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The flightless Mancallinae (Aves, Pan-Alcidae) from the Pacific Ocean are represented by one of the richest fossil records among Charadriiformes. A detailed review of previously published and previously undescribed fossils referred to Mancallinae resulted in taxonomic revision of the clade and the identification of three new species from the Miocene and Pliocene of California, USA. This monograph includes descriptions of new Mancallinae species and provides the first species-level phylogenetic hypothesis of Mancallinae relationships. Phylogenetic hypotheses were generated through the combined analysis of molecular sequence data and newly identified morphological character data for extant and extinct charadriiforms. The results of the combined phylogenetic analysis places hypotheses regarding the ethology and morphological convergence of Mancallinae to other flightless wing-propelled divers in phylogenetic context and facilitates comparisons between alcid paleodiversity and paleoclimatic events that have been hypothesized as drivers of alcid evolution.
The Alcidae, or auks, are one of the most abundant and specialized groups of seabirds in the world. They are also an extremely diverse group, exhibiting a remarkable range of form and ecological adaptations. This volume takes an in-depth and comprehensive look at these fascinating seabirds. New field study findings are incorporated into the coverage of a wide range of aspects, including breeding biology, population ecology, evolution, and conservation. [Original APL blurb] The auks, or Alcidae, are one of the most specialized groups of seabirds. They are also an extremely diverse group, exhibiting a fascinating range of form and ecological adaptations. Moreover, they are the seabirds most vu...
The auks are marine birds widespread in the cooler parts of northern seas. Often regarded as the northern hemisphere's counterparts to penguins, they are accomplished underwater swimmers, able to dive to great depths. Among bird families, they exhibit an unusual degree of variability in their breeding sites, which range from old-growth, temperate forests to barren sea-cliffs and rocky outcrops among mountain glaciers. Chick development is equally variable: in some species chicks leave for the sea soon after hatching, while in others they grow to full size at the nest site. This diversity of behavior makes the auks an excellent subject for the study of adaptation. The authors, who have extens...
Demonstrating the wide variation among complex hunter-gatherer communities in coastal settings This book explores the forms and trajectories of social complexity among fisher-hunter-gatherers who lived in coastal, estuarine, and riverine settings in precolumbian North America. Through case studies from several different regions and intellectual traditions, the contributors to this volume collectively demonstrate remarkable variation in the circumstances and histories of complex hunter-gatherers in maritime environments. The volume draws on archaeological research from the North Pacific and Alaska, the Pacific Northwest coast and interior, the California Channel Islands, and the southeast...
Biology of Marine Birds provides the only complete summary of information about marine birds ever published. It analyzes their breeding biology, ecology, taxonomy, evolution, fossil history, physiology, energetics, and conservation. The book covers four orders of marine birds in detail and includes two summary chapters that address the biology of shorebirds and wading birds and their lives in the marine environment. Summary tables give detailed information on various aspects of their life histories, breeding biology, physiology and energetics, and demography. It provides a guide to ornithologists and students for research projects.
The reliability of this method was tested using the same measurements taken from 13 extant alcid species and was found to be robust with respect to the accurate recovery of species-correlated groups of measurement data. With the exception of the similarly proportioned Alca carolinensis sp. nov. and A. olsoni sp. nov., the holotype specimens of all Alca species were recovered in separate, statistically supported clusters. These clusters of fossils were then evaluated for the presence of diagnostic morphological features, resulting in the recognition of three new Alca species. In contrast to previously described Alca species, two new species are described from holotype specimens that are associated partial skeletons. These associated specimens facilitated referral of isolated fossil material and phylogenetic estimation of Alca relationships.