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Documents disponibles écrits par cet auteur (11)
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Article
Abigail J. Lawson, Auteur ; James S. Sedinger, Auteur ; Eric J. Taylor, AuteurTraits with the greatest proportional effects on fitness are typically conserved, and traits with larger temporal variation frequently play a dominant role in population dynamics. We examined recruitment patterns and population growth in common [...]
Article
Alan G. Leach, Auteur ; Amanda W. van Dellen, Auteur ; Thomas V. Riecke, Auteur ; James S. Sedinger, AuteurLack () proposed that clutch size in species with precocial young was determined by nutrients available to females at the time of egg formation; since then others have suggested that regulation of clutch size in these species may be more complex[...]
Article
James S. Sedinger, Auteur ; Ray T. Alisauskas, AuteurCross-seasonal effects (CSEs) on waterfowl populations link together events and habitats that individuals experience as carry-over effects (COEs) throughout the annual cycle. The importance of CSEs has been recognised since at least the 1950s. S[...]
Article
Detecting conspecific brood parasitism using egg morphology in black brant Branta bernicla nigricans
Patrick R. Lemons, Auteur ; James S. Sedinger, Auteur ; Pamela Svete Randle, AuteurNumerous methods have been proposed to indirectly detect conspecific brood parasitism (CBP) in birds. Egg morphology has been suggested as a predictor of parasitism, assuming that variation in egg size is greater among females than within female[...]
Article
Christopher A. Nicolai, Auteur ; James S. Sedinger, Auteur ; Michael L. Wege, Auteur
Article
Jason L. Schamber, Auteur ; James S. Sedinger, Auteur ; David H. Ward, Auteur ; Kate R. Hagmeier, AuteurLatitudinal variation in population structure during the winter has been reported in many migratory birds, but has been documented in few species of waterfowl. Variation in environmental and social conditions at wintering sites can potentially i[...]
Article
Daniel Gibson, Auteur ; Erik J. Blomberg, Auteur ; Michael T. Atamian, Auteur ; James S. Sedinger, AuteurMales in lek mating systems tend to exhibit high fidelity to breeding leks despite substantial evidence of skewed mating success among males. Although movements between leks are often reported to be rare, such movements provide a mechanism for a[...]
Article
Abigail J. Lawson, Auteur ; James S. Sedinger, Auteur ; Eric J. Taylor, AuteurLife history patterns and their associated tradeoffs influence population dynamics, as they determine how individuals allocate resources among competing demographic traits. Here we examined life history strategies in common goldeneyes Bucephala [...]
Article
Erik J. Blomberg, Auteur ; James S. Sedinger, Auteur ; Daniel V. Nonne, Auteur ; Michael T. Atamian, AuteurTradeoffs among demographic traits are a central component of life history theory. We investigated tradeoffs between reproductive effort and survival in female greater sage-grouse breeding in the American Great Basin, while also considering repr[...]
Article
Patrick R. Lemons, Auteur ; James S. Sedinger, Auteur ; Christopher A. Nicolai, Auteur ; Lewis W. Oring, AuteurDifferential growth rate between males and females, owing to a sexual size dimorphism, has been proposed as a mechanism driving sex-biased survival. How parents respond to this selection pressure through sex ratio manipulation and sex-biased par[...]
Article
Erik J. Blomberg, Auteur ; Daniel Gibson, Auteur ; Michael T. Atamian, Auteur ; James S. Sedinger, AuteurOrganisms seek to maximize fitness by balancing reproductive allocations against mortality risk, given selection pressures inherent to the environment. However, environmental conditions are often dynamic and unpredictable, which complicates the [...]
