auteur ; Juan J. Soler, AuteurThe hypothesis that eggshell colouration is a sexually selected trait of female birds is based on the fact that biliverdin, the pigment responsible for blue-green colours of the eggshell, is a potent antioxidant and that only females with high a[...]
Article
Mathieu Giraudeau, Auteur ; Matthew B. Toomey, Auteur ; Kevin J. McGraw, AuteurCarotenoid pigments are involved in different physiological processes (e.g., immunoenhancement, antioxidant activity) in addition to coloring plumage and integuments. As animals cannot synthesize these pigments de novo, it has been proposed that[...]
Article
Celia K. S. Chui, Auteur ; Kevin J. McGraw, Auteur ; Stéphanie M. Doucet, AuteurCarotenoid-based ornamental coloration has long been proposed to honestly signal quality due to its dependence on individual condition. Because migration can be one of the most stressful periods of an animal's annual cycle, developing colourful [...]
Article
Geoffrey E. Hill, Auteur ; Xiaoyu Fu, Auteur ; Susan Balenger, Auteur ; Kevin J. McGraw, Auteur ; Mathieu Giraudeau, Auteur ; Wendy R. Hood, AuteurHeat-shock proteins (HSP) are molecular chaperones that play key roles in the maintenance of cellular homeostasis under variable environmental conditions. Although HSP are frequently used in studies of wild vertebrates as indicators of stress, n[...]
Article
Rebecca J. Safran, Auteur ; Kevin J. McGraw, Auteur ; Kevin M. Pilz, Auteur ; Stephanie M. Correa, AuteurEvidence is mounting that female animals use egg-yolk compounds (e.g. steroids, antioxidants) to adaptively engineer the quality of their offspring as a function of several maternal and environmental factors. Though adjustments to yolk allocatio[...]
Article
Rebecca R. Alan, Auteur ; Scott R. McWilliams, Auteur ; Kevin J. McGraw, Auteur
Article
Jennifer L. Newbrey, Auteur ; Cynthia A. Paszkowski, Auteur ; Kevin J. McGraw, Auteur ; Susanna Ogle, AuteurIn many bird species with asynchronous hatching, smaller, later-hatched nestlings are out-competed for food by their larger, earlier-hatched siblings and therefore suffer increased mortality via starvation. It is thought that female birds can ei[...]
Article
Ian Sheedy, Auteur ; Kevin J. McGraw, AuteurThere are many environmental, life-history, and physiological predictors of disease in animals, but we need more studies that examine multiple factors simultaneously to better understand comparative risks of infection in wildlife. The House Finc[...]
Article
Susana I. Peluc, Auteur ; Wendy L. Reed, Auteur ; Penelope Gibbs, Auteur ; Kevin J. McGraw, AuteurMaternal resources deposited in eggs can affect the development of several off spring phenotypic traits and result in trade-offs among them. For example, maternal androgens in eggs may be beneficial to off spring growth and competitive ability, [...]
Article
Christopher M. Hofmann, Auteur ; Kevin J. McGraw, Auteur ; Thomas W. Cronin, Auteur ; Kevin E. Omland, AuteurCarotenoids produce the brilliant red, orange, and yellow colors of many animals. However, melanin pigments can also confer some of these same hues. Because carotenoid and melanin colors are produced in different ways and may serve different sig[...]
Article
Pierre Deviche, Auteur ; Kevin J. McGraw, Auteur ; Jared Underwood, AuteurMany birds acquire carotenoid pigments from foods and deposit these pigments into feathers and bare-parts to become sexually attractive, but little work has been done on the interindividual and temporal variability in the types and amounts of ca[...]
Article
Stefanie MH Ismar, Auteur ; Claire Daniel, Auteur ; Branislav Igic, Auteur ; Peter K. Morrison-Whittle, Auteur ; Grant Ballard, Auteur ; Craig D. Millar, Auteur ; Andrew E. Fidler, Auteur ; Kevin J. McGraw, Auteur ; Kazumasa Wakamatsu, Auteur ; Brent M. Stephenson, Auteur ; others, Auteur
