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Article
Mark E. Hauber, Auteur ; Miri Dainson, Auteur ; Daniel T. Baldassarre, Auteur ; Marouf Hossain, Auteur ; Mande Holford, Auteur ; Christina Riehl, AuteurThe eggshells of communally breeding greater anis Crotophaga major consist of a blue-green pigmented calcite matrix overlaid by a chalky white layer of vaterite, both of which are polymorphs of calcium carbonate. The white vaterite layer is inta[...]
Article
Steven J. Portugal, Auteur ; James Bowen, Auteur ; Christina Riehl, AuteurDans Ibis (160(1) 2018)Birds’ eggshells are primarily composed of calcite, an abundant polymorph of calcium carbonate (CaCO3). However, the eggshells of some species are coated with spherules of vaterite, a rare and thermodynamically unstable polymorph of CaCO3, the f[...]
Article
Christina Riehl, Auteur ; Laura Jara, Auteur
Article
Christina Riehl, Auteur ; Glenn S. Adelson, AuteurFruit-eating birds are important seed dispersers in tropical forests, but little is known about the extent to which they rely on insects or how their diets vary seasonally. We used field observations of focal adults to quantify the diets of adul[...]
