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Subjects / keywords: NELSON, GARETH; COLUMBIA UNIVERSITY PRESS; 570.1 N423s

Subjects / keywords: MAYR, ERNST; COLUMBIA UNIVERSITY PRESS; 599.938 M474s

Subjects / keywords: ALMEDA, FRANK; UNIVERSITY OF CALIFORNIA PRESS; 584 A478s

The Proterochampsidae includes several taxa of basal archosauriform reptiles recorded exclusively from the Middle and Upper Triassic of Argentina (Chañares and Ischigualasto Formations, Bermejo Basin) and the Middle and...

Summary Trace-element data for mid-ocean ridge basalts (MORBs) and ocean island basalts (OIB) are used to formulate chemical systematics for oceanic basalts. The data suggest that the order of trace-element incompatibili...

The organization of taking turns to talk is fundamental to conversation, as well as to other speech-exchange systems. A model for the turn-taking organization for conversation is proposed, and is examined for its compati...

Microbiology Society journals contain high-quality research papers and topical review articles. We are a not-for-profit publisher and we support and invest in the microbiology community, to the benefit of everyone. This ...

Subjects / keywords: DUDLEY, PATRICIA L; UNIVERSITY OF WASHINGTON PRESS; 595.34 D848d

This contribution summarizes and brings up to date the recommendations made by the IUGS Subcommission on the Systematics of Igneous Rocks for the classification of volcanic rocks when modal analyses are lacking. The clas...

Understanding the evolutionary history of living organisms is a central problem in biology. Until recently the ability to infer evolutionary relationships was limited by the amount of DNA sequence data available, but new...

We report measurements of the mass density, ΩM, and cosmological-constant energy density, ΩΛ of the universe based on the analysis of 42 type Ia supernovae discovered by the Supernova Cosmology Project. The magnitude-...

During May 1982 a total of 2235 km2 of land was surveyed in Southern Chile to estimate grey fox Canis griseus density. An area of 28 310 km2 was judged to be potential habitat for populations in the continental area incl...

Ecological changes in the phenology and distribution of plants and animals are occurring in all well-studied marine, freshwater, and terrestrial groups. These observed changes are heavily biased in the directions predict...

▪ Abstract The literature on effects of habitat fragmentation on biodiversity is huge. It is also very diverse, with different authors measuring fragmentation in different ways and, as a consequence, drawing different ...

▪ Abstract The focus of most ideas on diversity maintenance is species coexistence, which may be stable or unstable. Stable coexistence can be quantified by the long-term rates at which community members recover from l...

Individuals die, populations disappear, and species become extinct. That is one view of the world. But another view of the world concentrates not so much on presence or absence as upon the numbers of organisms and the de...

Species distribution models (SDMs) are numerical tools that combine observations of species occurrence or abundance with environmental estimates. They are used to gain ecological and evolutionary insights and to predict ...